import Foundation

public struct Artist: Identifiable, Hashable, Codable, Sendable {
    public let id: EntityID
    public var name: String
    public var sortName: String
    public var artwork: EntityID?
    public var albumCount: Int

    public init(id: EntityID, name: String, sortName: String? = nil, artwork: EntityID? = nil, albumCount: Int = 0) {
        self.id = id
        self.name = name
        self.sortName = sortName ?? name
        self.artwork = artwork
        self.albumCount = albumCount
    }
}

public struct Album: Identifiable, Hashable, Codable, Sendable {
    public let id: EntityID
    public var title: String
    public var artistID: EntityID?
    public var artistName: String
    public var year: Int?
    public var genre: String?
    public var artwork: EntityID?
    public var trackCount: Int
    public var duration: TimeInterval
    public var addedAt: Date
    public var bestFormat: AudioFormat?

    public init(
        id: EntityID,
        title: String,
        artistID: EntityID?,
        artistName: String,
        year: Int? = nil,
        genre: String? = nil,
        artwork: EntityID? = nil,
        trackCount: Int = 0,
        duration: TimeInterval = 0,
        addedAt: Date = .distantPast,
        bestFormat: AudioFormat? = nil
    ) {
        self.id = id
        self.title = title
        self.artistID = artistID
        self.artistName = artistName
        self.year = year
        self.genre = genre
        self.artwork = artwork
        self.trackCount = trackCount
        self.duration = duration
        self.addedAt = addedAt
        self.bestFormat = bestFormat
    }
}

public struct Track: Identifiable, Hashable, Codable, Sendable {
    public let id: EntityID
    public var title: String
    public var albumID: EntityID?
    public var albumTitle: String
    public var artistID: EntityID?
    public var artistName: String
    public var discNumber: Int
    public var trackNumber: Int
    public var duration: TimeInterval
    public var year: Int?
    public var genre: String?
    public var artwork: EntityID?
    public var isExplicit: Bool
    public var contentHash: Data?
    public var formats: [AudioFormat]

    public init(
        id: EntityID,
        title: String,
        albumID: EntityID?,
        albumTitle: String,
        artistID: EntityID?,
        artistName: String,
        discNumber: Int = 1,
        trackNumber: Int = 0,
        duration: TimeInterval,
        year: Int? = nil,
        genre: String? = nil,
        artwork: EntityID? = nil,
        isExplicit: Bool = false,
        contentHash: Data? = nil,
        formats: [AudioFormat] = []
    ) {
        self.id = id
        self.title = title
        self.albumID = albumID
        self.albumTitle = albumTitle
        self.artistID = artistID
        self.artistName = artistName
        self.discNumber = discNumber
        self.trackNumber = trackNumber
        self.duration = duration
        self.year = year
        self.genre = genre
        self.artwork = artwork
        self.isExplicit = isExplicit
        self.contentHash = contentHash
        self.formats = formats
    }
}

public struct Playlist: Identifiable, Hashable, Codable, Sendable {
    public let id: EntityID
    public var name: String
    public var summary: String
    public var artwork: EntityID?
    public var trackCount: Int
    public var duration: TimeInterval
    public var updatedAt: Date

    public init(
        id: EntityID,
        name: String,
        summary: String = "",
        artwork: EntityID? = nil,
        trackCount: Int = 0,
        duration: TimeInterval = 0,
        updatedAt: Date = .distantPast
    ) {
        self.id = id
        self.name = name
        self.summary = summary
        self.artwork = artwork
        self.trackCount = trackCount
        self.duration = duration
        self.updatedAt = updatedAt
    }
}

public struct PlaylistEntry: Identifiable, Hashable, Codable, Sendable {
    public let id: String
    public let track: EntityID

    public init(id: String, track: EntityID) {
        self.id = id
        self.track = track
    }
}

public struct RadioStation: Identifiable, Hashable, Codable, Sendable {
    public let id: EntityID
    public var name: String
    public var tagline: String
    public var streamURL: URL
    public var artwork: EntityID?

    public init(id: EntityID, name: String, tagline: String = "", streamURL: URL, artwork: EntityID? = nil) {
        self.id = id
        self.name = name
        self.tagline = tagline
        self.streamURL = streamURL
        self.artwork = artwork
    }
}

public struct Genre: Identifiable, Hashable, Sendable {
    public var id: String {
        name
    }

    public let name: String
    public let albumCount: Int

    public init(name: String, albumCount: Int) {
        self.name = name
        self.albumCount = albumCount
    }
}