import SwiftUI
import AVFoundation

// MARK: - 相机权限视图
struct CameraPermissionView: View {
    @EnvironmentObject var languageManager: LanguageManager
    let authorizationStatus: AVAuthorizationStatus
    let onRequestPermission: () -> Void
    let onOpenSettings: () -> Void
    
    var body: some View {
        VStack(spacing: 30) {
            Spacer()
            
            // 相机图标
            Image(systemName: "camera.fill")
                .font(.system(size: 80))
                .foregroundColor(.gray)
            
            // 标题
            Text("camera_permission_title".localized)
                .font(.largeTitle)
                .fontWeight(.bold)
                .multilineTextAlignment(.center)
                .id(languageManager.refreshTrigger)
            
            // 描述文本
            Text(getDescriptionText())
                .font(.body)
                .multilineTextAlignment(.center)
                .foregroundColor(.secondary)
                .padding(.horizontal, 40)
                .id(languageManager.refreshTrigger)
            
            // 操作按钮
            VStack(spacing: 15) {
                if authorizationStatus == .notDetermined {
                    Button(action: onRequestPermission) {
                        HStack {
                            Image(systemName: "camera.badge.ellipsis")
                            Text("request_camera_permission".localized)
                                .id(languageManager.refreshTrigger)
                        }
                        .font(.headline)
                        .foregroundColor(.white)
                        .frame(maxWidth: .infinity)
                        .padding()
                        .background(Color.blue)
                        .cornerRadius(12)
                    }
                } else if authorizationStatus == .denied || authorizationStatus == .restricted {
                    Button(action: onOpenSettings) {
                        HStack {
                            Image(systemName: "gear")
                            Text("open_settings".localized)
                                .id(languageManager.refreshTrigger)
                        }
                        .font(.headline)
                        .foregroundColor(.white)
                        .frame(maxWidth: .infinity)
                        .padding()
                        .background(Color.orange)
                        .cornerRadius(12)
                    }
                }
            }
            .padding(.horizontal, 40)
            
            Spacer()
        }
        .background(Color(.systemBackground))
    }
    
    private func getDescriptionText() -> String {
        switch authorizationStatus {
        case .notDetermined:
            return "camera_permission_description".localized
        case .denied:
            return "camera_permission_denied".localized
        case .restricted:
            return "camera_permission_restricted".localized
        default:
            return "camera_permission_unknown".localized
        }
    }
}