Refactors to improve code and architecture.

app/src/androidTest/java/org/mozilla/tryfox/data/FakeIntentManager.kt

@@ -0,0 +1,32 @@
+package org.mozilla.tryfox.data
+
+import org.mozilla.tryfox.data.managers.IntentManager
+import java.io.File
+
+/**
+ * A fake implementation of [IntentManager] for use in instrumented tests.
+ * This class allows for verifying that the `installApk` method is called with the correct file.
+ */
+class FakeIntentManager() : IntentManager {
+
+    /**
+     * A boolean flag to indicate whether the `installApk` method was called.
+     */
+    val wasInstallApkCalled: Boolean
+        get() = installedFile != null
+
+    /**
+     * The file that was passed to the `installApk` method.
+     */
+    var installedFile: File? = null
+        private set
+
+    /**
+     * Overrides the `installApk` method to capture the file and set the `wasInstallApkCalled` flag.
+     *
+     * @param file The file to be "installed".
+     */
+    override fun installApk(file: File) {
+        installedFile = file
+    }
+}

app/src/androidTest/java/org/mozilla/tryfox/ui/screens/ProfileScreenTest.kt

@@ -1,23 +1,24 @@
 package org.mozilla.tryfox.ui.screens
 
 import androidx.compose.ui.semantics.SemanticsProperties
-import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.assert
+import androidx.compose.ui.test.hasText
 import androidx.compose.ui.test.junit4.createComposeRule
 import androidx.compose.ui.test.onAllNodesWithTag
 import androidx.compose.ui.test.onNodeWithTag
 import androidx.compose.ui.test.performClick
 import androidx.compose.ui.test.performTextInput
 import androidx.test.ext.junit.runners.AndroidJUnit4
-import org.junit.Assert.assertNotNull
+import org.junit.Assert.assertTrue
 import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.mozilla.tryfox.data.FakeCacheManager
 import org.mozilla.tryfox.data.FakeFenixRepository
+import org.mozilla.tryfox.data.FakeIntentManager
 import org.mozilla.tryfox.data.FakeUserDataRepository
 import org.mozilla.tryfox.data.UserDataRepository
 import org.mozilla.tryfox.data.managers.CacheManager
-import java.io.File
 
 @RunWith(AndroidJUnit4::class)
 class ProfileScreenTest {
@@ -28,11 +29,7 @@ class ProfileScreenTest {
     private val fenixRepository = FakeFenixRepository(downloadProgressDelayMillis = 100L)
     private val userDataRepository: UserDataRepository = FakeUserDataRepository()
     private val cacheManager: CacheManager = FakeCacheManager()
-    private val profileViewModel = ProfileViewModel(
-        fenixRepository = fenixRepository,
-        userDataRepository = userDataRepository,
-        cacheManager = cacheManager,
-    )
+    private val intentManager = FakeIntentManager()
     private val emailInputTag = "profile_email_input"
     private val emailClearButtonTag = "profile_email_clear_button"
     private val searchButtonTag = "profile_search_button"
@@ -45,11 +42,13 @@ class ProfileScreenTest {
 
     @Test
     fun searchPushesAndCheckDownloadAndInstallStates() {
-        var capturedApkFile: File? = null
-
-        profileViewModel.onInstallApk = { apkFile ->
-            capturedApkFile = apkFile
-        }
+        val profileViewModel = ProfileViewModel(
+            fenixRepository = fenixRepository,
+            userDataRepository = userDataRepository,
+            cacheManager = cacheManager,
+            intentManager = intentManager,
+            authorEmail = null,
+        )
 
         composeTestRule.setContent {
             ProfileScreen(
@@ -75,25 +74,39 @@ class ProfileScreenTest {
             .performClick()
 
         composeTestRule.waitUntil("Download button enters loading state", longTimeoutMillis) {
-            tryOrFalse {
-                composeTestRule.onNodeWithTag(downloadButtonLoadingTag, useUnmergedTree = true).assertIsDisplayed()
-            }
+            composeTestRule.onAllNodesWithTag(downloadButtonLoadingTag, useUnmergedTree = true)
+                .fetchSemanticsNodes().isNotEmpty()
         }
 
         composeTestRule.waitUntil("Download button enters install state", longTimeoutMillis) {
-            tryOrFalse {
-                composeTestRule.onNodeWithTag(downloadButtonInstallTag, useUnmergedTree = true)
-                    .assertIsDisplayed()
-            }
+            composeTestRule.onAllNodesWithTag(downloadButtonInstallTag, useUnmergedTree = true)
+                .fetchSemanticsNodes().isNotEmpty()
         }
 
-        assertNotNull("APK file should have been captured by onInstallApk callback", capturedApkFile)
+        assertTrue(
+            "APK file should have been captured by onInstallApk callback",
+            intentManager.wasInstallApkCalled,
+        )
     }
 
