Move functions into their own, separate files & add docs

watch_history.go

@@ -0,0 +1,45 @@
+package crunchyroll
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+// WatchHistory returns the history of watched episodes based on the currently logged in account from the given page with the given size.
+func (c *Crunchyroll) WatchHistory(page uint, size uint) (e []*HistoryEpisode, err error) {
+	watchHistoryEndpoint := fmt.Sprintf("https://beta-api.crunchyroll.com/content/v1/watch-history/%s?page=%d&page_size=%d&locale=%s",
+		c.Config.AccountID, page, size, c.Locale)
+	resp, err := c.request(watchHistoryEndpoint, http.MethodGet)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var jsonBody map[string]interface{}
+	if err = json.NewDecoder(resp.Body).Decode(&jsonBody); err != nil {
+		return nil, fmt.Errorf("failed to parse 'watch-history' response: %w", err)
+	}
+
+	for _, item := range jsonBody["items"].([]interface{}) {
+		panel := item.(map[string]interface{})["panel"]
+
+		episode := &Episode{
+			crunchy: c,
+		}
+		if err := decodeMapToStruct(panel, episode); err != nil {
+			return nil, err
+		}
+
+		historyEpisode := &HistoryEpisode{
+			Episode: episode,
+		}
+		if err := decodeMapToStruct(item, historyEpisode); err != nil {
+			return nil, err
+		}
+
+		e = append(e, historyEpisode)
+	}
+
+	return e, nil
+}