//
//  ContentView.swift
//  iOSFirst
//
//  Created by 孙宇峰 on 2023/1/31.
//

import SwiftUI
import RxSwift
import RxCocoa
import RxRelay

struct LoginView: View {
    private var viewModel = LoginViewModel()
    var bag = DisposeBag()
    @State private var inputAccountMessage:String = ""
    @State private var isPresent:Bool = false
    @State private var checked:Bool = true
    @State private var inputPasswordMessage:String = ""
    @Environment(\.presentationMode) var presentationMode;

    
    var body: some View {
        VStack(alignment:.leading,spacing: 0) {
            HStack{
                Spacer()
                Image("ic_setting")
                    .imageScale(.large)
                    .foregroundColor(.accentColor)
                Text("设置").font(.system(size: 14))
            }
            
            Text("欢迎来到")
                .foregroundColor(.gray)
                .font(.system(size: 30))
                .multilineTextAlignment(.center)
                .bold()
                .padding(.top,20)
            
            
            HStack{
                Image("app_logo")
                    .resizable()
                    .imageScale(.large)
                    .foregroundColor(.accentColor)
                    .scaledToFill()
                    .frame(width: 50,height: 50)
                
                Image("txtlogo")
                    .imageScale(.large)
                    .foregroundColor(.accentColor)
                    .frame(width: 240,height: 35)
            }.frame(height: 40)
                .padding(.top,20)
                .padding(.bottom,100)
            
            VStack(alignment: .leading, spacing: 400) {
                HStack(alignment: .center, spacing: 15) {
                    Image("ic_person")
                        .imageScale(.large)
                        .foregroundColor(.accentColor)
                    
                    TextField("请输入手机号",text:$inputAccountMessage)
                        .keyboardType(UIKeyboardType.namePhonePad)
                        .font(.system(size: 16))
                        .frame(maxWidth: .infinity,alignment: .center)
                    
                }
                
            }
            .frame(height: 80)
            
            Divider()
            VStack(alignment: .leading, spacing: 400) {
                HStack(alignment: .center, spacing: 15) {
                    Image("ic_pwd")
                        .imageScale(.large)
                        .foregroundColor(.accentColor)
                    
                    SecureField("请输入密码",text:$inputPasswordMessage)
                        .textContentType(.oneTimeCode)
                        .keyboardType(UIKeyboardType.namePhonePad)
                        .font(.system(size: 16))
                        .frame(maxWidth: .infinity,alignment: .center)
                    
                    
                }
                
            }.frame(height: 80)
            Divider().padding(.bottom,20)
            
            
            VStack(alignment: .trailing, spacing: 400) {
                
                VStack(alignment: .trailing, spacing: 15) {
                    HStack {
                        CheckBoxView(checked: $checked)
                        Text("我已阅读并同意")
                            .foregroundColor(.black)
                            .font(.system(size: 15))
                        Text("《星火云鸽用户协议》")
                            .foregroundColor(.blue)
                            .font(.system(size: 15))
                        Spacer()
                    }
                    Spacer().frame(height: 15)
                    Button(action: {
                        if(inputAccountMessage.isEmpty){
                            SUIToast.show(messageItem: .init(
                                message: "账号不能为空",
                                bgColor: .gray,
                                messageColor: .white
                            ))
                        }else if(inputPasswordMessage.isEmpty){
                            SUIToast.show(messageItem: .init(
                                message: "密码不能为空",
                                bgColor: .gray,
                                messageColor: .white
                            ))
                        }else {
                            viewModel.loginUser(username: inputAccountMessage, password: inputPasswordMessage)
                            if (!viewModel.userResponse.hasObservers){
                                viewModel.userResponse.subscribe { event in
                                    isPresent=true
                                    print("接收到的token值\(String(describing: event.element?.token_value))")
                                    // 这里需要返回首页，登陆成功后销毁本页面
                                    self.presentationMode.wrappedValue.dismiss()
                                }
                                
                            }
                        }
                        
                    }){
                        Text("登录")
                            .font(.system(size: 17))
                            .bold()
                            .frame(minWidth: 0, maxWidth: .infinity)
                            .padding()
                            .foregroundColor(.white)
                            .background(.blue)
                            .cornerRadius(30)
                    }.fullScreenCover(isPresented: $isPresent) {
                        TestView(settingPagePresented: $isPresent)
                    }
                    
                }
                
            }
            
            HStack{
                Text("验证码登录").font(.system(size:15)).onTapGesture {
                    let msg="点击了验证码登录"
                    print(msg)
                    SUIToast.show(messageItem: .init(
                        message: msg,
                        bgColor: .gray,
                        messageColor: .white
                    ))
                }
                Spacer ()
                Text("忘记密码？").font(.system(size:15)).onTapGesture {
                    let msg="点击了密码"
                    print(msg)
                    SUIToast.show(messageItem: .init(
                        message: msg,
                        bgColor: .gray,
                        messageColor: .white
                    ))
                    
                    
                }.padding(.vertical,20).font(.system(size: 15))
                
                
            }
            Spacer()
        }.padding()
            .frame(width: .infinity,height: .infinity)
    }
    
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        LoginView()
    }
}

struct CheckBoxView: View {
    @Binding var checked: Bool

    var body: some View {
        Image(systemName: checked ? "checkmark.square.fill" : "square")
            .foregroundColor(checked ? Color(UIColor.systemBlue) : Color.secondary)
            .onTapGesture {
                self.checked.toggle()
            }
    }
}