Stream Chatty added as example (#21)

* app updated * readme updated * rename base folder * update chatty's readme Co-authored-by: Neevash Ramdial <mail@neevash.dev>
2021-03-10 13:53:20 -05:00
parent c86652dcfc
commit bd6bb66279
111 changed files with 3806 additions and 0 deletions
@@ -0,0 +1,43 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+ios/Runner/GoogleService-Info.plist
+android/app/google-services.json
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: 9b2d32b605630f28625709ebd9d78ab3016b2bf6
+  channel: stable
+
+project_type: app
@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2021, Diego Velásquez López
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,41 @@
+# Stream Chatty
+
+Stream Chatty is a sample chat app made in Flutter using [Stream Chat](https://getstream.io/chat/sdk/flutter/), [Firebase](https://firebase.google.com/), and [flutter_bloc](https://bloclibrary.dev/#/). It has full light and dark mode support, real-time chat, and full authentication using Firebase auth. 
+
+Stream Chatty was created by [Diego Velasquez](http://www.twitter.com/diegoveloper) as part of a Youtube series. A step by step guide to building Stream Chatty from scratch can be found here:
+
+- Part 1 - https://www.youtube.com/watch?v=H7FjCWHmP9Y => Project Structure, StreamChat, flutter_bloc
+- Part 2 - https://www.youtube.com/watch?v=xGXvgrA_vNY => Clean Architecture, dependency injection, auth, storage, chat
+- Part 3 - https://www.youtube.com/watch?v=EVvGdFc4SvQ => UI/UX, customizing StreamChat and demo
+
+> Activate English subtitles
+
+# Image
+
+![design](art/fluchat.png?raw=true "Stream Chatty")
+
+
+# Design 
+
+- https://dribbble.com/shots/15263978-Fluchat
+- https://projects.invisionapp.com/prototype/Chat-App-cklk8tiia002tqz01u0q1u3cl/play/9ef3ca44
+
+# Diego's Networks
+
+- www.twitter.com/diegoveloper
+- www.youtube.com/diegoveloper
+
+## Features
+
+- Login using Firebase Auth and Google Sign In
+- Upload pictures using Firebase Storage
+- Realtime chat using StreamChat package
+- Dark mode/Light mode
+- State Management using flutter_bloc and cubits
+
+## Installation
+
+- Clone project
+- Configure Firebase (google-services.json and Google-Service.info.plist files)
+- Configure Google Sign In 
+- Configure your Stream project
@@ -0,0 +1,11 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
@@ -0,0 +1,69 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 29
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    lintOptions {
+        disable 'InvalidPackage'
+        checkReleaseBuilds false
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "com.diegoveloper.fluchat"
+        minSdkVersion 26
+        targetSdkVersion 29
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+            minifyEnabled false
+            useProguard false
+            shrinkResources false
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
+
+apply plugin: 'com.google.gms.google-services'
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.diegoveloper.fluchat">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
@@ -0,0 +1,48 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.diegoveloper.fluchat">
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="Chatty"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <!-- Displays an Android View that continues showing the launch screen
+                 Drawable until Flutter paints its first frame, then this splash
+                 screen fades out. A splash screen is useful to avoid any visual
+                 gap between the end of Android's launch screen and the painting of
+                 Flutter's first frame. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.SplashScreenDrawable"
+              android:resource="@drawable/launch_background"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+</manifest>
@@ -0,0 +1,6 @@
+package com.diegoveloper.fluchat
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">@android:color/white</item>
+    </style>
+</resources>
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.diegoveloper.fluchat">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
@@ -0,0 +1,32 @@
+buildscript {
+    ext.kotlin_version = '1.3.50'
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.google.gms:google-services:4.3.3'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.useAndroidX=true
+android.enableJetifier=true
+android.enableR8=true
@@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
@@ -0,0 +1,11 @@
+include ':app'
+
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
+
+assert localPropertiesFile.exists()
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+
+def flutterSdkPath = properties.getProperty("flutter.sdk")
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
@@ -0,0 +1 @@
+include ':app'
@@ -0,0 +1,32 @@
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>$(DEVELOPMENT_LANGUAGE)</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>11.0</string>
+</dict>
+</plist>
@@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
+#include "Generated.xcconfig"
@@ -0,0 +1,2 @@
+#include "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
+#include "Generated.xcconfig"
@@ -0,0 +1,609 @@
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+	};
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+		};
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+			children = (
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+				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
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+			path = Runner;
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+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1020"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>
@@ -0,0 +1,13 @@
+import UIKit
+import Flutter
+
+@UIApplicationMain
+@objc class AppDelegate: FlutterAppDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    GeneratedPluginRegistrant.register(with: self)
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}
@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>Chatty</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleURLTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>CFBundleURLSchemes</key>
+			<array>
+				<string>com.googleusercontent.apps.880353337418-6ogtdb83ub9sjfovcv2k98dte87fmpnv</string>
+			</array>
+		</dict>
+	</array>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>NSCameraUsageDescription</key>
+	<string>Used to demonstrate image picker plugin</string>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>Used to capture audio for image picker plugin</string>
+	<key>NSPhotoLibraryUsageDescription</key>
+	<string>Used to demonstrate image picker plugin</string>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>
@@ -0,0 +1 @@
+#import "GeneratedPluginRegistrant.h"
@@ -0,0 +1,7 @@
+import 'package:stream_chatter/domain/models/auth_user.dart';
+
+abstract class AuthRepository {
+  Future<AuthUser> getAuthUser();
+  Future<AuthUser> signIn();
+  Future<void> logout();
+}
@@ -0,0 +1,5 @@
+import 'dart:io';
+
+abstract class ImagePickerRepository {
+  Future<File> pickImage();
+}
@@ -0,0 +1,21 @@
+import 'package:stream_chatter/data/auth_repository.dart';
+import 'package:stream_chatter/domain/models/auth_user.dart';
+
+class AuthLocalImpl extends AuthRepository {
+  @override
+  Future<AuthUser> getAuthUser() async {
+    await Future.delayed(const Duration(seconds: 2));
+    return AuthUser('diego');
+  }
+
+  @override
+  Future<AuthUser> signIn() async {
