//
//  TravelAlbumModels.swift
//  suixinkan
//
//  Created by Codex on 2026/6/29.
//

import Foundation

/// 旅拍相册用户摘要。
struct TravelAlbumUser: Decodable, Equatable, Hashable {
    let id: Int
    let phone: String

    enum CodingKeys: String, CodingKey {
        case id, phone
    }

    init(id: Int = 0, phone: String = "") {
        self.id = id
        self.phone = phone
    }

    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        id = container.lossyInt(forKey: .id)
        phone = container.lossyString(forKey: .phone)
    }
}

/// 旅拍相册任务实体。
struct TravelAlbumItem: Decodable, Identifiable, Equatable, Hashable {
    let id: Int
    let storeUserId: Int
    let name: String
    /// 1 先拍后买，2 先买后拍
    let type: Int
    let orderNumber: String
    let materialNum: Int
    let materialPrice: Int
    let materialPackagePrice: Int
    let photoPrice: Int
    let coverURL: String
    let userId: Int
    let status: Int
    let createdAt: String
    let updatedAt: String
    let user: TravelAlbumUser?

    enum CodingKeys: String, CodingKey {
        case id
        case storeUserId = "store_user_id"
        case name, type
        case orderNumber = "order_number"
        case materialNum = "material_num"
        case materialPrice = "material_price"
        case materialPackagePrice = "material_package_price"
        case photoPrice = "photo_price"
        case coverURL = "cover_url"
        case userId = "user_id"
        case status
        case createdAt = "created_at"
        case updatedAt = "updated_at"
        case user
    }

    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        id = container.lossyInt(forKey: .id)
        storeUserId = container.lossyInt(forKey: .storeUserId)
        name = container.lossyString(forKey: .name)
        type = container.lossyInt(forKey: .type)
        orderNumber = container.lossyString(forKey: .orderNumber)
        materialNum = container.lossyInt(forKey: .materialNum)
        materialPrice = container.lossyInt(forKey: .materialPrice)
        materialPackagePrice = container.lossyInt(forKey: .materialPackagePrice)
        photoPrice = container.lossyInt(forKey: .photoPrice)
        coverURL = container.lossyString(forKey: .coverURL)
        userId = container.lossyInt(forKey: .userId)
        status = container.lossyInt(forKey: .status)
        createdAt = container.lossyString(forKey: .createdAt)
        updatedAt = container.lossyString(forKey: .updatedAt)
        user = try? container.decodeIfPresent(TravelAlbumUser.self, forKey: .user)
    }

    var displayPhone: String {
        user?.phone ?? ""
    }
}

/// 可绑定订单实体（买了再拍）。
struct TravelAlbumAvailableOrder: Decodable, Identifiable, Equatable, Hashable {
    let projectName: String
    let orderNumber: String
    let userPhone: String
    let userId: Int

    var id: String { orderNumber }

    enum CodingKeys: String, CodingKey {
        case projectName = "project_name"
        case orderNumber = "order_number"
        case userPhone = "user_phone"
        case userId = "user_id"
    }

    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        projectName = container.lossyString(forKey: .projectName)
        orderNumber = container.lossyString(forKey: .orderNumber)
        userPhone = container.lossyString(forKey: .userPhone)
        userId = container.lossyInt(forKey: .userId)
    }
}

/// 旅拍相册素材实体。
struct TravelAlbumMaterial: Decodable, Identifiable, Equatable {
    let id: Int
    let userEquityTravelId: Int
    let status: Int
    let orderNumber: String
    let userId: Int
    let fileName: String
    let fileType: Int
    let fileURL: String
    let fileSize: Int
    let coverURL: String
    let isPurchased: Bool
    let createdAt: String
    let updatedAt: String

    enum CodingKeys: String, CodingKey {
        case id
        case userEquityTravelId = "user_equity_travel_id"
        case status
        case orderNumber = "order_number"
        case userId = "user_id"
        case fileName = "file_name"
        case fileType = "file_type"
        case fileURL = "file_url"
        case fileSize = "file_size"
        case coverURL = "cover_url"
        case isPurchased = "is_purchased"
        case createdAt = "created_at"
        case updatedAt = "updated_at"
    }

