540 lines
15 KiB
Go
540 lines
15 KiB
Go
package anime
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import (
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"context"
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"encoding/json"
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"errors"
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"html"
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"log"
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"net/http"
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"strconv"
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"strings"
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"time"
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"mal/integrations/jikan"
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"mal/internal/db"
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"mal/internal/middleware"
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"mal/templates"
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"golang.org/x/sync/errgroup"
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)
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type Handler struct {
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service *Service
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}
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func NewHandler(service *Service) *Handler {
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return &Handler{service: service}
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}
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type quickSearchResult struct {
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ID int `json:"id"` // anime mal id
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Title string `json:"title"` // display title
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Type string `json:"type"` // anime type (tv, movie, etc)
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Image string `json:"image"` // cover image url
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}
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func (h *Handler) HandleCatalog(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path != "/" {
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renderNotFoundPage(r, w)
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return
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}
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user := middleware.GetUser(r.Context())
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if err := templates.GetRenderer().ExecuteTemplate(r.Context(), w, "index.gohtml", map[string]any{
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"User": user,
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"CurrentPath": r.URL.Path,
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}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("render error: %v", err)
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}
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http.Error(w, "Internal Server Error", http.StatusInternalServerError)
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}
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}
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func (h *Handler) HandleCatalogAiring(w http.ResponseWriter, r *http.Request) {
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h.renderCatalogSection(w, r, "Airing")
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}
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func (h *Handler) HandleCatalogPopular(w http.ResponseWriter, r *http.Request) {
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h.renderCatalogSection(w, r, "Popular")
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}
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func (h *Handler) HandleCatalogContinue(w http.ResponseWriter, r *http.Request) {
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h.renderCatalogSection(w, r, "Continue")
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}
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// renderCatalogSection fetches catalog data (airing/popular/continue) and renders as htmx fragment
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func (h *Handler) renderCatalogSection(w http.ResponseWriter, r *http.Request, section string) {
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user := middleware.GetUser(r.Context())
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userID := ""
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if user != nil {
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userID = user.ID
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}
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data, err := h.service.GetCatalogSection(r.Context(), userID, section)
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if err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("catalog %s error: %v", section, err)
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}
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if section != "Continue" {
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writeInlineLoadError(w, "Failed to load "+section)
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}
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return
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}
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data["User"] = user
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data["Section"] = section
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// render section as htmx partial, not full page
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if err := templates.GetRenderer().ExecuteFragment(r.Context(), w, "index.gohtml", "catalog_section", data); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("fragment render error: %v", err)
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}
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}
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}
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func (h *Handler) HandleDiscover(w http.ResponseWriter, r *http.Request) {
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user := middleware.GetUser(r.Context())
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if err := templates.GetRenderer().ExecuteTemplate(r.Context(), w, "discover.gohtml", map[string]any{
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"User": user,
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"CurrentPath": r.URL.Path,
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}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("render error: %v", err)
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}
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http.Error(w, "Internal Server Error", http.StatusInternalServerError)
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}
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}
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func (h *Handler) HandleDiscoverTrending(w http.ResponseWriter, r *http.Request) {
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h.renderDiscoverSection(w, r, "Trending")
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}
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func (h *Handler) HandleDiscoverUpcoming(w http.ResponseWriter, r *http.Request) {
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h.renderDiscoverSection(w, r, "Upcoming")
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}
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func (h *Handler) HandleDiscoverTop(w http.ResponseWriter, r *http.Request) {
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h.renderDiscoverSection(w, r, "Top")
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}
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func (h *Handler) renderDiscoverSection(w http.ResponseWriter, r *http.Request, section string) {
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user := middleware.GetUser(r.Context())
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userID := ""
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if user != nil {
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userID = user.ID
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}
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data, err := h.service.GetDiscoverSection(r.Context(), userID, section)
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if err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("discover %s error: %v", section, err)
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}
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writeInlineLoadError(w, "Failed to load "+section)
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return
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}
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data["User"] = user
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data["Section"] = section
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if err := templates.GetRenderer().ExecuteFragment(r.Context(), w, "discover.gohtml", "discover_section", data); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("fragment render error: %v", err)
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}
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}
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}
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// HandleBrowse handles anime search/browse with filters. supports htmx partial loading.