+    await Future.delayed(const Duration(seconds: 2));
+    return AuthUser('diego');
+  }
+
+  @override
+  Future<void> logout() async {
+    return;
+  }
+}
@@ -0,0 +1,12 @@
+import 'dart:io';
+import 'package:image_picker/image_picker.dart';
+import 'package:stream_chatter/data/image_picker_repository.dart';
+
+class ImagePickerImpl extends ImagePickerRepository {
+  @override
+  Future<File> pickImage() async {
+    final picker = ImagePicker();
+    final pickedFile = await picker.getImage(source: ImageSource.gallery, maxWidth: 400);
+    return File(pickedFile.path);
+  }
+}
@@ -0,0 +1,15 @@
+import 'package:stream_chatter/data/persistent_storage_repository.dart';
+
+class PersistentStorageLocalImpl extends PersistentStorageRepository {
+  @override
+  Future<bool> isDarkMode() async {
+    await Future.delayed(const Duration(milliseconds: 50));
+    return false;
+  }
+
+  @override
+  Future<void> updateDarkMode(bool isDarkMode) async {
+    await Future.delayed(const Duration(milliseconds: 50));
+    return;
+  }
+}
@@ -0,0 +1,86 @@
+import 'package:stream_chatter/data/stream_api_repository.dart';
+import 'package:stream_chatter/domain/models/chat_user.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class StreamApiLocalImpl extends StreamApiRepository {
+  StreamApiLocalImpl(this._client);
+
+  final StreamChatClient _client;
+
+  @override
+  Future<ChatUser> connectUser(ChatUser user, String token) async {
+    Map<String, dynamic> extraData = {};
+    if (user.image != null) {
+      extraData['image'] = user.image;
+    }
+    if (user.name != null) {
+      extraData['name'] = user.name;
+    }
+    await _client.disconnect();
+    await _client.connectUser(
+      User(id: user.id, extraData: extraData),
+      token,
+    );
+    return user;
+  }
+
+  @override
+  Future<List<ChatUser>> getChatUsers() async {
+    final result = await _client.queryUsers();
+    final chatUsers = result.users
+        .where((element) => element.id != _client.state.user.id)
+        .map(
+          (e) => ChatUser(
+            id: e.id,
+            name: e.name,
+            image: e.extraData['image'],
+          ),
+        )
+        .toList();
+    return chatUsers;
+  }
+
+  @override
+  Future<String> getToken(String userId) async {
+    return _client.devToken(userId);
+  }
+
+  @override
+  Future<Channel> createGroupChat(String channelId, String name, List<String> members, {String image}) async {
+    final channel = _client.channel('messaging', id: channelId, extraData: {
+      'name': name,
+      'image': image,
+      'members': [_client.state.user.id, ...members],
+    });
+    await channel.watch();
+    return channel;
+  }
+
+  @override
+  Future<Channel> createSimpleChat(String friendId) async {
+    final channel =
+        _client.channel('messaging', id: '${_client.state.user.id.hashCode}${friendId.hashCode}', extraData: {
+      'members': [
+        friendId,
+        _client.state.user.id,
+      ],
+    });
+    await channel.watch();
+    return channel;
+  }
+
+  @override
+  Future<void> logout() {
+    return _client.disconnect();
+  }
+
+  @override
+  Future<bool> connectIfExist(String userId) async {
+    final token = await getToken(userId);
+    await _client.connectUser(
+      User(id: userId),
+      token,
+    );
+    return _client.state.user.name != null && _client.state.user.name != userId;
+  }
+}
@@ -0,0 +1,10 @@
+import 'dart:io';
+
+import 'package:stream_chatter/data/upload_storage_repository.dart';
+
+class UploadStorageLocalImpl extends UploadStorageRepository {
+  @override
+  Future<String> uploadPhoto(File file, String path) async {
+    return 'https://lh3.googleusercontent.com/a-/AOh14GjhqGZ-V7tNXS1pOIp9vbBij4OS9JbzxXgxgy1t=s600-k-no-rp-mo';
+  }
+}
@@ -0,0 +1,4 @@
+abstract class PersistentStorageRepository {
+  Future<bool> isDarkMode();
+  Future<void> updateDarkMode(bool isDarkMode);
+}
@@ -0,0 +1,41 @@
+import 'package:firebase_auth/firebase_auth.dart';
+import 'package:stream_chatter/data/auth_repository.dart';
+import 'package:stream_chatter/domain/models/auth_user.dart';
+import 'package:google_sign_in/google_sign_in.dart';
+
+class AuthImpl extends AuthRepository {
+  FirebaseAuth _auth = FirebaseAuth.instance;
+
+  @override
+  Future<AuthUser> getAuthUser() async {
+    final user = _auth.currentUser;
+    if (user != null) {
+      return AuthUser(user.uid);
+    }
+    return null;
+  }
+
+  @override
+  Future<AuthUser> signIn() async {
+    try {
+      UserCredential userCredential;
+      final GoogleSignInAccount googleUser = await GoogleSignIn().signIn();
+      final GoogleSignInAuthentication googleAuth = await googleUser.authentication;
+      final GoogleAuthCredential googleAuthCredential = GoogleAuthProvider.credential(
+        accessToken: googleAuth.accessToken,
+        idToken: googleAuth.idToken,
+      );
+      userCredential = await _auth.signInWithCredential(googleAuthCredential);
+      final user = userCredential.user;
+      return AuthUser(user.uid);
+    } catch (e) {
+      print(e);
+      throw Exception('login error');
+    }
+  }
+
+  @override
+  Future<void> logout() async {
+    return _auth.signOut();
+  }
+}
@@ -0,0 +1,18 @@
+import 'package:stream_chatter/data/persistent_storage_repository.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+const _isDarkMode = 'isDarkMode';
+
+class PersistentStorageImpl extends PersistentStorageRepository {
+  @override
+  Future<bool> isDarkMode() async {
+    final preference = await SharedPreferences.getInstance();
+    return preference.getBool(_isDarkMode) ?? false;
+  }
+
+  @override
+  Future<void> updateDarkMode(bool isDarkMode) async {
+    final preference = await SharedPreferences.getInstance();
+    return await preference.setBool(_isDarkMode, isDarkMode);
+  }
+}
@@ -0,0 +1,102 @@
+import 'dart:convert';
+
+import 'package:stream_chatter/data/stream_api_repository.dart';
+import 'package:stream_chatter/domain/models/chat_user.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+import 'package:http/http.dart' as http;
+
+class StreamApiImpl extends StreamApiRepository {
+  StreamApiImpl(this._client);
+
+  final StreamChatClient _client;
+
+  @override
+  Future<ChatUser> connectUser(ChatUser user, String token) async {
+    Map<String, dynamic> extraData = {};
+    if (user.image != null) {
+      extraData['image'] = user.image;
+    }
+    if (user.name != null) {
+      extraData['name'] = user.name;
+    }
+    await _client.disconnect();
+    await _client.connectUser(
+      User(id: user.id, extraData: extraData),
+      token,
+    );
+    return user;
+  }
+
+  @override
+  Future<List<ChatUser>> getChatUsers() async {
+    final result = await _client.queryUsers();
+    final chatUsers = result.users
+        .where((element) => element.id != _client.state.user.id)
+        .map(
+          (e) => ChatUser(
+            id: e.id,
+            name: e.name,
+            image: e.extraData['image'],
+          ),
+        )
+        .toList();
+    return chatUsers;
+  }
+
+  @override
+  Future<String> getToken(String userId) async {
+    //TODO: use your own implementation in Production
+    final response = await http.post(
+      'your_backend_url',
+      body: jsonEncode(<String, String>{'id': userId}),
+      headers: <String, String>{
+        'Content-Type': 'application/json; charset=UTF-8',
+      },
+    );
+    final token = jsonDecode(response.body)['token'];
+
