//
// Copyright 2019 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
//

import Foundation

// MARK: - MessageStickerDraft

@objc
public class MessageStickerDraft: NSObject {
    @objc
    public let info: StickerInfo

    @objc
    public var packId: Data {
        return info.packId
    }

    @objc
    public var packKey: Data {
        return info.packKey
    }

    @objc
    public var stickerId: UInt32 {
        return info.stickerId
    }

    @objc
    public let stickerData: Data

    @objc
    public let stickerType: StickerType

    @objc
    public let emoji: String?

    @objc
    public init(info: StickerInfo, stickerData: Data, stickerType: StickerType, emoji: String?) {
        self.info = info
        self.stickerData = stickerData
        self.stickerType = stickerType
        self.emoji = emoji
    }
}

// MARK: - MessageSticker

@objc
public class MessageSticker: MTLModel {
    // MTLModel requires default values.
    @objc
    public var info = StickerInfo.defaultValue

    @objc
    public var packId: Data {
        return info.packId
    }

    @objc
    public var packKey: Data {
        return info.packKey
    }

    @objc
    public var stickerId: UInt32 {
        return info.stickerId
    }

    // MTLModel requires default values.
    @objc
    private var attachmentId: String?

    public var legacyAttachmentId: String? {
        return attachmentId?.nilIfEmpty
    }

    @objc
    public var emoji: String?

    private init(info: StickerInfo, legacyAttachmentId: String?, emoji: String?) {
        self.info = info
        self.attachmentId = legacyAttachmentId
        self.emoji = emoji

        super.init()
    }

    public static func withLegacyAttachment(
        info: StickerInfo,
        legacyAttachmentId: String,
        emoji: String?
    ) -> MessageSticker {
        return MessageSticker(info: info, legacyAttachmentId: legacyAttachmentId, emoji: emoji)
    }

    public static func withForeignReferenceAttachment(info: StickerInfo, emoji: String?) -> MessageSticker {
        return MessageSticker(info: info, legacyAttachmentId: nil, emoji: emoji)
    }

    @objc
    public override init() {
        super.init()
    }

    @objc
    public required init!(coder: NSCoder) {
        super.init(coder: coder)
    }

    @objc
    public required init(dictionary dictionaryValue: [String: Any]!) throws {
        try super.init(dictionary: dictionaryValue)
    }

    @objc
    public var isValid: Bool {
        return info.isValid()
    }

    @objc
    public class func isNoStickerError(_ error: Error) -> Bool {
        guard let error = error as? StickerError else {
            return false
        }
        return error == .noSticker
    }
}