package main

import (
	"log"
	"os"
	"strings"

	"io/ioutil"
	"path/filepath"

	"github.com/hamcha/clessy/tg"
	"github.com/zgiber/mctext"
)

var orogen *mctext.MChain
var orocorpus *strings.Reader

func initoroscopo() {
	counter := 0
	corpus := ""
	filepath.Walk(*oropath, func(path string, info os.FileInfo, err error) error {
		if info.IsDir() {
			return nil
		}

		data, err := ioutil.ReadFile(path)
		if err != nil {
			return err
		}

		corpus += string(data)
		counter++

		return nil
	})

	orocorpus = strings.NewReader(corpus)

	orogen := mctext.New()
	orogen.Parse(orocorpus)

	log.Printf("[oroscopo] Loaded corpus from %d files\n", counter)
}

func oroscopo(broker *tg.Broker, update tg.APIMessage) {
	if isCommand(update, "oroscopo") {
		for {
			txt := orogen.Generate("", 100)
			idx := strings.LastIndexByte(txt, '.')
			if idx < 10 {
				continue
			}
			txt = txt[:idx]
			broker.SendTextMessage(update.Chat, "<b>Ecco cosa dicono le stelle:</b>\n"+txt, &update.MessageID)
			return
		}
	}
}