refactor tmdb provider by responsibility

internal/service/tmdb_episode.go

@@ -0,0 +1,68 @@
+package service
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+)
+
+func (t *TMDbProvider) GetTVEpisodeDetails(ctx context.Context, tmdbID, season, episode int) (*TMDbEpisodeDetails, error) {
+	if tmdbID <= 0 || episode <= 0 {
+		return nil, nil
+	}
+	apiKey := t.resolveAPIKey(ctx)
+	if apiKey == "" {
+		return nil, nil
+	}
+	base := t.resolveBaseURL(ctx)
+	q := url.Values{}
+	q.Set("api_key", apiKey)
+	q.Set("language", "zh-CN")
+	u := base + "/tv/" + fmt.Sprint(tmdbID) + "/season/" + fmt.Sprint(season) + "/episode/" + fmt.Sprint(episode) + "?" + q.Encode()
+	var r struct {
+		Name        string  `json:"name"`
+		Overview    string  `json:"overview"`
+		StillPath   string  `json:"still_path"`
+		AirDate     string  `json:"air_date"`
+		VoteAverage float32 `json:"vote_average"`
+		Runtime     int     `json:"runtime"`
+	}
+	if err := t.getJSON(ctx, u, &r); err != nil {
+		return nil, err
+	}
+	details := &TMDbEpisodeDetails{
+		Name:     r.Name,
+		Overview: r.Overview,
+		Rating:   r.VoteAverage,
+		Runtime:  r.Runtime,
+	}
+	if r.StillPath != "" {
+		details.StillURL = t.imgCDN + "/w500" + r.StillPath
+	}
+	if len(r.AirDate) >= 4 {
+		_, _ = fmt.Sscanf(r.AirDate[:4], "%d", &details.AirYear)
+	}
+	return details, nil
+}
+
+func (t *TMDbProvider) GetTVEpisodeCount(ctx context.Context, tmdbID int) (int, error) {
+	if tmdbID <= 0 {
+		return 0, nil
+	}
+	apiKey := t.resolveAPIKey(ctx)
+	if apiKey == "" {
+		return 0, nil
+	}
+	base := t.resolveBaseURL(ctx)
+	q := url.Values{}
+	q.Set("api_key", apiKey)
+	q.Set("language", "zh-CN")
+	u := base + "/tv/" + fmt.Sprint(tmdbID) + "?" + q.Encode()
+	var r struct {
+		NumberOfEpisodes int `json:"number_of_episodes"`
+	}
+	if err := t.getJSON(ctx, u, &r); err != nil {
+		return 0, err
+	}
+	return r.NumberOfEpisodes, nil
+}