refactor: reorganize project structure following go standards

2026-04-20 15:54:35 +02:00
parent 055ec1fca9
commit 6df8788749
70 changed files with 43 additions and 187 deletions
--- a/api/watchlist/handler.go
+++ b/api/watchlist/handler.go
@@ -0,0 +1,327 @@
+package watchlist
+
+import (
+	"encoding/json"
+	"errors"
+	"log"
+	"net/http"
+	"slices"
+	"strconv"
+
+	"mal/internal/db"
+	"mal/internal/middleware"
+	"mal/web/templates"
+)
+
+type Handler struct {
+	svc *Service
+}
+
+func NewHandler(svc *Service) *Handler {
+	return &Handler{svc: svc}
+}
+
+func requireMethod(w http.ResponseWriter, r *http.Request, method string) bool {
+	if r.Method == method {
+		return true
+	}
+
+	http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+	return false
+}
+
+func (h *Handler) HandleUpdateWatchlist(w http.ResponseWriter, r *http.Request) {
+	if !requireMethod(w, r, http.MethodPost) {
+		return
+	}
+
+	user := middleware.GetUser(r.Context())
+	if user == nil {
+		w.Header().Set("HX-Redirect", "/login")
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		return
+	}
+
+	if err := r.ParseForm(); err != nil {
+		http.Error(w, "invalid form", http.StatusBadRequest)
+		return
+	}
+
+	animeIDStr := r.FormValue("anime_id")
+	animeTitle := r.FormValue("anime_title")
+	animeTitleEnglish := r.FormValue("anime_title_english")
+	animeTitleJapanese := r.FormValue("anime_title_japanese")
+	animeImage := r.FormValue("anime_image")
+	status := r.FormValue("status")
+	airingStr := r.FormValue("airing")
+	airing := airingStr == "true"
+
+	log.Printf("watchlist add: user_id=%s, anime_id=%s, title=%s", user.ID, animeIDStr, animeTitle)
+
+	animeID, err := strconv.ParseInt(animeIDStr, 10, 64)
+	if err != nil || animeID <= 0 {
+		http.Error(w, "invalid anime ID", http.StatusBadRequest)
+		return
+	}
+
+	req := AddRequest{
+		AnimeID:       animeID,
+		TitleOriginal: animeTitle,
+		TitleEnglish:  animeTitleEnglish,
+		TitleJapanese: animeTitleJapanese,
+		ImageURL:      animeImage,
+		Status:        status,
+		Airing:        airing,
+	}
+
+	if err := h.svc.AddEntry(r.Context(), user.ID, req); err != nil {
+		if errors.Is(err, ErrInvalidAnimeID) || errors.Is(err, ErrInvalidStatus) {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+		log.Printf("watchlist add failed: user_id=%s anime_id=%d err=%v", user.ID, animeID, err)
+		http.Error(w, "failed to update watchlist", http.StatusInternalServerError)
+		return
+	}
+
+	templates.WatchlistDropdown(int(animeID), animeTitle, animeTitleEnglish, animeTitleJapanese, animeImage, status, airing).Render(r.Context(), w)
+}
+
+func (h *Handler) HandleDeleteWatchlist(w http.ResponseWriter, r *http.Request) {
+	if !requireMethod(w, r, http.MethodDelete) {
+		return
+	}
+
+	user := middleware.GetUser(r.Context())
+	if user == nil {
+		w.Header().Set("HX-Redirect", "/login")
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		return
+	}
+
+	path := r.URL.Path[len("/api/watchlist/"):]
+	animeID, err := strconv.ParseInt(path, 10, 64)
+	if err != nil || animeID <= 0 {
+		http.Error(w, "invalid anime ID", http.StatusBadRequest)
+		return
+	}
+
+	anime, err := h.svc.RemoveEntry(r.Context(), user.ID, animeID)
+	if err != nil {
+		if errors.Is(err, ErrInvalidAnimeID) {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+		log.Printf("watchlist delete failed: user_id=%s anime_id=%d err=%v", user.ID, animeID, err)
+		http.Error(w, "failed to delete from watchlist", http.StatusInternalServerError)
+		return
+	}
+
+	if r.URL.Query().Get("from") == "watchlist" {
+		w.WriteHeader(http.StatusOK)
+		return
+	}
+
+	title := database.DisplayTitle(anime.TitleEnglish, anime.TitleJapanese, anime.TitleOriginal)
+	airing := false
+	if anime.Airing.Valid {
+		airing = anime.Airing.Bool
+	}
+
+	templates.WatchlistDropdown(int(animeID), anime.TitleOriginal, title, "", anime.ImageUrl, "", airing).Render(r.Context(), w)
+}
+
+func (h *Handler) HandleGetWatchlist(w http.ResponseWriter, r *http.Request) {
+	if !requireMethod(w, r, http.MethodGet) {
+		return
+	}
+
+	layout := r.URL.Query().Get("view")
+	if layout != "grid" && layout != "table" {
+		layout = "grid"
+	}
+
+	statusFilter := r.URL.Query().Get("status")
+	sortBy := r.URL.Query().Get("sort")
+	sortOrder := r.URL.Query().Get("order")
+
+	if sortBy != "title" {
+		sortBy = "date"
+	}
+	if sortOrder != "asc" {
+		sortOrder = "desc"
+	}
+
+	user := middleware.GetUser(r.Context())
+	if user == nil {
+		http.Redirect(w, r, "/login", http.StatusFound)
+		return
+	}
+