    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        id = container.lossyInt(forKey: .id)
        userEquityTravelId = container.lossyInt(forKey: .userEquityTravelId)
        status = container.lossyInt(forKey: .status)
        orderNumber = container.lossyString(forKey: .orderNumber)
        userId = container.lossyInt(forKey: .userId)
        fileName = container.lossyString(forKey: .fileName)
        fileType = container.lossyInt(forKey: .fileType)
        fileURL = container.lossyString(forKey: .fileURL)
        fileSize = container.lossyInt(forKey: .fileSize)
        coverURL = container.lossyString(forKey: .coverURL)
        isPurchased = container.lossyBool(forKey: .isPurchased)
        createdAt = container.lossyString(forKey: .createdAt)
        updatedAt = container.lossyString(forKey: .updatedAt)
    }
}

/// 创建旅拍相册请求。
struct TravelAlbumCreateRequest: Encodable {
    let name: String
    let type: Int
    let orderNumber: String?
    let materialNum: Int?
    let materialPrice: Double?
    let materialPackagePrice: Double?
    let photoPrice: Double?

    enum CodingKeys: String, CodingKey {
        case name, type
        case orderNumber = "order_number"
        case materialNum = "material_num"
        case materialPrice = "material_price"
        case materialPackagePrice = "material_package_price"
        case photoPrice = "photo_price"
    }
}

/// 创建旅拍相册响应。
struct TravelAlbumCreateResponse: Decodable {
    let id: Int

    init(id: Int) {
        self.id = id
    }

    enum CodingKeys: String, CodingKey {
        case id
    }

    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        id = container.lossyInt(forKey: .id)
    }
}

/// 上传素材登记请求。
struct TravelAlbumUploadMaterialRequest: Encodable {
    let userEquityTravelId: Int
    let fileName: String
    let fileURL: String

    enum CodingKeys: String, CodingKey {
        case userEquityTravelId = "user_equity_travel_id"
        case fileName = "file_name"
        case fileURL = "file_url"
    }
}

/// 删除旅拍相册请求。
struct TravelAlbumDeleteRequest: Encodable {
    let id: Int
}

/// 编辑旅拍相册请求。
struct TravelAlbumEditRequest: Encodable {
    let id: Int
    let name: String?
    let materialPackagePrice: Double?

    enum CodingKeys: String, CodingKey {
        case id, name
        case materialPackagePrice = "material_package_price"
    }
}

/// 删除素材请求。
struct TravelAlbumDeleteMaterialRequest: Encodable {
    let id: Int
}

/// 小程序码响应。
struct TravelAlbumMpCodeResponse: Decodable {
    let mpCodeOssURL: String

    init(mpCodeOssURL: String) {
        self.mpCodeOssURL = mpCodeOssURL
    }

    enum CodingKeys: String, CodingKey {
        case mpCodeOssURL = "mp_code_oss_url"
    }

    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        mpCodeOssURL = container.lossyString(forKey: .mpCodeOssURL)
    }
}

/// 有线传图页导航上下文。
struct WiredTransferContext: Hashable {
    let albumId: Int
    let albumName: String
    let phone: String
    let orderNumber: String
}

/// 有线传图上传状态。
enum WiredTransferUploadStatus: String, Codable, Equatable {
    case uploaded = "UPLOADED"
    case pending = "PENDING"
    case transferring = "TRANSFERRING"
    case uploading = "UPLOADING"
    case failed = "FAILED"

    var displayLabel: String {
        switch self {
        case .uploaded: "已上传"
        case .pending: "待上传"
        case .transferring: "传输中"
        case .uploading: "上传中"
        case .failed: "上传失败"
        }
    }
}

/// 有线传图列表项。
struct WiredTransferPhotoItem: Identifiable, Equatable {
    let id: String
    let sourceId: String
    let fileName: String
    let thumbnailURL: String
    let capturedAt: String
    let fileSizeText: String
    let status: WiredTransferUploadStatus
    let progress: Int
    let errorMessage: String?

    init(
        id: String,
        sourceId: String? = nil,
        fileName: String,
        thumbnailURL: String,
        capturedAt: String,
        fileSizeText: String,
        status: WiredTransferUploadStatus,
        progress: Int = 0,
        errorMessage: String? = nil
    ) {
        self.id = id
        self.sourceId = sourceId ?? id
        self.fileName = fileName
        self.thumbnailURL = thumbnailURL
        self.capturedAt = capturedAt
        self.fileSizeText = fileSizeText
        self.status = status
        self.progress = progress
        self.errorMessage = errorMessage
    }

    var canSelectForSpecifyUpload: Bool {
        status == .pending
    }

    var isNotUploaded: Bool {
        status == .pending || status == .failed
    }
}