+    //In Development mode you can just use :
+    // _client.devToken(userId);
+
+    return token;
+  }
+
+  @override
+  Future<Channel> createGroupChat(String id, String name, List<String> members, {String image}) async {
+    final channel = _client.channel('messaging', id: id, extraData: {
+      'name': name,
+      'image': image,
+      'members': [_client.state.user.id, ...members],
+    });
+    await channel.watch();
+    return channel;
+  }
+
+  @override
+  Future<Channel> createSimpleChat(String friendId) async {
+    final channel =
+        _client.channel('messaging', id: '${_client.state.user.id.hashCode}${friendId.hashCode}', extraData: {
+      'members': [
+        friendId,
+        _client.state.user.id,
+      ],
+    });
+    await channel.watch();
+    return channel;
+  }
+
+  @override
+  Future<void> logout() async {
+    return _client.disconnect();
+  }
+
+  @override
+  Future<bool> connectIfExist(String userId) async {
+    final token = await getToken(userId);
+    await _client.connectUser(
+      User(id: userId),
+      token,
+    );
+    return _client.state.user.name != null && _client.state.user.name != userId;
+  }
+}
@@ -0,0 +1,13 @@
+import 'dart:io';
+import 'package:firebase_storage/firebase_storage.dart' as firebase_storage;
+import 'package:stream_chatter/data/upload_storage_repository.dart';
+
+class UploadStorageImpl extends UploadStorageRepository {
+  @override
+  Future<String> uploadPhoto(File file, String path) async {
+    final ref = firebase_storage.FirebaseStorage.instance.ref(path);
+    final uploadTask = ref.putFile(file);
+    await uploadTask;
+    return await ref.getDownloadURL();
+  }
+}
@@ -0,0 +1,12 @@
+import 'package:stream_chatter/domain/models/chat_user.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+abstract class StreamApiRepository {
+  Future<List<ChatUser>> getChatUsers();
+  Future<String> getToken(String userId);
+  Future<bool> connectIfExist(String userId);
+  Future<ChatUser> connectUser(ChatUser user, String token);
+  Future<Channel> createGroupChat(String channelId, String name, List<String> members, {String image});
+  Future<Channel> createSimpleChat(String friendId);
+  Future<void> logout();
+}
@@ -0,0 +1,5 @@
+import 'dart:io';
+
+abstract class UploadStorageRepository {
+  Future<String> uploadPhoto(File file, String path);
+}
@@ -0,0 +1,56 @@
+import 'package:stream_chatter/data/auth_repository.dart';
+import 'package:stream_chatter/data/image_picker_repository.dart';
+import 'package:stream_chatter/data/local/auth_local_impl.dart';
+import 'package:stream_chatter/data/local/image_picker_impl.dart';
+import 'package:stream_chatter/data/local/persistent_storage_local_impl.dart';
+import 'package:stream_chatter/data/local/stream_api_local_impl.dart';
+import 'package:stream_chatter/data/local/upload_storage_local_impl.dart';
+import 'package:stream_chatter/data/persistent_storage_repository.dart';
+import 'package:stream_chatter/data/prod/auth_impl.dart';
+import 'package:stream_chatter/data/prod/persistent_storage_impl.dart';
+import 'package:stream_chatter/data/prod/stream_api_impl.dart';
+import 'package:stream_chatter/data/prod/upload_storage_impl.dart';
+import 'package:stream_chatter/data/stream_api_repository.dart';
+import 'package:stream_chatter/data/upload_storage_repository.dart';
+import 'package:stream_chatter/domain/usecases/create_group_usecase.dart';
+import 'package:stream_chatter/domain/usecases/login_usecase.dart';
+import 'package:stream_chatter/domain/usecases/logout_usecase.dart';
+import 'package:stream_chatter/domain/usecases/profile_sign_in_usecase.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+List<RepositoryProvider> buildRepositories(StreamChatClient client) {
+  //TODO: Here you can use your local implementations of your repositories
+  return [
+    RepositoryProvider<StreamApiRepository>(create: (_) => StreamApiImpl(client)),
+    RepositoryProvider<PersistentStorageRepository>(create: (_) => PersistentStorageImpl()),
+    RepositoryProvider<AuthRepository>(create: (_) => AuthImpl()),
+    RepositoryProvider<UploadStorageRepository>(create: (_) => UploadStorageImpl()),
+    RepositoryProvider<ImagePickerRepository>(create: (_) => ImagePickerImpl()),
+    RepositoryProvider<ProfileSignInUseCase>(
+      create: (context) => ProfileSignInUseCase(
+        context.read(),
+        context.read(),
+        context.read(),
+      ),
+    ),
+    RepositoryProvider<CreateGroupUseCase>(
+      create: (context) => CreateGroupUseCase(
+        context.read(),
+        context.read(),
+      ),
+    ),
+    RepositoryProvider<LogoutUseCase>(
+      create: (context) => LogoutUseCase(
+        context.read(),
+        context.read(),
+      ),
+    ),
+    RepositoryProvider<LoginUseCase>(
+      create: (context) => LoginUseCase(
+        context.read(),
+        context.read(),
+      ),
+    ),
+  ];
+}
@@ -0,0 +1,10 @@
+enum AuthErrorCode {
+  not_auth,
+  not_chat_user,
+}
+
+class AuthException implements Exception {
+  AuthException(this.error);
+
+  final AuthErrorCode error;
+}
@@ -0,0 +1,4 @@
+class AuthUser {
+  AuthUser(this.id);
+  final String id;
+}
@@ -0,0 +1,6 @@
+class ChatUser {
+  const ChatUser({this.name, this.image, this.id});
+  final String name;
+  final String image;
+  final String id;
+}
@@ -0,0 +1,38 @@
+import 'dart:io';
+
+import 'package:stream_chatter/data/stream_api_repository.dart';
+import 'package:stream_chatter/data/upload_storage_repository.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+import 'package:uuid/uuid.dart';
+
+class CreateGroupInput {
+  CreateGroupInput({this.imageFile, this.name, this.members});
+  final File imageFile;
+  final String name;
+  final List<String> members;
+}
+
+class CreateGroupUseCase {
+  CreateGroupUseCase(
+    this._streamApiRepository,
+    this._uploadStorageRepository,
+  );
+
+  final UploadStorageRepository _uploadStorageRepository;
+  final StreamApiRepository _streamApiRepository;
+
+  Future<Channel> createGroup(CreateGroupInput input) async {
+    final channelId = Uuid().v4();
+    String image;
+    if (input.imageFile != null) {
+      image = await _uploadStorageRepository.uploadPhoto(input.imageFile, 'channels/$channelId');
+    }
+    final channel = await _streamApiRepository.createGroupChat(
+      channelId,
+      input.name,
+      input.members,
+      image: image,
+    );
+    return channel;
+  }
+}
@@ -0,0 +1,30 @@
+import 'package:stream_chatter/data/auth_repository.dart';
+import 'package:stream_chatter/data/stream_api_repository.dart';
+import 'package:stream_chatter/domain/exceptions/auth_exception.dart';
+import 'package:stream_chatter/domain/models/auth_user.dart';
+
+class LoginUseCase {
+  LoginUseCase(this.authRepository, this.streamApiRepository);
+
+  final AuthRepository authRepository;
+  final StreamApiRepository streamApiRepository;
+
+  Future<bool> validateLogin() async {
+    print('validateLogin');
+    final user = await authRepository.getAuthUser();
+    print('user: ${user?.id}');
+    if (user != null) {
+      final result = await streamApiRepository.connectIfExist(user.id);
+      if (result) {
+        return true;
+      } else {
+        throw AuthException(AuthErrorCode.not_chat_user);
+      }
+    }
+    throw AuthException(AuthErrorCode.not_auth);
+  }
+
+  Future<AuthUser> signIn() async {
+    return await authRepository.signIn();
+  }
+}
@@ -0,0 +1,13 @@
+import 'package:stream_chatter/data/auth_repository.dart';