-    private fun tryOrFalse(block: () -> Unit): Boolean = try {
-            block()
-            true
-        } catch (_: AssertionError) {
-            false
+    @Test
+    fun test_profileScreen_displays_initial_authorEmail_in_searchField() {
+        val initialEmail = "[email protected]"
+        val profileViewModelWithEmail = ProfileViewModel(
+            fenixRepository = fenixRepository,
+            userDataRepository = userDataRepository,
+            cacheManager = cacheManager,
+            intentManager = intentManager,
+            authorEmail = initialEmail,
+        )
+
+        composeTestRule.setContent {
+            ProfileScreen(
+                profileViewModel = profileViewModelWithEmail,
+                onNavigateUp = { },
+            )
+        }
+
+        composeTestRule.onNodeWithTag(emailInputTag).assert(hasText(initialEmail))
     }
 }

app/src/main/java/org/mozilla/tryfox/MainActivity.kt

@@ -1,17 +1,12 @@
 package org.mozilla.tryfox
 
-import android.content.ActivityNotFoundException
 import android.content.Intent
-import android.net.Uri
 import android.os.Bundle
 import android.util.Log
-import android.widget.Toast
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.core.content.FileProvider
 import androidx.navigation.NavHostController
 import androidx.navigation.NavType
 import androidx.navigation.compose.NavHost
@@ -20,30 +15,58 @@ import androidx.navigation.compose.rememberNavController
 import androidx.navigation.navArgument
 import androidx.navigation.navDeepLink
 import org.koin.androidx.compose.koinViewModel
-import org.koin.androidx.viewmodel.ext.android.viewModel
+import org.koin.core.parameter.parametersOf
 import org.mozilla.tryfox.ui.screens.HomeScreen
-import org.mozilla.tryfox.ui.screens.HomeViewModel
 import org.mozilla.tryfox.ui.screens.ProfileScreen
-import org.mozilla.tryfox.ui.screens.ProfileViewModel
 import org.mozilla.tryfox.ui.screens.TryFoxMainScreen
 import org.mozilla.tryfox.ui.theme.TryFoxTheme
-import java.io.File
 import java.net.URLDecoder
 
+/**
+ * Sealed class representing the navigation screens in the application.
+ * Each object corresponds to a specific route in the navigation graph.
+ */
 sealed class NavScreen(val route: String) {
+    /**
+     * Represents the Home screen.
+     */
     data object Home : NavScreen("home")
+
+    /**
+     * Represents the Treeherder search screen without arguments.
+     */
     data object TreeherderSearch : NavScreen("treeherder_search")
+
+    /**
+     * Represents the Treeherder search screen with project and revision arguments.
+     */
     data object TreeherderSearchWithArgs : NavScreen("treeherder_search/{project}/{revision}") {
+        /**
+         * Creates a route for the Treeherder search screen with the given project and revision.
+         * @param project The project name.
+         * @param revision The revision hash.
+         * @return The formatted route string.
+         */
         fun createRoute(project: String, revision: String) = "treeherder_search/$project/$revision"
     }
+
+    /**
+     * Represents the Profile screen.
+     */
     data object Profile : NavScreen("profile")
+
+    /**
+     * Represents the Profile screen filtered by email.
+     */
     data object ProfileByEmail : NavScreen("profile_by_email?email={email}")
 }
 
+/**
+ * The main activity of the TryFox application.
+ * This activity sets up the navigation host and handles deep links.
+ */
 class MainActivity : ComponentActivity() {
 
-    // Inject FenixInstallerViewModel using Koin
-    private val tryFoxViewModel: TryFoxViewModel by viewModel()
     private lateinit var navController: NavHostController
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -53,7 +76,7 @@ class MainActivity : ComponentActivity() {
         setContent {
             TryFoxTheme {
                 // Pass the Koin-injected ViewModel
-                AppNavigation(tryFoxViewModel)
+                AppNavigation()
             }
         }
     }
@@ -67,47 +90,29 @@ class MainActivity : ComponentActivity() {
         }
     }
 
-    private fun installApk(file: File) {
-        val fileUri: Uri = FileProvider.getUriForFile(
-            this,
-            "${BuildConfig.APPLICATION_ID}.provider",
-            file,
-        )
-        val intent = Intent(Intent.ACTION_VIEW).apply {
-            setDataAndType(fileUri, "application/vnd.android.package-archive")
-            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-            addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-        }
-        try {
-            startActivity(intent)
-        } catch (e: ActivityNotFoundException) {
-            Toast.makeText(this, "No application found to install APK", Toast.LENGTH_LONG).show()
-            Log.e("MainActivity", "Error installing APK", e)
-        }
-    }
-
+    /**
+     * Composable function that sets up the application's navigation.
+     * It defines the navigation graph and handles different routes and deep links.
+     */
     @Composable
-    fun AppNavigation(mainActivityViewModel: TryFoxViewModel) {
+    fun AppNavigation() {
         val localNavController = rememberNavController()
         [email protected] = localNavController
         Log.d("MainActivity", "AppNavigation: NavController instance assigned: $localNavController")
 
