//
//  LaunchViewController.swift
//  SHECommunity
//
//  Created by Lin on 2025/1/3.
//

import UIKit
import RxSwift
import SwiftyUserDefaults
import RxCocoa

class LaunchViewController: BaseViewController {

    private let showVersion = 1
    private var privacyConsentView: LaunchPrivacyConsentView?
    
    override func viewDidLoad() {
        super.viewDidLoad()

        view.backgroundColor = .white
        setupLayout()
        if Defaults[\.didAgreeLaunchPrivacy] {
            proceedAfterPrivacyAgreed()
        } else {
            showPrivacyConsentIfNeeded()
        }
    }

    private func proceedAfterPrivacyAgreed() {
        AppDelegate.shared.setupPrivacyGrantedSDKs()
        getUserConfig()
    }

    private func showPrivacyConsentIfNeeded() {
        let consent = LaunchPrivacyConsentView()
        privacyConsentView = consent
        consent.onAgree = { [weak self] in
            Defaults[\.didAgreeLaunchPrivacy] = true
            self?.privacyConsentView?.removeFromSuperview()
            self?.privacyConsentView = nil
            self?.proceedAfterPrivacyAgreed()
        }
        consent.onDisagree = { [weak self] in
            self?.handlePrivacyDisagree()
        }
        consent.onOpenURL = { [weak self] url in
            self?.openPrivacyWeb(url)
        }
        consent.show(in: view)
    }

    private func handlePrivacyDisagree() {
        let alert = UIAlertController(
            title: "需同意协议后才能使用",
            message: "若不同意服务协议及隐私政策，将无法进入极速定位。",
            preferredStyle: .alert
        )
        alert.addAction(UIAlertAction(title: "退出应用", style: .destructive) { _ in
            exit(0)
        })
        alert.addAction(UIAlertAction(title: "返回", style: .cancel))
        present(alert, animated: true)
    }

    private func openPrivacyWeb(_ url: String) {
        let vc = WebViewController(url: url, isShare: false, fullscreen: false, style: "default")
        let nav = UINavigationController(rootViewController: vc)
        nav.modalPresentationStyle = .fullScreen
        present(nav, animated: true)
    }
    
    /// 获取用户配置
    func getUserConfig() {
        SystemService.userConfig().subscribe(onNext: { response in
            guard let model = response.model else { return }
            MQTTService.shared.connect()
            Defaults[\.loginToken] = model.token
            RelationStore.shared.preload()
            if #available(iOS 16.0, *) {
                AppRestrictManager.shared.checkScreenTimePermissionAfterLogin()
            }

            AppContextManager.shared.systemConfig = model.config

            if let upgrade = AppContextManager.shared.systemConfig?.versionUpgradeModel {
                self.showVersionUpgrade(upgrade, model: model)
                return
            }
            self.continueAfterConfig(model: model)
        }, onError: { [weak self] (error) in
            DLAlert.show(title: error.localizedDescription,
                         defaultTitle: "重试") { [weak self] in
                guard let this = self else { return }
                this.getUserConfig()
            }
        }).disposed(by: disposeBag)
    }
    
    private func continueAfterConfig(model: UserConfigModel) {
        AppDelegate.shared.showMainViewController()
    }
    
    private func showVersionUpgrade(_ upgrade: VersionUpgradeModel, model: UserConfigModel) {
        showVersionUpgradePop(upgrade: upgrade) { [weak self] in
            self?.continueAfterConfig(model: model)
        }
    }
    
    // MARK: - Init
    init() {
        super.init(nibName: nil, bundle: nil)
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    lazy var launchLogoView: UIImageView = {
        let view = UIImageView()
        view.image = UIImage(named: "Launch/logo")
        view.backgroundColor = .clear
        view.contentMode = .scaleAspectFill
        return view
    }()
    
    lazy var tipsImgView: UIImageView = {
        let view = UIImageView()
        view.image = UIImage(named: "Launch/slogan")
        view.backgroundColor = .clear
        view.contentMode = .scaleAspectFill
        return view
    }()
}

extension LaunchViewController {
    private func setupLayout() {
        view.addSubview(launchLogoView)
        view.addSubview(tipsImgView)
        
        launchLogoView.layoutChain
            .centerX()
            .centerY()
        
        tipsImgView.layoutChain
            .centerX()
            .bottom(kSafeBottomMargin + 50)
    }
}