+import 'package:stream_chatter/data/stream_api_repository.dart';
+
+class LogoutUseCase {
+  LogoutUseCase(this.streamApiRepository, this.authRepository);
+  final StreamApiRepository streamApiRepository;
+  final AuthRepository authRepository;
+
+  Future<void> logout() async {
+    await streamApiRepository.logout();
+    await authRepository.logout();
+  }
+}
@@ -0,0 +1,34 @@
+import 'dart:io';
+
+import 'package:stream_chatter/data/auth_repository.dart';
+import 'package:stream_chatter/data/stream_api_repository.dart';
+import 'package:stream_chatter/data/upload_storage_repository.dart';
+import 'package:stream_chatter/domain/models/chat_user.dart';
+
+class ProfileInput {
+  ProfileInput({this.imageFile, this.name});
+  final File imageFile;
+  final String name;
+}
+
+class ProfileSignInUseCase {
+  ProfileSignInUseCase(
+    this._authRepository,
+    this._streamApiRepository,
+    this._uploadStorageRepository,
+  );
+
+  final AuthRepository _authRepository;
+  final UploadStorageRepository _uploadStorageRepository;
+  final StreamApiRepository _streamApiRepository;
+
+  Future<void> verify(ProfileInput input) async {
+    final auth = await _authRepository.getAuthUser();
+    final token = await _streamApiRepository.getToken(auth.id);
+    String image;
+    if (input.imageFile != null) {
+      image = await _uploadStorageRepository.uploadPhoto(input.imageFile, 'users/${auth.id}');
+    }
+    await _streamApiRepository.connectUser(ChatUser(name: input.name, id: auth.id, image: image), token);
+  }
+}
@@ -0,0 +1,50 @@
+import 'package:firebase_core/firebase_core.dart';
+import 'package:stream_chatter/dependencies.dart';
+import 'package:stream_chatter/ui/app_theme_cubit.dart';
+import 'package:stream_chatter/ui/splash/splash_view.dart';
+import 'package:stream_chatter/ui/themes.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+Future<void> main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  await Firebase.initializeApp();
+  runApp(MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  final _streamChatClient = StreamChatClient('c2rynysx9x6b');
+
+  @override
+  Widget build(BuildContext context) {
+    SystemChrome.setEnabledSystemUIOverlays([SystemUiOverlay.bottom]);
+
+    return MultiRepositoryProvider(
+      providers: buildRepositories(_streamChatClient),
+      child: BlocProvider(
+        create: (context) => AppThemeCubit(context.read())..init(),
+        child: BlocBuilder<AppThemeCubit, bool>(builder: (context, snapshot) {
+          return MaterialApp(
+            title: 'Stream Chatty',
+            home: SplashView(),
+            theme: snapshot ? Themes.themeDark : Themes.themeLight,
+            builder: (context, child) {
+              return StreamChat(
+                child: child,
+                client: _streamChatClient,
+                streamChatThemeData: StreamChatThemeData.fromTheme(Theme.of(context)).copyWith(
+                  ownMessageTheme: MessageTheme(
+                    messageBackgroundColor: Theme.of(context).accentColor,
+                    messageText: TextStyle(color: Colors.white),
+                  ),
+                ),
+              );
+            },
+          );
+        }),
+      ),
+    );
+  }
+}
@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+
+Future pushToPage(BuildContext context, Widget widget) async {
+  await Navigator.of(context).push(
+    MaterialPageRoute(
+      builder: (_) => widget,
+    ),
+  );
+}
+
+Future pushAndReplaceToPage(BuildContext context, Widget widget) async {
+  await Navigator.of(context).pushReplacement(
+    MaterialPageRoute(
+      builder: (_) => widget,
+    ),
+  );
+}
+
+Future popAllAndPush(BuildContext context, Widget widget) async {
+  await Navigator.pushAndRemoveUntil(
+      context, MaterialPageRoute(builder: (BuildContext context) => widget), ModalRoute.withName('/'));
+}
@@ -0,0 +1,21 @@
+import 'package:stream_chatter/data/persistent_storage_repository.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+class AppThemeCubit extends Cubit<bool> {
+  AppThemeCubit(this._persistentStorageRepository) : super(false);
+  final PersistentStorageRepository _persistentStorageRepository;
+
+  bool _isDark = false;
+  bool get isDark => _isDark;
+
+  Future<void> init() async {
+    _isDark = await _persistentStorageRepository.isDarkMode();
+    emit(_isDark);
+  }
+
+  Future<void> updateTheme(bool isDarkMode) async {
+    _isDark = isDarkMode;
+    await _persistentStorageRepository.updateDarkMode(isDarkMode);
+    emit(_isDark);
+  }
+}
@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+
+class AvatarImageView extends StatelessWidget {
+  const AvatarImageView({Key key, this.onTap, this.child}) : super(key: key);
+  final Widget child;
+  final VoidCallback onTap;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(20.0),
+      child: Stack(
+        clipBehavior: Clip.none,
+        children: [
+          ClipOval(
+            child: Container(
+              decoration: BoxDecoration(
+                shape: BoxShape.circle,
+                color: Colors.grey[100],
+              ),
+              height: 180,
+              width: 180,
+              child: child,
+            ),
+          ),
+          Positioned(
+            bottom: -15,
+            right: 0,
+            child: GestureDetector(
+              onTap: onTap,
+              child: CircleAvatar(
+                backgroundColor: Colors.white,
+                radius: 30,
+                child: Icon(
+                  Icons.camera_alt_outlined,
+                  color: Colors.black,
+                ),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+
+class InitialBackgroundView extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Stack(
+      children: [
+        Positioned(
+          top: 20,
+          right: -75,
+          child: Image.asset(
+            'assets/icon-top-right.png',
+            height: 150,
+          ),
+        ),
+        Positioned(
+          bottom: -50,
+          right: -50,
+          child: Image.asset(
+            'assets/icon-bottom-right.png',
+            height: 200,
+          ),
+        ),
+      ],
+    );
+  }
+}
@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+
+class LoadingView extends StatelessWidget {
+  final bool isLoading;
+  final Widget child;
+
+  const LoadingView({
+    Key key,
+    @required this.child,
+    this.isLoading = false,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Stack(
+        children: [
+          child,
+          if (isLoading)
+            Container(
+              color: Colors.black26,
+              child: Center(
+                child: CircularProgressIndicator(),
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+}
@@ -0,0 +1,326 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+import 'package:jiffy/jiffy.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
+
+/*Navigator.push(
+            context,
+            MaterialPageRoute(
+              builder: (context) {
+                return StreamChannel(
+                  child: widget.channelWidget,
+                  channel: client,
+                );
+              },
+            ),
+          );
+ */
+
+/// ![screenshot](https://raw.githubusercontent.com/GetStream/stream-chat-flutter/master/screenshots/channel_preview.png)
+/// ![screenshot](https://raw.githubusercontent.com/GetStream/stream-chat-flutter/master/screenshots/channel_preview_paint.png)
+///
+/// It shows the current [Channel] preview.
