feat: Anilist support

mal.go

@@ -0,0 +1,98 @@
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"log"
+	"net/http"
+	"slices"
+	"strconv"
+	"time"
+
+	"github.com/darenliang/jikan-go"
+)
+
+func handleMalAnimeSearch(idMap *ConcurrentMap, permaSkipMalIds []string) http.HandlerFunc {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		search, err := getJikanAnimeSearch(idMap, permaSkipMalIds, r)
+		if err != nil {
+			w.WriteHeader(500)
+			w.Write([]byte(err.Error()))
+		} else {
+			w.Write([]byte(search))
+		}
+	})
+}
+
+func getJikanAnimeSearch(idMap *ConcurrentMap, permaSkipMalIds []string, r *http.Request) (string, error) {
+	q := r.URL.Query()
+
+	limit, err := strconv.Atoi(q.Get("limit"))
+	if err != nil {
+		return "", errors.New(" Required parameter \"limit\" not specified")
+	}
+
+	skipDedup := parseBoolParam(q, "allow_duplicates")
+
+	// for some reason Jikan responds with 400 Bad Request for any limit >25
+	// so instead, we just limit when mapping the data and remove the limit from the Jikan request
+	q.Del("limit")
+
+	hasNextPage := true
+	page := 0
+	resp := []ResponseItem{}
+	count := 0
+	usedIds := make(map[int]bool, 0)
+	for hasNextPage {
+		page++
+		q.Set("page", strconv.Itoa(page))
+		result, err := jikan.GetAnimeSearch(q)
+		if err != nil {
+			log.Println("Error sending request to Jikan: ", err)
+			return "", err
+		}
+
+		// map the data
+		for _, item := range result.Data {
+			if idMap.GetByMalId(item.MalId) == 0 {
+				log.Printf("MyAnimeList ID %d (%s) has no associated TVDB ID, skipping...\n", item.MalId, FullAnimeTitle(item.Title, item.TitleEnglish))
+				continue
+			}
+			if usedIds[item.MalId] && !skipDedup {
+				log.Printf("MyAnimeList ID %d (%s) is a duplicate, skipping...\n", item.MalId, FullAnimeTitle(item.Title, item.TitleEnglish))
+				continue
+			}
+			if slices.Contains(permaSkipMalIds, strconv.Itoa(item.MalId)) {
+				log.Printf("MyAnimeList ID %d (%s) is set to always skip, skipping...\n", item.MalId, FullAnimeTitle(item.Title, item.TitleEnglish))
+				continue
+			}
+			count++
+			if count > limit {
+				break
+			}
+			resp = append(resp,
+				ResponseItem{
+					item.Title,
+					item.TitleEnglish,
+					item.MalId,
+					0,
+					idMap.GetByMalId(item.MalId),
+				})
+			usedIds[item.MalId] = true
+		}
+		hasNextPage = result.Pagination.HasNextPage
+		if count > limit {
+			break
+		}
+		if hasNextPage {
+			time.Sleep(500 * time.Millisecond) // sleep between requests for new page to try and avoid rate limits
+		}
+	}
+
+	respJson, err := json.MarshalIndent(resp, "", "  ")
+	if err != nil {
+		log.Println("Error marshalling response: ", err)
+		return "", err
+	}
+	return string(respJson), nil
+}