import Foundation
import CoreGraphics

struct DeviceCodeResponse: Decodable {
    let code: String
    let expiresAt: String?
    let pollIntervalSeconds: Int?
    let linkUrl: String?
    let qrPayload: String?
}

enum PollResult {
    case pending
    case expired
    case alreadyLinked
    case linked(refreshToken: String, viewerName: String)
}

struct HomePayload: Decodable {
    let continueWatching: [MediaItem]
    let spotlight: [MediaItem]?
    let shelves: [ShelfRow]
    let favorites: [MediaItem]?
}

struct ShelfRow: Decodable, Identifiable {
    let id: String
    let title: String
    let name: String?
    let kind: String?
    let slug: String?
    let items: [MediaItem]
}

struct MediaItem: Codable, Identifiable, Hashable {
    let type: String
    let id: String
    let title: String
    let subtitle: String?
    let year: Int?
    let posterUrl: String?
    let backdropUrl: String?
    let logoUrl: String?
    let mediaFileId: String?
    let seriesId: String?
    let positionMs: Int64?
    let durationMs: Int64?
    let progressId: String?
    let badge: String?
}

struct PlayResult: Decodable {
    let streamUrl: String
    let sessionId: String?
    let mediaFileId: String?
    let defaultSubtitle: DefaultSubtitle?
}

struct DefaultSubtitle: Decodable {
    let fileId: Int?
    let source: String?
    let language: String?
    let fileName: String?
    let format: String?
    let contentBase64: String
    let label: String?
}

struct ViewerProfile: Decodable, Identifiable, Hashable {
    let id: String
    let name: String
    let avatarId: String?
    let isOwner: Bool?
    let isKids: Bool?
    let hasPin: Bool?
    let showAvatar: Bool?
    let hasCustomAvatar: Bool?
    let avatarUrl: String?

    var showsAvatar: Bool { showAvatar ?? true }
    var hasCustomPhoto: Bool { hasCustomAvatar == true }
}

struct ProfilesPayload: Decodable {
    let profiles: [ViewerProfile]
    let activeProfileId: String?
    let canManage: Bool?
}

struct ClientMe: Decodable {
    struct Iptv: Decodable { let enabled: Bool? }
    let iptv: Iptv?
    let profile: ViewerProfile?
    let deviceId: String?

    var iptvEnabled: Bool { iptv?.enabled == true }
}

struct LinkedDevice: Decodable, Identifiable, Hashable {
    let id: String
    let name: String
    let platform: String?
    let lastSeenAt: String?
    let createdAt: String?
    let current: Bool?
}

struct DevicesPayload: Decodable {
    let devices: [LinkedDevice]
}

struct ApproveDeviceResult: Decodable {
    let ok: Bool?
    let deviceName: String?
    let platform: String?
}

struct MediaFileInfo: Decodable, Identifiable, Hashable {
    let id: String
    let label: String?
    let resolution: String?
    let videoCodec: String?
    let audioCodec: String?
    let hdrType: String?
    let nodeOnline: Bool?
    let nodeName: String?
}

struct MovieDetail: Decodable {
    let id: String
    let title: String
    let overview: String?
    let year: Int?
    let posterUrl: String?
    let backdropUrl: String?
    let logoUrl: String?
    let runtime: Int?
    let genres: [String]?
    let rating: String?
    let cast: [String]?
    let director: [String]?
    let mediaFiles: [MediaFileInfo]?

    var preferredMediaFileId: String? {
        mediaFiles?.first(where: { $0.nodeOnline != false })?.id ?? mediaFiles?.first?.id
    }
}

struct SeriesDetail: Decodable {
    let id: String
    let title: String
    let overview: String?
    let year: Int?
    let posterUrl: String?
    let backdropUrl: String?
    let logoUrl: String?
    let genres: [String]?
    let rating: String?
    let cast: [String]?
    let director: [String]?
    let seasons: [Season]?
}

struct Season: Decodable, Identifiable {
    var id: Int { seasonNumber }
    let seasonNumber: Int
    let episodes: [Episode]?
}

struct Episode: Decodable, Identifiable {
    let id: String
    let title: String?
    let episodeNumber: Int?
    let seasonNumber: Int?
    let overview: String?
    let stillUrl: String?
    let mediaFileId: String?
    let available: Bool?
    let runtime: Int?
    let completed: Bool?
    let positionMs: Int64?
    let durationMs: Int64?

