import type Database from "bun:sqlite";

import type { RuntimeMode } from "../../../shared/api";
import type { Logger } from "../../logger";

import { listMaterials } from "../../db/materials";
import { createApiError, jsonResponse, parseIdFromUrl } from "../../helpers";
import { validateIdParam, validatePagination } from "../../middleware";

export function handleListMaterials(req: Request, db: Database, mode: RuntimeMode, _logger: Logger): Response {
  const url = new URL(req.url);
  const projectIdStr = parseIdFromUrl(url);

  const validated = validateIdParam(projectIdStr ?? "", mode);
  if (validated instanceof Response) return validated;

  const pageParam = url.searchParams.get("page");
  const pageSizeParam = url.searchParams.get("pageSize");
  const statusParam = url.searchParams.get("status");

  const pagination = validatePagination(pageParam, pageSizeParam, mode);
  if (pagination instanceof Response) return pagination;

  const ALLOWED_STATUSES = ["pending", "processing", "review", "approved", "discarded", "failed"] as const;
  if (statusParam && !(ALLOWED_STATUSES as readonly string[]).includes(statusParam)) {
    return jsonResponse(createApiError("Invalid status parameter", 400), { mode, status: 400 });
  }

  const result = listMaterials(db, validated.id, {
    page: pagination.page,
    pageSize: pagination.pageSize,
    status: (statusParam as (typeof ALLOWED_STATUSES)[number]) ?? undefined,
  });

  return jsonResponse(result, { mode });
}