using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Linq;
using bahnplan.web.database;
using bahnplan.web.database.Tables;
using bahnplan.web.JSON;
using LinqToDB;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Leg = bahnplan.web.database.Tables.Leg;

// ReSharper disable PossibleInvalidOperationException

namespace bahnplan.web.Pages {
	public class OEAPIModel : PageModel {
		public int TripId;

		public void OnGet() {
			
			if (HttpContext.Session.GetString("authorized") != "true") {
				return;
			}
			
			var link      = Request.Query["link"].ToString();
			var shortcode = link;
			if (link.Contains("oeffisear.ch"))
				shortcode = link.Split("/#/").Last();
			var jid = shortcode.Split("/").Last();
			shortcode = shortcode.Split("/").First();

			using var db       = new Database.DbConn();
			var       response = new WebClient().DownloadString($"https://oeffisear.ch/journeys?{{\"reqId\":\"{shortcode}\"}}");

			var parsed = OeapiResponse.FromJson(response);

			var tripId = Request.Query["action"] == "addleg"
				? int.Parse(Request.Query["tripid"])
				: db.InsertWithInt32Identity(new Trip {UserId = int.Parse(HttpContext.Session.GetString("uid"))});

			foreach (var journey in parsed.Data.Journeys[jid].Legs) {
				var arrtime = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
				var deptime = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
				arrtime = arrtime.AddSeconds((long) journey.Arrival.PlannedTime).ToLocalTime();
				deptime = deptime.AddSeconds((long) journey.Departure.PlannedTime).ToLocalTime();
				db.InsertWithInt32Identity(new Leg {
					TripId       = tripId,
					UserId       = int.Parse(HttpContext.Session.GetString("uid")),
					TrainType    = journey.Line.ProductName,
					TrainNr      = int.Parse(journey.Line.TripNum),
					ArrStation   = journey.Arrival.Point.Stop.Name,
					ArrStationId = int.Parse(journey.Arrival.Point.Stop.Id),
					ArrTime      = arrtime.ToString("yyyy-MM-ddTHH:mm:ss"),
					DepStation   = journey.Departure.Point.Stop.Name,
					DepStationId = int.Parse(journey.Departure.Point.Stop.Id),
					DepTime      = deptime.ToString("yyyy-MM-ddTHH:mm:ss"),
				});
			}

			TripId = tripId;
		}
	}
}