import { listGenerationJobsFiltered } from "@/lib/server/data-store";
import { jsonOk, readJsonBody } from "@/lib/server/api";
import { authenticatePublicApiRequest } from "@/lib/server/public-api-auth";
import { createPublicGenerationJob, type PublicJobCreateBody } from "@/lib/server/public-api-jobs";
import { publicApiError } from "@/lib/server/public-api-response";
import { DEFAULT_OWNER_ID, requestOrigin } from "@/lib/server/runtime";
import type { GenerationCapability, GenerationStatus } from "@/lib/types";

export const runtime = "nodejs";

export async function GET(request: Request) {
  try {
    const client = authenticatePublicApiRequest(request);
    const url = new URL(request.url);
    const jobs = await listGenerationJobsFiltered({
      ownerId: DEFAULT_OWNER_ID,
      externalClientId: client.id,
      status: parseStatus(url.searchParams.get("status")),
      capability: parseCapability(url.searchParams.get("capability")),
      limit: parseLimit(url.searchParams.get("limit")),
      before: url.searchParams.get("before") || undefined
    });
    return jsonOk({ jobs });
  } catch (error) {
    return publicApiError(error);
  }
}

export async function POST(request: Request) {
  try {
    const client = authenticatePublicApiRequest(request);
    const body = await readJsonBody<PublicJobCreateBody>(request);
    const result = await createPublicGenerationJob({
      client,
      body,
      request,
      origin: requestOrigin(request)
    });
    return jsonOk({ job: result.job, reused: result.reused }, { status: result.reused ? 200 : 202 });
  } catch (error) {
    return publicApiError(error);
  }
}

function parseStatus(value: string | null): GenerationStatus | undefined {
  if (!value) return undefined;
  if (["queued", "running", "succeeded", "failed", "expired", "cancelled"].includes(value)) {
    return value as GenerationStatus;
  }
  throw new Error(`Unsupported status filter: ${value}`);
}

function parseCapability(value: string | null): GenerationCapability | undefined {
  if (!value) return undefined;
  if (["image.generate", "image.inpaint", "image.upscale", "video.generate"].includes(value)) {
    return value as GenerationCapability;
  }
  throw new Error(`Unsupported capability filter: ${value}`);
}

function parseLimit(value: string | null): number {
  const parsed = Number(value || 50);
  if (!Number.isFinite(parsed)) return 50;
  return Math.max(1, Math.min(200, Math.trunc(parsed)));
}