package main

import (
	"encoding/json"
	"fmt"
	"strconv"
	"strings"
	"time"

	"github.com/gookit/color"
	"github.com/xujiajun/nutsdb"
)

func Arbeiten() {
	for range time.Tick(time.Hour) {
		Arbeit()
	}
}

func Arbeit() {
	// check appointments
	appoints, err := ReadAppointments()
	if err != nil {
		if !strings.Contains(err.Error(), "not found") && err != nutsdb.ErrBucketEmpty {
			color.Errorln(err.Error())
			logOut.WriteError(err)
		}
	} else {
		cleared := 0
		for _, a := range appoints {
			if a.Time.Before(time.Now()) {
				// appointment expired
				keyBytes := Int64AndDateToBytes(a.Anime, a.Time)
				err = DbDelete(bucketAppoint, string(keyBytes))
				if err != nil {
					color.Errorln(err.Error())
					logOut.WriteError(err)
				} else {
					cleared++
				}
			}
		}
		if cleared > 0 {
			color.Infof("Cleared %d expired appointments\n", cleared)
			logOut.WriteLine(fmt.Sprintf("♻️ Cleared %d expired appointments", cleared))
		}
	}

	// refresh animelist of users
	animesUsers, err := ReadAnimeUsers()
	if err != nil {
		if err != nutsdb.ErrBucketEmpty {
			color.Errorln(err.Error())
			logOut.WriteError(err)
		}
		return
	}
	// iterate anime
	for _, a := range animesUsers {
		// iterate users
		for _, u := range a.Users {
			newProgress, updated, score, listState, err := FetchProgress(a.Anime, u.Username)
			if err != nil {
				color.Errorln(err.Error())
				logOut.WriteError(err)
				continue
			}
			// check if user set anime as completed
			if listState == malApiStatusC {
				color.Infof("%s finished %d scored %d\n", u.Username, a.Anime, score)
				logOut.WriteLine(fmt.Sprintf("📜 %s finished %d scored %d !", u.Username, a.Anime, score))
				// delete user from anime
				_, err = DeleteUserFromAnime(u.Username, u.MalID, a.Anime)
				if err != nil {
					color.Errorln(err.Error())
					logOut.WriteError(err)
				}
				continue
			}
			// check if user set anime as dropped
			if listState == malApiStatusD {
				color.Infof("%s dropped %d\n", u.Username, a.Anime)
				logOut.WriteLine(fmt.Sprintf("📜 %s dropped %d !", u.Username, a.Anime))
				// delete user from anime
				_, err = DeleteUserFromAnime(u.Username, u.MalID, a.Anime)
				if err != nil {
					color.Errorln(err.Error())
					logOut.WriteError(err)
				}
				continue
			}
			if newProgress == u.Progress {
				continue
			}
			color.Infof("%s progress von %d: %d -> %d\n", u.Username, a.Anime, u.Progress, newProgress)
			logOut.WriteLine(fmt.Sprintf("📜 %s progress von %d: %d -> %d", u.Username, a.Anime, u.Progress, newProgress))
			// update db
			err = UpdateUserAnimeProgress(a.Anime, u.MalID, newProgress, updated)
			if err != nil {
				color.Errorln(err.Error())
				logOut.WriteError(err)
			}
		}
	}
}

func BissleArbeiten() {
	for range time.Tick(4 * time.Hour) {
		BissleArbeit()
	}
}

func BissleArbeit() {
	// refresh user cache
	count := 0
	regUsers, err := ReadRegisteredUsers()
	if err != nil {
		// check if no users registered
		if err != nutsdb.ErrBucketEmpty {
			color.Errorln(err.Error())
			logOut.WriteError(err)
		}
	} else {
		for _, u := range regUsers {
			_, _, err = GetUserData(u.Username)
			if err != nil {
				color.Errorln(err.Error())
				logOut.WriteError(err)
				continue
			}
			count++
		}
	}
	color.Infof("%d User aktualisiert\n", count)
	logOut.WriteLine(fmt.Sprintf("🔃 %d User aktualisiert", count))
}

func LangeArbeiten() {
	for range time.Tick(6 * time.Hour) {
		LangeArbeit()
	}
}

func LangeArbeit() {
	// season data
	_, bytes, err := GetSeasonDataAll()
	if err != nil {
		color.Errorln(err.Error())
		logOut.WriteError(err)
	} else {
		err = seasoncache.Set(seasonApiJikan, bytes)
		if err != nil {
			color.Errorln(err.Error())
			logOut.WriteError(err)
		}
	}

	// next season data
	nextSeason := GetNextSeasonString()
	_, bytes, err = GetNextSeasonDataAll(nextSeason)
	if err != nil {
		color.Errorln(err.Error())
		logOut.WriteError(err)
	} else {
		err = seasoncache.Set(nextSeason, bytes)
		if err != nil {
			color.Errorln(err.Error())
			logOut.WriteError(err)
		}
	}

	// refresh anime cache with watched
	count := 0
	animesUsers, err := ReadAnimeUsers()
	if err != nil {
		if err != nutsdb.ErrBucketEmpty {
			color.Errorln(err.Error())
			logOut.WriteError(err)
		}
	} else {
		for _, a := range animesUsers {
			// search season first
			_, err = SearchSeason(a.Anime)
			if err == nil {
				continue
			}
			err = refreshAnime(a.Anime)
			if err != nil {
				color.Errorln(err.Error())
				logOut.WriteError(err)
				continue
			}
			count++
		}
	}

	charts, err := BuildMovieCharts()
	if err != nil {
		color.Errorln(err.Error())
		logOut.WriteError(err)
	} else {
		for _, c := range charts {
			// search season first
			_, err = SearchSeason(c.Data.Anime)
			if err == nil {
				continue
			}
			err = refreshAnime(c.Data.Anime)
			if err != nil {
				color.Errorln(err.Error())
				logOut.WriteError(err)
				continue
			}
			count++
		}
	}

	color.Infof("%d Anime aktualisiert\n", count)
	logOut.WriteLine(fmt.Sprintf("🔃 %d Anime aktualisiert", count))
}

func SehrLangeArbeiten() {
	for range time.Tick(time.Hour * 24) {
		err := DbClean()
		if err != nil {
			color.Errorln(err.Error())
			logOut.WriteError(err)
		}
	}
}

func refreshAnime(animeId int64) error {
	key := strconv.FormatInt(animeId, 10)
	dataMal, err := GetDataMal(animeApiMal + key + "?fields=id,title,main_picture,alternative_titles,start_date,end_date,synopsis,mean,rank,popularity,num_list_users,num_scoring_users,nsfw,media_type,status,genres,my_list_status,num_episodes,start_season,broadcast,source,average_episode_duration,rating,studios")
	if err != nil {
		return err
	}
	var animeMal AnimeDetailMal
	err = json.Unmarshal(dataMal, &animeMal)
	if err != nil {
		return err
	}
	// convert to anime
	anime := MalConvert(&animeMal)
	data, err := json.Marshal(&anime)
	if err != nil {
		return err
	}
	animeCache.Set(key, data)
	return nil
}