import bodyParser from "body-parser";
import compression from "compression";
import cors from "cors";
import dotenv from "dotenv";
import express, { Express } from "express";
import helmet from "helmet";
import morgan from "morgan";
import nocache from "nocache";
import path, { resolve } from "path";
import responseTime from "response-time";
import winston from "winston";
import DailyRotateFile from "winston-daily-rotate-file";
import BillRequestValidator from "./bills/billRequestValidator.js";
import { BillsListMedia } from "./bills/billsListMedia.js";
import { BillsMediaUploadMulter, BillsUploadMedia } from "./bills/billsUploadMedia.js";
import validateJobRequest from "./jobs/jobRequestValidator.js";
import { JobsDeleteMedia } from "./jobs/jobsDeleteMedia.js";
import { jobsDownloadMedia } from "./jobs/jobsDownloadMedia.js";
import { JobsListMedia } from "./jobs/jobsListMedia.js";
import { JobsMoveMedia } from "./jobs/jobsMoveMedia.js";
import { JobMediaUploadMulter, jobsUploadMedia } from "./jobs/jobsUploadMedia.js";
import InitServer, { FolderPaths } from "./util/serverInit.js";
import ValidateImsToken from "./util/validateToken.js";

dotenv.config({
  path: resolve(process.cwd(), `.env.${process.env.NODE_ENV || "development"}`)
});

// Logger setup
const commonTransportConfig = {
  maxSize: "20m",
  maxFiles: 14,
  tailable: true,
  zippedArchive: true,
  format: winston.format.combine(winston.format.timestamp(), winston.format.json()),
  datePattern: "YYYY-MM-DD"
};

const baseFormat = winston.format.combine(
  winston.format.timestamp(),
  winston.format.errors({ stack: true }),
  winston.format.json(),
  winston.format.prettyPrint()
);

export const logger = winston.createLogger({
  format: baseFormat,
  level: "http",
  levels: { ...winston.config.syslog.levels, http: 8 },
  exceptionHandlers: [
    new DailyRotateFile({
      filename: path.join(FolderPaths.Root, "logs", "exceptions-%DATE%.log"),
      ...commonTransportConfig
    })
  ],
  rejectionHandlers: [
    new DailyRotateFile({
      filename: path.join(FolderPaths.Root, "logs", "rejections-%DATE%.log"),
      ...commonTransportConfig
    })
  ],
  transports: [
    new DailyRotateFile({
      filename: path.join(FolderPaths.Root, "logs", "errors-%DATE%.log"),
      level: "error",
      ...commonTransportConfig
    }),
    new DailyRotateFile({
      filename: path.join(FolderPaths.Root, "logs", "debug-%DATE%.log"),
      level: "debug",
      ...commonTransportConfig
    }),
    new DailyRotateFile({
      filename: path.join(FolderPaths.Root, "logs", "ALL-%DATE%.log"),
      ...commonTransportConfig
    }),
    new winston.transports.Console({
      format: winston.format.combine(winston.format.colorize(), winston.format.timestamp(), winston.format.simple())
    })
  ]
});

// App init
const app: Express = express();
const port = process.env.PORT;
app.disable("x-powered-by");
app.set("trust proxy", 1);

// Middleware order: security, logging, parsing, etc.
app.set("etag", false);
app.use(helmet({ crossOriginResourcePolicy: { policy: "cross-origin" } }));
app.use(nocache());
app.use(cors());
app.use(compression());
app.use(responseTime());

app.use(bodyParser.json({ limit: "1000mb" }));
app.use(bodyParser.urlencoded({ limit: "1000mb", extended: true }));

app.use((req, res, next) => {
  res.setHeader("Connection", "keep-alive");
  next();
});

const morganMiddleware = morgan("combined", {
  stream: { write: (message) => logger.http(message.trim()) }
});
app.use(morganMiddleware);

// Job endpoints
app.post("/jobs/list", ValidateImsToken, validateJobRequest, JobsListMedia);
app.post("/jobs/upload", ValidateImsToken, JobMediaUploadMulter.array("file"), validateJobRequest, jobsUploadMedia);
app.post("/jobs/download", ValidateImsToken, validateJobRequest, jobsDownloadMedia);
app.post("/jobs/move", ValidateImsToken, JobsMoveMedia);
app.post("/jobs/delete", ValidateImsToken, JobsDeleteMedia);

// Bill endpoints
app.post("/bills/list", BillRequestValidator, BillsListMedia);
app.post(
  "/bills/upload",
  ValidateImsToken,
  BillsMediaUploadMulter.array("file"),
  BillRequestValidator,
  BillsUploadMedia
);

// Health and root
app.get("/", ValidateImsToken, (req, res) => {
  res.send("IMS running.");
});
app.get("/health", (req, res) => {
  res.status(200).send("OK");
});

// Static files
InitServer();
app.use(FolderPaths.StaticPath, express.static(FolderPaths.Root, { etag: false, maxAge: 30 * 1000 }));
app.use("/assets", express.static("./assets", { etag: false, maxAge: 30 * 1000 }));

app.listen(port, () => {
  logger.info(`ImEX Media Server is running at http://localhost:${port}`);
});