+///
+/// The widget uses a [StreamBuilder] to render the channel information image as soon as it updates.
+///
+/// Usually you don't use this widget as it's the default channel preview used by [ChannelListView].
+///
+/// The widget renders the ui based on the first ancestor of type [StreamChatTheme].
+/// Modify it to change the widget appearance.
+class MyChannelPreview extends StatelessWidget {
+  /// Function called when tapping this widget
+  final void Function(Channel) onTap;
+
+  /// Function called when long pressing this widget
+  final void Function(Channel) onLongPress;
+
+  /// Channel displayed
+  final Channel channel;
+
+  /// The function called when the image is tapped
+  final VoidCallback onImageTap;
+
+  final String heroTag;
+
+  MyChannelPreview({
+    @required this.channel,
+    Key key,
+    this.onTap,
+    this.onLongPress,
+    this.onImageTap,
+    this.heroTag,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return StreamBuilder<bool>(
+        stream: channel.isMutedStream,
+        initialData: channel.isMuted,
+        builder: (context, snapshot) {
+          return Opacity(
+            opacity: snapshot.data ? 0.5 : 1,
+            child: ListTile(
+              contentPadding: const EdgeInsets.symmetric(
+                horizontal: 8,
+              ),
+              onTap: () {
+                if (onTap != null) {
+                  onTap(channel);
+                }
+              },
+              onLongPress: () {
+                if (onLongPress != null) {
+                  onLongPress(channel);
+                }
+              },
+              leading: Material(
+                child: Hero(
+                  tag: heroTag,
+                  child: StreamChannel(
+                    channel: channel,
+                    child: ChannelImage(
+                      onTap: onImageTap,
+                    ),
+                  ),
+                ),
+              ),
+              title: Row(
+                mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                children: <Widget>[
+                  Flexible(
+                    child: ChannelName(
+                      textStyle: StreamChatTheme.of(context).channelPreviewTheme.title,
+                    ),
+                  ),
+                  StreamBuilder<List<Member>>(
+                      stream: channel.state.membersStream,
+                      initialData: channel.state.members,
+                      builder: (context, snapshot) {
+                        if (!snapshot.hasData ||
+                            snapshot.data.isEmpty ||
+                            !snapshot.data.any((Member e) => e.user.id == channel.client.state.user.id)) {
+                          return SizedBox();
+                        }
+                        return ChannelUnreadIndicator(
+                          channel: channel,
+                        );
+                      }),
+                ],
+              ),
+              subtitle: Row(
+                mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                children: <Widget>[
+                  Flexible(child: _buildSubtitle(context)),
+                  Builder(
+                    builder: (context) {
+                      final lastMessage = channel.state.messages.lastWhere(
+                        (m) => !m.isDeleted && m.shadowed != true,
+                        orElse: () => null,
+                      );
+                      if (lastMessage?.user?.id == StreamChat.of(context).user.id) {
+                        return Padding(
+                          padding: const EdgeInsets.only(right: 4.0),
+                          child: SendingIndicator(
+                            message: lastMessage,
+                            size: StreamChatTheme.of(context).channelPreviewTheme.indicatorIconSize,
+                            isMessageRead: channel.state.read
+                                    ?.where((element) => element.user.id != channel.client.state.user.id)
+                                    ?.where((element) => element.lastRead.isAfter(lastMessage.createdAt))
+                                    ?.isNotEmpty ==
+                                true,
+                          ),
+                        );
+                      }
+                      return SizedBox();
+                    },
+                  ),
+                  _buildDate(context),
+                ],
+              ),
+            ),
+          );
+        });
+  }
+
+  Widget _buildDate(BuildContext context) {
+    return StreamBuilder<DateTime>(
+      stream: channel.lastMessageAtStream,
+      initialData: channel.lastMessageAt,
+      builder: (context, snapshot) {
+        if (!snapshot.hasData) {
+          return SizedBox();
+        }
+        final lastMessageAt = snapshot.data.toLocal();
+
+        String stringDate;
+        final now = DateTime.now();
+
+        var startOfDay = DateTime(now.year, now.month, now.day);
+
+        if (lastMessageAt.millisecondsSinceEpoch >= startOfDay.millisecondsSinceEpoch) {
+          stringDate = Jiffy(lastMessageAt.toLocal()).format('HH:mm');
+        } else if (lastMessageAt.millisecondsSinceEpoch >=
+            startOfDay.subtract(Duration(days: 1)).millisecondsSinceEpoch) {
+          stringDate = 'Yesterday';
+        } else if (startOfDay.difference(lastMessageAt).inDays < 7) {
+          stringDate = Jiffy(lastMessageAt.toLocal()).EEEE;
+        } else {
+          stringDate = Jiffy(lastMessageAt.toLocal()).format('dd/MM/yyyy');
+        }
+
+        return Text(
+          stringDate,
+          style: StreamChatTheme.of(context).channelPreviewTheme.lastMessageAt,
+        );
+      },
+    );
+  }
+
+  Widget _buildSubtitle(BuildContext context) {
+    if (channel.isMuted) {
+      return Row(
+        crossAxisAlignment: CrossAxisAlignment.end,
+        children: <Widget>[
+          StreamSvgIcon.mute(
+            size: 16,
+          ),
+          Text(
+            '  Channel is muted',
+            style: StreamChatTheme.of(context).channelPreviewTheme.subtitle.copyWith(
+                  color: StreamChatTheme.of(context).channelPreviewTheme.subtitle.color,
+                ),
+          ),
+        ],
+      );
+    }
+    return TypingIndicator(
+      channel: channel,
+      alternativeWidget: _buildLastMessage(context),
+      style: StreamChatTheme.of(context).channelPreviewTheme.subtitle.copyWith(
+            color: StreamChatTheme.of(context).channelPreviewTheme.subtitle.color,
+          ),
+    );
+  }
+
+  Widget _buildLastMessage(BuildContext context) {
+    return StreamBuilder<List<Message>>(
+      stream: channel.state.messagesStream,
+      initialData: channel.state.messages,
+      builder: (context, snapshot) {
+        final lastMessage = snapshot.data?.lastWhere((m) => m.shadowed != true && !m.isDeleted, orElse: () => null);
+        if (lastMessage == null) {
+          return SizedBox();
+        }
+
+        var text = lastMessage.text;
+        if (lastMessage.attachments != null) {
+          final parts = <String>[
+            ...lastMessage.attachments.map((e) {
+              if (e.type == 'image') {
+                return '📷';
+              } else if (e.type == 'video') {
+                return '🎬';
+              } else if (e.type == 'giphy') {
+                return '[GIF]';
+              }
+              return e == lastMessage.attachments.last ? (e.title ?? 'File') : '${e.title ?? 'File'} , ';
+            }).where((e) => e != null),
+            lastMessage.text ?? '',
+          ];
+
+          text = parts.join(' ');
+        }
+
+        return Text.rich(
