rss-tools/sources/moviefeed/api.go (view raw)
| 1 | package moviefeed |
| 2 | |
| 3 | import ( |
| 4 | "encoding/json" |
| 5 | "fmt" |
| 6 | "log/slog" |
| 7 | "net/http" |
| 8 | "net/url" |
| 9 | "strings" |
| 10 | "time" |
| 11 | ) |
| 12 | |
| 13 | const ( |
| 14 | dateFormat = "2006-01-02" |
| 15 | tmdbBaseURL = "https://api.themoviedb.org/3" |
| 16 | tmdbImageBaseURL = "https://image.tmdb.org/t/p/w500" |
| 17 | ) |
| 18 | |
| 19 | type tmdbShow struct { |
| 20 | ID int `json:"id"` |
| 21 | Name string `json:"name"` |
| 22 | Overview string `json:"overview"` |
| 23 | FirstAirDate string `json:"first_air_date"` |
| 24 | } |
| 25 | |
| 26 | type tmdbShowDetails struct { |
| 27 | tmdbShow |
| 28 | NumberOfSeasons int `json:"number_of_seasons"` |
| 29 | } |
| 30 | |
| 31 | type TMDBEpisode struct { |
| 32 | ID int `json:"id"` |
| 33 | Name string `json:"name"` |
| 34 | Overview string `json:"overview"` |
| 35 | AirDate string `json:"air_date"` |
| 36 | EpisodeNumber int `json:"episode_number"` |
| 37 | SeasonNumber int `json:"season_number"` |
| 38 | StillPath string `json:"still_path"` |
| 39 | ShowName string |
| 40 | ShowID string |
| 41 | } |
| 42 | |
| 43 | type tmdbFindResponse struct { |
| 44 | TvResults []tmdbShow `json:"tv_results"` |
| 45 | } |
| 46 | |
| 47 | type tmdbSeasonResponse struct { |
| 48 | Episodes []TMDBEpisode `json:"episodes"` |
| 49 | } |
| 50 | |
| 51 | type TMDBAPI struct { |
| 52 | apiKey string |
| 53 | client *http.Client |
| 54 | } |
| 55 | |
| 56 | func NewTMDBAPI(apiKey string, client *http.Client) *TMDBAPI { |
| 57 | return &TMDBAPI{ |
| 58 | apiKey: apiKey, |
| 59 | client: client, |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | func (a *TMDBAPI) FetchEpisodesForShow(showID string) ([]TMDBEpisode, error) { |
| 64 | tmdbID, err := a.getTMDBID(showID) |
| 65 | if err != nil { |
| 66 | return nil, err |
| 67 | } |
| 68 | |
| 69 | show, err := makeRequest[tmdbShowDetails](a, "/tv/%s", tmdbID) |
| 70 | if err != nil { |
| 71 | return nil, err |
| 72 | } |
| 73 | |
| 74 | if show.NumberOfSeasons == 0 { |
| 75 | return []TMDBEpisode{}, nil |
| 76 | } |
| 77 | |
| 78 | var allEpisodes []TMDBEpisode |
| 79 | season := show.NumberOfSeasons |
| 80 | seasonData, err := makeRequest[tmdbSeasonResponse](a, "/tv/%s/season/%d", tmdbID, season) |
| 81 | if err != nil { |
| 82 | slog.Warn("failed to fetch season", "season", season, "show", tmdbID, "err", err) |
| 83 | } else { |
| 84 | for _, ep := range seasonData.Episodes { |
| 85 | ep.ShowName = show.Name |
| 86 | ep.ShowID = tmdbID |
| 87 | allEpisodes = append(allEpisodes, ep) |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | return filterRecentEpisodes(allEpisodes), nil |
| 92 | } |
| 93 | |
| 94 | func (a *TMDBAPI) getTMDBID(showID string) (string, error) { |
| 95 | if strings.HasPrefix(showID, "tt") { |
| 96 | result, err := makeRequest[tmdbFindResponse](a, "/find/%s?external_source=imdb_id", showID) |
| 97 | if err != nil { |
| 98 | return "", err |
| 99 | } |
| 100 | |
| 101 | if len(result.TvResults) == 0 { |
| 102 | return "", fmt.Errorf("no TMDB show found for IMDB ID %s", showID) |
| 103 | } |
| 104 | |
| 105 | return fmt.Sprintf("%d", result.TvResults[0].ID), nil |
| 106 | } |
| 107 | return showID, nil |
| 108 | } |
| 109 | |
| 110 | func makeRequest[T any](a *TMDBAPI, endpoint string, args ...any) (*T, error) { |
| 111 | u, err := url.Parse(fmt.Sprintf(tmdbBaseURL+endpoint, args...)) |
| 112 | if err != nil { |
| 113 | return nil, fmt.Errorf("failed to parse URL: %w", err) |
| 114 | } |
| 115 | q := u.Query() |
| 116 | q.Set("api_key", a.apiKey) |
| 117 | u.RawQuery = q.Encode() |
| 118 | |
| 119 | slog.Info("external API request", "endpoint", u.String()) |
| 120 | resp, err := a.client.Get(u.String()) |
| 121 | if err != nil { |
| 122 | return nil, fmt.Errorf("failed to fetch %s: %w", endpoint, err) |
| 123 | } |
| 124 | defer func() { |
| 125 | if err := resp.Body.Close(); err != nil { |
| 126 | slog.Error("failed to close response body", "err", err) |
| 127 | } |
| 128 | }() |
| 129 | |
| 130 | var result T |
| 131 | if err := json.NewDecoder(resp.Body).Decode(&result); err != nil { |
| 132 | return nil, fmt.Errorf("failed to decode response: %w", err) |
| 133 | } |
| 134 | |
| 135 | return &result, nil |
| 136 | } |
| 137 | |
| 138 | func filterRecentEpisodes(episodes []TMDBEpisode) []TMDBEpisode { |
| 139 | var recent []TMDBEpisode |
| 140 | now := time.Now() |
| 141 | cutoff := now.AddDate(0, 0, -30) |
| 142 | |
| 143 | for _, ep := range episodes { |
| 144 | if ep.AirDate == "" { |
| 145 | continue |
| 146 | } |
| 147 | |
| 148 | airDate, err := time.Parse(dateFormat, ep.AirDate) |
| 149 | if err != nil { |
| 150 | continue |
| 151 | } |
| 152 | |
| 153 | if airDate.Before(now) && airDate.After(cutoff) { |
| 154 | recent = append(recent, ep) |
| 155 | } |
| 156 | } |
| 157 | return recent |
| 158 | } |