import "dotenv/config";
import "reflect-metadata";
import cors from "cors";
import express from "express";
import swaggerUi from "swagger-ui-express";
import swaggerDocument from "./swagger.json";
import error from "./middlewares/error";
import { AppDataSource } from "./database/data-source";
import { RegisterRoutes } from "./routes";
import logMiddleware from "./middlewares/logs";
import axios from "axios";

async function main() {
  await AppDataSource.initialize();

  const app = express();

  app.use(
    cors({
      origin: "*",
    })
  );
  app.use(express.json());
  app.use(express.urlencoded({ extended: true }));
  app.use(logMiddleware);
  app.use("/", express.static("static"));
  app.use("/api-docs", swaggerUi.serve, swaggerUi.setup(swaggerDocument));

  app.get("/api/v1/probation/dashboard", async (req, res) => {
    // ดึงค่า id จาก query params
    const id = req.query.id as string;
    if (!id) {
      throw new Error("Missing 'id' parameter");
    }

    const params = new URLSearchParams(req.query as Record<string, string>);
    const newUrl = params.toString() ? `${id}?${params.toString()}` : id;

    const API_DASHBOARD = `${process.env.VITE_API_REPORT_URL}/html`;
    const url = `${process.env.VITE_DASHBOARD_PANEL}/d/${newUrl}&kiosk`;

    try {
      // เรียก API generate-pdf
      const apiResponse = await axios.post(
        API_DASHBOARD,
        {
          template: url,
          reportName: "dashboard_report",
          htmlOption: {
            querySelector: ".dashboard-content",
          },
        },
        {
          headers: {
            "Content-Type": "application/json",
            accept: "application/pdf",
          },
          responseType: "arraybuffer",
        }
      );

      console.log("Response:", apiResponse.data);

      const pdfBuffer = Buffer.from(apiResponse.data, "binary");
      res.set({
        "Content-Type": "application/pdf",
        "Content-Disposition": "attachment; filename=dashboard.pdf",
      });
      res.send(pdfBuffer);
    } catch (error) {
      throw new Error("Failed to generate PDF: " + error);
    }
  });

  RegisterRoutes(app);

  app.use(error);
  const APP_HOST = process.env.APP_HOST || "0.0.0.0";
  const APP_PORT = +(process.env.APP_PORT || 3000);

  app.listen(
    APP_PORT,
    APP_HOST,
    () => (
      console.log(
        `[APP] Application is running on: http://localhost:${APP_PORT}`
      ),
      console.log(`[APP] Swagger on: http://localhost:${APP_PORT}/api-docs`)
    )
  );
}

main();