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func (h *Handler) HandleBrowse(w http.ResponseWriter, r *http.Request) {
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user := middleware.GetUser(r.Context())
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// parse query params for search/filter
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q := r.URL.Query().Get("q")
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animeType := r.URL.Query().Get("type")
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status := r.URL.Query().Get("status")
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orderBy := r.URL.Query().Get("order_by")
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sort := r.URL.Query().Get("sort")
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sfw := r.URL.Query().Get("sfw") != "false" // default to safe
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var genres []int
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for _, g := range r.URL.Query()["genres"] {
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id, err := strconv.Atoi(g)
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if err == nil {
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genres = append(genres, id)
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}
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}
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page := parsePageParam(r)
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ctx, cancel := context.WithTimeout(r.Context(), 20*time.Second)
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defer cancel()
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res, err := h.service.jikanClient.SearchAdvanced(ctx, q, animeType, status, orderBy, sort, genres, sfw, page, 24)
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if err != nil {
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if errors.Is(err, context.Canceled) {
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return
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}
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log.Printf("browse error: %v", err)
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}
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if r.Header.Get("HX-Request") == "true" {
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// htmx: return just the card scroll fragment with watchlist state
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watchlistMap := make(map[int]bool)
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if user != nil {
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watchlist, _ := h.service.db.GetUserWatchList(ctx, user.ID)
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for _, entry := range watchlist {
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watchlistMap[int(entry.AnimeID)] = true
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}
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}
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w.Header().Set("Content-Type", "text/html")
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err := templates.GetRenderer().ExecuteFragment(ctx, w, "browse.gohtml", "anime_card_scroll", map[string]any{
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"Animes": res.Animes,
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"NextPage": page + 1,
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"HasNextPage": res.HasNextPage,
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"Query": q,
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"Type": animeType,
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"Status": status,
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"OrderBy": orderBy,
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"Sort": sort,
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"Genres": genres,
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"SFW": sfw,
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"WatchlistMap": watchlistMap,
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})
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if err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("fragment render error: %v", err)
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}
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}
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return
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}
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// full page load: fetch genres list and full watchlist
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genresList, err := h.service.jikanClient.GetAnimeGenres(ctx)
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if err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("genres error: %v", err)
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}
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}
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watchlistMap := make(map[int]bool)
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var watchlistIDs []int64
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if user != nil {
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watchlist, _ := h.service.db.GetUserWatchList(ctx, user.ID)
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watchlistIDs = make([]int64, len(watchlist))
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for i, entry := range watchlist {
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watchlistMap[int(entry.AnimeID)] = true
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watchlistIDs[i] = entry.AnimeID
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}
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}
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if err := templates.GetRenderer().ExecuteTemplate(ctx, w, "browse.gohtml", map[string]any{
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"User": user,
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"CurrentPath": r.URL.Path,
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"Query": q,
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"Type": animeType,
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"Status": status,
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"OrderBy": orderBy,
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"Sort": sort,
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"Genres": genres,
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"SFW": sfw,
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"GenresList": genresList,
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"Animes": res.Animes,
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"HasNextPage": res.HasNextPage,
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"NextPage": page + 1,
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"WatchlistMap": watchlistMap,
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"WatchlistIDs": watchlistIDs,
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}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("render error: %v", err)
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http.Error(w, "Internal Server Error", http.StatusInternalServerError)
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}
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}
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}
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// HandleAnimeDetails renders anime detail page. handles htmx requests for characters/recommendations sections.
