//
//  AssetsViewControllers.swift
//  suixinkan
//
//  Created by Codex on 2026/6/26.
//

import UIKit

/// 云盘列表页。
final class CloudStorageViewController: ModuleTableViewController {
    private let viewModel = CloudStorageViewModel()

    /// 视图加载完成后的 UI 初始化与数据绑定。
    override func viewDidLoad() {
        title = "云盘"
        navigationItem.rightBarButtonItem = UIBarButtonItem(
            title: "传输",
            style: .plain,
            target: self,
            action: #selector(openTransit)
        )
        super.viewDidLoad()
        wireViewModel(viewModel) { }
    }

    /// table行Count相关逻辑。
    override func tableRowCount() -> Int { viewModel.files.count }

    /// 配置Cell展示内容。
    override func configureCell(_ cell: TitleSubtitleTableViewCell, at indexPath: IndexPath) {
        let file = viewModel.files[indexPath.row]
        cell.configure(title: file.name, subtitle: file.updatedAt, detail: "\(file.fileSize)")
    }

    /// 刷新Content。
    override func reloadContent() async {
        await viewModel.reload(api: services.assetsAPI)
    }

    /// willDisplayTableRow 回调处理。
    override func willDisplayTableRow(at indexPath: IndexPath) {
        guard indexPath.row >= viewModel.files.count - 2 else { return }
        Task { await viewModel.loadMore(api: services.assetsAPI) }
    }

    /// openTransit相关逻辑。
    @objc private func openTransit() {
        navigationController?.pushViewController(CloudStorageTransitViewController(), animated: true)
    }
}

extension CloudStorageViewModel: ViewModelBindable {}

/// 云盘传输记录页。
final class CloudStorageTransitViewController: ModuleTableViewController {
    private let store = CloudTransferStore.shared

    /// 视图加载完成后的 UI 初始化与数据绑定。
    override func viewDidLoad() {
        title = "传输记录"
        super.viewDidLoad()
        store.onChange = { [weak self] in self?.reloadTable() }
    }

    /// table行Count相关逻辑。
    override func tableRowCount() -> Int { store.records.count }

    /// 配置Cell展示内容。
    override func configureCell(_ cell: TitleSubtitleTableViewCell, at indexPath: IndexPath) {
        let record = store.records[indexPath.row]
        cell.configure(title: record.fileName, subtitle: record.message, detail: "\(record.progress)%")
    }

    /// 刷新Content。
    override func reloadContent() async {}
}

/// MediaLibraryKindRoute，业务类型定义。
enum MediaLibraryKindRoute {
    case material
    case sample
}

/// 素材库 / 样片库列表页。
final class MediaLibraryViewController: ModuleTableViewController {
    private let kind: MediaLibraryKindRoute
    private let viewModel: MediaLibraryViewModel

    /// 初始化实例。
    init(kind: MediaLibraryKindRoute = .material) {
        self.kind = kind
        switch kind {
        case .material:
            viewModel = MediaLibraryViewModel(kind: .material)
        case .sample:
            viewModel = MediaLibraryViewModel(kind: .sample)
        }
        super.init(nibName: nil, bundle: nil)
    }

    @available(*, unavailable)
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    /// 视图加载完成后的 UI 初始化与数据绑定。
    override func viewDidLoad() {
        title = kind == .sample ? "样片库" : "素材库"
        navigationItem.rightBarButtonItem = UIBarButtonItem(
            title: "上传",
            style: .plain,
            target: self,
            action: #selector(openUpload)
        )
        super.viewDidLoad()
        wireViewModel(viewModel) { }
    }

    /// table行Count相关逻辑。
    override func tableRowCount() -> Int { viewModel.items.count }

    /// 配置Cell展示内容。
    override func configureCell(_ cell: TitleSubtitleTableViewCell, at indexPath: IndexPath) {
        let item = viewModel.items[indexPath.row]
        cell.configure(title: item.name, subtitle: item.projectName, detail: item.createdAt)
    }

    /// 刷新Content。
    override func reloadContent() async {
        await viewModel.reload(api: services.assetsAPI)
    }

