feat: migrate watchlist module to modular domain pattern

internal/watchlist/handler/handler.go

@@ -0,0 +1,95 @@
+package handler
+
+import (
+	"mal/internal/domain"
+	"mal/internal/server"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+type WatchlistHandler struct {
+	svc domain.WatchlistService
+}
+
+func NewWatchlistHandler(svc domain.WatchlistService) *WatchlistHandler {
+	return &WatchlistHandler{svc: svc}
+}
+
+func (h *WatchlistHandler) Register(r *gin.Engine) {
+	r.POST("/api/watchlist", h.HandleUpdateWatchlist)
+	r.DELETE("/api/watchlist/:id", h.HandleDeleteWatchlist)
+	r.DELETE("/api/continue-watching/:id", h.HandleDeleteContinueWatching)
+	r.GET("/watchlist", h.HandleGetWatchlist)
+}
+
+func (h *WatchlistHandler) HandleUpdateWatchlist(c *gin.Context) {
+	userID := "" // TODO: get from auth context
+	animeID, _ := strconv.ParseInt(c.PostForm("anime_id"), 10, 64)
+	status := c.PostForm("status")
+
+	if animeID <= 0 || status == "" {
+		c.Status(http.StatusBadRequest)
+		return
+	}
+
+	err := h.svc.UpdateEntry(c.Request.Context(), userID, animeID, status)
+	if err != nil {
+		c.Status(http.StatusInternalServerError)
+		return
+	}
+
+	c.Status(http.StatusOK)
+}
+
+func (h *WatchlistHandler) HandleDeleteWatchlist(c *gin.Context) {
+	userID := "" // TODO: get from auth context
+	animeID, _ := strconv.ParseInt(c.Param("id"), 10, 64)
+
+	if animeID <= 0 {
+		c.Status(http.StatusBadRequest)
+		return
+	}
+
+	err := h.svc.RemoveEntry(c.Request.Context(), userID, animeID)
+	if err != nil {
+		c.Status(http.StatusInternalServerError)
+		return
+	}
+
+	c.Status(http.StatusOK)
+}
+
+func (h *WatchlistHandler) HandleDeleteContinueWatching(c *gin.Context) {
+	userID := "" // TODO: get from auth context
+	animeID, _ := strconv.ParseInt(c.Param("id"), 10, 64)
+
+	if animeID <= 0 {
+		c.Status(http.StatusBadRequest)
+		return
+	}
+
+	err := h.svc.DeleteContinueWatching(c.Request.Context(), userID, animeID)
+	if err != nil {
+		c.Status(http.StatusInternalServerError)
+		return
+	}
+
+	c.Status(http.StatusOK)
+}
+
+func (h *WatchlistHandler) HandleGetWatchlist(c *gin.Context) {
+	userID := "" // TODO: get from auth context
+	entries, err := h.svc.GetWatchlist(c.Request.Context(), userID)
+	if err != nil {
+		c.Status(http.StatusInternalServerError)
+		return
+	}
+
+	c.HTML(http.StatusOK, "watchlist.gohtml", gin.H{
+		"Entries":     entries,
+		"CurrentPath": "/watchlist",
+	})
+}