package config

import (
	"os"
	"strconv"

	"git.secnex.io/secnex/masterlog"
)

const (
	// Default ports
	DefaultSOLPort = 9999
	DefaultAPIPort = 8080
)

// Config holds the application configuration
type Config struct {
	SOLPort    int
	APIPort    int
	APIEnabled bool
	AuthUser   string
	AuthPass   string
}

// Load loads configuration from environment variables
func Load() *Config {
	cfg := &Config{
		SOLPort:    getPortFromEnv("SOL_PORT", DefaultSOLPort),
		APIPort:    getPortFromEnv("API_PORT", DefaultAPIPort),
		APIEnabled: getBoolFromEnv("API_ENABLED", false),
		AuthUser:   os.Getenv("SOL_AUTH_USER"),
		AuthPass:   os.Getenv("SOL_AUTH_PASSWORD"),
	}

	if cfg.AuthUser == "" || cfg.AuthPass == "" {
		masterlog.Error("Environment variables not set", map[string]interface{}{
			"variables": "SOL_AUTH_USER, SOL_AUTH_PASSWORD",
		})
		return nil
	}

	return cfg
}

func getPortFromEnv(envVar string, defaultPort int) int {
	if portStr := os.Getenv(envVar); portStr != "" {
		if port, err := strconv.Atoi(portStr); err == nil && port > 0 && port < 65536 {
			return port
		} else {
			masterlog.Error("Invalid environment variable value", map[string]interface{}{
				"error":    err,
				"variable": envVar,
				"value":    portStr,
				"default":  defaultPort,
				"type":     "port",
			})
		}
	}
	return defaultPort
}

func getBoolFromEnv(envVar string, defaultValue bool) bool {
	if val := os.Getenv(envVar); val != "" {
		if val == "true" || val == "TRUE" || val == "True" || val == "1" {
			return true
		} else {
			masterlog.Error("Invalid environment variable value", map[string]interface{}{
				"variable": envVar,
				"value":    val,
				"type":     "boolean",
			})
		}
		return false
	} else {
		masterlog.Error("Invalid environment variable value", map[string]interface{}{
			"variable": envVar,
			"value":    val,
			"type":     "boolean",
		})
		return false
	}
}