WIP: Implements the Login functionality

- Adds multiple android dependencies, for DI and some utilities
- Updates colors and styles
- Adds an Application
- Adds the Login Fragment and ViewModel

10 files changed, 297 insertions, 6 deletions

diff --git a/androidApp/build.gradle.kts b/androidApp/build.gradle.kts
index ccbc6c8..669b5cb 100644
--- a/androidApp/build.gradle.kts
+++ b/androidApp/build.gradle.kts
@@ -17,6 +17,9 @@ android {
             isMinifyEnabled = false
         }
     }
+    buildFeatures {
+        viewBinding = true
+    }
 }
 
 dependencies {
@@ -25,5 +28,10 @@ dependencies {
     implementation("androidx.appcompat:appcompat:1.4.0")
     implementation("androidx.constraintlayout:constraintlayout:2.1.2")
     implementation("com.squareup.okhttp3:okhttp:3.14.2")
+    implementation("com.github.Zhuinden:live-event:1.2.0")
+    implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0")
+    implementation("androidx.lifecycle:lifecycle-viewmodel-savedstate:2.4.0")
+    implementation("io.insert-koin:koin-android:3.1.4")
+    implementation("androidx.core:core-ktx:1.7.0")
     implementation(group = "", name = "WhirlyGlobeMaply", ext = "aar")
 }
\ No newline at end of file
diff --git a/androidApp/src/main/AndroidManifest.xml b/androidApp/src/main/AndroidManifest.xml
index 3d1df5c..142700c 100644
--- a/androidApp/src/main/AndroidManifest.xml
+++ b/androidApp/src/main/AndroidManifest.xml
@@ -7,9 +7,10 @@
         android:allowBackup="false"
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/ic_launcher"
+        android:name=".TrackerApp">
         <activity
-            android:name=".MainActivity"
+            android:name=".session.LoginActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
diff --git a/androidApp/src/main/java/mx/trackermap/TrackerMap/android/TrackerApp.kt b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/TrackerApp.kt
new file mode 100644
index 0000000..a8efbf2
--- /dev/null
+++ b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/TrackerApp.kt
@@ -0,0 +1,30 @@
+package mx.trackermap.TrackerMap.android
+
+import android.app.Application
+import mx.trackermap.TrackerMap.android.session.LoginViewModel
+import mx.trackermap.TrackerMap.client.apis.SessionApi
+import org.koin.android.ext.koin.androidContext
+import org.koin.android.ext.koin.androidLogger
+import org.koin.androidx.viewmodel.dsl.viewModel
+import org.koin.core.context.startKoin
+import org.koin.core.logger.Level
+import org.koin.dsl.module
+
+class TrackerApp: Application() {
+    override fun onCreate() {
+        super.onCreate()
+
+        val appModule = module {
+            single { "https://etbsa.net/api/" }
+            single { SessionApi(get()) }
+
+            viewModel { LoginViewModel(get(), get()) }
+        }
+
+        startKoin {
+            androidLogger(Level.ERROR)
+            androidContext(this@TrackerApp)
+            modules(appModule)
+        }
+    }
+}
\ No newline at end of file
diff --git a/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginActivity.kt b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginActivity.kt
new file mode 100644
index 0000000..3aec7b8
--- /dev/null
+++ b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginActivity.kt
@@ -0,0 +1,14 @@
+package mx.trackermap.TrackerMap.android.session
+
+import android.os.Bundle
+import android.os.PersistableBundle
+import android.util.Log
+import androidx.appcompat.app.AppCompatActivity
+import mx.trackermap.TrackerMap.android.R
+
+class LoginActivity: AppCompatActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.login_activity)
+    }
+}
\ No newline at end of file
diff --git a/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginFragment.kt b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginFragment.kt
new file mode 100644
index 0000000..5039a7c
--- /dev/null
+++ b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginFragment.kt
@@ -0,0 +1,76 @@
+package mx.trackermap.TrackerMap.android.session
+
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Toast
+import androidx.core.widget.doAfterTextChanged
+import androidx.fragment.app.Fragment
+import com.zhuinden.liveevent.observe
+import mx.trackermap.TrackerMap.android.databinding.LoginBinding
+import org.koin.androidx.viewmodel.ext.android.viewModel
+
+class LoginFragment : Fragment() {
+
+    private var _binding: LoginBinding? = null
+    private val binding get() = _binding!!
+    private val loginViewModel: LoginViewModel by viewModel()
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        _binding = LoginBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        setupEvents()
+        setupObservers()
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
+    private fun setupEvents() {
+        binding.usernameEditText.doAfterTextChanged {
+            loginViewModel.email.value = it.toString()
+        }
+        binding.passwordEditText.doAfterTextChanged {
+            loginViewModel.password.value = it.toString()
+        }
+        binding.signinButton.setOnClickListener {
+            loginViewModel.login()
+        }
+    }
+
+    private fun setupObservers() {
+        loginViewModel.loginResult.observe(this) { result ->
+            Log.d("LoginFragment", result.toString())
+            when (result) {
+                LoginViewModel.LoginResult.Loading -> {
+                    Toast.makeText(context, "Loading...", Toast.LENGTH_SHORT).show()
+                }
+                LoginViewModel.LoginResult.EmailMissing -> {
+                    Toast.makeText(context, "Email is missing", Toast.LENGTH_SHORT).show()
+                }
+                LoginViewModel.LoginResult.PasswordMissing -> {
+                    Toast.makeText(context, "Password is missing", Toast.LENGTH_SHORT).show()
+                }
+                LoginViewModel.LoginResult.Failure -> {
+                    Toast.makeText(context, "Failed login", Toast.LENGTH_SHORT).show()
+                }
+                LoginViewModel.LoginResult.Success -> {
+                    Toast.makeText(context, "Success", Toast.LENGTH_SHORT).show()
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginViewModel.kt b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginViewModel.kt
