/// 任务状态/上传域错误码 → 本地化文案（P3 计划 Task 9）。
///
/// 队列/连拍页专用扩展：契约错误码复用 core/error_l10n 的映射，此处
/// 补齐上传域客户端伪码（准备阶段 [PrepErrorCodes]、引擎源缺失伪码）
/// 与队列高频契约码（ALBUM_UPLOAD_DISABLED 等）。
library;

import '../../core/error_codes.dart';
import '../../core/error_l10n.dart';
import '../../l10n/app_localizations.dart';
import 'preparer.dart';
import 'task_state.dart';
import 'upload_engine.dart';

extension AppLocalizationsUploadX on AppLocalizations {
  /// 任务状态标签（chip/文案）。
  String labelForTaskState(UploadTaskState state) => switch (state) {
    UploadTaskState.preparing => taskStatePreparing,
    UploadTaskState.preparationFailed => taskStatePreparationFailed,
    UploadTaskState.queued => taskStateQueued,
    UploadTaskState.uploading => taskStateUploading,
    UploadTaskState.uploadedConfirming => taskStateUploadedConfirming,
    UploadTaskState.completed => taskStateCompleted,
    UploadTaskState.waitingNetwork => taskStateWaitingNetwork,
    UploadTaskState.retryableFailed => taskStateRetryableFailed,
    UploadTaskState.cancelled => taskStateCancelled,
  };

  /// 任务 lastError → 展示文案（上传域伪码 + 契约码；未映射回退
  /// error_l10n 的通用解析）。
  String messageForTaskError(String code) {
    switch (code) {
      case PrepErrorCodes.sourceUnreadable:
        return errorPrepSourceUnreadable;
      case PrepErrorCodes.unsupportedType:
        return errorPrepUnsupportedType;
      case PrepErrorCodes.tooLarge:
        return errorPrepTooLarge;
      case PrepErrorCodes.copyFailed:
        return errorPrepCopyFailed;
      case UploadEngine.sourceMissingCode:
        return errorUploadSourceMissing;
      case ErrorCodes.albumUploadDisabled:
        return errorAlbumUploadDisabled;
      case ErrorCodes.uploadSessionConflict:
        return errorUploadSessionConflict;
      case ErrorCodes.uploadVerifyFailed:
        return errorUploadVerifyFailed;
      default:
        return messageForErrorCode(code);
    }
  }
}