package input_parser

import "bbash/environment"

func AutoCompleteHistory(input string, env environment.Env) string {

	inputLength := len(input)

	if inputLength == 0 {
		return ""
	}

	tabIndex = 0

	// currentCommands := []string{
	// 	"cat",
	// 	"cd",
	// 	"cp",
	// 	"echo",
	// 	"head",
	// 	"help",
	// 	"ls",
	// 	"man",
	// 	"mv",
	// 	"pwd",
	// 	"rm",
	// 	"tail",
	// 	"touch",
	// }

	historyWorking := ""

	for _, currentHistory := range env.History[:len(env.History)-1] {
		// println("currentHistory", currentHistory)

		if len(currentHistory) < inputLength {
			continue
		}

		currentCommandWithoutEnd := currentHistory[:inputLength]

		if currentCommandWithoutEnd != input {
			continue
		}

		historyWorking = currentHistory

	}

	if len(historyWorking) != 0 {
		historyWorking = historyWorking[inputLength:]
	}

	return historyWorking
}