import dotenv from "dotenv";
dotenv.config();

import express from "express";
import cors from "cors";
import helmet from "helmet";
import fs from "fs";
import path from "path";
import { fileURLToPath } from "url";

process.on("unhandledRejection", (err) => {
  console.error("[process] Unhandled rejection:", err);
});
process.on("uncaughtException", (err) => {
  console.error("[process] Uncaught exception:", err);
});
import { corsConfig } from "./middleware/cors.js";
import { errorHandler, notFoundHandler } from "./middleware/errors.js";
import { correlationMiddleware } from "./middleware/correlation.js";
import { rateLimitAuth, rateLimitApi, rateLimitEnroll } from "./middleware/rateLimit.js";
import { authRouter } from "./routes/auth.js";
import { devicesRouter } from "./routes/devices.js";
import { enrollmentTokensRouter } from "./routes/enrollment-tokens.js";
import { groupsRouter } from "./routes/groups.js";
import { jobsRouter } from "./routes/jobs.js";
import { agentRouter } from "./routes/agent.js";
import { auditRouter } from "./routes/audit.js";
import { alertsRouter } from "./routes/alerts.js";
import { policiesRouter } from "./routes/policies.js";
import { dashboardRouter } from "./routes/dashboard.js";
import { usersRouter } from "./routes/users.js";
import { complianceRouter } from "./routes/compliance.js";
import { updateRequestsRouter } from "./routes/update-requests.js";
import { deploymentsRouter } from "./routes/deployments.js";
import { softwareRouter } from "./routes/software.js";
import { appCatalogRouter } from "./routes/appcatalog.js";
import { downloadsRouter } from "./routes/downloads.js";
import { installersRouter } from "./routes/installers.js";
import { remoteRouter } from "./routes/remote.js";
import { attachRelay } from "./ws/relay.js";

const __dirname = path.dirname(fileURLToPath(import.meta.url));

const app = express();
const port = parseInt(process.env.APP_PORT || "3000", 10);

app.use(helmet({
  contentSecurityPolicy: false,
  crossOriginEmbedderPolicy: false,
}));
app.use(cors(corsConfig));
app.use(express.json({ limit: "1mb" }));
app.use(correlationMiddleware);

app.get("/api/health", (_req, res) => {
  res.json({ status: "ok", version: "0.1.0" });
});

const openapiPath = path.resolve(__dirname, "../../../docs/openapi.json");
if (fs.existsSync(openapiPath)) {
  const spec = JSON.parse(fs.readFileSync(openapiPath, "utf-8"));
  app.get("/api/docs", (_req, res) => {
    res.send(`<!DOCTYPE html>
<html><head><title>Fleet Forge API Docs</title>
<link rel="stylesheet" href="https://unpkg.com/swagger-ui-dist@5/swagger-ui.css">
</head><body>
<div id="swagger-ui"></div>
<script src="https://unpkg.com/swagger-ui-dist@5/swagger-ui-bundle.js"></script>
<script>
window.onload = function() {
  SwaggerUIBundle({ spec: ${JSON.stringify(spec)}, dom_id: '#swagger-ui', presets: [SwaggerUIBundle.presets.apis], layout: "BaseLayout" });
};
</script></body></html>`);
  });
  app.get("/api/openapi.json", (_req, res) => res.json(spec));
}

app.use("/api/v1/auth/login", rateLimitAuth);
app.use("/api/v1/agent/enroll", rateLimitEnroll);
app.use("/api/v1", rateLimitApi);

app.use("/api/v1/auth", authRouter);
app.use("/api/v1/users", usersRouter);
app.use("/api/v1/devices", devicesRouter);
app.use("/api/v1/enrollment-tokens", enrollmentTokensRouter);
app.use("/api/v1/groups", groupsRouter);
app.use("/api/v1/jobs", jobsRouter);
app.use("/api/v1/policies", policiesRouter);
app.use("/api/v1/alerts", alertsRouter);
app.use("/api/v1/audit-events", auditRouter);
app.use("/api/v1/dashboard", dashboardRouter);
app.use("/api/v1/compliance", complianceRouter);
app.use("/api/v1/update-requests", updateRequestsRouter);
app.use("/api/v1/deployments", deploymentsRouter);
app.use("/api/v1/software", softwareRouter);
app.use("/api/v1/appcatalog", appCatalogRouter);
app.use("/api/v1/downloads", downloadsRouter);
app.use("/api/v1/installers", installersRouter);
app.use("/api/v1/agent", agentRouter);
app.use("/api/v1/remote", remoteRouter);

app.use(notFoundHandler);
app.use(errorHandler);

if (process.env.NODE_ENV !== "test") {
  const server = app.listen(port, "0.0.0.0", () => {
    console.log(`Fleet Forge API running on port ${port}`);
  });
  attachRelay(server);
}

export default app;