package config

import (
	"encoding/json"
	"fmt"
	"os"
)

type Config struct {
	Database struct {
		Host     string `json:"host"`
		Port     string `json:"port"`
		User     string `json:"user"`
		Password string `json:"password"`
		DBName   string `json:"dbname"`
		SSLMode  string `json:"sslmode"`
	} `json:"database"`
	Temp string `json:"temp"`
}

func LoadConfig(file string) (Config, error) {
	var config Config
	configFile, err := os.Open(file)
	if err != nil {
		return config, fmt.Errorf("failed to open config file: %w", err)
	}
	defer configFile.Close()

	jsonParser := json.NewDecoder(configFile)
	if err := jsonParser.Decode(&config); err != nil {
		return config, fmt.Errorf("failed to parse config file: %w", err)
	}

	// Override with environment variables if they are set
	if host := os.Getenv("DB_HOST"); host != "" {
		config.Database.Host = host
	}
	if port := os.Getenv("DB_PORT"); port != "" {
		config.Database.Port = port
	}
	if user := os.Getenv("DB_USER"); user != "" {
		config.Database.User = user
	}
	if password := os.Getenv("DB_PASSWORD"); password != "" {
		config.Database.Password = password
	}
	if dbname := os.Getenv("DB_NAME"); dbname != "" {
		config.Database.DBName = dbname
	}
	if sslmode := os.Getenv("DB_SSLMODE"); sslmode != "" {
		config.Database.SSLMode = sslmode
	}
	if temp := os.Getenv("TEMP"); temp != "" {
		config.Temp = temp
	}
	//log.Println("Temp value:", config.Temp)

	return config, nil
}