using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using bahnplan.web.database;
using bahnplan.web.database.Tables;
using LinqToDB;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;

namespace bahnplan.web.Pages {
	public class DeleteModel : PageModel {
		public User AuthorizedUser;

		public void OnGet() {
			if (HttpContext.Session.GetString("authorized") != "true")
				return;

			var       uid = int.Parse(HttpContext.Session.GetString("uid"));
			using var db  = new Database.DbConn();
			AuthorizedUser = db.Users.FirstOrDefault(p => p.UserId == uid);
			var id = int.Parse(Request.Query["id"]);

			switch (Request.Query["item"]) {
				case "trip": {
					db.Trips.Delete(p => p.TripId == id);
					db.Legs.Delete(p => p.TripId == id);
					break;
				}
				case "leg": {
					var tripid = db.Legs.First(p => p.LegId == id).TripId;
					db.Legs.Delete(p => p.LegId == id);
					if (!db.Legs.Any(p => p.TripId == tripid))
						db.Trips.Delete(p => p.TripId == tripid);
					break;
				}
				case "ticket": {
					db.Legs.Where(p => p.LegId == id).Set(p => p.TicketId, 0).Update();
					break;
				}
				case "card": {
					db.Cards.Delete(p => p.CardId == id);
					break;
				}
			}
		}
	}
}