+          _getDisplayText(
+            text,
+            lastMessage.mentionedUsers,
+            lastMessage.attachments,
+            StreamChatTheme.of(context).channelPreviewTheme.subtitle.copyWith(
+                color: StreamChatTheme.of(context).channelPreviewTheme.subtitle.color,
+                fontStyle: (lastMessage.isSystem || lastMessage.isDeleted) ? FontStyle.italic : FontStyle.normal),
+            StreamChatTheme.of(context).channelPreviewTheme.subtitle.copyWith(
+                color: StreamChatTheme.of(context).channelPreviewTheme.subtitle.color,
+                fontStyle: (lastMessage.isSystem || lastMessage.isDeleted) ? FontStyle.italic : FontStyle.normal,
+                fontWeight: FontWeight.bold),
+          ),
+          maxLines: 1,
+          overflow: TextOverflow.ellipsis,
+        );
+      },
+    );
+  }
+
+  TextSpan _getDisplayText(String text, List<User> mentions, List<Attachment> attachments, TextStyle normalTextStyle,
+      TextStyle mentionsTextStyle) {
+    var textList = text.split(' ');
+    var resList = <TextSpan>[];
+    for (var e in textList) {
+      if (mentions != null && mentions.isNotEmpty && mentions.any((element) => '@${element.name}' == e)) {
+        resList.add(TextSpan(
+          text: '$e ',
+          style: mentionsTextStyle,
+        ));
+      } else if (attachments != null &&
+          attachments.isNotEmpty &&
+          attachments.where((e) => e.title != null).any((element) => element.title == e)) {
+        resList.add(TextSpan(
+          text: '$e ',
+          style: normalTextStyle.copyWith(fontStyle: FontStyle.italic),
+        ));
+      } else {
+        resList.add(TextSpan(
+          text: e == textList.last ? '$e' : '$e ',
+          style: normalTextStyle,
+        ));
+      }
+    }
+
+    return TextSpan(children: resList);
+  }
+}
+
+class ChannelUnreadIndicator extends StatelessWidget {
+  const ChannelUnreadIndicator({
+    Key key,
+    @required this.channel,
+  }) : super(key: key);
+
+  final Channel channel;
+
+  @override
+  Widget build(BuildContext context) {
+    return StreamBuilder<int>(
+      stream: channel.state.unreadCountStream,
+      initialData: channel.state.unreadCount,
+      builder: (context, snapshot) {
+        if (!snapshot.hasData || snapshot.data == 0) {
+          return SizedBox();
+        }
+
+        return Material(
+          borderRadius: BorderRadius.circular(8),
+          color: StreamChatTheme.of(context).channelPreviewTheme.unreadCounterColor,
+          child: Padding(
+            padding: const EdgeInsets.only(
+              left: 5.0,
+              right: 5.0,
+              top: 2,
+              bottom: 1,
+            ),
+            child: Center(
+              child: Text(
+                '${snapshot.data > 99 ? '99+' : snapshot.data}',
+                style: TextStyle(
+                  fontSize: 11,
+                  color: Colors.white,
+                ),
+              ),
+            ),
+          ),
+        );
+      },
+    );
+  }
+}
@@ -0,0 +1,160 @@
+import 'package:stream_chatter/ui/common/my_channel_preview.dart';
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class ChatView extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    final textColor = Theme.of(context).appBarTheme.color;
+    return Scaffold(
+      backgroundColor: Theme.of(context).canvasColor,
+      appBar: AppBar(
+        title: Text(
+          'Chats',
+          style: TextStyle(
+            fontSize: 24,
+            color: textColor,
+            fontWeight: FontWeight.w800,
+          ),
+        ),
+        centerTitle: false,
+        elevation: 0,
+        backgroundColor: Theme.of(context).canvasColor,
+      ),
+      body: ChannelsBloc(
+        child: ChannelListView(
+          filter: {
+            'members': {
+              '\$in': [StreamChat.of(context).user?.id],
+            }
+          },
+          sort: [SortOption('last_message_at')],
+          channelPreviewBuilder: (context, channel) {
+            return Container(
+              color: Theme.of(context).canvasColor,
+              child: MyChannelPreview(
+                channel: channel,
+                heroTag: channel.id,
+                onImageTap: () {
+                  String name;
+                  String image;
+                  final currentUser = StreamChat.of(context).client.state.user;
+                  if (channel.isGroup) {
+                    name = channel.extraData['name'];
+                    image = channel.extraData['image'];
+                  } else {
+                    final friend =
+                        channel.state.members.where((element) => element.userId != currentUser.id).first.user;
+                    name = friend.name;
+                    image = friend.extraData['image'];
+                  }
+
+                  return Navigator.of(context).push(
+                    PageRouteBuilder(
+                        barrierColor: Colors.black45,
+                        barrierDismissible: true,
+                        opaque: false,
+                        pageBuilder: (context, animation1, _) {
+                          return FadeTransition(
+                            opacity: animation1,
+                            child: ChatDetailView(
+                              channelId: channel.id,
+                              image: image,
+                              name: name,
+                            ),
+                          );
+                        }),
+                  );
+                },
+                onTap: (channel) => {
+                  Navigator.push(
+                    context,
+                    MaterialPageRoute(
+                      builder: (context) {
+                        return StreamChannel(
+                          child: ChannelPage(),
+                          channel: channel,
+                        );
+                      },
+                    ),
+                  )
+                },
+              ),
+            );
+          },
+          channelWidget: ChannelPage(),
+        ),
+      ),
+    );
+  }
+}
+
+class ChannelPage extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: ChannelHeader(),
+      body: Column(
+        children: [
+          Expanded(
+            child: MessageListView(),
+          ),
+          MessageInput(),
+        ],
+      ),
+    );
+  }
+}
+
+class ChatDetailView extends StatelessWidget {
+  const ChatDetailView({
+    Key key,
+    this.image,
+    this.name,
+    this.channelId,
+  }) : super(key: key);
+
+  final String image;
+  final String name;
+  final String channelId;
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: Navigator.of(context).pop,
+      child: Material(
+        color: Colors.transparent,
+        child: Dialog(
+          backgroundColor: Colors.transparent,
+          elevation: 0,
+          child: Padding(
+            padding: const EdgeInsets.all(20.0),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                Hero(
+                  tag: channelId,
+                  child: ClipOval(
+                    child: Image.network(
+                      image,
+                      height: 180,
+                      width: 180,
+                      fit: BoxFit.cover,
+                    ),
+                  ),
+                ),
+                Text(
+                  name,
+                  style: TextStyle(
+                    fontWeight: FontWeight.w700,
+                    fontSize: 22,
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}
@@ -0,0 +1,38 @@
+import 'package:stream_chatter/data/stream_api_repository.dart';