/// 有线传图持久化记录。
struct WiredTransferPhotoRecord: Codable, Equatable {
    let id: String
    let sourceId: String
    let fileName: String
    let localPath: String
    let thumbnailPath: String
    let capturedAt: String
    let fileSizeBytes: Int64
    let status: String
    let progress: Int
    let errorMessage: String?
    let albumId: Int
    let userId: String
    let remoteURL: String
    let updatedAt: TimeInterval

    func toPhotoItem() -> WiredTransferPhotoItem {
        let previewPath = [thumbnailPath, localPath, remoteURL]
            .first { path in
                !path.isEmpty && (path.hasPrefix("http") || FileManager.default.fileExists(atPath: path))
            } ?? ""
        let thumbnailURL: String
        if previewPath.hasPrefix("http") {
            thumbnailURL = previewPath
        } else if !previewPath.isEmpty {
            thumbnailURL = "file://\(previewPath)"
        } else {
            thumbnailURL = ""
        }
        return WiredTransferPhotoItem(
            id: id,
            sourceId: sourceId,
            fileName: fileName,
            thumbnailURL: thumbnailURL,
            capturedAt: capturedAt,
            fileSizeText: Self.formatFileSize(fileSizeBytes),
            status: WiredTransferUploadStatus(rawValue: status) ?? .pending,
            progress: progress,
            errorMessage: errorMessage
        )
    }

    static func formatFileSize(_ bytes: Int64) -> String {
        guard bytes > 0 else { return "--" }
        let mb = Double(bytes) / 1024.0 / 1024.0
        if mb >= 1024 {
            return String(format: "%.2f GB", mb / 1024.0)
        }
        return String(format: "%.2f MB", mb)
    }
}

extension WiredTransferPhotoItem {
    /// 转为持久化记录。
    func toRecord(
        albumId: Int,
        userId: String,
        localPath: String,
        thumbnailPath: String = "",
        fileSizeBytes: Int64,
        remoteURL: String = ""
    ) -> WiredTransferPhotoRecord {
        WiredTransferPhotoRecord(
            id: id,
            sourceId: sourceId,
            fileName: fileName,
            localPath: localPath,
            thumbnailPath: thumbnailPath,
            capturedAt: capturedAt,
            fileSizeBytes: fileSizeBytes,
            status: status.rawValue,
            progress: progress,
            errorMessage: errorMessage,
            albumId: albumId,
            userId: userId,
            remoteURL: remoteURL,
            updatedAt: Date().timeIntervalSince1970
        )
    }
}

extension Array where Element == WiredTransferPhotoItem {
    /// 按 Tab 过滤：0 全部，1 已上传，2 失败。
    func filtered(byTabIndex index: Int) -> [WiredTransferPhotoItem] {
        switch index {
        case 1: filter { $0.status == .uploaded }
        case 2: filter { $0.status == .failed }
        default: self
        }
    }

    /// 返回各 Tab 计数。
    var transferTabCounts: [Int] {
        [count, filter { $0.status == .uploaded }.count, filter { $0.status == .failed }.count]
    }

    /// 可指定上传的 photo id 集合。
    var selectablePendingPhotoIDs: Set<String> {
        Set(filter { $0.canSelectForSpecifyUpload }.map(\.id))
    }
}

private extension KeyedDecodingContainer {
    func lossyString(forKey key: Key) -> String {
        if let value = try? decode(String.self, forKey: key) { return value }
        if let value = try? decode(Int.self, forKey: key) { return "\(value)" }
        if let value = try? decode(Double.self, forKey: key) { return "\(value)" }
        return ""
    }

    func lossyInt(forKey key: Key) -> Int {
        if let value = try? decode(Int.self, forKey: key) { return value }
        if let value = try? decode(String.self, forKey: key), let intValue = Int(value) { return intValue }
        if let value = try? decode(Double.self, forKey: key) { return Int(value) }
        return 0
    }

    func lossyBool(forKey key: Key) -> Bool {
        if let value = try? decode(Bool.self, forKey: key) { return value }
        if let value = try? decode(Int.self, forKey: key) { return value != 0 }
        if let value = try? decode(String.self, forKey: key) {
            return value == "1" || value.lowercased() == "true"
        }
        return false
    }
}