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package main
import (
"encoding/json"
"fmt"
"log/slog"
"net/http"
"time"
)
type TMDBShow struct {
ID int `json:"id"`
Name string `json:"name"`
Overview string `json:"overview"`
FirstAirDate string `json:"first_air_date"`
}
type tmdbShowDetails struct {
TMDBShow
NumberOfSeasons int `json:"number_of_seasons"`
}
type TMDBEpisode struct {
ID int `json:"id"`
Name string `json:"name"`
Overview string `json:"overview"`
AirDate string `json:"air_date"`
EpisodeNumber int `json:"episode_number"`
SeasonNumber int `json:"season_number"`
ShowName string
ShowID string
}
type tmdbFindResponse struct {
TvResults []TMDBShow `json:"tv_results"`
}
type tmdbSeasonResponse struct {
Episodes []TMDBEpisode `json:"episodes"`
}
func fetchNewEpisodes(config *Config) ([]TMDBEpisode, error) {
var allEpisodes []TMDBEpisode
for _, showID := range config.Shows {
episodes, err := fetchEpisodesForShow(showID, config.APIKey)
if err != nil {
slog.Warn("failed to fetch episodes for show", "show", showID, "err", err)
continue
}
allEpisodes = append(allEpisodes, episodes...)
}
return allEpisodes, nil
}
func getTMDBID(showID, apiKey string) (string, error) {
imdbIDPrefix := "tt"
if len(showID) > len(imdbIDPrefix) && showID[:len(imdbIDPrefix)] == imdbIDPrefix {
url := fmt.Sprintf(
"https://api.themoviedb.org/3/find/%s?api_key=%s&external_source=imdb_id",
showID,
apiKey,
)
resp, err := http.Get(url)
if err != nil {
return "", fmt.Errorf("failed to fetch TMDB ID: %w", err)
}
defer resp.Body.Close()
var result tmdbFindResponse
if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
return "", err
}
if len(result.TvResults) == 0 {
return "", fmt.Errorf("no TMDB show found for IMDB ID %s", showID)
}
return fmt.Sprintf("%d", result.TvResults[0].ID), nil
}
return showID, nil
}
func fetchEpisodesForShow(showID, apiKey string) ([]TMDBEpisode, error) {
tmdbID, err := getTMDBID(showID, apiKey)
if err != nil {
return nil, err
}
// Get show details
url := fmt.Sprintf("https://api.themoviedb.org/3/tv/%s?api_key=%s", tmdbID, apiKey)
resp, err := http.Get(url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var show tmdbShowDetails
if err := json.NewDecoder(resp.Body).Decode(&show); err != nil {
return nil, err
}
seasonsToFetch := []int{1}
if show.NumberOfSeasons > 1 {
seasonsToFetch = append(seasonsToFetch, show.NumberOfSeasons)
}
var allEpisodes []TMDBEpisode
for _, season := range seasonsToFetch {
seasonURL := fmt.Sprintf("https://api.themoviedb.org/3/tv/%s/season/%d?api_key=%s",
tmdbID, season, apiKey)
resp, err := http.Get(seasonURL)
if err != nil {
slog.Warn("failed to fetch season", "season", season, "show", tmdbID, "err", err)
continue
}
defer resp.Body.Close()
var seasonData tmdbSeasonResponse
if err := json.NewDecoder(resp.Body).Decode(&seasonData); err != nil {
slog.Warn("failed to decode season", "season", season, "show", tmdbID, "err", err)
continue
}
for _, ep := range seasonData.Episodes {
ep.ShowName = show.Name
ep.ShowID = tmdbID
allEpisodes = append(allEpisodes, ep)
}
}
return filterRecentEpisodes(allEpisodes), nil
}
func filterRecentEpisodes(episodes []TMDBEpisode) []TMDBEpisode {
var recent []TMDBEpisode
now := time.Now()
cutoff := now.AddDate(0, 0, -30)
for _, ep := range episodes {
if ep.AirDate == "" {
continue
}
airDate, err := time.Parse(dateFormat, ep.AirDate)
if err != nil {
continue
}
if airDate.Before(now) && airDate.After(cutoff) {
recent = append(recent, ep)
}
}
return recent
}
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