         NavHost(navController = localNavController, startDestination = NavScreen.Home.route) {
             composable(NavScreen.Home.route) {
                 // Inject HomeViewModel using Koin in Composable
-                val homeViewModel: HomeViewModel = koinViewModel()
-                homeViewModel.onInstallApk = ::installApk
                 HomeScreen(
                     onNavigateToTreeherder = { localNavController.navigate(NavScreen.TreeherderSearch.route) },
                     onNavigateToProfile = { localNavController.navigate(NavScreen.Profile.route) },
-                    homeViewModel = homeViewModel,
+                    homeViewModel = koinViewModel(),
                 )
             }
             composable(NavScreen.TreeherderSearch.route) {
                 // mainActivityViewModel is already injected and passed as a parameter
-                mainActivityViewModel.onInstallApk = ::installApk
                 TryFoxMainScreen(
-                    tryFoxViewModel = mainActivityViewModel,
+                    tryFoxViewModel = koinViewModel(),
                     onNavigateUp = { localNavController.popBackStack() },
                 )
             }
@@ -134,52 +139,29 @@ class MainActivity : ComponentActivity() {
                     "MainActivity",
                     "TreeherderSearchWithArgs composable: project='$project', revision='$revision' from NavBackStackEntry. ID: ${backStackEntry.id}",
                 )
-
-                LaunchedEffect(project, revision) {
-                    Log.d(
-                        "MainActivity",
-                        "TreeherderSearchWithArgs LaunchedEffect: project='$project', revision='$revision'",
-                    )
-                    mainActivityViewModel.setRevisionFromDeepLinkAndSearch(
-                        project,
-                        revision,
-                    )
-                }
-                mainActivityViewModel.onInstallApk = ::installApk
                 TryFoxMainScreen(
-                    tryFoxViewModel = mainActivityViewModel,
+                    tryFoxViewModel = koinViewModel { parametersOf(project, revision) },
                     onNavigateUp = { localNavController.popBackStack() },
                 )
             }
             composable(NavScreen.Profile.route) {
-                // Inject ProfileViewModel using Koin in Composable
-                val profileViewModel: ProfileViewModel = koinViewModel()
-                profileViewModel.onInstallApk = ::installApk // Assuming ProfileViewModel also needs this
                 ProfileScreen(
                     onNavigateUp = { localNavController.popBackStack() },
-                    profileViewModel = profileViewModel,
+                    profileViewModel = koinViewModel(),
                 )
             }
             composable(
                 route = NavScreen.ProfileByEmail.route,
                 arguments = listOf(navArgument("email") { type = NavType.StringType }),
                 deepLinks = listOf(navDeepLink { uriPattern = "https://treeherder.mozilla.org/jobs?repo={repo}&author={email}" }),
             ) { backStackEntry ->
-                val profileViewModel: ProfileViewModel = koinViewModel()
-                val encodedEmail = backStackEntry.arguments?.getString("email")
-
-                LaunchedEffect(encodedEmail) {
-                    encodedEmail?.let {
-                        val email = URLDecoder.decode(it, "UTF-8")
-                        profileViewModel.updateAuthorEmail(email)
-                        profileViewModel.searchByAuthor()
-                    }
+                val email = backStackEntry.arguments?.getString("email")?.let {
+                    URLDecoder.decode(it, "UTF-8")
                 }
 
-                profileViewModel.onInstallApk = ::installApk
                 ProfileScreen(
                     onNavigateUp = { localNavController.popBackStack() },
-                    profileViewModel = profileViewModel,
+                    profileViewModel = koinViewModel { parametersOf(email) },
                 )
             }
         }

app/src/main/java/org/mozilla/tryfox/TryFoxViewModel.kt

@@ -27,14 +27,25 @@ import org.mozilla.tryfox.ui.models.ArtifactUiModel
 import org.mozilla.tryfox.ui.models.JobDetailsUiModel
 import java.io.File
 
+/**
+ * ViewModel for the TryFox feature, responsible for fetching job and artifact data from the repository,
+ * managing the download and caching of artifacts, and exposing the UI state to the composable screens.
+ *
+ * @param repository The repository for fetching data from the network.
+ * @param cacheManager The manager for handling application cache.
+ * @param revision The initial revision to search for.
+ * @param repo The initial repository to search in.
+ */
 class TryFoxViewModel(
     private val repository: IFenixRepository,
     private val cacheManager: CacheManager,
+    revision: String?,
+    repo: String?,
 ) : ViewModel() {
-    var revision by mutableStateOf("")
+    var revision by mutableStateOf(revision ?: "")
         private set
 
-    var selectedProject by mutableStateOf("try")
+    var selectedProject by mutableStateOf(repo ?: "try")
         private set
 
     var relevantPushComment by mutableStateOf<String?>(null)