GPG Key ID:
C1980A470C3EE5B1
2 changed files with 562 additions and 555 deletions
@ -1,316 +1,318 @@
|
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using System; |
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using System.Collections.Generic; |
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using System.Text.Json; |
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using System.Text.Json.Serialization; |
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using InfoferScraper.Models.Status; |
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using InfoferScraper.Models.Train.JsonConverters; |
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namespace InfoferScraper.Models.Train { |
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#region Interfaces |
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public interface ITrainScrapeResult { |
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public string Rank { get; } |
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public string Number { get; } |
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/// <summary> |
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/// Date in the DD.MM.YYYY format |
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/// This date is taken as-is from the result. |
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/// </summary> |
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public string Date { get; } |
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public string Operator { get; } |
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public IReadOnlyList<ITrainGroup> Groups { get; } |
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} |
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public interface ITrainGroup { |
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public ITrainRoute Route { get; } |
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public ITrainStatus? Status { get; } |
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public IReadOnlyList<ITrainStopDescription> Stations { get; } |
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} |
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public interface ITrainRoute { |
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public string From { get; } |
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public string To { get; } |
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} |
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public interface ITrainStatus { |
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public int Delay { get; } |
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public string Station { get; } |
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public StatusKind State { get; } |
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} |
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public interface ITrainStopDescription { |
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public string Name { get; } |
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public int Km { get; } |
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/// <summary> |
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/// The time the train waits in the station in seconds |
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/// </summary> |
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public int? StoppingTime { get; } |
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public string? Platform { get; } |
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public ITrainStopArrDep? Arrival { get; } |
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public ITrainStopArrDep? Departure { get; } |
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public IReadOnlyList<object> Notes { get; } |
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} |
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public interface ITrainStopNote { |
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public NoteKind Kind { get; } |
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} |
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public interface ITrainStopTrainNumberChangeNote : ITrainStopNote { |
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public string Rank { get; } |
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public string Number { get; } |
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} |
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public interface ITrainStopDepartsAsNote : ITrainStopNote { |
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public string Rank { get; } |
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public string Number { get; } |
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public DateTimeOffset DepartureDate { get; } |
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} |
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public interface ITrainStopDetachingWagonsNote : ITrainStopNote { |
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public string Station { get; } |
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} |
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public interface ITrainStopReceivingWagonsNote : ITrainStopNote { |
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public string Station { get; } |
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} |
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public interface ITrainStopArrDep { |
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public DateTimeOffset ScheduleTime { get; } |
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public IStatus? Status { get; } |
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} |
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#endregion |
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[JsonConverter(typeof(StatusKindConverter))] |
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public enum StatusKind { |
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Passing, |
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Arrival, |
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Departure, |
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} |
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[JsonConverter(typeof(NoteKindConverter))] |
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public enum NoteKind { |
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TrainNumberChange, |
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DetachingWagons, |
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ReceivingWagons, |
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DepartsAs, |
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} |
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#region Implementations |
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internal record TrainScrapeResult : ITrainScrapeResult { |
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private List<ITrainGroup> ModifyableGroups { get; set; } = new(); |
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public string Rank { get; set; } = ""; |
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public string Number { get; set; } = ""; |
