package discord

import (
	"regexp"
	"strings"
)

var tagRagexp = regexp.MustCompile("<@([0-9]+)>")

func getTagBot(msg string) bool {
	ids := tagRagexp.FindAllString(msg, -1)
	if len(ids) == 0 {
		return false
	}

	for _, id := range ids {
		if id == client.ID {
			return true
		}
	}

	return false
}

func getCMD(str string) (cmd string, keyword bool) {
	cmd = ""
	keyword = false
	charNumber := []rune(str)[0]
	if charNumber == 33 || charNumber == 65218 {
		keyword = true
		if charNumber == 65218 {
			cmd = str[3:]
		} else {
			cmd = str[1:]
		}
	} else {
		cmd = str
	}

	return
}

func parseTextMessage(msg string) (cmd string, keyword bool, payload string) {
	tagBot := getTagBot(msg)
	_ = tagBot
	msg = strings.TrimSpace(tagRagexp.ReplaceAllString(msg, ""))

	strs := strings.Split(msg, " ")

	cmd, keyword = getCMD(strs[0])

	payload = strings.Join(strs[1:], " ")

	return
}