refactor: extract anime reviews handler

internal/anime/reviews_handler.go

@@ -0,0 +1,76 @@
+package anime
+
+import (
+	"fmt"
+	"mal/internal/server"
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+)
+
+type reviewsQuery struct {
+	animeID int
+	page    int
+}
+
+func parseReviewsQuery(c *gin.Context) (reviewsQuery, error) {
+	id, err := strconv.Atoi(c.Param("id"))
+	if err != nil || id <= 0 {
+		return reviewsQuery{}, fmt.Errorf("invalid anime id")
+	}
+
+	page, err := strconv.Atoi(c.DefaultQuery("page", "1"))
+	if err != nil {
+		return reviewsQuery{}, fmt.Errorf("invalid page")
+	}
+	if page < 1 {
+		page = 1
+	}
+
+	return reviewsQuery{animeID: id, page: page}, nil
+}
+
+func (h *AnimeHandler) HandleAnimeReviews(c *gin.Context) {
+	query, err := parseReviewsQuery(c)
+	if err != nil {
+		server.RespondHTMLOrJSONError(c, http.StatusBadRequest, err.Error())
+		return
+	}
+
+	reviews, hasNextPage, err := h.svc.GetReviews(c.Request.Context(), query.animeID, query.page)
+	if err != nil {
+		server.RespondError(
+			c,
+			http.StatusInternalServerError,
+			"anime_reviews_fetch_failed",
+			"anime",
+			"failed to load reviews",
+			map[string]any{"anime_id": query.animeID, "page": query.page},
+			err,
+		)
+		return
+	}
+
+	user := server.CurrentUser(c)
+
+	if c.GetHeader("HX-Request") == "true" && query.page > 1 {
+		c.HTML(http.StatusOK, "reviews.gohtml", gin.H{
+			"_fragment":   "review_cards",
+			"Reviews":     reviews,
+			"NextPage":    query.page + 1,
+			"HasNextPage": hasNextPage,
+			"AnimeID":     query.animeID,
+		})
+		return
+	}
+
+	c.HTML(http.StatusOK, "reviews.gohtml", gin.H{
+		"CurrentPath": fmt.Sprintf("/anime/%d/reviews", query.animeID),
+		"Reviews":     reviews,
+		"NextPage":    query.page + 1,
+		"HasNextPage": hasNextPage,
+		"AnimeID":     query.animeID,
+		"User":        user,
+	})
+}