chore: cleanup files

internal/jikan/anime.go

@@ -5,7 +5,6 @@ import (
 	"time"
 )
 
-// GetAnimeByID fetches full details for a single anime
 func (c *Client) GetAnimeByID(id int) (Anime, error) {
 	cacheKey := fmt.Sprintf("anime:%d", id)
 	var cached Anime

internal/jikan/client.go

@@ -43,7 +43,7 @@ func (c *Client) waitRateLimit() {
 	}
 }
 
-func (c *Client) getCache(key string, out interface{}) bool {
+func (c *Client) getCache(key string, out any) bool {
 	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
 	defer cancel()
 
@@ -56,7 +56,7 @@ func (c *Client) getCache(key string, out interface{}) bool {
 	return err == nil
 }
 
-func (c *Client) setCache(key string, data interface{}, ttl time.Duration) {
+func (c *Client) setCache(key string, data any, ttl time.Duration) {
 	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
 	defer cancel()
 
@@ -72,10 +72,9 @@ func (c *Client) setCache(key string, data interface{}, ttl time.Duration) {
 	})
 }
 
-// fetchWithRetry provides robust fetching respecting Jikan's strict 3 req/sec rate limit
-func (c *Client) fetchWithRetry(urlStr string, out interface{}) error {
+func (c *Client) fetchWithRetry(urlStr string, out any) error {
 	maxRetries := 5
-	for i := 0; i < maxRetries; i++ {
+	for range maxRetries {
 		c.waitRateLimit()
 
 		resp, err := c.httpClient.Get(urlStr)

internal/jikan/recommendations.go

@@ -5,7 +5,6 @@ import (
 	"time"
 )
 
-// RecommendationEntry represents a single recommendation
 type RecommendationEntry struct {
 	Entry struct {
 		MalID  int    `json:"mal_id"`
@@ -24,7 +23,6 @@ type RecommendationsResponse struct {
 	Data []RecommendationEntry `json:"data"`
 }
 
-// GetRecommendations fetches recommended anime
 func (c *Client) GetRecommendations(animeID int, limit int) ([]Anime, error) {
 	cacheKey := fmt.Sprintf("recs:%d", animeID)
 	var cached []Anime

internal/jikan/relations.go

@@ -1,6 +1,7 @@
 package jikan
 
-// findFirstAnimeRelation extracts the first related anime ID for a specific relation type
+import "maps"
+
 func findFirstAnimeRelation(groups []JikanRelationGroup, relType string) *int {
 	for _, group := range groups {
 		if group.Relation == relType {
@@ -15,7 +16,6 @@ func findFirstAnimeRelation(groups []JikanRelationGroup, relType string) *int {
 	return nil
 }
 
-// fetchChain recursively builds the relational chain (Prequels or Sequels)
 func (c *Client) fetchChain(startID int, direction string, visited map[int]bool) ([]RelationEntry, error) {
 	anime, err := c.GetAnimeByID(startID)
 	if err != nil {
@@ -24,7 +24,7 @@ func (c *Client) fetchChain(startID int, direction string, visited map[int]bool)
 
 	nextIDPtr := findFirstAnimeRelation(anime.Relations, direction)
 	if nextIDPtr == nil {
-		return nil, nil // normal end of chain
+		return nil, nil
 	}
 
 	nextID := *nextIDPtr
@@ -50,7 +50,6 @@ func (c *Client) fetchChain(startID int, direction string, visited map[int]bool)
 	return append([]RelationEntry{entry}, rest...), nil
 }
 
-// GetFullRelations resolves the full Prequel/Sequel chronological chain synchronously
 func (c *Client) GetFullRelations(id int) ([]RelationEntry, error) {
 	currentAnime, err := c.GetAnimeByID(id)
 	if err != nil {
@@ -62,9 +61,7 @@ func (c *Client) GetFullRelations(id int) ([]RelationEntry, error) {
 	prequels, err1 := c.fetchChain(id, "Prequel", visited)
 
 	visitedSeq := make(map[int]bool)
-	for k, v := range visited {
-		visitedSeq[k] = v
-	}
+	maps.Copy(visitedSeq, visited)
 
 	sequels, err2 := c.fetchChain(id, "Sequel", visitedSeq)
 

internal/jikan/search.go

@@ -6,7 +6,6 @@ import (
 	"time"
 )
 
