package admin

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

	"github.com/go-chi/chi/v5"
)

type CategoryHandler struct {
	categoryService *admin.CategoryService
}

var _ router.Registrar = (*CategoryHandler)(nil)

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

func (h *CategoryHandler) Register(r chi.Router) {
	r.Route("/categories", func(r chi.Router) {
		r.Get("/", h.List)
		r.Get("/all", h.ListAll)
		r.Post("/", h.Create)
		r.Patch("/{id}", h.Update)
		r.Delete("/{id}", h.Delete)
	})
}

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

	resp := common.PageResponse{
		Page:     pagination.Page,
		PageSize: pagination.PageSize,
		List:     result.List,
		Total:    result.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(w, 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(w, 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)
}