+	entries, err := h.svc.GetUserWatchlist(r.Context(), user.ID)
+	if err != nil {
+		log.Printf("watchlist fetch failed: user_id=%s err=%v", user.ID, err)
+		http.Error(w, "failed to fetch watchlist", http.StatusInternalServerError)
+		return
+	}
+
+	var filteredEntries []database.GetUserWatchListRow
+	if statusFilter != "" && statusFilter != "all" {
+		for _, entry := range entries {
+			if entry.Status == statusFilter {
+				filteredEntries = append(filteredEntries, entry)
+			}
+		}
+	} else {
+		statusFilter = "all"
+		filteredEntries = entries
+	}
+
+	// Sort entries
+	h.sortEntries(filteredEntries, sortBy, sortOrder)
+
+	templates.Watchlist(filteredEntries, layout, statusFilter, sortBy, sortOrder).Render(r.Context(), w)
+}
+
+func (h *Handler) HandleContinueWatching(w http.ResponseWriter, r *http.Request) {
+	if !requireMethod(w, r, http.MethodGet) {
+		return
+	}
+
+	user := middleware.GetUser(r.Context())
+	if user == nil {
+		http.Redirect(w, r, "/login", http.StatusFound)
+		return
+	}
+
+	entries, err := h.svc.GetContinueWatching(r.Context(), user.ID)
+	if err != nil {
+		log.Printf("continue watching fetch failed: user_id=%s err=%v", user.ID, err)
+		http.Error(w, "failed to fetch continue watching", http.StatusInternalServerError)
+		return
+	}
+
+	templates.ContinueWatching(entries).Render(r.Context(), w)
+}
+
+func (h *Handler) HandleDeleteContinueWatching(w http.ResponseWriter, r *http.Request) {
+	if !requireMethod(w, r, http.MethodDelete) {
+		return
+	}
+
+	user := middleware.GetUser(r.Context())
+	if user == nil {
+		w.Header().Set("HX-Redirect", "/login")
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		return
+	}
+
+	path := r.URL.Path[len("/api/continue-watching/"):]
+	animeID, err := strconv.ParseInt(path, 10, 64)
+	if err != nil || animeID <= 0 {
+		http.Error(w, "invalid anime ID", http.StatusBadRequest)
+		return
+	}
+
+	if err := h.svc.DeleteContinueWatching(r.Context(), user.ID, animeID); err != nil {
+		log.Printf("continue watching delete failed: user_id=%s anime_id=%d err=%v", user.ID, animeID, err)
+		http.Error(w, "failed to delete continue watching entry", http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+}
+
+func (h *Handler) HandleExportWatchlist(w http.ResponseWriter, r *http.Request) {
+	if !requireMethod(w, r, http.MethodGet) {
+		return
+	}
+
+	user := middleware.GetUser(r.Context())
+	if user == nil {
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		return
+	}
+
+	export, err := h.svc.Export(r.Context(), user.ID)
+	if err != nil {
+		log.Printf("watchlist export failed: user_id=%s err=%v", user.ID, err)
+		http.Error(w, "failed to export", http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Content-Disposition", "attachment; filename=mal-watchlist.json")
+	json.NewEncoder(w).Encode(export)
+}
+
+func (h *Handler) HandleImportWatchlist(w http.ResponseWriter, r *http.Request) {
+	if !requireMethod(w, r, http.MethodPost) {
+		return
+	}
+
+	user := middleware.GetUser(r.Context())
+	if user == nil {
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		return
+	}
+
+	if err := r.ParseMultipartForm(10 << 20); err != nil {
+		http.Error(w, "failed to parse form", http.StatusBadRequest)
+		return
+	}
+
+	file, _, err := r.FormFile("file")
+	if err != nil {
+		http.Error(w, "no file uploaded", http.StatusBadRequest)
+		return
+	}
+	defer file.Close()
+
+	var export ExportData
+	if err := json.NewDecoder(file).Decode(&export); err != nil {
+		http.Error(w, "invalid JSON format", http.StatusBadRequest)
+		return
+	}
+
+	if _, err := h.svc.Import(r.Context(), user.ID, export); err != nil {
+		http.Error(w, "failed to import", http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("HX-Redirect", "/watchlist")
+	w.WriteHeader(http.StatusOK)
+}
+
+func (h *Handler) sortEntries(entries []database.GetUserWatchListRow, sortBy, sortOrder string) {
+	isAsc := sortOrder == "asc"
+
+	switch sortBy {
+	case "title":
+		slices.SortFunc(entries, func(a, b database.GetUserWatchListRow) int {
+			if a.TitleOriginal < b.TitleOriginal {
+				return -1
+			}
+			if a.TitleOriginal > b.TitleOriginal {
+				return 1
+			}
+			return 0
+		})
+		if !isAsc {
+			slices.Reverse(entries)
+		}
+	case "date":
+		slices.SortFunc(entries, func(a, b database.GetUserWatchListRow) int {
+			if a.UpdatedAt.After(b.UpdatedAt) {
+				return -1
+			}
+			if a.UpdatedAt.Before(b.UpdatedAt) {
+				return 1
+			}
+			return 0
+		})
+		if !isAsc {
+			slices.Reverse(entries)
+		}
+	}
+}