package cd

import (
	"bbash/environment"
	"bbash/input_parser"
	"fmt"
	"os"
	"path/filepath"
)

func Cd(in input_parser.Input, env *environment.Env) {
	var new_path string
	if in.Args_raw == "" {
		new_path = env.Env["HOME"]
	} else {
		if in.Args_raw[0] == '/' {
			new_path = in.Args_raw
		} else {
			new_path = filepath.Join(env.Path, in.Args_raw)
		}
	}
	file, err := os.Stat(new_path)
	if err != nil {
		fmt.Print(fmt.Sprintf("Error changing directory %s", err.Error()))
		return
	}
	if !file.IsDir() {
		fmt.Print("New path is not a directory")
		return
	}
	env.Path = new_path 
}