package handler

import (
	"net/http"
	"server/internal/model/common"
	"server/internal/model/request"
	"server/internal/pkg/httputil"
	"server/internal/service"
)

type CategoryHandler struct {
	categoryService *service.CategoryService
}

func NewCategoryHandler(categoryService *service.CategoryService) *CategoryHandler {
	return &CategoryHandler{categoryService: categoryService}
}

func (h *CategoryHandler) ListPage(w http.ResponseWriter, r *http.Request) {
	pagination := httputil.Pagination(r)
	list, total, err := h.categoryService.ListPage(r.Context(), pagination)
	if err != nil {
		httputil.Fail(w, err)
		return
	}

	resp := common.PageResponse{
		Page:     pagination.Page,
		PageSize: pagination.PageSize,
		List:     list,
		Total:    total,
	}
	httputil.OkWithPage(w, &resp)
}

func (h *CategoryHandler) ListAll(w http.ResponseWriter, r *http.Request) {
	list, err := h.categoryService.ListAll(r.Context())
	if err != nil {
		httputil.Fail(w, err)
		return
	}

	httputil.Ok(w, list)
}

func (h *CategoryHandler) Create(w http.ResponseWriter, r *http.Request) {
	var req request.CreateCategoryRequest

	if err := httputil.BindJson(r, &req); err != nil {
		httputil.Fail(w, err)
		return
	}

	if err := h.categoryService.Create(r.Context(), req); err != nil {
		httputil.Fail(w, err)
		return
	}

	httputil.Ok(w)
}

func (h *CategoryHandler) Update(w http.ResponseWriter, r *http.Request) {
	id, err := httputil.URLParamInt32(r, "id")
	if err != nil {
		httputil.Fail(w, err)
		return
	}

	var req request.UpdateCategoryRequest
	if err = httputil.BindJson(r, &req); err != nil {
		httputil.Fail(w, err)
		return
	}

	if err = h.categoryService.Update(r.Context(), id, req); err != nil {
		httputil.Fail(w, err)
		return
	}

	httputil.Ok(w)
}

func (h *CategoryHandler) Delete(w http.ResponseWriter, r *http.Request) {
	id, err := httputil.URLParamInt32(r, "id")
	if err != nil {
		httputil.Fail(w, err)
		return
	}

	if err = h.categoryService.Delete(r.Context(), id); err != nil {
		httputil.Fail(w, err)
		return
	}

	httputil.Ok(w)
}