-// Search returns the anime list with pagination support
 func (c *Client) Search(query string, page int) (SearchResult, error) {
 	if query == "" {
 		return SearchResult{}, nil
@@ -36,7 +35,6 @@ func (c *Client) Search(query string, page int) (SearchResult, error) {
 	return res, nil
 }
 
-// GetTopAnime fetches the top anime by popularity (default) or other filters
 func (c *Client) GetTopAnime(page int) (TopAnimeResult, error) {
 	if page < 1 {
 		page = 1

internal/jikan/seasons.go

@@ -6,14 +6,11 @@ import (
 	"time"
 )
 
-// ScheduleResult contains anime grouped by day
 type ScheduleResult struct {
 	Animes      []Anime
 	HasNextPage bool
 }
 
-// GetSchedule fetches anime airing on a specific day
-// day can be: monday, tuesday, wednesday, thursday, friday, saturday, sunday, unknown, other
 func (c *Client) GetSchedule(day string) (ScheduleResult, error) {
 	day = strings.ToLower(day)
 	cacheKey := fmt.Sprintf("schedule_%s", day)
@@ -38,7 +35,6 @@ func (c *Client) GetSchedule(day string) (ScheduleResult, error) {
 	return res, nil
 }
 
-// GetFullSchedule fetches all days at once
 func (c *Client) GetFullSchedule() (map[string][]Anime, error) {
 	days := []string{"monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"}
 	schedule := make(map[string][]Anime)
@@ -54,7 +50,6 @@ func (c *Client) GetFullSchedule() (map[string][]Anime, error) {
 	return schedule, nil
 }
 
-// GetSeasonsNow fetches currently airing anime
 func (c *Client) GetSeasonsNow(page int) (TopAnimeResult, error) {
 	if page < 1 {
 		page = 1
@@ -80,7 +75,6 @@ func (c *Client) GetSeasonsNow(page int) (TopAnimeResult, error) {
 	return res, nil
 }
 
-// GetSeasonsUpcoming fetches upcoming anime
 func (c *Client) GetSeasonsUpcoming(page int) (TopAnimeResult, error) {
 	if page < 1 {
 		page = 1

internal/jikan/types.go

@@ -12,20 +12,17 @@ type TopAnimeResult struct {
 	HasNextPage bool
 }
 
-// NamedEntity represents genres, studios, producers, etc.
 type NamedEntity struct {
 	MalID int    `json:"mal_id"`
 	Name  string `json:"name"`
 }
 
-// Aired represents the airing date range
 type Aired struct {
 	From   string `json:"from"`
 	To     string `json:"to"`
 	String string `json:"string"`
 }
 
-// Anime struct matching the Jikan v4 API structure
 type Anime struct {
 	MalID         int      `json:"mal_id"`
 	Title         string   `json:"title"`
@@ -73,12 +70,10 @@ type Anime struct {
 	Relations []JikanRelationGroup `json:"relations"`
 }
 
-// ImageURL returns the webp large image URL
 func (a Anime) ImageURL() string {
 	return a.Images.Webp.LargeImageURL
 }
 
-// ShortRating returns abbreviated rating (e.g., "PG-13" from "PG-13 - Teens 13 or older")
 func (a Anime) ShortRating() string {
 	if a.Rating == "" {
 		return ""
@@ -92,7 +87,6 @@ func (a Anime) ShortRating() string {
 	return a.Rating
 }
 
-// ShortDuration returns abbreviated duration (e.g., "23m" from "23 min per ep")
 func (a Anime) ShortDuration() string {
 	if a.Duration == "" {
 		return ""
@@ -112,7 +106,6 @@ func (a Anime) ShortDuration() string {
 	return a.Duration
 }
 
-// Premiered returns season + year (e.g., "Fall 2002")
 func (a Anime) Premiered() string {
 	if a.Season != "" && a.Year > 0 {
 		return fmt.Sprintf("%s %d", a.Season, a.Year)
@@ -138,7 +131,6 @@ type TopAnimeResponse struct {
 	Pagination Pagination `json:"pagination"`
 }
 
-// Relation Types
 type JikanRelationEntry struct {
 	MalID int    `json:"mal_id"`
 	Type  string `json:"type"`
@@ -160,7 +152,6 @@ type RelationEntry struct {
 	IsCurrent bool
 }
 
-// DisplayTitle prefers English, falls back to Japanese, then standard Title
 func (a Anime) DisplayTitle() string {
 	if a.TitleEnglish != "" {
 		return a.TitleEnglish