package commands

import (
	"fmt"
	"log"
	"strings"
)

type EchoCommand struct{}

func (c *EchoCommand) Execute(shell *Shell, args []string) error {
	if len(args) > 1 {
		if "\"`uname -sr`\"" == args[0]+" "+args[1] {
			log.Println("Tramp requested uname, returning a fake one: " + fakeUname)
			_, err := shell.WriteOutput(
				[]byte(
					fmt.Sprintf(
						"\"%s\"\n%s\n",
						fakeUname,
						"tramp_exit_status 0",
					),
				),
			)
			return err
		}

		if "\"`tty`\"" == args[0] {
			log.Println("Telling tramp that it's dealing with a tty")
			_, err := shell.WriteOutputString("\"/dev/pts/0\"\n" + trampSuccess)

			return err
		}
	}

	if len(args) > 0 {
		if args[0] == "~root" {
			log.Println("Telling tramp root's home directory")
			_, err := shell.WriteOutputString("/root")
			return err
		}
	}

	_, err := shell.WriteOutput([]byte(strings.Join(args, " ") + "\n"))
	return err
}