+import 'package:stream_chatter/domain/models/chat_user.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class ChatUserState {
+  const ChatUserState(this.chatUser, {this.selected = false});
+  final ChatUser chatUser;
+  final bool selected;
+}
+
+class FriendsSelectionCubit extends Cubit<List<ChatUserState>> {
+  FriendsSelectionCubit(this._streamApiRepository) : super([]);
+  final StreamApiRepository _streamApiRepository;
+
+  List<ChatUserState> get selectedUsers => state.where((element) => element.selected).toList();
+
+  Future<void> init() async {
+    final chatUsers = (await _streamApiRepository.getChatUsers()).map((e) => ChatUserState(e)).toList();
+    emit(chatUsers);
+  }
+
+  void selectUser(ChatUserState chatUser) {
+    final index = state.indexWhere((element) => element.chatUser.id == chatUser.chatUser.id);
+    state[index] = ChatUserState(state[index].chatUser, selected: !chatUser.selected);
+    emit(List<ChatUserState>.from(state));
+  }
+
+  Future<Channel> createFriendChannel(ChatUserState chatUserState) async {
+    return await _streamApiRepository.createSimpleChat(chatUserState.chatUser.id);
+  }
+}
+
+class FriendsGroupCubit extends Cubit<bool> {
+  FriendsGroupCubit() : super(false);
+
+  void changeToGroup() => emit(!state);
+}
@@ -0,0 +1,190 @@
+import 'package:stream_chatter/navigator_utils.dart';
+import 'package:stream_chatter/ui/home/chat/chat_view.dart';
+import 'package:stream_chatter/ui/home/chat/selection/friends_selection_cubit.dart';
+import 'package:stream_chatter/ui/home/chat/selection/group_selection_view.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class FriendsSelectionView extends StatelessWidget {
+  void _createFriendChannel(BuildContext context, ChatUserState chatUserState) async {
+    final channel = await context.read<FriendsSelectionCubit>().createFriendChannel(chatUserState);
+    pushAndReplaceToPage(
+      context,
+      Scaffold(
+        body: StreamChannel(
+          channel: channel,
+          child: ChannelPage(),
+        ),
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final textColor = Theme.of(context).appBarTheme.color;
+    final accentColor = Theme.of(context).accentColor;
+    return MultiBlocProvider(
+      providers: [
+        BlocProvider(create: (context) => FriendsSelectionCubit(context.read())..init()),
+        BlocProvider(create: (_) => FriendsGroupCubit()),
+      ],
+      child: BlocBuilder<FriendsGroupCubit, bool>(builder: (context, isGroup) {
+        return BlocBuilder<FriendsSelectionCubit, List<ChatUserState>>(builder: (context, snapshot) {
+          final selectedUsers = context.read<FriendsSelectionCubit>().selectedUsers;
+
+          return Scaffold(
+            floatingActionButton: isGroup && selectedUsers.isNotEmpty
+                ? FloatingActionButton(
+                    child: Icon(Icons.arrow_right_alt_rounded),
+                    onPressed: () {
+                      pushAndReplaceToPage(context, GroupSelectionView(selectedUsers));
+                    })
+                : null,
+            backgroundColor: Theme.of(context).canvasColor,
+            body: Padding(
+              padding: const EdgeInsets.symmetric(
+                horizontal: 10.0,
+                vertical: 20,
+              ),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  if (isGroup)
+                    Row(
+                      children: [
+                        BackButton(
+                          onPressed: () {
+                            context.read<FriendsGroupCubit>().changeToGroup();
+                          },
+                        ),
+                        Text(
+                          'New Group',
+                          style: TextStyle(
+                            fontSize: 24,
+                            color: textColor,
+                            fontWeight: FontWeight.w800,
+                          ),
+                        ),
+                      ],
+                    )
+                  else
+                    Row(
+                      children: [
+                        BackButton(
+                          onPressed: Navigator.of(context).pop,
+                        ),
+                        Text(
+                          'People',
+                          style: TextStyle(
+                            fontSize: 24,
+                            color: textColor,
+                            fontWeight: FontWeight.w800,
+                          ),
+                        ),
+                      ],
+                    ),
+                  if (!isGroup)
+                    ListTile(
+                      onTap: context.read<FriendsGroupCubit>().changeToGroup,
+                      leading: CircleAvatar(
+                        backgroundColor: accentColor,
+                        child: Icon(Icons.group_outlined),
+                      ),
+                      title: Text('Create group', style: TextStyle(fontWeight: FontWeight.w700)),
+                      subtitle: Text('Talk with 2 or more contacts'),
+                    )
+                  else if (isGroup && selectedUsers.isEmpty)
+                    Padding(
+                      padding: const EdgeInsets.only(top: 15.0, left: 20.0, bottom: 20),
+                      child: Column(
+                        mainAxisSize: MainAxisSize.min,
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          CircleAvatar(
+                            backgroundColor: Colors.grey[200],
+                          ),
+                          Text(
+                            'Add a friend',
+                            style: TextStyle(
+                              fontSize: 12,
+                              color: Colors.grey[500],
+                            ),
+                          ),
+                        ],
+                      ),
+                    )
+                  else
+                    SizedBox(
+                        height: 100,
+                        child: ListView.builder(
+                            scrollDirection: Axis.horizontal,
+                            itemCount: selectedUsers.length,
+                            itemBuilder: (context, index) {
+                              final chatUserState = selectedUsers[index];
+                              return Padding(
+                                padding: const EdgeInsets.symmetric(horizontal: 13.0),
+                                child: Stack(
+                                  clipBehavior: Clip.none,
+                                  children: [
+                                    Column(
+                                      mainAxisSize: MainAxisSize.min,
+                                      children: [
+                                        CircleAvatar(
+                                          radius: 30,
+                                          backgroundImage: NetworkImage(chatUserState.chatUser.image),
+                                        ),
+                                        Text(chatUserState.chatUser.name),
+                                      ],
+                                    ),
+                                    Positioned(
+                                      bottom: 40,
+                                      right: -4,
+                                      child: InkWell(
+                                        onTap: () => context.read<FriendsSelectionCubit>().selectUser(chatUserState),
+                                        child: CircleAvatar(
+                                          radius: 9,
+                                          backgroundColor: accentColor,