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public string Date { get; set; } = ""; |
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public string Operator { get; set; } = ""; |
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public IReadOnlyList<ITrainGroup> Groups => ModifyableGroups.AsReadOnly(); |
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private void AddTrainGroup(ITrainGroup trainGroup) { |
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ModifyableGroups.Add(trainGroup); |
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} |
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internal void AddTrainGroup(Action<TrainGroup> configurator) { |
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TrainGroup newTrainGroup = new(); |
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configurator(newTrainGroup); |
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AddTrainGroup(newTrainGroup); |
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} |
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} |
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internal record TrainGroup : ITrainGroup { |
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private List<ITrainStopDescription> ModifyableStations { get; set; } = new(); |
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public ITrainRoute Route { get; init; } = new TrainRoute(); |
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public ITrainStatus? Status { get; private set; } |
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public IReadOnlyList<ITrainStopDescription> Stations => ModifyableStations.AsReadOnly(); |
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private void AddStopDescription(ITrainStopDescription stopDescription) { |
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ModifyableStations.Add(stopDescription); |
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} |
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internal void AddStopDescription(Action<TrainStopDescription> configurator) { |
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TrainStopDescription newStopDescription = new(); |
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configurator(newStopDescription); |
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AddStopDescription(newStopDescription); |
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} |
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internal void ConfigureRoute(Action<TrainRoute> configurator) { |
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configurator((TrainRoute)Route); |
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} |
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internal void MakeStatus(Action<TrainStatus> configurator) { |
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TrainStatus newStatus = new(); |
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configurator(newStatus); |
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Status = newStatus; |
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} |
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} |
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internal record TrainRoute : ITrainRoute { |
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public TrainRoute() { |
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From = ""; |
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To = ""; |
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} |
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public string From { get; set; } |
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public string To { get; set; } |
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} |
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internal record TrainStatus : ITrainStatus { |
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public int Delay { get; set; } |
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public string Station { get; set; } = ""; |
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public StatusKind State { get; set; } |
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} |
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internal record TrainStopDescription : ITrainStopDescription { |
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private List<ITrainStopNote> ModifyableNotes { get; } = new(); |
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public string Name { get; set; } = ""; |
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public int Km { get; set; } |
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public int? StoppingTime { get; set; } |
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public string? Platform { get; set; } |
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public ITrainStopArrDep? Arrival { get; private set; } |
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public ITrainStopArrDep? Departure { get; private set; } |
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public IReadOnlyList<object> Notes => ModifyableNotes.AsReadOnly(); |
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internal void MakeArrival(Action<TrainStopArrDep> configurator) { |
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TrainStopArrDep newArrival = new(); |
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configurator(newArrival); |
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Arrival = newArrival; |
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} |
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internal void MakeDeparture(Action<TrainStopArrDep> configurator) { |
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TrainStopArrDep newDeparture = new(); |
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configurator(newDeparture); |
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Departure = newDeparture; |
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} |
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class DepartsAsNote : ITrainStopDepartsAsNote { |
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public NoteKind Kind => NoteKind.DepartsAs; |
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public string Rank { get; set; } = ""; |
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public string Number { get; set; } = ""; |
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public DateTimeOffset DepartureDate { get; set; } |
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} |
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class TrainNumberChangeNote : ITrainStopTrainNumberChangeNote { |
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public NoteKind Kind => NoteKind.TrainNumberChange; |
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public string Rank { get; set; } = ""; |
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public string Number { get; set; } = ""; |
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} |
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class ReceivingWagonsNote : ITrainStopReceivingWagonsNote { |
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public NoteKind Kind => NoteKind.ReceivingWagons; |
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public string Station { get; set; } = ""; |
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} |
