//
//  SPLoginManager.swift
//  MoviaBox
//
//  Created by 曾觉新 on 2025/4/8.
//

import UIKit
import SmartCodable

class SPLoginManager: NSObject {
    
    enum LoginType: String, SmartCaseDefaultable {
        case apple = "Apple"
        case faceBook = "Facebook"
        case google = "Google"
        case tiktok = "Tiktok"
    }
    
    static let manager = SPLoginManager()
    
    private(set) var token: SPTokenModel?
    private(set) var userInfo: SPUserInfo?
    
    ///是否登录
    var isLogin: Bool {
        return !(userInfo?.is_tourist ?? true)
    }
    
    ///是否正在刷新token
    private(set) var isRefreshingToken = false
    
    override init() {
        super.init()
        token = UserDefaults.jx_object(forKey: kSPLoginTokenDefaultsKey, class: SPTokenModel.self) as? SPTokenModel
        userInfo = UserDefaults.jx_object(forKey: kSPLoginUserInfoDefaultsKey, class: SPUserInfo.self) as? SPUserInfo
    }
    
    ///判断登录状态，未登录打开登录页面
    func isLoginAndOpenLoginVC() -> Bool {
        if !isLogin {
            openLoginVC()
        }
        return isLogin
    }
    
    func openLoginVC() {
        let vc = SPLoginViewController()
        let nav = SPNavigationController(rootViewController: vc)
        nav.modalPresentationStyle = .fullScreen
        
        SPAPPTool.topViewController()?.present(nav, animated: true)
    }
    
    func setLoginToken(token: SPTokenModel?) {
        self.token = token
        UserDefaults.jx_setObject(token, forKey: kSPLoginTokenDefaultsKey)
    }
    
    ///第三方登录
    func thirdLogin(type: LoginType, presentingViewController: UIViewController, completer: ((_ isFinish: Bool) -> Void)?) {
        switch type {
            case .apple:
                appleSignLogin { [weak self] model in
                    self?.requestThirdLogin(thirdSignModel: model, completer: completer)
                }
                
            case .faceBook:
                facebookSignLogin(presentingViewController: presentingViewController) { [weak self] model in
                    self?.requestThirdLogin(thirdSignModel: model, completer: completer)
                }
                
            default:
                break
        }
    }
    
    ///退出登录
    func logout(completer: ((_ isFinish: Bool) -> Void)?) {
        SPUserAPI.requestSignout { [weak self] token in
            guard let self = self else { return }
            if let token = token {
                self.setLoginToken(token: token)
                self.userInfo?.is_tourist = true
                self.updateUserInfo(completer: nil)
                completer?(true)
                NotificationCenter.default.post(name: SPLoginManager.loginStateDidChangeNotification, object: nil)
            } else {
                completer?(false)
            }
        }
    }
    
    ///删除账号
    func deleteAccount(completer: ((_ isFinish: Bool) -> Void)?) {
        SPUserAPI.requestLogoff { [weak self] isFinish in
            guard let self = self else { return }
            if isFinish {
                self.setLoginToken(token: nil)
                self.userInfo?.is_tourist = true
                self.updateUserInfo(completer: nil)
                completer?(true)
                NotificationCenter.default.post(name: SPLoginManager.loginStateDidChangeNotification, object: nil)
            } else {
                completer?(false)
            }
        }
    }
    
    ///更新用户信息
    func updateUserInfo(completer: (() -> Void)?) {
        
        SPUserAPI.requestUserInfo { [weak self] userInfo in
            guard let self = self else { return }
            if let userInfo = userInfo {
                self.userInfo = userInfo
                UserDefaults.jx_setObject(userInfo, forKey: kSPLoginUserInfoDefaultsKey)
            }
            completer?()
        }
        
    }
    
}

extension SPLoginManager {
    ///游客登录
    func requestVisitorLogin(completer: (() -> Void)?) {
        if isRefreshingToken {
            completer?()
            return
        }
        isRefreshingToken = true
        
        SPNetwork.requestToken { [weak self] token in
            guard let self = self else { return }
            self.isRefreshingToken = false
            completer?()
        }
    }
    
    
    ///请求第三方登录
    private func requestThirdLogin(thirdSignModel: SPThirdSignModel?, completer: ((_ isFinish: Bool) -> Void)?) {
        guard let thirdSignModel = thirdSignModel else {
            completer?(false)
            return
        }
        
        SPUserAPI.requestThirdLogin(model: thirdSignModel) { [weak self] token in
            guard let self = self else { return }
            guard let token = token else {
                completer?(false)
                return
            }
            self.setLoginToken(token: token)
            self.userInfo?.is_tourist = false
            self.updateUserInfo(completer: nil)
            completer?(true)
            NotificationCenter.default.post(name: SPLoginManager.loginStateDidChangeNotification, object: nil)
        }
        
    }
    
}

extension SPLoginManager {
    
    ///登录状态发生变化
    @objc static let loginStateDidChangeNotification = NSNotification.Name(rawValue: "SPLoginManager.loginStateDidChangeNotification")
    
}