new file mode 100644
index 0000000..9df78aa
--- /dev/null
+++ b/androidApp/src/main/java/mx/trackermap/TrackerMap/android/session/LoginViewModel.kt
@@ -0,0 +1,57 @@
+package mx.trackermap.TrackerMap.android.session
+
+import android.util.Log
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.zhuinden.eventemitter.EventEmitter
+import com.zhuinden.eventemitter.EventSource
+import kotlinx.coroutines.launch
+import mx.trackermap.TrackerMap.client.apis.SessionApi
+
+class LoginViewModel(
+    private val sessionApi: SessionApi,
+    savedStateHandle: SavedStateHandle
+) : ViewModel() {
+
+    sealed class LoginResult {
+        object Loading: LoginResult()
+        object EmailMissing : LoginResult()
+        object PasswordMissing : LoginResult()
+        object Failure : LoginResult()
+        object Success : LoginResult()
+    }
+
+    val email: MutableLiveData<String> = savedStateHandle.getLiveData("user", "")
+    val password: MutableLiveData<String> = savedStateHandle.getLiveData("password", "")
+
+    private val loginResultEmitter = EventEmitter<LoginResult>()
+    val loginResult: EventSource<LoginResult> = loginResultEmitter
+
+    fun login() {
+        val email = email.value!!.toString().trim()
+        val password = password.value!!.toString().trim()
+
+        if (email.isEmpty()) {
+            loginResultEmitter.emit(LoginResult.EmailMissing)
+            return
+        }
+
+        if (password.isEmpty()) {
+            loginResultEmitter.emit(LoginResult.PasswordMissing)
+            return
+        }
+
+        loginResultEmitter.emit(LoginResult.Loading)
+        viewModelScope.launch {
+            try {
+                val user = sessionApi.sessionPost(email, password)
+                Log.d("LoginViewModel", user.toString())
+                loginResultEmitter.emit(LoginResult.Success)
+            } catch (e: Exception) {
+                loginResultEmitter.emit(LoginResult.Failure)
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/androidApp/src/main/res/layout/login.xml b/androidApp/src/main/res/layout/login.xml
new file mode 100644
index 0000000..0a5f07a
--- /dev/null
+++ b/androidApp/src/main/res/layout/login.xml
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.cardview.widget.CardView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:name="mx.trackermap.TrackerMap.android.session.LoginFragment"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    app:cardCornerRadius="20dp"
+    app:cardElevation="5dp"
+    app:cardUseCompatPadding="true">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingVertical="32dp"
+        android:paddingHorizontal="16dp">
+
+        <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/usernameInputLayout"
+            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Username"
+            app:layout_constraintBottom_toTopOf="@+id/passwordInputLayout"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent">
+
+            <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/usernameEditText"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:inputType="textEmailAddress"/>
+
+        </com.google.android.material.textfield.TextInputLayout>
+
+        <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/passwordInputLayout"
+            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Password"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/usernameInputLayout"
+            app:layout_constraintBottom_toTopOf="@id/signinButton"
+            android:layout_marginTop="24dp">
+
+            <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/passwordEditText"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:inputType="textPassword"/>
+
+        </com.google.android.material.textfield.TextInputLayout>
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/signinButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            app:layout_constraintWidth_percent="0.5"
+            app:layout_constraintTop_toBottomOf="@id/passwordInputLayout"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            android:layout_marginTop="40dp"
+            android:text="Log in"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</androidx.cardview.widget.CardView>
\ No newline at end of file
diff --git a/androidApp/src/main/res/layout/login_activity.xml b/androidApp/src/main/res/layout/login_activity.xml
new file mode 100644
index 0000000..f1df817
--- /dev/null
+++ b/androidApp/src/main/res/layout/login_activity.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <androidx.appcompat.widget.AppCompatImageView
+        android:id="@+id/bannerImage"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintWidth_percent="0.7"
+        app:layout_constraintDimensionRatio="1"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:srcCompat="@drawable/ic_launcher_foreground" />
+
+    <fragment
+        android:id="@+id/loginFragment"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:name="mx.trackermap.TrackerMap.android.session.LoginFragment"
+        app:layout_constraintTop_toBottomOf="@id/bannerImage"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginStart="16dp"
+        android:layout_marginEnd="16dp"
+        android:layout_marginBottom="16dp"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/androidApp/src/main/res/values/colors.xml b/androidApp/src/main/res/values/colors.xml
index 4faecfa..8fb5f28 100644
--- a/androidApp/src/main/res/values/colors.xml
+++ b/androidApp/src/main/res/values/colors.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#6200EE</color>
-    <color name="colorPrimaryDark">#3700B3</color>
-    <color name="colorAccent">#03DAC5</color>
+    <color name="colorPrimary">#656A74</color>
+    <color name="colorPrimaryDark">#43474E</color>
+    <color name="colorAccent">#EB473E</color>
 </resources>
\ No newline at end of file
diff --git a/androidApp/src/main/res/values/styles.xml b/androidApp/src/main/res/values/styles.xml
index 1971a0a..4a51239 100644
--- a/androidApp/src/main/res/values/styles.xml
+++ b/androidApp/src/main/res/values/styles.xml
@@ -1,6 +1,6 @@
 <resources>
 
-    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
+    <style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>