package media

import (
	"fmt"
	"strconv"
	"strings"

	"github.com/rs/zerolog"

	"github.com/l3uddz/nabarr/logger"
	"github.com/l3uddz/nabarr/media/omdb"
	"github.com/l3uddz/nabarr/media/tmdb"
	"github.com/l3uddz/nabarr/media/trakt"
	"github.com/l3uddz/nabarr/media/tvdb"
	"github.com/l3uddz/nabarr/util"
)

type Client struct {
	trakt *trakt.Client
	omdb  *omdb.Client
	tvdb  *tvdb.Client
	tmdb  *tmdb.Client

	log zerolog.Logger
}

func (c *Client) EnrichFeedItemWithTmdbId(item *FeedItem) {
	if c.tmdb == nil {
		return
	}

	// skip if a valid ID is already present
	hasId := (item.TvdbId != "" && !util.StringSliceContains([]string{"0", "1"}, item.TvdbId)) ||
		(item.ImdbId != "" && strings.HasPrefix(item.ImdbId, "tt")) ||
		(item.TmdbId != "" && !util.StringSliceContains([]string{"0", "1"}, item.TmdbId))
	if hasId {
		return
	}

	title, year := tmdb.ExtractTitleAndYear(item.Title)
	if title == "" {
		return
	}

	var tmdbId int
	switch {
	case util.ContainsMovieCategory(item.Categories):
		if id, err := c.tmdb.SearchMovies(title, year); err == nil && id > 0 {
			tmdbId = id
		}
	case util.ContainsTvCategory(item.Categories):
		if id, err := c.tmdb.SearchShows(title, year); err == nil && id > 0 {
			tmdbId = id
		}
	default:
		return
	}

	if tmdbId > 0 {
		item.TmdbId = strconv.Itoa(tmdbId)
		c.log.Info().
			Str("release", item.Title).
			Str("clean_title", title).
			Int("year", year).
			Int("tmdb_id", tmdbId).
			Msg("Enriched item with TMDB ID via title search")
	}
}

func New(cfg *Config) (*Client, error) {
	// validate trakt configured (it is mandatory)
	if cfg.Trakt.ClientId == "" {
		return nil, fmt.Errorf("trakt: no client_id specified")
	}

	var tmdbClient *tmdb.Client
	if cfg.Tmdb.ApiKey != "" {
		tmdbClient = tmdb.New(&cfg.Tmdb)
	}

	return &Client{
		trakt: trakt.New(&cfg.Trakt),
		omdb:  omdb.New(&cfg.Omdb),
		tvdb:  tvdb.New(&cfg.Tvdb),
		tmdb:  tmdbClient,

		log: logger.Child(logger.WithLevel(cfg.Verbosity)),
	}, nil
}