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class DetachingWagonsNote : ITrainStopReceivingWagonsNote { |
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public NoteKind Kind => NoteKind.DetachingWagons; |
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public string Station { get; set; } = ""; |
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} |
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internal void AddDepartsAsNote(string rank, string number, DateTimeOffset departureDate) { |
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ModifyableNotes.Add(new DepartsAsNote { Rank = rank, Number = number, DepartureDate = departureDate }); |
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} |
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internal void AddTrainNumberChangeNote(string rank, string number) { |
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ModifyableNotes.Add(new TrainNumberChangeNote { Rank = rank, Number = number }); |
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} |
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internal void AddReceivingWagonsNote(string station) { |
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ModifyableNotes.Add(new ReceivingWagonsNote { Station = station }); |
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} |
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internal void AddDetachingWagonsNote(string station) { |
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ModifyableNotes.Add(new DetachingWagonsNote { Station = station }); |
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} |
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} |
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public record TrainStopArrDep : ITrainStopArrDep { |
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public DateTimeOffset ScheduleTime { get; set; } |
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public IStatus? Status { get; private set; } |
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internal void MakeStatus(Action<Status.Status> configurator) { |
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Status.Status newStatus = new(); |
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configurator(newStatus); |
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Status = newStatus; |
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} |
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} |
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#endregion |
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#region JSON Converters |
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namespace JsonConverters { |
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internal class StatusKindConverter : JsonConverterFactory { |
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public override bool CanConvert(Type typeToConvert) { |
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return typeToConvert == typeof(StatusKind); |
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} |
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public override JsonConverter? CreateConverter(Type typeToConvert, JsonSerializerOptions options) { |
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return new Converter(); |
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} |
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private class Converter : JsonConverter<StatusKind> { |
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public override StatusKind Read( |
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ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options |
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) { |
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return reader.GetString() switch { |
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"arrival" => StatusKind.Arrival, |
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"departure" => StatusKind.Departure, |
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"passing" => StatusKind.Passing, |
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_ => throw new NotImplementedException() |
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}; |
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} |
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public override void Write(Utf8JsonWriter writer, StatusKind value, JsonSerializerOptions options) { |
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writer.WriteStringValue(value switch { |
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StatusKind.Passing => "passing", |
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StatusKind.Arrival => "arrival", |
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StatusKind.Departure => "departure", |
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_ => throw new NotImplementedException() |
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}); |
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} |
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} |
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} |
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internal class NoteKindConverter : JsonConverterFactory { |
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public override bool CanConvert(Type typeToConvert) { |
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return typeToConvert == typeof(NoteKind); |
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} |
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public override JsonConverter? CreateConverter(Type typeToConvert, JsonSerializerOptions options) { |
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return new Converter(); |
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} |
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private class Converter : JsonConverter<NoteKind> { |
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public override NoteKind Read( |
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ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options |
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) { |
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return reader.GetString() switch { |
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"departsAs" => NoteKind.DepartsAs, |
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"trainNumberChange" => NoteKind.TrainNumberChange, |
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"receivingWagons" => NoteKind.ReceivingWagons, |
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"detachingWagons" => NoteKind.DetachingWagons, |
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_ => throw new NotImplementedException() |
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}; |
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} |
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public override void Write(Utf8JsonWriter writer, NoteKind value, JsonSerializerOptions options) { |
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writer.WriteStringValue(value switch { |
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NoteKind.DepartsAs => "departsAs", |
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NoteKind.TrainNumberChange => "trainNumberChange", |
