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Merge pull request #216 from PeriodPals/feat/alert/view-model
Alert View Model
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142 changes: 142 additions & 0 deletions
142
app/src/main/java/com/android/periodpals/model/alert/AlertViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| package com.android.periodpals.model.alert | ||
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| import android.util.Log | ||
| import androidx.compose.runtime.State | ||
| import androidx.compose.runtime.mutableStateOf | ||
| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.viewModelScope | ||
| import kotlinx.coroutines.launch | ||
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|
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| private const val TAG = "AlertViewModel" | ||
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| /** | ||
| * ViewModel for managing alert data. | ||
| * | ||
| * @property alertModelSupabase The repository used for loading and saving alerts. | ||
| * @property _alerts Mutable state holding the list of alerts. | ||
| * @property alerts Public state exposing the list of alerts. | ||
| */ | ||
| class AlertViewModel(private val alertModelSupabase: AlertModelSupabase) : ViewModel() { | ||
| // remove this? | ||
| private var _alerts = mutableStateOf<List<Alert>?>(listOf()) | ||
| val alerts: State<List<Alert>?> = _alerts | ||
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|
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| /** | ||
| * Creates a new alert. | ||
| * | ||
| * @param alert The alert to be created. | ||
| */ | ||
| fun createAlert(alert: Alert) { | ||
| viewModelScope.launch { | ||
| alertModelSupabase.addAlert( | ||
| alert = alert, | ||
| onSuccess = { | ||
| Log.d(TAG, "createAlert: Success") | ||
| getAllAlerts() // refresh the alerts list | ||
| }, | ||
| onFailure = { e -> Log.e(TAG, "createAlert: fail to create alert: ${e.message}") }) | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Retrieves an alert by its ID. | ||
| * | ||
| * @param idAlert The ID of the alert to be retrieved. | ||
| * @return The alert if found, null otherwise. | ||
| */ | ||
| fun getAlert(idAlert: String): Alert? { | ||
| var alert: Alert? = null | ||
| viewModelScope.launch { | ||
| alertModelSupabase.getAlert( | ||
| idAlert = idAlert, | ||
| onSuccess = { fetched -> | ||
| Log.d(TAG, "getAlert: Success") | ||
| alert = fetched | ||
| }, | ||
| onFailure = { e -> Log.e(TAG, "getAlert: fail to get alert: ${e.message}") }) | ||
| } | ||
| return alert | ||
| } | ||
|
|
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| /** | ||
| * Retrieves all alerts. | ||
| * | ||
| * @return The list of all alerts. | ||
| */ | ||
| fun getAllAlerts(): List<Alert>? { | ||
| var alertsList: List<Alert>? = null | ||
| viewModelScope.launch { | ||
| alertModelSupabase.getAllAlerts( | ||
| onSuccess = { alerts -> | ||
| Log.d(TAG, "getAllAlerts: Success") | ||
| _alerts.value = alerts | ||
| alertsList = alerts | ||
| }, | ||
| onFailure = { e -> Log.e(TAG, "getAllAlerts: fail to get alerts: ${e.message}") }) | ||
| } | ||
| return alertsList | ||
| } | ||
|
|
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| fun getPalAlerts(uid: String): List<Alert>? { | ||
| val palAlertList: List<Alert>? = getAllAlerts() | ||
| return palAlertList?.filter { it.uid != uid } | ||
| } | ||
|
|
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| /** | ||
| * Retrieves alerts for a specific user by their UID. | ||
| * | ||
| * @param uid The UID of the user. | ||
| * @return The list of alerts for the user. | ||
| */ | ||
| fun getAlertsByUser(uid: String): List<Alert>? { | ||
| var alertsList: List<Alert>? = null | ||
| viewModelScope.launch { | ||
| alertModelSupabase.getAlertsFilteredBy( | ||
| // ideally the uid would not be passed as argument and instead we could get uid by | ||
| // UserViewModel.currentUser?.uid | ||
| cond = { eq("uid", uid) }, | ||
| onSuccess = { alerts -> | ||
| Log.d(TAG, "getMyAlerts: Success") | ||
| alertsList = alerts | ||
| }, | ||
| onFailure = { e -> Log.e(TAG, "getMyAlerts: fail to get alerts: ${e.message}") }) | ||
| } | ||
| return alertsList | ||
| } | ||
|
|
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| /** | ||
| * Updates an existing alert. | ||
| * | ||
| * @param alert The alert with updated parameters. | ||
| */ | ||
| fun updateAlert(alert: Alert) { | ||
| viewModelScope.launch { | ||
| alertModelSupabase.updateAlert( | ||
| alert = alert, | ||
| onSuccess = { | ||
| Log.d(TAG, "updateAlert: Success") | ||
| getAllAlerts() | ||
| }, | ||
| onFailure = { e -> Log.e(TAG, "updateAlert: fail to update alert: ${e.message}") }) | ||
| } | ||
| } | ||
|
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| /** | ||
| * Deletes an alert. | ||
| * | ||
| * @param alert The alert to be deleted. | ||
| */ | ||
| fun deleteAlert(alert: Alert) { | ||
| viewModelScope.launch { | ||
| alert.id?.let { | ||
| alertModelSupabase.deleteAlertById( | ||
| idAlert = it, | ||
| onSuccess = { | ||
| Log.d(TAG, "deleteAlert: Success") | ||
| getAllAlerts() | ||
| }, | ||
| onFailure = { e -> Log.e(TAG, "deleteAlert: fail to delete alert: ${e.message}") }) | ||
| } ?: run { Log.e(TAG, "deleteAlert: fail to delete alert: id of the Alert is null") } | ||
| } | ||
| } | ||
| } |
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