main.go

package main

import (
	"fmt"
	"os"

	"shell/internal/command"
	"shell/internal/parser"
	"shell/internal/prompt"
)

func main() {
	executor := command.NewExecutor()
	reader := prompt.NewReader()

	for {
		input, err := reader.ReadLine()
		if err != nil {
			fmt.Fprintln(os.Stderr, err)
			continue
		}

		cmd, arguments := parser.ParseInput(input)
		if cmd == "" {
			continue
		}

		args, outputPath, createOutput, errorPath, createError := parser.ProcessArgs(arguments)

		var outputFile *os.File
		var outputFileError error

		var errorFile *os.File
		var errorFileError error

		if outputPath != "" {
			if createOutput {
				outputFile, outputFileError = os.Create(outputPath)
			} else {
				outputFile, outputFileError = os.OpenFile(outputPath, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0666)
			}

			if outputFileError != nil {
				fmt.Println("File does not exists or cannot be created")
			}
		}

		if errorPath != "" {
			if createError {
				errorFile, errorFileError = os.Create(errorPath)
			} else {
				errorFile, errorFileError = os.OpenFile(errorPath, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0666)
			}
			if errorFileError != nil {
				fmt.Println("File does not exists or cannot be created")
			}
		}

		executor.Execute(cmd, args, outputFile, errorFile)
	}
}