package db

import (
	"database/sql"
	"encoding/json"
	"log"
	"os"

	_ "github.com/go-sql-driver/mysql"
)

type Config struct {
	Host     string `json:"databaseHost"`
	Port     string `json:"databasePort"`
	User     string `json:"databaseUser"`
	Password string `json:"databasePassword"`
	DBName   string `json:"database"`
}

var DB *sql.DB

func InitDB() {
	config := loadConfig()
	dsn := config.User + ":" + config.Password + "@tcp(" + config.Host + ":" + config.Port + ")/" + config.DBName

	var err error
	DB, err = sql.Open("mysql", dsn)
	if err != nil {
		log.Fatal("Error connecting to database:", err)
	}

	err = DB.Ping()
	if err != nil {
		log.Fatal("Error pinging database:", err)
	}
}

func loadConfig() Config {
	file, err := os.ReadFile("config.json")
	if err != nil {
		log.Fatal("Error reading config file:", err)
	}

	var config Config
	err = json.Unmarshal(file, &config)
	if err != nil {
		log.Fatal("Error parsing config file:", err)
	}

	return config
}