// Browser-side mock API for dev-fixture mode.
//
// Wired into the page via `src/mocks/MockWorker.tsx`. Only initialised when
// `BP_DEV_FIXTURE` is set on the server (the env value is forwarded to the
// client via a window global). Production builds never start the worker.
//
// Today's surface is the small set of write paths the design shows. They
// don't persist — every response is synthesised so the same click always
// looks the same. When the real platform endpoints exist, drop the
// matching handler from this file.

import { http, HttpResponse, delay } from "msw";

type InvitePayload = {
  email?: string;
  role?: string;
};

type TestRunPayload = {
  workflowId?: string;
};

// ---- Frozen-tenant guard --------------------------------------------------
// In dev-fixture mode the tenant status is encoded in a cookie or a
// window global; for now we read a hint from a custom header that the
// caller sets, so the same mock handler can respond 402 or 201 depending
// on which fixture is currently active.
function isFrozen(req: Request): boolean {
  return req.headers.get("x-bp-tenant-status") === "frozen";
}
function isArchived(req: Request): boolean {
  return req.headers.get("x-bp-tenant-status") === "archived";
}

function archivedResponse() {
  return HttpResponse.json(
    { error: "tenant_archived", message: "Tenant retention window closed." },
    { status: 410 },
  );
}
function frozenResponse() {
  return HttpResponse.json(
    {
      error: "tenant_frozen",
      message: "Tenant is read-only. Re-activate to resume writes.",
    },
    { status: 402 },
  );
}

export const handlers = [
  // ---- /api/team/invites -------------------------------------------------
  http.post("/api/team/invites", async ({ request }) => {
    if (isArchived(request)) return archivedResponse();
    if (isFrozen(request)) return frozenResponse();
    await delay(280);
    const body = (await request.json().catch(() => ({}))) as InvitePayload;
    if (!body.email || !body.email.includes("@")) {
      return HttpResponse.json({ error: "invalid_email" }, { status: 400 });
    }
    const role = body.role ?? "USER";
    return HttpResponse.json(
      {
        id: "inv-" + Math.random().toString(36).slice(2, 9),
        email: body.email,
        role,
        status: "invited",
        created_at: new Date().toISOString(),
      },
      { status: 201, headers: { "x-bp-status-code": "201 · invite.created" } },
    );
  }),

  // ---- /api/scans -------------------------------------------------------
  http.post("/api/scans", async ({ request }) => {
    if (isArchived(request)) return archivedResponse();
    if (isFrozen(request)) return frozenResponse();
    await delay(420);
    return HttpResponse.json(
      {
        id: "scan-" + Math.random().toString(36).slice(2, 9),
        status: "queued",
        queued_at: new Date().toISOString(),
      },
      { status: 202, headers: { "x-bp-status-code": "202 · scan.queued" } },
    );
  }),

  // ---- /api/workflows/:id/test -----------------------------------------
  http.post("/api/workflows/:id/test", async ({ request, params }) => {
    if (isArchived(request)) return archivedResponse();
    if (isFrozen(request)) return frozenResponse();
    await delay(180);
    return HttpResponse.json(
      {
        workflow_id: params.id,
        run_id: "wfr-" + Math.random().toString(36).slice(2, 9),
        status: "started",
      } satisfies Record<string, unknown> & { workflow_id: unknown },
      { status: 202, headers: { "x-bp-status-code": "202 · workflow.test" } },
    );
  }),

  // ---- /api/billing/reactivate ----------------------------------------
  http.post("/api/billing/reactivate", async ({ request }) => {
    if (isArchived(request)) return archivedResponse();
    await delay(320);
    return HttpResponse.json(
      { status: "pending", contact: "billing@breakpilot.eu" },
      {
        status: 202,
        headers: { "x-bp-status-code": "202 · reactivation.requested" },
      },
    );
  }),
];

// Silence unused-type warnings for payloads we don't fully validate.
export type { InvitePayload, TestRunPayload };