media: add support for legacy tvdb api (#16)

media/tvdb/media.go

@@ -0,0 +1,58 @@
+package tvdb
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"github.com/l3uddz/nabarr/util"
+	"github.com/lucperkins/rek"
+)
+
+var (
+	ErrItemNotFound = errors.New("not found")
+)
+
+func (c *Client) GetItem(tvdbId string) (*Item, error) {
+	// empty item when appropriate
+	if c.apiKey == "" || tvdbId == "" {
+		return nil, nil
+	}
+
+	// prepare request
+	reqUrl := util.JoinURL(c.apiURL, "series", tvdbId)
+	c.log.Trace().
+		Str("url", reqUrl).
+		Msg("Searching tvdb")
+
+	// send request
+	c.rl.Take()
+	resp, err := rek.Get(reqUrl, rek.Headers(c.apiHeaders), rek.Timeout(c.apiTimeout))
+	if err != nil {
+		return nil, fmt.Errorf("request lookup: %w", err)
+	}
+	defer resp.Body().Close()
+
+	// validate response
+	if resp.StatusCode() != 200 {
+		return nil, fmt.Errorf("validate lookup response: %s", resp.Status())
+	}
+
+	// decode response
+	b := new(lookupResponse)
+	if err := json.NewDecoder(resp.Body()).Decode(b); err != nil {
+		return nil, fmt.Errorf("decode lookup response: %w", err)
+	}
+
+	if b.Data.SeriesName == "" {
+		return nil, fmt.Errorf("item with imdbId: %v: %w", tvdbId, ErrItemNotFound)
+	}
+
+	return &Item{
+		Runtime:         util.Atoi(b.Data.Runtime, 0),
+		Language:        b.Data.Language,
+		Genre:           b.Data.Genre,
+		AirsDayOfWeek:   b.Data.AirsDayOfWeek,
+		SiteRating:      b.Data.SiteRating,
+		SiteRatingCount: b.Data.SiteRatingCount,
+	}, nil
+}