package main

import (
	"log"
	"net/http"
	"os"
	"strings"

	"github.com/gin-contrib/cors"
	"github.com/gin-gonic/gin"
)

func main() {
	db, err := InitDB()
	if err != nil {
		log.Fatalf("failed to initialize database: %v", err)
	}
	DB = db

	router := gin.Default()

	// Configure CORS. In production, set CORS_ALLOWED_ORIGINS to your public domain.
	allowedOrigins := []string{"http://localhost:5173"}
	if envOrigins := os.Getenv("CORS_ALLOWED_ORIGINS"); envOrigins != "" {
		allowedOrigins = strings.Split(envOrigins, ",")
	}
	router.Use(cors.New(cors.Config{
		AllowOrigins:     allowedOrigins,
		AllowMethods:     []string{"GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"},
		AllowHeaders:     []string{"Origin", "Content-Type", "Accept", "Authorization"},
		ExposeHeaders:    []string{"Content-Length"},
		AllowCredentials: true,
		MaxAge:           12 * 60 * 60,
	}))

	router.GET("/ping", func(c *gin.Context) {
		c.JSON(200, gin.H{
			"message": "pong",
		})
	})

	router.GET("/db-check", func(c *gin.Context) {
		if err := DB.Ping(); err != nil {
			c.JSON(http.StatusServiceUnavailable, gin.H{"status": "unreachable", "error": err.Error()})
			return
		}
		c.JSON(http.StatusOK, gin.H{"status": "ok"})
	})

	// User routes
	router.POST("/users", createUserHandler)
	router.GET("/users/:id", getUserHandler)
	router.PUT("/users/:id", updateUserHandler)
	router.DELETE("/users/:id", deleteUserHandler)

	// Object routes
	router.POST("/objects", createObjectHandler)
	router.GET("/objects/:id", getObjectHandler)
	router.GET("/users/:id/objects", getObjectsByUserHandler)
	router.PUT("/objects/:id", updateObjectHandler)
	router.DELETE("/objects/:id", deleteObjectHandler)

	router.Run() // listens on 0.0.0.0:8080 by default
}