//
//  MessageSetting.swift
//  copinism
//
//  Created by 黄仕杰 on 2024/6/8.
//

import SwiftUI

struct MessageSettingsView: View {
    @State private var isNotificationEnabled = false
    @State private var isSpamFilterEnabled = false
    @State private var isDiscussionEnabled = false

    var body: some View {
        NavigationView {
            Form {
                if isNotificationEnabled {
                    Section(header: Text("消息设置")) {
                        NavigationLink(destination: Text("接受消息通知")) {
                            Text("接受消息通知")
                            Spacer()
                            Text("已开启")
                                .font(.subheadline)
                                .foregroundColor(.gray)
                        }
                    }
                } else {
                    Section(header: Text("消息设置")) {
                        VStack(alignment: .leading) {
                            Text("消息通知已关闭")
                                .font(.headline)
                                .padding(.bottom, 2)
                            Text("你已在系统中关闭通知。点击「去开启」前往系统设置-通知中，打开「允许通知」")
                                .font(.subheadline)
                                .foregroundColor(.gray)
                            Button(action: {
                                if let appSettings = URL(string: UIApplication.openSettingsURLString) {
                                    UIApplication.shared.open(appSettings, options: [:], completionHandler: nil)
                                }
                            }) {
                                Text("去开启")
                                    .foregroundColor(.blue)
                            }
                        }
                        .padding()
                    }
                }

                Section(header: Text("消息通知设置")) {
                    Toggle(isOn: $isSpamFilterEnabled) {
                        Text("一键免打扰")
                        Spacer()
                        Text("只接收xxxx消息")
                            .font(.subheadline)
                            .foregroundColor(.gray)
                    }
                    Toggle(isOn: $isDiscussionEnabled) {
                        Text("讨论消息")
                        Spacer()
                        Text("(讨论回复、点赞等)")
                            .font(.subheadline)
                            .foregroundColor(.gray)
                    }
                }
            }
            .navigationTitle("消息设置")
            .navigationBarTitleDisplayMode(.inline)
            .onAppear() {
                isNotificationEnabled = UserDefaults.standard.bool(forKey: "notify")
                NotificationCenter.default.addObserver(forName: UIApplication.willEnterForegroundNotification, object: nil, queue: .main) { _ in
                    isNotificationEnabled = UserDefaults.standard.bool(forKey: "notify")
                }
            }
            .onDisappear() {
                NotificationCenter.default.removeObserver(self, name: UIApplication.willEnterForegroundNotification, object: nil)
            }
        }
    }
}

#Preview {
    MessageSettingsView()
}