Feat/alert/alert lists UI improvements

app/src/main/java/com/android/periodpals/MainActivity.kt

@@ -236,8 +236,8 @@ fun PeriodPalsApp(
       composable(Screen.ALERT_LIST) {
         AlertListsScreen(
             alertViewModel,
-            authenticationViewModel,
             userViewModel,
+            authenticationViewModel,
             locationViewModel,
             gpsService,
             chatViewModel,

app/src/main/java/com/android/periodpals/model/alert/AlertViewModel.kt

@@ -54,21 +54,16 @@ private val messageValidators =
  *
  * @property alertModelSupabase The repository used for loading and saving alerts.
  * @property userId the id linked to the current user.
- * @property _alerts Mutable state holding the list of all alerts.
  * @property alerts Public state exposing the list of all alerts.
- * @property _myAlerts Mutable state holding the list of current users alerts.
  * @property myAlerts Public state exposing the list of current users alerts.
- * @property _alertsWithinRadius Mutable state holding the ordered list of all alerts within a
- *   specified radius.
  * @property alertsWithinRadius Public state exposing the ordered list of all alerts within a
  *   specified radius.
  * @property alertFilter Mutable state holding a filter for `filterAlerts`.
- * @property _filterAlerts Mutable state holding the list of alerts filtered by `alertFilter`.
  * @property filterAlerts Public state exposing the list of alerts filtered y `alertFilter`.
- * @property _palAlerts Mutable state holding the list of other users alerts within selected radius.
- * @property palAlerts Public state exposing the list of other users alerts within selected radius.
- * @property _selectedAlert Mutable state holding the selected alert.
+ * @property palAlerts Public state exposing the list of other users alerts within selected radius,
+ *   minus the accepted alerts.
  * @property selectedAlert Public state exposing the selected alert.
+ * @property acceptedAlerts Public state exposing the list of accepted alerts.
  */
 class AlertViewModel(private val alertModelSupabase: AlertModelSupabase) : ViewModel() {
   companion object {
@@ -96,12 +91,17 @@ class AlertViewModel(private val alertModelSupabase: AlertModelSupabase) : ViewM
   }
   val filterAlerts: State<List<Alert>> = _filterAlerts
 
-  private var _palAlerts = derivedStateOf { _filterAlerts.value.filter { it.uid != userId.value } }
+  private var _palAlerts = derivedStateOf {
+    _filterAlerts.value.filter { it.uid != userId.value && !_acceptedAlerts.value.contains(it) }
+  }
   val palAlerts: State<List<Alert>> = _palAlerts
 
   private var _selectedAlert = mutableStateOf<Alert?>(null)
   val selectedAlert: State<Alert?> = _selectedAlert
 
+  private var _acceptedAlerts = mutableStateOf<List<Alert>>(listOf())
+  val acceptedAlerts: State<List<Alert>> = _acceptedAlerts
+
   val formState =
       FormState(
           fields =
@@ -311,4 +311,22 @@ class AlertViewModel(private val alertModelSupabase: AlertModelSupabase) : ViewM
   fun selectAlert(alert: Alert) {
     viewModelScope.launch { _selectedAlert.value = alert }
   }
+
+  /**
+   * Accepts an alert and adds it to the list of accepted alerts.
+   *
+   * @param alert The alert to be accepted.
+   */
+  fun acceptAlert(alert: Alert) {
+    viewModelScope.launch { _acceptedAlerts.value += alert }
+  }
+
+  /**
+   * Un-accepts an alert and removes it from the list of accepted alerts.
+   *
+   * @param alert The alert to be unaccepted.
+   */
+  fun unAcceptAlert(alert: Alert) {
+    viewModelScope.launch { _acceptedAlerts.value -= alert }
+  }
 }

app/src/main/java/com/android/periodpals/model/user/UserModel.kt

@@ -76,6 +76,19 @@ interface UserRepository {
       onFailure: (Exception) -> Unit
   )
 