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func (h *Handler) HandleAnimeDetails(w http.ResponseWriter, r *http.Request) {
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idStr := strings.TrimPrefix(r.URL.Path, "/anime/")
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idStr = strings.TrimSuffix(idStr, "/")
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id, err := strconv.Atoi(idStr)
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if err != nil {
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renderNotFoundPage(r, w)
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return
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}
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user := middleware.GetUser(r.Context())
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// htmx: return just the section (characters or recommendations)
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section := r.URL.Query().Get("section")
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if section != "" && r.Header.Get("HX-Request") == "true" {
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h.renderAnimeDetailsSection(w, r, id, section)
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return
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}
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var (
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anime jikan.Anime
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status string
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episodesCount int
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watchlistIDs []int64
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)
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g, gCtx := errgroup.WithContext(r.Context())
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// fetch anime details + episode count if airing
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g.Go(func() error {
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var err error
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anime, err = h.service.jikanClient.GetAnimeByID(gCtx, id)
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if err == nil && anime.Airing {
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// get episode count for airing anime (may span multiple pages)
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eps, err := h.service.jikanClient.GetEpisodes(gCtx, id, 1)
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if err == nil {
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if eps.Pagination.LastVisiblePage > 1 {
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lastEps, err := h.service.jikanClient.GetEpisodes(gCtx, id, eps.Pagination.LastVisiblePage)
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if err == nil && len(lastEps.Data) > 0 {
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lastEp := lastEps.Data[len(lastEps.Data)-1]
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count, _ := strconv.Atoi(lastEp.Episode)
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episodesCount = count
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}
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} else if len(eps.Data) > 0 {
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lastEp := eps.Data[len(eps.Data)-1]
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count, _ := strconv.Atoi(lastEp.Episode)
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episodesCount = count
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}
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}
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}
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return err
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})
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if user != nil {
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// fetch user's watchlist status for this anime
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g.Go(func() error {
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entry, err := h.service.db.GetWatchListEntry(gCtx, db.GetWatchListEntryParams{
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UserID: user.ID,
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AnimeID: int64(id),
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})
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if err == nil {
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status = entry.Status
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}
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return nil
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})
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// fetch all watchlist ids for nav state
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g.Go(func() error {
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watchlist, err := h.service.db.GetUserWatchList(gCtx, user.ID)
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if err == nil {
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watchlistIDs = make([]int64, len(watchlist))
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for i, e := range watchlist {
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watchlistIDs[i] = e.AnimeID
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}
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}
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return nil
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})
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}
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if err := g.Wait(); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("anime details fetch error: %v", err)
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}
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renderNotFoundPage(r, w)
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return
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}
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if err := templates.GetRenderer().ExecuteTemplate(r.Context(), w, "anime.gohtml", map[string]any{
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"Anime": anime,
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"User": user,
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"Status": status,
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"CurrentPath": r.URL.Path,
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"WatchlistIDs": watchlistIDs,
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"EpisodesCount": episodesCount,
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}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("render error: %v", err)
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}
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http.Error(w, "Internal Server Error", http.StatusInternalServerError)
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}
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}
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// renderAnimeDetailsSection fetches and renders htmx partial for character/recommendation sections
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func (h *Handler) renderAnimeDetailsSection(w http.ResponseWriter, r *http.Request, id int, section string) {
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ctx := r.Context()
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var data any
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var err error
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switch section {
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case "characters":
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data, err = h.service.jikanClient.GetAnimeCharacters(ctx, id)
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case "recommendations":
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data, err = h.service.jikanClient.GetAnimeRecommendations(ctx, id)
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default:
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http.Error(w, "Invalid section", http.StatusBadRequest)
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return
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}
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if err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("anime details %s error: %v", section, err)
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}
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writeInlineLoadError(w, "Failed to load "+section)
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return
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}
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tplName := "anime_characters"
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if section == "recommendations" {
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tplName = "anime_recommendations"
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}
