package handlers

import (
	"context"
	"net/http"
	"time"

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

func AdminDashboard(s *hws.Server, conn *bun.DB) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		ctx, cancel := context.WithTimeout(r.Context(), 15*time.Second)
		defer cancel()

		tx, err := conn.BeginTx(ctx, nil)
		if err != nil {
			throwInternalServiceError(s, w, r, "Database error", errors.Wrap(err, "conn.BeginTx"))
			return
		}
		defer func() { _ = tx.Rollback() }()

		users, err := db.GetUsers(ctx, tx, nil)
		if err != nil {
			throwInternalServiceError(s, w, r, "Database error", errors.Wrap(err, "db.GetUsers"))
			return
		}
		_ = tx.Commit()

		renderSafely(page.AdminDashboard(users), s, r, w)
	})
}