+  /**
+   * Downloads a file from the storage.
+   *
+   * @param filePath The path of the file to be downloaded.
+   * @param onSuccess Callback function to be called on success.
+   * @param onFailure Callback function to be called when there is an exception.
+   */
+  suspend fun downloadFilePublic(
+      filePath: String,
+      onSuccess: (bytes: ByteArray) -> Unit,
+      onFailure: (Exception) -> Unit
+  )
+
   /**
    * Downloads a file from the storage.
    *

app/src/main/java/com/android/periodpals/model/user/UserModelSupabase.kt

@@ -43,9 +43,7 @@ class UserRepositorySupabase(private val supabase: SupabaseClient) : UserReposit
   ) {
     try {
       val result =
-          withContext(Dispatchers.Main) {
-            supabase.postgrest[USERS].select {}.decodeList<UserDto>()
-          }
+          withContext(Dispatchers.IO) { supabase.postgrest[USERS].select {}.decodeList<UserDto>() }
       Log.d(TAG, "loadUserProfiles: Success")
       onSuccess(result)
     } catch (e: Exception) {
@@ -138,7 +136,7 @@ class UserRepositorySupabase(private val supabase: SupabaseClient) : UserReposit
       onFailure: (Exception) -> Unit,
   ) {
     try {
-      withContext(Dispatchers.Main) {
+      withContext(Dispatchers.IO) {
         val file = supabase.storage.from("avatars").downloadPublic("$filePath.jpg")
         Log.d(TAG, "downloadFile: Success")
         onSuccess(file)
@@ -148,4 +146,22 @@ class UserRepositorySupabase(private val supabase: SupabaseClient) : UserReposit
       onFailure(e)
     }
   }
+
+  override suspend fun downloadFilePublic(
+      filePath: String,
+      onSuccess: (bytes: ByteArray) -> Unit,
+      onFailure: (Exception) -> Unit,
+  ) {
+    try {
+      val file =
+          withContext(Dispatchers.IO) {
+            supabase.storage.from("avatars").downloadPublic("$filePath.jpg")
+          }
+      Log.d(TAG, "downloadFile: Success")
+      onSuccess(file)
+    } catch (e: Exception) {
+      Log.d(TAG, "downloadFile: fail to download file: ${e.message}")
+      onFailure(e)
+    }
+  }
 }

app/src/main/java/com/android/periodpals/model/user/UserViewModel.kt

@@ -262,6 +262,33 @@ class UserViewModel(private val userRepository: UserRepositorySupabase) : ViewMo
       )
     }
   }
+
+  /**
+   * Downloads a file from the storage.
+   *
+   * @param filePath The path of the file to be downloaded.
+   * @param onSuccess Callback function to be called on success, passes the bytes from the
+   *   downloaded file.
+   * @param onFailure Callback function to be called when there is an exception.
+   */
+  fun downloadFilePublic(
+      filePath: String,
+      onSuccess: (ByteArray) -> Unit,
+      onFailure: (Exception) -> Unit
+  ) {
+    viewModelScope.launch {
+      userRepository.downloadFilePublic(
+          filePath,
+          onSuccess = { bytes ->
+            Log.d(TAG, "downloadFile: Success")
+            onSuccess(bytes)
+          },
+          onFailure = { e: Exception ->
+            Log.d(TAG, "downloadFile: fail to download file: ${e.message}")
+            onFailure(e)
+          })
+    }
+  }
 }
 
 /**

app/src/main/java/com/android/periodpals/resources/C.kt

@@ -50,6 +50,9 @@ object C {
       const val NO_ALERTS_ICON = "noAlertsIcon"
       const val NO_ALERTS_TEXT = "noAlertsText"
 
+      const val ACCEPTED_ALERTS_TEXT = "acceptedAlertsText"
+      const val ACCEPTED_ALERTS_DIVIDER = "acceptedAlertsDivider"
+
       const val FILTER_FAB = "filterFab"
       const val FILTER_FAB_BUBBLE = "filterFabBubble"
       const val FILTER_DIALOG = "filterDialog"
@@ -66,12 +69,13 @@ object C {
 
       object PalsAlertItem {
         const val PAL_ALERT = "palsAlert"
+        const val PAL_ACCEPTED_ALERT = "palsAcceptedAlert"
         const val PAL_NAME = "palsName"
         const val PAL_MESSAGE = "palMessage"
         const val PAL_DIVIDER = "palDivider"
         const val PAL_BUTTONS = "palButtons"
         const val PAL_ACCEPT_BUTTON = "palAcceptButton"
-        const val PAL_DECLINE_BUTTON = "palDeclineButton"
+        const val PAL_UNACCEPT_BUTTON = "palUnAcceptButton"
       }
     }