import { NextRequest, NextResponse } from "next/server";
import { DeliveryKind, DeliveryStatus } from "@prisma/client";
import { toErrorResponse } from "@/lib/render-pipeline/errors";
import { requirePipelineUser, requirePipelineAdmin } from "@/lib/render-pipeline/session-auth";
import {
  createDeliveryPackage,
  createDeliverySchema,
  listDeliveryPackages,
} from "@/lib/render-pipeline/deliveries";

// ── GET /api/deliveries (E17) · POST /api/deliveries (E16) ───────────────────

export async function GET(req: NextRequest) {
  try {
    await requirePipelineUser();
    const { searchParams } = new URL(req.url);
    const status = searchParams.get("status");
    const kind = searchParams.get("kind");
    const result = await listDeliveryPackages({
      projectId: searchParams.get("projectId") ?? undefined,
      episode: searchParams.get("episode") ?? undefined,
      status: status ? (status as DeliveryStatus) : undefined,
      kind: kind ? (kind as DeliveryKind) : undefined,
    });
    return NextResponse.json(result);
  } catch (err) {
    const { body, status } = toErrorResponse(err);
    return NextResponse.json(body, { status });
  }
}

export async function POST(req: NextRequest) {
  try {
    // Building a package writes to the delivery volume and locks versions —
    // producer/supervisor territory, not any signed-in user.
    const user = await requirePipelineAdmin();

    let raw: unknown;
    try {
      raw = await req.json();
    } catch {
      return NextResponse.json({ error: "Invalid JSON" }, { status: 400 });
    }

    const parsed = createDeliverySchema.safeParse(raw);
    if (!parsed.success) {
      return NextResponse.json({ error: "Invalid delivery request", details: parsed.error.issues }, { status: 422 });
    }

    const result = await createDeliveryPackage(parsed.data, user.id);
    return NextResponse.json(result, { status: 201 });
  } catch (err) {
    const { body, status } = toErrorResponse(err);
    return NextResponse.json(body, { status });
  }
}