package main

import (
	"log"
	"os"
	"strconv"

	"baron-sso-backend/internal/handler"
	"baron-sso-backend/internal/repository"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/cors"
	"github.com/gofiber/fiber/v2/middleware/encryptcookie"
	"github.com/gofiber/fiber/v2/middleware/logger"
	"github.com/gofiber/fiber/v2/middleware/recover"
)

func getEnv(key, fallback string) string {
	if value, ok := os.LookupEnv(key); ok {
		return value
	}
	return fallback
}

func main() {
	// 1. Initialize DB Connections
	chHost := getEnv("CLICKHOUSE_HOST", "localhost")
	chPort, _ := strconv.Atoi(getEnv("CLICKHOUSE_PORT_NATIVE", "9000"))
	chUser := getEnv("CLICKHOUSE_USER", "default")
	chPass := getEnv("CLICKHOUSE_PASSWORD", "")
	chDB := getEnv("CLICKHOUSE_DB", "default")

	auditRepo, err := repository.NewClickHouseRepository(chHost, chPort, chUser, chPass, chDB)
	if err != nil {
		log.Printf("Warning: Failed to connect to ClickHouse: %v. Audit logs will fail.", err)
		// Proceeding mostly for Dev purposes, but in Prod should generally fail or fallback.
	}

	// 2. Initialize Handlers
	auditHandler := handler.NewAuditHandler(auditRepo)

	// 3. Initialize Fiber
	app := fiber.New(fiber.Config{
		AppName: "Baron SSO Backend",
	})

	// Middleware
	app.Use(logger.New())
	app.Use(recover.New())
	app.Use(cors.New()) // Allow Frontend Access
	app.Use(encryptcookie.New(encryptcookie.Config{
		Key: getEnv("COOKIE_SECRET", "secret-key-must-be-32-bytes-long!"),
	}))

	// Routes
	app.Get("/", func(c *fiber.Ctx) error {
		return c.SendString("Baron SSO Audit Backend Online")
	})

	app.Get("/health", func(c *fiber.Ctx) error {
		return c.JSON(fiber.Map{"status": "ok"})
	})

	// API Group
	api := app.Group("/api/v1")
	api.Post("/audit", auditHandler.CreateLog)

	// Start Server
	port := getEnv("PORT", "3000")
	log.Fatal(app.Listen(":" + port))
}