spark-server/internal/transport/http/handler/favorite/handler.go

package favhandler

import (
	"strconv"

	"github.com/gin-gonic/gin"

	favlogic "spark-server/internal/module/favorite/logic"
	"spark-server/internal/pkg/errs"
	"spark-server/internal/pkg/reqctx"
	"spark-server/internal/transport/http/respond"
)

// Handler is the favorites HTTP controller.
type Handler struct {
	favs *favlogic.Service
}

func New(favs *favlogic.Service) *Handler {
	return &Handler{favs: favs}
}

func (h *Handler) Create(c *gin.Context) {
	uid, ok := currentUID(c)
	if !ok {
		return
	}
	var in favlogic.CreateInput
	if err := respond.BindJSON(c, &in); err != nil {
		respond.JSONError(c, err)
		return
	}
	out, err := h.favs.Create(c.Request.Context(), uid, &in)
	if err != nil {
		respond.JSONError(c, err)
		return
	}
	respond.JSON(c, out)
}

func (h *Handler) List(c *gin.Context) {
	uid, ok := currentUID(c)
	if !ok {
		return
	}
	limit, _ := strconv.Atoi(c.Query("limit"))
	out, err := h.favs.List(c.Request.Context(), uid, limit)
	if err != nil {
		respond.JSONError(c, err)
		return
	}
	respond.JSON(c, out)
}

func (h *Handler) Delete(c *gin.Context) {
	uid, ok := currentUID(c)
	if !ok {
		return
	}
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil || id <= 0 {
		respond.JSONError(c, errs.ErrInvalidArgument)
		return
	}
	if err := h.favs.Delete(c.Request.Context(), uid, id); err != nil {
		respond.JSONError(c, err)
		return
	}
	respond.JSON(c, gin.H{})
}

func currentUID(c *gin.Context) (int64, bool) {
	rc := reqctx.From(c.Request.Context())
	if rc == nil || rc.UserID <= 0 {
		respond.JSONError(c, errs.ErrUnauthorized)
		return 0, false
	}
	return rc.UserID, true
}