//
//  CancelAccountVC.swift
//  QuickLocation
//

import UIKit
import RxSwift
import RxCocoa
#if !targetEnvironment(simulator)
import GeYanSdk
#endif

final class CancelAccountVC: BaseViewController {

    private var rootView: CancelAccountView!
    private let requiredPhrase = "我自愿注销本账号"

    override func loadView() {
        rootView = CancelAccountView(frame: UIScreen.main.bounds)
        view = rootView
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        bind()
    }

    private func bind() {
        rootView.navView.onBackTapped = { [weak self] in
            self?.navigationController?.popViewController(animated: true)
        }

        rootView.checkItems.forEach { item in
            item.checkBtn.rx.tap
                .subscribe(onNext: { [weak self, weak item] in
                    item?.checkBtn.isSelected.toggle()
                    self?.refreshSaveEnabled()
                })
                .disposed(by: disposeBag)
        }

        rootView.confirmInput.rx.text.orEmpty
            .subscribe(onNext: { [weak self] _ in
                self?.refreshSaveEnabled()
            })
            .disposed(by: disposeBag)

        rootView.saveBtn.rx.tap
            .subscribe(onNext: { [weak self] in
                self?.submit()
            })
            .disposed(by: disposeBag)
    }

    private func refreshSaveEnabled() {
        let allChecked = rootView.checkItems.allSatisfy(\.isChecked)
        let phraseOK = rootView.confirmInput.text == requiredPhrase
        rootView.setSaveEnabled(allChecked && phraseOK)
    }

    private func submit() {
        guard rootView.checkItems.allSatisfy(\.isChecked),
              rootView.confirmInput.text == requiredPhrase else { return }
        DLToast.showLoading()
        UserService.deleteAccount().subscribe(onNext: { [weak self] _ in
            DLToast.dismiss()
            self?.showSuccessToast {
                NotificationCenter.default.post(name: .invalidatePopupQueue, object: nil)
                #if !targetEnvironment(simulator)
                GeYanSdk.deletePreResultCache()
                #endif
                AppContextManager.shared.deleteAccount()
                GroupIMService.shared.logout()
                AppDelegate.shared.showMainViewController()
            }
        }, onError: { _ in }).disposed(by: disposeBag)
    }

    private func showSuccessToast(completion: @escaping () -> Void) {
        let toast = UIView()
        toast.backgroundColor = UIColor.black.withAlphaComponent(0.75)
        toast.layer.cornerRadius = 12
        view.addSubview(toast)
        toast.layoutChain.center().width(120).height(120)

        let icon = UIImageView(image: UIImage(systemName: "checkmark.circle"))
        icon.tintColor = .white
        icon.contentMode = .scaleAspectFit
        toast.addSubview(icon)
        icon.layoutChain.top(28).centerX().width(36).height(36)

        let lab = UILabel()
        lab.text = "注销成功"
        lab.textColor = .white
        lab.font = .systemFont(ofSize: 14, weight: .medium)
        lab.textAlignment = .center
        toast.addSubview(lab)
        lab.layoutChain.topToBottomOfView(icon, offset: 12).edgesHorzontal(8)

        DispatchQueue.main.asyncAfter(deadline: .now() + 1.2) {
            toast.removeFromSuperview()
            completion()
        }
    }
}