//
//  PushInstanceSettingsView.swift
//  Tusker
//
//  Created by Shadowfacts on 4/7/24.
//  Copyright © 2024 Shadowfacts. All rights reserved.
//

import SwiftUI
import UserAccounts
import Pachyderm

struct PushInstanceSettingsView: View {
    let account: UserAccountInfo
    let pushProxyRegistration: PushProxyRegistration
    @State private var mode: TriStateToggle.Mode
    @State private var error: Error?
    
    var body: some View {
        VStack(alignment: .prefsAvatar) {
            HStack {
                PrefsAccountView(account: account)
                TriStateToggle(titleKey: "\(account.instanceURL.host!) notifications enabled", mode: $mode, onChange: updateNotificationsEnabled(enabled:))
            }
            PushSubscriptionView(account: account)
        }
        .alertWithData("An Error Occurred", data: $error) { data in
            Button("OK") {}
        } message: { data in
            Text(data.localizedDescription)
        }

    }
    
    private func updateNotificationsEnabled(enabled: Bool) async {
        if enabled {
            do {
                try await enableNotifications()
            } catch {
                self.error = .enabling(error)
            }
        } else {
            do {
                try await disableNotifications()
            } catch {
                self.error = .disabling(error)
            }
        }
    }
    
    private func enableNotifications() async throws {
        let req = Pachyderm.PushSubscription.create(
            endpoint: pushProxyRegistration.endpoint,
            publicKey: <#T##Data#>,
            authSecret: <#T##Data#>,
            alerts: <#T##PushSubscription.Alerts#>,
            policy: <#T##PushSubscription.Policy#>
        )
    }
    
    private func disableNotifications() async throws {
        
    }
}

private enum Error: LocalizedError {
    case enabling(any Swift.Error)
    case disabling(any Swift.Error)
    
    var errorDescription: String? {
        switch self {
        case .enabling(let error):
            "Enabling push: \(error.localizedDescription)"
        case .disabling(let error):
            "Disabling push: \(error.localizedDescription)"
        }
    }
}

//#Preview {
//    PushInstanceSettingsView()
//}