import { NextRequest, NextResponse } from "next/server";
import { apiRoute } from "../../../../lib/server/apiRoute";
import { isDatabaseConfigured } from "../../../../lib/server/env";
import { prisma } from "../../../../lib/server/db";
import { dbUnavailable, notFound, unauthorized } from "../../../../lib/server/responses";
import { isWorkshopInquiryAdmin } from "../../../../lib/server/workshopInquiryAdmin";

function csvCell(value: string): string {
  if (/[",\n]/.test(value)) return `"${value.replace(/"/g, '""')}"`;
  return value;
}

export const GET = apiRoute("workshop-inquiries.export", async (_request: NextRequest) => {
  if (!(await isWorkshopInquiryAdmin())) {
    return process.env.WORKSHOP_INQUIRY_ADMIN_TOKEN?.trim()
      ? unauthorized()
      : notFound();
  }
  if (!isDatabaseConfigured()) return dbUnavailable();

  const rows = await prisma.workshopInquiry.findMany({
    orderBy: { createdAt: "desc" },
  });

  const header = [
    "id",
    "createdAt",
    "organizationName",
    "organizationKind",
    "memberCount",
    "largeOrganization",
    "routeSuggestion",
    "contactName",
    "email",
    "role",
    "challenges",
    "challengeOther",
    "unspokenQuestion",
    "sourcePage",
    "sourceUrl",
  ];

  const lines = [header.join(",")];
  for (const row of rows) {
    lines.push(
      [
        row.id,
        row.createdAt.toISOString(),
        row.organizationName,
        row.organizationKind,
        row.memberCount,
        row.largeOrganization ? "yes" : "no",
        row.routeSuggestion,
        row.contactName,
        row.email,
        row.role ?? "",
        row.challenges.join("; "),
        row.challengeOther ?? "",
        row.unspokenQuestion ?? "",
        row.sourcePage,
        row.sourceUrl ?? "",
      ]
        .map((cell) => csvCell(String(cell)))
        .join(","),
    );
  }

  return new NextResponse(lines.join("\n"), {
    status: 200,
    headers: {
      "content-type": "text/csv; charset=utf-8",
      "content-disposition": "attachment; filename=\"workshop-inquiries.csv\"",
    },
  });
});