package main

import (
	"context"
	"regexp"
	"strings"

	neco "git.nefrace.ru/nefrace/nechotron"
)

func karmaTriggers(u *neco.Update) bool {
	triggers := GetTriggers()

	text := u.Text()
	for t, v := range triggers {
		if strings.HasPrefix(text, t) {
			u.Ctx = context.WithValue(u.Ctx, neco.FilteredValue("karmaTrigger"), t)
			u.Ctx = context.WithValue(u.Ctx, neco.FilteredValue("karmaValue"), v)
			return true
		}
	}
	return false
}

func offtopTrigger(u *neco.Update) bool {
	text := strings.ToLower(u.Text())
	return strings.Contains(text, "оффтоп")
}

var docRegex = regexp.MustCompile(`(?i)док(ументац[а-я]+|[а-я])? ((п)?о )?(?P<topic>@?[\w\d\s]{1,32})`)

func docRequest(u *neco.Update) bool {
	text := u.Text()
	matches := docRegex.FindStringSubmatch(text)
	if len(matches) == 0 {
		return false
	}
	result := make(map[string]string)
	for i, name := range docRegex.SubexpNames() {
		if i != 0 && name != "" {
			result[name] = matches[i]
		}
	}
	u.Ctx = context.WithValue(u.Ctx, neco.FilteredValue("docTopic"), result["topic"])
	return true
}

func isFile(u *neco.Update) bool {
	if u.Message == nil {
		return false
	}
	if u.Message.Document == nil {
		return false
	}
	return true
}