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package config
import (
"log"
"os"
"github.com/joho/godotenv"
)
// Config holds the application configuration
type Config struct {
DatabaseDSN string
JWTSecret string // Secret key for signing JWTs
// Add other config fields here later (e.g., server port)
}
// LoadConfig loads configuration from environment variables or a .env file
func LoadConfig() (*Config, error) {
// Attempt to load .env file (useful for development)
// In production, rely on environment variables set directly
err := godotenv.Load() // Load .env file from current directory or parent dirs
if err != nil {
log.Println("No .env file found, relying on environment variables")
}
dsn := os.Getenv("DATABASE_DSN")
if dsn == "" {
// Set a default for local development if not provided
log.Println("DATABASE_DSN not set, using default local PostgreSQL DSN")
log.Println("IMPORTANT: Ensure PostgreSQL is running with the correct credentials.")
log.Println("Try creating a database 'finance' and setting up a user with the correct permissions.")
log.Println("Example commands:")
log.Println(" createdb finance")
log.Println(" createuser -P -s -e user_name")
// Use more common/generic default credentials
dsn = "host=localhost user=postgres password=postgres dbname=finance port=5432 sslmode=disable TimeZone=UTC"
// Consider making the default conditional or removing it for stricter environments
}
jwtSecret := os.Getenv("JWT_SECRET")
if jwtSecret == "" {
log.Println("WARNING: JWT_SECRET environment variable not set. Using an insecure default.")
// !!! IMPORTANT: Use a strong, randomly generated secret in production !!!
// For development only:
jwtSecret = "insecure-default-dev-secret-change-me"
// return nil, errors.New("JWT_SECRET environment variable is required")
}
return &Config{
DatabaseDSN: dsn,
JWTSecret: jwtSecret,
}, nil
}
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