Step 5. Implementing the Push client for Android

val pushClient = PushClient()

// Initialize the client
pushClient.initialize()

// Create with custom configuration using DSL-style builder
val pushClient = PushClient {
    enableCredentialCache = true
    timeout = 30
    // Any other configuration options
}

// Change display properties
credential.displayAccountName = "Babs Jensen"
credential.displayIssuer = "Example.com Checking Account"

pushClient.saveCredential(credential).onSuccess { updatedCredential ->
    // Handle successful update
    showMessage("Credential updated")
}.onFailure { exception ->
    // Handle failure
    showError("Failed to update credential: ${exception.message}")
}

// Remove a credential by ID
pushClient.deleteCredential(credentialId).onSuccess { isDeleted ->
    if (isDeleted) {
        showMessage("Credential deleted")
    } else {
        showMessage("Credential not found")
    }
}.onFailure { exception ->
    showError("Failed to delete credential: ${exception.message}")
}

// To approve
pushClient.approveNotification(notificationId)
    .onSuccess { success ->
        if (success) {
            // Notify user of successful authentication
        } else {
            // Handle failure
        }
    }
    .onFailure { error ->
        // Handle error
    }

// To deny
pushClient.denyNotification(notificationId)
    .onSuccess { success ->
        if (success) {
            // Notify user of successful denial
        } else {
            // Handle failure
        }
    }
    .onFailure { error ->
        // Handle error
    }

// The user sees matching numbers on both login screen and mobile device
// They enter or select the challenge response
val challengeResponse = userSelectedResponse // e.g., "80"

pushClient.approveChallengeNotification(notificationId, challengeResponse)
    .onSuccess { success ->
        if (success) {
            // Notify user of successful authentication
        } else {
            // Handle failure (possibly wrong challenge response)
        }
    }
    .onFailure { error ->
        // Handle error
    }

// After successful biometric authentication
val authMethod = "fingerprint" // or "face", "iris", etc.

pushClient.approveBiometricNotification(notificationId, authMethod)
    .onSuccess { success ->
        if (success) {
            // Notify user of successful authentication
        } else {
            // Handle failure
        }
    }
    .onFailure { error ->
        // Handle error
    }

// Get all pending notifications
pushClient.getPendingNotifications().onSuccess { notifications ->
    if (notifications.isNotEmpty()) {
        // Display pending notifications to the user
        displayPendingNotifications(notifications)
    } else {
        // No pending notifications
        showEmptyState()
    }
}.onFailure { error ->
    // Handle error
    showError("Failed to retrieve notifications: ${error.message}")
}

// Get a specific notification by ID
pushClient.getNotification(notificationId).onSuccess { notification ->
    if (notification != null) {
        // Display the notification details
        showNotificationDetails(notification)
    } else {
        // Notification not found
        showNotFoundMessage()
    }
}.onFailure { error ->
    // Handle error
    showError("Failed to retrieve notification: ${error.message}")
}

// Create a client with custom notification cleanup configuration
val pushClient = PushClient {
    // Configure notification cleanup
    notificationCleanupConfig = NotificationCleanupConfig {
        // Choose a cleanup mode: NONE, COUNT_BASED, AGE_BASED, or HYBRID
        cleanupMode = NotificationCleanupConfig.CleanupMode.HYBRID

        // Maximum notifications to keep when using COUNT_BASED or HYBRID mode
        maxStoredNotifications = 50

        // Maximum age in days for notifications when using AGE_BASED or HYBRID mode
        maxNotificationAgeDays = 14
    }
}

// Clean up notifications for all credentials
pushClient.cleanupNotifications()
    .onSuccess { count ->
        println("Removed $count old notifications")
    }

// Clean up notifications for a specific credential
pushClient.cleanupNotifications(credentialId)
    .onSuccess { count ->
        println("Removed $count old notifications for credential $credentialId")
    }

// Create a custom storage instance with specific parameters
val customStorage = SQLPushStorage {
    context = applicationContext
    databaseName = "my_custom_push_db.db"
    passphraseProvider = NonePassphraseProvider()
}

// Create the client with the custom storage
val pushClient = PushClient {
    storage = customStorage
    enableCredentialCache = true
}

class MyCustomStorage : PushStorage {
    override suspend fun storePushCredential(credential: PushCredential) {
        // Implement storing the credential
    }

    override suspend fun retrievePushCredential(credentialId: String): PushCredential? {
        // Implement retrieving a credential by ID
        return null
    }

    override suspend fun removePushCredential(credentialId: String): Boolean {
        // Implement deleting a credential by ID
        return true
    }

    override suspend fun getAllPushCredentials(): List<PushCredential> {
        // Implement listing all stored credentials
        return emptyList()
    }

    override suspend fun storePushNotification(notification: PushNotification) {
        // Implement storing a notification
    }

    override suspend fun retrievePushNotification(notificationId: String): PushNotification? {
        // Implement retrieving a notification by ID
        return null
    }

    override suspend fun removePushNotification(notificationId: String): Boolean {
        // Implement deleting a notification by ID
        return true
    }

}