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NoteKind.DetachingWagons => "detachingWagons", |
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NoteKind.ReceivingWagons => "receivingWagons", |
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_ => throw new NotImplementedException() |
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}); |
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} |
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} |
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} |
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} |
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#endregion |
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} |
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using System; |
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using System.Collections.Generic; |
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using System.Text.Json; |
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using System.Text.Json.Serialization; |
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using InfoferScraper.Models.Status; |
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using InfoferScraper.Models.Train.JsonConverters; |
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namespace InfoferScraper.Models.Train { |
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#region Interfaces |
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|
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public interface ITrainScrapeResult { |
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public string Rank { get; } |
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public string Number { get; } |
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/// <summary> |
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/// Date in the DD.MM.YYYY format |
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/// This date is taken as-is from the result. |
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/// </summary> |
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public string Date { get; } |
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|
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public string Operator { get; } |
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public IReadOnlyList<ITrainGroup> Groups { get; } |
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} |
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public interface ITrainGroup { |
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public ITrainRoute Route { get; } |
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public ITrainStatus? Status { get; } |
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public IReadOnlyList<ITrainStopDescription> Stations { get; } |
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} |
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public interface ITrainRoute { |
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public string From { get; } |
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public string To { get; } |
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} |
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|
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public interface ITrainStatus { |
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public int Delay { get; } |
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public string Station { get; } |
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public StatusKind State { get; } |
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} |
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|
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public interface ITrainStopDescription { |
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public string Name { get; } |
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public string LinkName { get; } |
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public int Km { get; } |
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/// <summary> |
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/// The time the train waits in the station in seconds |
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/// </summary> |
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public int? StoppingTime { get; } |
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public string? Platform { get; } |
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public ITrainStopArrDep? Arrival { get; } |
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public ITrainStopArrDep? Departure { get; } |
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public IReadOnlyList<object> Notes { get; } |
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} |
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public interface ITrainStopNote { |
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public NoteKind Kind { get; } |
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} |
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public interface ITrainStopTrainNumberChangeNote : ITrainStopNote { |
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public string Rank { get; } |
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public string Number { get; } |
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} |
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public interface ITrainStopDepartsAsNote : ITrainStopNote { |
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public string Rank { get; } |
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public string Number { get; } |
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public DateTimeOffset DepartureDate { get; } |
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} |
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public interface ITrainStopDetachingWagonsNote : ITrainStopNote { |
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public string Station { get; } |
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} |
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public interface ITrainStopReceivingWagonsNote : ITrainStopNote { |
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public string Station { get; } |
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} |
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public interface ITrainStopArrDep { |
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public DateTimeOffset ScheduleTime { get; } |
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public IStatus? Status { get; } |
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} |
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#endregion |
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[JsonConverter(typeof(StatusKindConverter))] |
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public enum StatusKind { |
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Passing, |
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Arrival, |
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Departure, |
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} |
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[JsonConverter(typeof(NoteKindConverter))] |
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public enum NoteKind { |
