package api

import (
	"context"
	"net/http"
	"strconv"

	"git.brettb.xyz/goinv/server/internal/types"
	"github.com/go-chi/chi/v5"
	"github.com/go-chi/render"
)

func (s *APIServer) setupBuildingRoutes() func(chi.Router) {
	return func(r chi.Router) {
		r.Get("/", makeHandler(s.getBuildings))

		r.Route("/{buildingId}", func(r chi.Router) {
			r.Use(s.BuildingCtx)
		})
	}
}

func (s *APIServer) BuildingCtx(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		buildingIdStr := chi.URLParam(r, "buildingId")
		buildingId, err := strconv.ParseUint(buildingIdStr, 10, 64)
		if err != nil {
			render.Render(w, r, errNotFound)
			return
		}
		building, err := s.db.GetBuildingByID(buildingId)
		if err != nil {
			render.Render(w, r, errNotFound)
			return
		}
		ctx := context.WithValue(r.Context(), "building", building)
		next.ServeHTTP(w, r.WithContext(ctx))
	})
}

func (s *APIServer) getBuildings(w http.ResponseWriter, r *http.Request) error {
	buildings, err := s.db.GetBuildings(0, 10)
	if err != nil {
		return err
	}

	total, err := s.db.TotalBuildings()
	if err != nil {
		return err
	}

	return render.Render(w, r, &types.MultipleBuildingResponse{
		Response: &types.Response{
			HTTPStatusCode: http.StatusOK,
		},
		Buildings: buildings,
		Total:     total,
	})
}

func (s *APIServer) getBuilding(w http.ResponseWriter, r *http.Request) error {
	ctx := r.Context()
	building, ok := ctx.Value("building").(*types.Building)
	if !ok {
		return render.Render(w, r, errUnprocessable)
	}

	return render.Render(w, r, &types.BuildingResponse{
		Response: &types.Response{
			HTTPStatusCode: http.StatusOK,
		},
		Building: building,
	})
}