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// render htmx partial for the section
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if err := templates.GetRenderer().ExecuteFragment(ctx, w, "anime.gohtml", tplName, data); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("fragment render error: %v", err)
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}
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}
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}
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func (h *Handler) HandleHTMLWatchOrder(w http.ResponseWriter, r *http.Request) {
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animeIdStr := r.URL.Query().Get("animeId")
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id, err := strconv.Atoi(animeIdStr)
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if err != nil {
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http.Error(w, `<div class="mt-8 text-sm text-red-400">Invalid anime ID.</div>`, http.StatusBadRequest)
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return
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}
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relations, err := h.service.jikanClient.GetFullRelations(r.Context(), id)
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if err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("watch order error: %v", err)
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}
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http.Error(w, `<div class="mt-8 text-sm text-red-400">Failed to load watch order.</div>`, http.StatusInternalServerError)
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return
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}
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user := middleware.GetUser(r.Context())
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watchlistMap := make(map[int64]bool)
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if user != nil {
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watchlist, _ := h.service.db.GetUserWatchList(r.Context(), user.ID)
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for _, entry := range watchlist {
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watchlistMap[entry.AnimeID] = true
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}
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}
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if err := templates.GetRenderer().ExecuteFragment(r.Context(), w, "anime.gohtml", "watch_order", map[string]any{
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"Relations": relations,
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"AnimeID": id,
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"WatchlistMap": watchlistMap,
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}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("render error: %v", err)
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}
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}
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}
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func (h *Handler) HandleQuickSearch(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "application/json")
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query := r.URL.Query().Get("q")
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if query == "" {
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w.WriteHeader(http.StatusOK)
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if err := writeJSON(w, []quickSearchResult{}); err != nil {
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log.Printf("quick search encode error: %v", err)
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}
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return
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}
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res, err := h.service.jikanClient.SearchAdvanced(r.Context(), query, "", "", "", "", nil, true, 1, 5)
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if err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("quick search error: %v", err)
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}
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w.WriteHeader(http.StatusOK)
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if err := writeJSON(w, []quickSearchResult{}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("quick search encode error: %v", err)
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}
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}
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return
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}
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output := make([]quickSearchResult, len(res.Animes))
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for i, anime := range res.Animes {
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output[i] = quickSearchResult{
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ID: anime.MalID,
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Title: anime.DisplayTitle(),
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Type: anime.Type,
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Image: anime.ImageURL(),
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}
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}
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w.WriteHeader(http.StatusOK)
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if err := writeJSON(w, output); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("quick search encode error: %v", err)
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}
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}
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}
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func (h *Handler) HandleRandomAnime(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Type", "application/json")
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anime, err := h.service.jikanClient.GetRandomAnime(r.Context())
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if err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("random anime error: %v", err)
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}
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w.WriteHeader(http.StatusInternalServerError)
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if err := writeJSON(w, map[string]string{"error": "Failed to fetch random anime"}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("random anime encode error: %v", err)
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}
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}
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return
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}
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if anime.MalID == 0 {
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w.WriteHeader(http.StatusNotFound)
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if err := writeJSON(w, map[string]string{"error": "No anime found"}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("random anime encode error: %v", err)
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}
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}
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return
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}
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w.WriteHeader(http.StatusOK)
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if err := writeJSON(w, map[string]any{"data": anime}); err != nil {
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if !errors.Is(err, context.Canceled) {
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log.Printf("random anime encode error: %v", err)
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}
|
|
}
|
|
}
|
|
|
|
func (h *Handler) HandleSearch(w http.ResponseWriter, r *http.Request) {
|
|
renderNotFoundPage(r, w)
|
|
}
|
|
|
|
func renderNotFoundPage(r *http.Request, w http.ResponseWriter) {
|
|
w.WriteHeader(http.StatusNotFound)
|
|
if err := templates.GetRenderer().ExecuteTemplate(r.Context(), w, "not_found.gohtml", map[string]any{
|
|
"CurrentPath": r.URL.Path,
|
|
}); err != nil {
|
|
if !errors.Is(err, context.Canceled) {
|
|
log.Printf("render error: %v", err)
|
|
}
|
|
http.Error(w, "Internal Server Error", http.StatusInternalServerError)
|
|
}
|
|
}
|
|
|
|
func writeInlineLoadError(w http.ResponseWriter, message string) {
|
|
w.Header().Set("Content-Type", "text/html")
|
|
_, _ = w.Write([]byte(`<p style="color: var(--text-muted); font-size: var(--text-sm);">` + html.EscapeString(message) + `</p>`))
|
|
}
|
|
|
|
func writeJSON(w http.ResponseWriter, v any) error {
|
|
return json.NewEncoder(w).Encode(v)
|
|
}
|
|
|
|
func parsePageParam(r *http.Request) int {
|
|
page, _ := strconv.Atoi(r.URL.Query().Get("page"))
|
|
if page < 1 {
|
|
return 1
|
|
}
|
|
return page
|
|
}
|