package handlers

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

	"git.haelnorr.com/h/golib/hws"
	"git.haelnorr.com/h/oslstats/internal/db"
	"git.haelnorr.com/h/oslstats/internal/throw"
	teamsview "git.haelnorr.com/h/oslstats/internal/view/teamsview"
	"github.com/pkg/errors"
	"github.com/uptrace/bun"
)

// TeamDetailPage renders the global team detail page showing cross-season stats
func TeamDetailPage(
	s *hws.Server,
	conn *db.DB,
) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		teamIDStr := r.PathValue("team_id")

		teamID, err := strconv.Atoi(teamIDStr)
		if err != nil {
			throw.NotFound(s, w, r, r.URL.Path)
			return
		}

		var team *db.Team
		var seasonInfos []*db.TeamSeasonInfo
		var playerStats []*db.TeamAllTimePlayerStats

		if ok := conn.WithReadTx(s, w, r, func(ctx context.Context, tx bun.Tx) (bool, error) {
			var err error
			team, err = db.GetTeam(ctx, tx, teamID)
			if err != nil {
				if db.IsBadRequest(err) {
					throw.NotFound(s, w, r, r.URL.Path)
					return false, nil
				}
				return false, errors.Wrap(err, "db.GetTeam")
			}

			seasonInfos, err = db.GetTeamSeasonParticipation(ctx, tx, teamID)
			if err != nil {
				return false, errors.Wrap(err, "db.GetTeamSeasonParticipation")
			}

			playerStats, err = db.GetTeamAllTimePlayerStats(ctx, tx, teamID)
			if err != nil {
				return false, errors.Wrap(err, "db.GetTeamAllTimePlayerStats")
			}

			return true, nil
		}); !ok {
			return
		}

		activeTab := r.URL.Query().Get("tab")
		if activeTab != "seasons" && activeTab != "stats" {
			activeTab = "seasons"
		}

		renderSafely(teamsview.DetailPage(team, seasonInfos, playerStats, activeTab), s, r, w)
	})
}