// Isolated browser QA server. Never opens or changes the user's database.
import { sendDueReminders } from "../src/reminders/worker";
import type { DiscordFetch } from "../src/sharing/routes";
import { fixture } from "../src/habits/test-fixture";
import { createApi } from "../src/api";
import index from "../src/index.html";

const f = fixture();
const origin = "http://127.0.0.1:3107";
const previewCookie = "minabot_dashboard_preview_session";
const sharingPreview = process.env.SHARE_PREVIEW === "1";
let sharedImage: Blob | null = null;
let reminderMessage: string | null = null;
const previewDiscord: DiscordFetch = async (url, init) => {
  if (url.endsWith("/users/@me/channels")) return Response.json({ id: "523456789012345678" });
  if (init?.method === "POST") {
    if (init.body instanceof FormData) sharedImage = init.body.get("files[0]") as Blob;
    else reminderMessage = JSON.parse(String(init.body)).content;
    return Response.json({ id: "423456789012345678" });
  }
  return Response.json({ type: 0, id: "223456789012345678", guild_id: "323456789012345678", name: "preview-only" });
};
if (sharingPreview) {
  f.setTime("2026-08-01T12:00:00Z");
  const reading = await f.json("/habits", "POST", { name: "A few pages, every day", method: "count", target: 10, unit: "pages", color: "#90647e" }, 201);
  const walking = await f.json("/habits", "POST", { name: "An afternoon walk", method: "manual", schedule: { type: "weekdays", days: [1, 3, 5] }, color: "#397f76" }, 201);
  for (let i = 0; i < 35; i++) {
    const date = new Date(Date.UTC(2026, 7, 1 + i)).toISOString().slice(0, 10);
    f.setTime(`${date}T12:00:00Z`);
    if (i % 4 !== 0) await f.json(`/habits/${reading.id}/days/${date}/progress`, "PUT", { count: i % 3 === 0 ? 5 : 10 });
    if ([1, 3, 5].includes(new Date(`${date}T12:00:00Z`).getUTCDay()) && i % 4 !== 0) await f.json(`/habits/${walking.id}/days/${date}/progress`, "PUT", { done: true });
  }
}
const app = createApi(
  f.db,
  {
    origin,
    clientId: "",
    clientSecret: "",
    cookieSecret: "preview-only-secret-at-least-32-characters",
  },
  undefined,
  () => Date.parse("2026-09-04T12:00:00Z"),
  sharingPreview ? previewDiscord : undefined,
  sharingPreview ? { token: "preview-bot-token", channelId: "223456789012345678" } : undefined,
);
let reminderRunning = false;
if (sharingPreview) setInterval(async () => {
  if (reminderRunning) return; reminderRunning = true;
  try { await sendDueReminders(f.db, { token: "preview-bot-token", origin }, previewDiscord, () => Date.parse("2026-09-04T12:00:00Z")); }
  finally { reminderRunning = false; }
}, 1000).unref();
const server = Bun.serve({
  hostname: "127.0.0.1",
  port: 3107,
  routes: {
    "/__preview/reminder": () => new Response(reminderMessage ?? "No reminder sent"),
    "/__preview/shared-image": () => sharingPreview && sharedImage ? new Response(sharedImage) : new Response(null, { status: 404 }),
    "/__preview/login": () =>
      new Response(null, {
        status: 302,
        headers: {
          Location: "/",
          "Set-Cookie": `${previewCookie}=${"a".repeat(43)}; Path=/; HttpOnly; SameSite=Lax`,
        },
      }),
    "/api/*": async (request) => {
      // Translate only the preview cookie; never use or overwrite a real session.
      const cookie = request.headers
        .get("cookie")
        ?.split(";")
        .map((value) => value.trim())
        .find((value) => value.startsWith(`${previewCookie}=`));
      const headers = new Headers(request.headers);
      headers.set(
        "cookie",
        cookie ? cookie.replace(previewCookie, "minabot_session") : "",
      );
      const response = await app.fetch(new Request(request, { headers }));
      const setCookie = response.headers.get("set-cookie");
      if (setCookie)
        response.headers.set(
          "set-cookie",
          setCookie.replace("minabot_session", previewCookie),
        );
      return response;
    },
    "/*": index,
  },
  development: true,
});
console.log(`Disposable dashboard preview: ${server.url}__preview/login`);