downloader/main.go

package main

import (
	"fmt"
	"math"
	"time"

	"git.milar.in/milarin/adverr"
	"git.milar.in/milarin/anilist"
	"git.milar.in/milarin/envvars"
	"git.milar.in/nyaanime/model"
)

var (
	PollRate = envvars.Object("POLL_RATE", 30*time.Minute, time.ParseDuration)

	AnilistUsername    = envvars.String("ANILIST_USERNAME", "username")
	AnilistAccessToken = envvars.String("ANILIST_TOKEN", "")

	StoragePath = envvars.String("STORAGE_PATH", "")
	StorageUser = envvars.String("STORAGE_USER", "")
	StoragePass = envvars.String("STORAGE_PASS", "")

	AnimeStatus = envvars.ObjectSlice("ANIME_STATUS", ",", ParseMediaListStatus)

	// essential torrent properties

	MaxResolution = envvars.Object("MAX_RESOLUTION", model.Resolution4K, model.ParseResolution)
	MinResolution = envvars.Object("MIN_RESOLUTION", model.ResolutionHD, model.ParseResolution)

	EssentialLanguages = envvars.StringSlice("ESSENTIAL_LANGUAGES", ",")
	EssentialSubtitles = envvars.StringSlice("ESSENTIAL_SUBTITLES", ",")

	MaxSeeders = envvars.Int("MAX_SEEDERS", math.MaxInt)
	MinSeeders = envvars.Int("MIN_SEEDERS", 0)

	MaxLeechers = envvars.Int("MAX_LEECHERS", math.MaxInt)
	MinLeechers = envvars.Int("MIN_LEECHERS", 0)

	MaxDownloads = envvars.Int("MAX_DOWNLOADS", math.MaxInt)
	MinDownloads = envvars.Int("MIN_DOWNLOADS", 0)

	TrustedOnly = envvars.Bool("TRUSTED_ONLY", false)

	// preferred torrent properties

	PreferredLanguages = envvars.StringSlice("PREFERRED_LANGUAGES", ",")
	PreferredSubtitles = envvars.StringSlice("PREFERRED_SUBTITLES", ",")

	/*
		TODO

		PreferMoreLanguages = envvars.Bool("PREFERER_MORE_LANGUAGES", false)
		PreferMoreSubtitles = envvars.Bool("PREFERER_MORE_SUBTITLES", false)
	*/
)

func main() {
	if len(AnimeStatus) == 0 {
		AnimeStatus = []anilist.MediaListStatus{
			anilist.MediaListStatusCurrent,
			anilist.MediaListStatusPlanning,
		}
	}

	// get access token once at startup to be sure that an access token is obtainable at all
	if _, err := GetAnilistAccessToken(); err != nil {
		panic(err)
	}

	ticker := time.NewTicker(PollRate)
	defer ticker.Stop()

	checkTorrents()
	for range ticker.C {
		checkTorrents()
	}
}

func checkTorrents() {
	fmt.Println("checking torrents")
	start := time.Now()

	torrents, err := GetLatestNyaaContent()
	if err != nil {
		fmt.Println(adverr.Wrap("retrieving torrents failed", err))
		return
	}

	_, err = GetCurrentlyWatchingAnimesByAnimeID()
	if err != nil {
		fmt.Println(adverr.Wrap("retrieving anime list failed", err))
		return
	}

	parsedTorrentsByAnimeEp := FilterEssentialTorrents(ParseTorrentsByAnimeEp(torrents))

	for _, parsedTorrents := range parsedTorrentsByAnimeEp {
		for _, parsedTorrent := range parsedTorrents {
			fmt.Println(parsedTorrent, "|", parsedTorrent.Torrent.StringWithoutTitle())
		}
	}

	duration := time.Since(start)
	fmt.Printf("check took %s. sleeping for %s\n", duration, PollRate-duration)
}