package env

import (
	"fmt"
	"os"
	"path/filepath"
	"strings"

	"go.wit.com/log"
)

var ErrInit error = fmt.Errorf("lib/env has not been initialized")

func LoadEtc() error {
	log.Info("Starting LoadEtc() with appname:", APPNAME)
	if envPB == nil {
		return ErrInit
	}
	if APPNAME == "" {
		return ErrInit
	}

	globPattern := filepath.Join("/etc/", APPNAME+".d", "*")
	log.Info("glob Pattern:", globPattern)
	files, err := filepath.Glob(globPattern)
	if err != nil {
		fmt.Printf("%s glob error (%v)\n", globPattern, err)
		return err
	}
	log.Info("found files:", files)

	for _, file := range files {
		data, _ := os.ReadFile(file)
		_, name := filepath.Split(file)
		addEtcFile("etc/"+name, string(data))
		log.Info("LoadEtc() file:", file)
	}

	return nil
}

func addEtcFile(global string, data string) {
	for _, line := range strings.Split(data, "\n") {
		// chop spaces and quotes. similar rules to bash ENV
		line = strings.TrimSpace(line)
		line = strings.Trim(line, "'\"")
		if line == "" {
			continue
		}
		parts := strings.Split(line, "=")
		if len(parts) != 2 {
			// fmt.Println("INVALID LINE:", i, line)
			continue
		}
		varname := parts[0]
		value := parts[1]
		value = strings.Trim(value, "'\"")
		SetGlobal(global, varname, value)
	}
}