import Combine
import Foundation
import Photos
import SwiftUI

@MainActor
final class AttachmentsStore: ObservableObject {
    @Published var cameraAccessGranted = false
    @Published var galleryAccessGranted = false
    @Published var galleryItems: [GalleryItem] = []

    private let client: Client
    private let roster: Roster

    init(roster: Roster, client: Client) {
        self.client = client
        self.roster = roster
    }
}

extension AttachmentsStore {
    func checkCameraAuthorization() async {
        let status = AVCaptureDevice.authorizationStatus(for: .video)
        var isAuthorized = status == .authorized
        if status == .notDetermined {
            isAuthorized = await AVCaptureDevice.requestAccess(for: .video)
        }
        cameraAccessGranted = isAuthorized
    }

    func checkGalleryAuthorization() async {
        let status = PHPhotoLibrary.authorizationStatus()
        var isAuthorized = status == .authorized
        if status == .notDetermined {
            let req = await PHPhotoLibrary.requestAuthorization(for: .readWrite)
            isAuthorized = (req == .authorized) || (req == .limited)
        }
        galleryAccessGranted = isAuthorized
    }

    func fetchGalleryItems() async {
        guard galleryAccessGranted else { return }
        galleryItems = await GalleryItem.fetchAll()
    }
}