+                                          child: Icon(Icons.close_rounded, size: 12),
+                                        ),
+                                      ),
+                                    ),
+                                  ],
+                                ),
+                              );
+                            })),
+                  Expanded(
+                    child: ListView.builder(
+                      itemCount: snapshot.length,
+                      itemBuilder: (context, index) {
+                        final chatUserState = snapshot[index];
+                        return ListTile(
+                          onTap: () {
+                            _createFriendChannel(context, chatUserState);
+                          },
+                          leading: CircleAvatar(
+                            backgroundImage: NetworkImage(chatUserState.chatUser.image),
+                          ),
+                          title: Text(chatUserState.chatUser.name),
+                          trailing: isGroup
+                              ? Checkbox(
+                                  value: chatUserState.selected,
+                                  onChanged: (val) {
+                                    print('select user for group');
+                                    context.read<FriendsSelectionCubit>().selectUser(chatUserState);
+                                  },
+                                )
+                              : null,
+                        );
+                      },
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          );
+        });
+      }),
+    );
+  }
+}
@@ -0,0 +1,47 @@
+import 'dart:io';
+
+import 'package:stream_chatter/data/image_picker_repository.dart';
+import 'package:stream_chatter/domain/usecases/create_group_usecase.dart';
+import 'package:stream_chatter/ui/home/chat/selection/friends_selection_cubit.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class GroupSelectionState {
+  const GroupSelectionState(
+    this.file, {
+    this.channel,
+    this.isLoading = false,
+  });
+  final File file;
+  final Channel channel;
+  final bool isLoading;
+}
+
+class GroupSelectionCubit extends Cubit<GroupSelectionState> {
+  GroupSelectionCubit(
+    this.members,
+    this._createGroupUseCase,
+    this._imagePickerRepository,
+  ) : super(GroupSelectionState(null));
+
+  final nameTextController = TextEditingController();
+  final List<ChatUserState> members;
+  final CreateGroupUseCase _createGroupUseCase;
+  final ImagePickerRepository _imagePickerRepository;
+
+  void createGroup() async {
+    emit(GroupSelectionState(state.file, isLoading: true));
+    final channel = await _createGroupUseCase.createGroup(CreateGroupInput(
+      imageFile: state.file,
+      members: members.map((e) => e.chatUser.id).toList(),
+      name: nameTextController.text,
+    ));
+    emit(GroupSelectionState(state.file, channel: channel, isLoading: false));
+  }
+
+  void pickImage() async {
+    final image = await _imagePickerRepository.pickImage();
+    emit(GroupSelectionState(image));
+  }
+}
@@ -0,0 +1,117 @@
+import 'package:stream_chatter/navigator_utils.dart';
+import 'package:stream_chatter/ui/common/avatar_image_view.dart';
+import 'package:stream_chatter/ui/common/loading_view.dart';
+import 'package:stream_chatter/ui/home/chat/chat_view.dart';
+import 'package:stream_chatter/ui/home/chat/selection/friends_selection_cubit.dart';
+import 'package:stream_chatter/ui/home/chat/selection/group_selection_cubit.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class GroupSelectionView extends StatelessWidget {
+  GroupSelectionView(this.selectedUsers);
+
+  final List<ChatUserState> selectedUsers;
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocProvider(
+      create: (context) => GroupSelectionCubit(
+        selectedUsers,
+        context.read(),
+        context.read(),
+      ),
+      child: BlocConsumer<GroupSelectionCubit, GroupSelectionState>(listener: (context, snapshot) {
+        if (snapshot.channel != null) {
+          pushAndReplaceToPage(
+            context,
+            Scaffold(
+              body: StreamChannel(
+                channel: snapshot.channel,
+                child: ChannelPage(),
+              ),
+            ),
+          );
+        }
+      }, builder: (context, snapshot) {
+        return LoadingView(
+          isLoading: snapshot.isLoading,
+          child: Scaffold(
+            floatingActionButton: FloatingActionButton(
+              child: Icon(Icons.arrow_right_alt_rounded),
+              onPressed: context.read<GroupSelectionCubit>().createGroup,
+            ),
+            backgroundColor: Theme.of(context).canvasColor,
+            appBar: AppBar(
+              title: Text(
+                'New Group',
+                style: TextStyle(
+                  fontSize: 24,
+                  color: Theme.of(context).appBarTheme.color,
+                  fontWeight: FontWeight.w800,
+                ),
+              ),
+              centerTitle: false,
+              elevation: 0,
+              backgroundColor: Theme.of(context).canvasColor,
+            ),
+            body: Column(
+              children: [
+                AvatarImageView(
+                  onTap: context.read<GroupSelectionCubit>().pickImage,
+                  child: snapshot?.file != null
+                      ? Image.file(
+                          snapshot?.file,
+                          fit: BoxFit.cover,
+                        )
+                      : Icon(
+                          Icons.person_outline,
+                          size: 100,
+                          color: Colors.grey[400],
+                        ),
+                ),
+                Padding(
+                  padding: const EdgeInsets.symmetric(
+                    horizontal: 50.0,
+                    vertical: 20,
+                  ),
+                  child: TextField(
+                    controller: context.read<GroupSelectionCubit>().nameTextController,
+                    decoration: InputDecoration(
+                      fillColor: Theme.of(context).bottomNavigationBarTheme.backgroundColor,
+                      hintText: 'Name of the group',
+                      hintStyle: TextStyle(
+                        fontSize: 13,
+                        color: Colors.grey[400],
+                      ),
+                      border: InputBorder.none,
+                      enabledBorder: InputBorder.none,
+                    ),
+                  ),
+                ),
+                Wrap(
+                  children: List.generate(selectedUsers.length, (index) {
+                    final chatUserState = selectedUsers[index];
+                    return Padding(
+                      padding: const EdgeInsets.symmetric(horizontal: 10.0),
+                      child: Column(
+                        mainAxisSize: MainAxisSize.min,
+                        children: [
+                          CircleAvatar(
+                            radius: 30,
+                            backgroundImage: NetworkImage(chatUserState.chatUser.image),
+                          ),
+                          Text(chatUserState.chatUser.name),
+                        ],
+                      ),
+                    );
+                  }),
+                ),
+              ],
+            ),
+          ),
+        );
+      }),
+    );
+  }
+}
@@ -0,0 +1,7 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+class HomeCubit extends Cubit<int> {
+  HomeCubit() : super(0);
+
+  void onChangeTab(int index) => emit(index);
+}
--- a/Show More
+++ b/Show More