package quiz

import (
	"context"
	"net/http"

	"forge.cadoles.com/wpetit/kouiz/internal/http/handler/webui/common"
	"forge.cadoles.com/wpetit/kouiz/internal/http/handler/webui/quiz/component"
	"forge.cadoles.com/wpetit/kouiz/internal/store"
	"github.com/a-h/templ"
	"github.com/pkg/errors"
	"gorm.io/gorm"
)

func (h *Handler) getLeadeboardPage(w http.ResponseWriter, r *http.Request) {
	vmodel, err := h.fillLeaderboardPageVModel(r)
	if err != nil {
		h.handleError(w, r, errors.WithStack(err))
		return
	}

	resultPage := component.LeaderboardPage(*vmodel)
	templ.Handler(resultPage).ServeHTTP(w, r)
}

func (h *Handler) fillLeaderboardPageVModel(r *http.Request) (*component.LeaderboardPageVModel, error) {
	vmodel := &component.LeaderboardPageVModel{}

	err := common.FillViewModel(
		r.Context(), vmodel, r,
		h.fillLeaderboardPagePlayer,
		h.fillLeaderboardPagePlayers,
	)
	if err != nil {
		return nil, errors.WithStack(err)
	}

	return vmodel, nil
}

func (h *Handler) fillLeaderboardPagePlayer(ctx context.Context, vmodel *component.LeaderboardPageVModel, r *http.Request) error {
	player, err := h.getRequestPlayer(r)
	if err != nil {
		return errors.WithStack(err)
	}

	vmodel.Player = player

	rank, err := h.store.GetPlayerRank(ctx, player.ID)
	if err != nil {
		return errors.WithStack(err)
	}

	vmodel.PlayerRank = rank

	return nil
}

func (h *Handler) fillLeaderboardPagePlayers(ctx context.Context, vmodel *component.LeaderboardPageVModel, r *http.Request) error {
	err := h.store.Do(ctx, func(db *gorm.DB) error {
		err := db.Model(&store.Player{}).
			Select("id", "name", "score").
			Order("score DESC").Find(&vmodel.Players).
			Error
		if err != nil {
			return errors.WithStack(err)
		}

		return nil
	})
	if err != nil {
		return errors.WithStack(err)
	}

	return nil
}