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TrainNumberChange, |
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DetachingWagons, |
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ReceivingWagons, |
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DepartsAs, |
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} |
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|
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#region Implementations |
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internal record TrainScrapeResult : ITrainScrapeResult { |
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private List<ITrainGroup> ModifyableGroups { get; set; } = new(); |
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public string Rank { get; set; } = ""; |
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public string Number { get; set; } = ""; |
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public string Date { get; set; } = ""; |
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public string Operator { get; set; } = ""; |
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public IReadOnlyList<ITrainGroup> Groups => ModifyableGroups.AsReadOnly(); |
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private void AddTrainGroup(ITrainGroup trainGroup) { |
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ModifyableGroups.Add(trainGroup); |
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} |
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internal void AddTrainGroup(Action<TrainGroup> configurator) { |
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TrainGroup newTrainGroup = new(); |
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configurator(newTrainGroup); |
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AddTrainGroup(newTrainGroup); |
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} |
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} |
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internal record TrainGroup : ITrainGroup { |
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private List<ITrainStopDescription> ModifyableStations { get; set; } = new(); |
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public ITrainRoute Route { get; init; } = new TrainRoute(); |
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public ITrainStatus? Status { get; private set; } |
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public IReadOnlyList<ITrainStopDescription> Stations => ModifyableStations.AsReadOnly(); |
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private void AddStopDescription(ITrainStopDescription stopDescription) { |
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ModifyableStations.Add(stopDescription); |
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} |
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internal void AddStopDescription(Action<TrainStopDescription> configurator) { |
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TrainStopDescription newStopDescription = new(); |
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configurator(newStopDescription); |
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AddStopDescription(newStopDescription); |
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} |
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internal void ConfigureRoute(Action<TrainRoute> configurator) { |
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configurator((TrainRoute)Route); |
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} |
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internal void MakeStatus(Action<TrainStatus> configurator) { |
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TrainStatus newStatus = new(); |
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configurator(newStatus); |
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Status = newStatus; |
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} |
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} |
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|
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internal record TrainRoute : ITrainRoute { |
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public TrainRoute() { |
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From = ""; |
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To = ""; |
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} |
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|
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public string From { get; set; } |
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public string To { get; set; } |
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} |
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internal record TrainStatus : ITrainStatus { |
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public int Delay { get; set; } |
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public string Station { get; set; } = ""; |
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public StatusKind State { get; set; } |
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} |
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|
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internal record TrainStopDescription : ITrainStopDescription { |
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private List<ITrainStopNote> ModifyableNotes { get; } = new(); |
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public string Name { get; set; } = ""; |
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public string LinkName { get; set; } = ""; |
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public int Km { get; set; } |
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public int? StoppingTime { get; set; } |
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public string? Platform { get; set; } |
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public ITrainStopArrDep? Arrival { get; private set; } |
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public ITrainStopArrDep? Departure { get; private set; } |
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public IReadOnlyList<object> Notes => ModifyableNotes.AsReadOnly(); |
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internal void MakeArrival(Action<TrainStopArrDep> configurator) { |
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TrainStopArrDep newArrival = new(); |
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configurator(newArrival); |
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Arrival = newArrival; |
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} |
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|
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internal void MakeDeparture(Action<TrainStopArrDep> configurator) { |
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TrainStopArrDep newDeparture = new(); |
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configurator(newDeparture); |
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Departure = newDeparture; |
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} |
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|
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class DepartsAsNote : ITrainStopDepartsAsNote { |
