export type FalImageEditTaskStatus = "queued" | "running" | "completed" | "failed";

export interface FalImageEditTaskMetadata {
  taskKind: "fal_gpt_image_2_edit";
  provider: "fal-image";
  providerId: string;
  endpointId: string;
  requestId: string;
  modelId: string;
  modelRef: string;
  modelDisplayName: string;
  prompt: string;
  optimizedPrompt?: string;
  userPrompt?: string;
  requestedImageCount: number;
  aspectRatio?: string;
  imageSize?: string;
  outputSizeLabel: string;
  sourceImageUrls: string[];
  sourceAssetIds?: string[];
  relationType?: "generated_from" | "edited_from";
  sourceType?: string;
  projectId?: string | null;
  contextSource?: string | null;
  status: FalImageEditTaskStatus;
  startedAt: number;
  updatedAt: number;
  queuePosition?: number | null;
  lastLogs?: Array<{
    message?: string;
    level?: string;
    timestamp?: string;
  }>;
  error?: string | null;
}

export function isFalImageEditTaskMetadata(
  value: unknown,
): value is FalImageEditTaskMetadata {
  if (!value || typeof value !== "object") return false;
  const maybe = value as Record<string, unknown>;
  return (
    maybe.taskKind === "fal_gpt_image_2_edit" &&
    maybe.provider === "fal-image" &&
    typeof maybe.providerId === "string" &&
    typeof maybe.endpointId === "string" &&
    typeof maybe.requestId === "string"
  );
}

export function isPendingFalImageEditTaskMetadata(
  value: unknown,
): value is FalImageEditTaskMetadata {
  return (
    isFalImageEditTaskMetadata(value) &&
    (value.status === "queued" || value.status === "running")
  );
}