require("dotenv").config();
const express = require("express");
const cors = require("cors");
const { Sequelize } = require("sequelize");

const app = express();
const PORT = process.env.PORT || 5000;

// Middleware
app.use(cors());
app.use(express.json());

// Database connection
const sequelize = new Sequelize(
  process.env.DB_NAME,
  process.env.DB_USER,
  process.env.DB_PASSWORD,
  {
    host: process.env.DB_HOST,
    port: process.env.DB_PORT,
    dialect: "postgres",
  }
);

// Test DB connection
sequelize
  .authenticate()
  .then(() => console.log("Database connected"))
  .catch((err) => console.error("Database connection failed:", err));

// Import models
const db = require("./models");
const User = db.User;
const TimeEntry = db.TimeEntry;

// Sync database
sequelize
  .sync({ force: false }) // Set to true for development to recreate tables
  .then(() => {
    console.log("Database synced");
    // Create admin user if not exists
    return User.findOrCreate({
      where: { username: "admin" },
      defaults: {
        username: "admin",
        password: "admin123", // In production, hash this
        role: "admin",
      },
    });
  })
  .then(([user, created]) => {
    if (created) {
      console.log("Admin user created");
    } else {
      console.log("Admin user already exists");
    }

    // Create test time entry for admin
    return TimeEntry.findOrCreate({
      where: {
        userId: user.id,
        date: new Date("2025-10-10"),
        reason: "Test entry",
      },
      defaults: {
        userId: user.id,
        date: new Date("2025-10-10"),
        reason: "Test entry",
        hours: 8.5,
      },
    });
  })
  .then(([entry, created]) => {
    if (created) {
      console.log("Test time entry created");
    } else {
      console.log("Test time entry already exists");
    }
  });

// Routes
app.use("/api/auth", require("./routes/auth"));
app.use("/api/users", require("./routes/users"));
app.use("/api/time-entries", require("./routes/timeEntries"));

// Health check
app.get("/health", (req, res) => res.status(200).json({ status: "OK" }));

app.get("/", (req, res) => res.send("Time Tracking API"));

app.listen(PORT, () => {
  console.log(`Server running on port ${PORT}`);
});