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public NoteKind Kind => NoteKind.DepartsAs; |
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public string Rank { get; set; } = ""; |
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public string Number { get; set; } = ""; |
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public DateTimeOffset DepartureDate { get; set; } |
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} |
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|
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class TrainNumberChangeNote : ITrainStopTrainNumberChangeNote { |
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public NoteKind Kind => NoteKind.TrainNumberChange; |
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public string Rank { get; set; } = ""; |
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public string Number { get; set; } = ""; |
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} |
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|
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class ReceivingWagonsNote : ITrainStopReceivingWagonsNote { |
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public NoteKind Kind => NoteKind.ReceivingWagons; |
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public string Station { get; set; } = ""; |
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} |
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|
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class DetachingWagonsNote : ITrainStopReceivingWagonsNote { |
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public NoteKind Kind => NoteKind.DetachingWagons; |
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public string Station { get; set; } = ""; |
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} |
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|
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internal void AddDepartsAsNote(string rank, string number, DateTimeOffset departureDate) { |
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ModifyableNotes.Add(new DepartsAsNote { Rank = rank, Number = number, DepartureDate = departureDate }); |
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} |
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|
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internal void AddTrainNumberChangeNote(string rank, string number) { |
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ModifyableNotes.Add(new TrainNumberChangeNote { Rank = rank, Number = number }); |
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} |
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|
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internal void AddReceivingWagonsNote(string station) { |
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ModifyableNotes.Add(new ReceivingWagonsNote { Station = station }); |
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} |
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|
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internal void AddDetachingWagonsNote(string station) { |
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ModifyableNotes.Add(new DetachingWagonsNote { Station = station }); |
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} |
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} |
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|
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public record TrainStopArrDep : ITrainStopArrDep { |
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public DateTimeOffset ScheduleTime { get; set; } |
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public IStatus? Status { get; private set; } |
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|
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internal void MakeStatus(Action<Status.Status> configurator) { |
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Status.Status newStatus = new(); |
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configurator(newStatus); |
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Status = newStatus; |
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} |
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} |
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|
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#endregion |
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|
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#region JSON Converters |
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|
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namespace JsonConverters { |
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internal class StatusKindConverter : JsonConverterFactory { |
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public override bool CanConvert(Type typeToConvert) { |
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return typeToConvert == typeof(StatusKind); |
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} |
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|
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public override JsonConverter? CreateConverter(Type typeToConvert, JsonSerializerOptions options) { |
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return new Converter(); |
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} |
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|
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private class Converter : JsonConverter<StatusKind> { |
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public override StatusKind Read( |
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ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options |
||||
) { |
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return reader.GetString() switch { |
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"arrival" => StatusKind.Arrival, |
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"departure" => StatusKind.Departure, |
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"passing" => StatusKind.Passing, |
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_ => throw new NotImplementedException() |
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}; |
||||
} |
||||
|
||||
public override void Write(Utf8JsonWriter writer, StatusKind value, JsonSerializerOptions options) { |
||||
writer.WriteStringValue(value switch { |
||||
StatusKind.Passing => "passing", |
||||
StatusKind.Arrival => "arrival", |
||||
StatusKind.Departure => "departure", |
||||
_ => throw new NotImplementedException() |
||||
}); |
||||
} |
||||
} |
||||
} |
||||
|
||||
internal class NoteKindConverter : JsonConverterFactory { |
||||
public override bool CanConvert(Type typeToConvert) { |
||||
return typeToConvert == typeof(NoteKind); |
||||
} |
||||
|
||||
public override JsonConverter? CreateConverter(Type typeToConvert, JsonSerializerOptions options) { |
||||
return new Converter(); |
||||
} |
||||
|
||||
private class Converter : JsonConverter<NoteKind> { |
||||
public override NoteKind Read( |
||||
ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options |
||||
) { |
||||
return reader.GetString() switch { |
||||
"departsAs" => NoteKind.DepartsAs, |
||||
"trainNumberChange" => NoteKind.TrainNumberChange, |