    /// open上传相关逻辑。
    @objc private func openUpload() {
        navigationController?.pushViewController(MediaLibraryUploadViewController(kind: kind), animated: true)
    }
}

extension MediaLibraryViewModel: ViewModelBindable {}

/// 素材 / 样片上传页。
final class MediaLibraryUploadViewController: ModuleTableViewController {
    private let kind: MediaLibraryKindRoute
    private let viewModel = MediaLibraryEditorViewModel()
    private let nameField = UITextField()

    /// 初始化实例。
    init(kind: MediaLibraryKindRoute) {
        self.kind = kind
        super.init(nibName: nil, bundle: nil)
    }

    @available(*, unavailable)
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    /// 视图加载完成后的 UI 初始化与数据绑定。
    override func viewDidLoad() {
        title = kind == .sample ? "上传样片" : "上传素材"
        navigationItem.rightBarButtonItem = UIBarButtonItem(
            title: "提交",
            style: .done,
            target: self,
            action: #selector(submit)
        )
        super.viewDidLoad()
        nameField.placeholder = "素材名称"
        nameField.borderStyle = .roundedRect
        nameField.frame = CGRect(x: 0, y: 0, width: view.bounds.width, height: 52)
        tableView.tableHeaderView = nameField
        wireViewModel(viewModel) { }
    }

    /// table行Count相关逻辑。
    override func tableRowCount() -> Int { viewModel.projects.count }

    /// 配置Cell展示内容。
    override func configureCell(_ cell: TitleSubtitleTableViewCell, at indexPath: IndexPath) {
        let project = viewModel.projects[indexPath.row]
        cell.configure(title: project.name, subtitle: project.statusName)
    }

    /// 刷新Content。
    override func reloadContent() async {
        await viewModel.loadProjects(scenicId: services.currentScenicId, api: services.assetsAPI)
    }

    /// 提交。
    @objc private func submit() {
        viewModel.name = nameField.text ?? ""
        Task {
            let mediaKind: MediaLibraryKind = kind == .sample ? .sample : .material
            let success = await viewModel.submit(
                kind: mediaKind,
                scenicId: services.currentScenicId,
                api: services.assetsAPI,
                uploadService: services.ossUploadService
            )
            if success { navigationController?.popViewController(animated: true) }
        }
    }
}

extension MediaLibraryEditorViewModel: ViewModelBindable {}

/// 相册列表页。
final class AlbumListViewController: ModuleTableViewController {
    private let viewModel = AlbumListViewModel()

    /// 视图加载完成后的 UI 初始化与数据绑定。
    override func viewDidLoad() {
        title = "相册"
        super.viewDidLoad()
        wireViewModel(viewModel) { }
    }

    /// table行Count相关逻辑。
    override func tableRowCount() -> Int { viewModel.folders.count }

    /// 配置Cell展示内容。
    override func configureCell(_ cell: TitleSubtitleTableViewCell, at indexPath: IndexPath) {
        let folder = viewModel.folders[indexPath.row]
        cell.configure(title: folder.name, subtitle: folder.createTime, detail: "\(folder.totalCount) 张")
    }

    /// 刷新Content。
    override func reloadContent() async {
        await viewModel.reload(api: services.assetsAPI, scenicId: services.currentScenicId)
    }
}

extension AlbumListViewModel: ViewModelBindable {}

/// 相册预告页。
final class AlbumTrailerViewController: ModuleTableViewController {
    private let viewModel = AlbumTrailerViewModel()

    /// 视图加载完成后的 UI 初始化与数据绑定。
    override func viewDidLoad() {
        title = "相册预告"
        super.viewDidLoad()
        wireViewModel(viewModel) { }
    }

    /// table行Count相关逻辑。
    override func tableRowCount() -> Int { viewModel.folders.count }

    /// 配置Cell展示内容。
    override func configureCell(_ cell: TitleSubtitleTableViewCell, at indexPath: IndexPath) {
        let folder = viewModel.folders[indexPath.row]
        cell.configure(title: folder.name, subtitle: folder.createTime, detail: "\(folder.totalCount) 张")
    }

    /// 刷新Content。
    override func reloadContent() async {
        await viewModel.loadFolders(api: services.assetsAPI, scenicId: services.currentScenicId)
    }
}

extension AlbumTrailerViewModel: ViewModelBindable {}