package env

import (
	"os"
	"strings"
)

// saves your applications config file
func Save() error {
	return saveENV()
}

func saveENV() error {
	saveMu.Lock()
	defer saveMu.Unlock()
	return saveENVnolock(envPB.Filename)
}

func saveENVnolock(filename string) error {
	outENV, err := formatENV()
	if err == nil {
		// fmt.Println(outENV)
	}
	return os.WriteFile(filename, []byte(outENV), 0644)
}

func Get(flag string) string {
	saveMu.Lock()
	defer saveMu.Unlock()
	if envPB == nil {
		return ""
	}
	c := findByLower(flag)
	if c == nil {
		return ""
	}

	return c.Value
}

func True(flag string) bool {
	saveMu.Lock()
	defer saveMu.Unlock()
	if envPB == nil {
		return false
	}
	found := envPB.FindByVar(flag)
	if found == nil {
		return false
	}
	if strings.ToLower(found.Value) == "true" {
		return true
	}
	return false
}

func Set(varname string, newValue string) error {
	saveMu.Lock()
	defer saveMu.Unlock()
	if envPB == nil {
		return NotInitialized
	}
	found := envPB.FindByVar(varname)
	if found != nil {
		found.Value = newValue
		saveENVnolock(envPB.Filename)
	}

	newvar := new(Key)
	newvar.Var = varname
	newvar.Value = newValue
	envPB.Append(newvar)
	saveENVnolock(envPB.Filename)
	return nil
}