    var progressFraction: CGFloat {
        if completed == true { return 1 }
        guard let dur = durationMs, dur > 0, let pos = positionMs else { return 0 }
        return CGFloat(pos) / CGFloat(dur)
    }

    var resumeMs: Int64 {
        if completed == true { return 0 }
        return max(0, positionMs ?? 0)
    }
}

struct NextEpisode: Decodable, Identifiable, Hashable {
    let id: String
    let seriesId: String
    let seasonNumber: Int?
    let episodeNumber: Int?
    let title: String?
    let seriesTitle: String?
    let subtitle: String?
    let mediaFileId: String
    let posterUrl: String?
}

struct SearchPayload: Decodable {
    let results: [MediaItem]
}

struct BrowsePayload: Decodable {
    let id: String?
    let title: String?
    let kind: String?
    let total: Int?
    let offset: Int?
    let items: [MediaItem]
}

struct SubtitleHit: Decodable, Identifiable, Hashable {
    var id: String { "\(source ?? "x")-\(fileId)" }
    let fileId: Int
    let language: String?
    let release: String?
    let fileName: String?
    let downloadCount: Int?
    let hearingImpaired: Bool?
    let source: String?
    let uploader: String?
}

struct SubtitleSearchResult: Decodable {
    let configured: Bool?
    let imdbId: String?
    let title: String?
    let results: [SubtitleHit]
}

struct FetchedSubtitle: Decodable {
    let fileId: Int?
    let source: String?
    let fileName: String?
    let format: String?
    let contentBase64: String
}

struct IptvCategory: Decodable, Identifiable, Hashable {
    let id: String
    let name: String
    let channelCount: Int?
}

struct IptvChannel: Decodable, Identifiable, Hashable {
    var id: Int { streamId }
    let streamId: Int
    let name: String
    let logoUrl: String?
    let number: Int?
    let categoryId: String?
    let nowTitle: String?
    let nextTitle: String?
}

struct IptvPlayInfo: Decodable {
    let streamId: Int
    let name: String
    let logoUrl: String?
    let streamUrl: String
    let format: String?
    let fallbackStreamUrl: String?
    let fallbackFormat: String?
}

struct EpgProgram: Decodable, Hashable {
    let title: String
    let start: String?
    let end: String?

    private static func parseISO(_ raw: String?) -> Date? {
        guard let raw, !raw.isEmpty else { return nil }
        if let d = ISO8601DateFormatter.vmcFractional.date(from: raw) { return d }
        return ISO8601DateFormatter.vmcBasic.date(from: raw)
    }

    var progress: CGFloat {
        guard let s = Self.parseISO(start), let e = Self.parseISO(end) else { return 0 }
        let total = e.timeIntervalSince(s)
        guard total > 0 else { return 0 }
        return CGFloat(min(1, max(0, Date().timeIntervalSince(s) / total)))
    }

    var timeRangeLabel: String? {
        guard let s = Self.parseISO(start), let e = Self.parseISO(end) else { return nil }
        let f = DateFormatter()
        f.locale = Locale(identifier: "nl_NL")
        f.dateFormat = "HH:mm"
        return "\(f.string(from: s)) – \(f.string(from: e))"
    }
}

struct IptvEpg: Decodable, Hashable {
    let streamId: Int
    let channelName: String
    let logoUrl: String?
    let now: EpgProgram?
    let next: EpgProgram?
}

extension ISO8601DateFormatter {
    static let vmcFractional: ISO8601DateFormatter = {
        let f = ISO8601DateFormatter()
        f.formatOptions = [.withInternetDateTime, .withFractionalSeconds]
        return f
    }()

    static let vmcBasic: ISO8601DateFormatter = {
        let f = ISO8601DateFormatter()
        f.formatOptions = [.withInternetDateTime]
        return f
    }()
}

struct ShelfPref: Codable, Identifiable, Hashable {
    var id: String { shelfId }
    let shelfId: String
    let name: String
    let slug: String?
    let kind: String?
    var visible: Bool
    var sortOrder: Int
}

struct FavoriteToggleResult: Decodable {
    let favorited: Bool
    let items: [MediaItem]?
}

struct ApiErrorBody: Decodable {
    struct ErrorObj: Decodable { let message: String? }
    let error: ErrorObj?
}

struct PlayerTrack: Identifiable, Hashable {
    let id: Int32
    let name: String
}