||||
"receivingWagons" => NoteKind.ReceivingWagons, |
||||
"detachingWagons" => NoteKind.DetachingWagons, |
||||
_ => throw new NotImplementedException() |
||||
}; |
||||
} |
||||
|
||||
public override void Write(Utf8JsonWriter writer, NoteKind value, JsonSerializerOptions options) { |
||||
writer.WriteStringValue(value switch { |
||||
NoteKind.DepartsAs => "departsAs", |
||||
NoteKind.TrainNumberChange => "trainNumberChange", |
||||
NoteKind.DetachingWagons => "detachingWagons", |
||||
NoteKind.ReceivingWagons => "receivingWagons", |
||||
_ => throw new NotImplementedException() |
||||
}); |
||||
} |
||||
} |
||||
} |
||||
} |
||||
|
||||
#endregion |
||||
} |
||||
|
||||
@ -1,239 +1,244 @@
|
||||
using System; |
||||
using System.Collections.Generic; |
||||
using System.Linq; |
||||
using System.Net; |
||||
using System.Net.Http; |
||||
using System.Text.RegularExpressions; |
||||
using System.Threading.Tasks; |
||||
using AngleSharp; |
||||
using AngleSharp.Dom; |
||||
using AngleSharp.Html.Dom; |
||||
using Flurl; |
||||
using InfoferScraper.Models.Train; |
||||
using NodaTime; |
||||
using NodaTime.Extensions; |
||||
using scraper.Exceptions; |
||||
|
||||
namespace InfoferScraper.Scrapers { |
||||
public static class TrainScraper { |
||||
private const string BaseUrl = "https://mersultrenurilor.infofer.ro/ro-RO/"; |
||||
private static readonly Regex TrainInfoRegex = new(@"^([A-Z-]+)\s([0-9]+)\sîn\s([0-9.]+)$"); |
||||
private static readonly Regex OperatorRegex = new(@"^Operat\sde\s(.+)$"); |
||||
|
||||
private static readonly Regex RouteRegex = |
||||
new(@$"^Parcurs\stren\s([{Utils.RoLetters} ]+)[-–]([{Utils.RoLetters}\s]+)$"); |
||||
|
||||
private static readonly Regex SlRegex = |
||||
new( |
||||
@"^(?:Fără|([0-9]+)\smin)\s(întârziere|mai\sdevreme)\sla\s(trecerea\sfără\soprire\sprin|sosirea\sîn|plecarea\sdin)\s(.+)\.$"); |
||||
|
||||
private static readonly Dictionary<char, StatusKind> SlStateMap = new() { |
||||
{ 't', StatusKind.Passing }, |
||||
{ 's', StatusKind.Arrival }, |
||||
{ 'p', StatusKind.Departure }, |
||||
}; |
||||
|
||||
private static readonly Regex KmRegex = new(@"^km\s([0-9]+)$"); |
||||
private static readonly Regex StoppingTimeRegex = new(@"^([0-9]+)\s(min|sec)\soprire$"); |
||||
private static readonly Regex PlatformRegex = new(@"^linia\s(.+)$"); |
||||
|
||||
private static readonly Regex StationArrdepStatusRegex = |
||||
new(@"^(?:(la timp)|(?:((?:\+|-)[0-9]+) min \((?:(?:întârziere)|(?:mai devreme))\)))(\*?)$"); |
||||
|
||||
private static readonly Regex TrainNumberChangeNoteRegex = |
||||
new(@"^Trenul își schimbă numărul în\s([A-Z-]+)\s([0-9]+)$"); |
||||
private static readonly Regex DepartsAsNoteRegex = |
||||
new(@"^Trenul pleacă cu numărul\s([A-Z-]+)\s([0-9]+)\sîn\s([0-9]{2}).([0-9]{2}).([0-9]{4})$"); |
||||
private static readonly Regex ReceivingWagonsNoteRegex = |
||||
new(@"^Trenul primește vagoane de la\s(.+)\.$"); |
||||
private static readonly Regex DetachingWagonsNoteRegex = |
||||
new(@"^Trenul detașează vagoane pentru stația\s(.+)\.$"); |
||||
|
||||
private static readonly DateTimeZone BucharestTz = DateTimeZoneProviders.Tzdb["Europe/Bucharest"]; |
||||
|
||||
private static readonly CookieContainer CookieContainer = new(); |
||||
private static readonly HttpClient HttpClient = new(new HttpClientHandler { |
||||
CookieContainer = CookieContainer, |
||||
UseCookies = true, |
||||
}) { |
||||
BaseAddress = new Uri(BaseUrl), |
||||
DefaultRequestVersion = new Version(2, 0), |
||||
}; |
||||
|
||||
public static async Task<ITrainScrapeResult?> Scrape(string trainNumber, DateTimeOffset? dateOverride = null) { |
||||
var dateOverrideInstant = dateOverride?.ToInstant().InZone(BucharestTz); |
||||
dateOverride = dateOverrideInstant?.ToDateTimeOffset(); |
||||
TrainScrapeResult result = new(); |
||||
|
||||
var asConfig = Configuration.Default; |
||||
var asContext = BrowsingContext.New(asConfig); |
||||
|
||||
var firstUrl = "Tren" |
||||
.AppendPathSegment(trainNumber); |
||||
if (dateOverride != null) { |
||||
firstUrl = firstUrl.SetQueryParam("Date", $"{dateOverride:d.MM.yyyy}"); |
||||
} |
||||
var firstResponse = await HttpClient.GetStringAsync(firstUrl); |
||||
var firstDocument = await asContext.OpenAsync(req => req.Content(firstResponse)); |
||||
var firstForm = firstDocument.GetElementById("form-search")!; |
||||
|
||||
var firstResult = firstForm |
||||
.QuerySelectorAll<IHtmlInputElement>("input") |
||||
.Where(elem => elem.Name != null) |
||||
.ToDictionary(elem => elem.Name!, elem => elem.Value); |
||||
|
||||
var secondUrl = "".AppendPathSegments("Trains", "TrainsResult"); |
||||
var secondResponse = await HttpClient.PostAsync( |
||||
secondUrl, |
||||
#pragma warning disable CS8620 |
||||
new FormUrlEncodedContent(firstResult) |
||||
#pragma warning restore CS8620 |
||||
); |
||||
var secondResponseContent = await secondResponse.Content.ReadAsStringAsync(); |
||||
var secondDocument = await asContext.OpenAsync( |
||||
req => req.Content(secondResponseContent) |
||||
); |
||||
|
||||
var (trainInfoDiv, (_, (_, (resultsDiv, _)))) = secondDocument |
||||
.QuerySelectorAll("body > div"); |
||||
if (trainInfoDiv == null) { |
||||
return null; |
||||
} |
||||
if (resultsDiv == null) { |
||||
throw new TrainNotThisDayException(); |
||||
} |
||||
trainInfoDiv = trainInfoDiv.QuerySelectorAll(":scope > div > div").First(); |
||||
|
||||
(result.Rank, (result.Number, (result.Date, _))) = (TrainInfoRegex.Match( |
||||
trainInfoDiv.QuerySelector(":scope > h2")!.Text().WithCollapsedSpaces() |
||||
).Groups as IEnumerable<Group>).Select(group => group.Value).Skip(1); |
||||
var (scrapedDateD, (scrapedDateM, (scrapedDateY, _))) = result.Date |
||||
.Split('.') |
||||
.Select(int.Parse); |
||||
var date = new DateTime(scrapedDateY, scrapedDateM, scrapedDateD); |
||||
|
||||
result.Operator = (OperatorRegex.Match( |
||||
trainInfoDiv.QuerySelector(":scope > p")!.Text().WithCollapsedSpaces() |
||||
).Groups as IEnumerable<Group>).Skip(1).First().Value; |
||||
|
||||
foreach (var groupDiv in resultsDiv.QuerySelectorAll(":scope > div")) { |
||||
result.AddTrainGroup(group => { |
||||
var statusDiv = groupDiv.QuerySelectorAll(":scope > div").First(); |
||||
var routeText = statusDiv.QuerySelector(":scope > h4")!.Text().WithCollapsedSpaces(); |
||||
group.ConfigureRoute(route => { |
||||
(route.From, (route.To, _)) = (RouteRegex.Match(routeText).Groups as IEnumerable<Group>).Skip(1) |
||||
.Select(group => group.Value); |
||||
}); |
||||
|
||||
try { |
||||
var statusLineMatch = |
||||
SlRegex.Match(statusDiv.QuerySelector(":scope > div")!.Text().WithCollapsedSpaces()); |
||||
var (slmDelay, (slmLate, (slmArrival, (slmStation, _)))) = |
||||
(statusLineMatch.Groups as IEnumerable<Group>).Skip(1).Select(group => group.Value); |
||||
group.MakeStatus(status => { |
||||
status.Delay = string.IsNullOrEmpty(slmDelay) ? 0 : |
||||
slmLate == "întârziere" ? int.Parse(slmDelay) : -int.Parse(slmDelay); |
||||
status.Station = slmStation; |
||||
status.State = SlStateMap[slmArrival[0]]; |
||||
}); |
||||
} |
||||
catch { |
||||
// ignored |
||||
} |
||||
|
||||
Utils.DateTimeSequencer dtSeq = new(date.Year, date.Month, date.Day); |
||||
var stations = statusDiv.QuerySelectorAll(":scope > ul > li"); |
||||
foreach (var station in stations) { |
||||
group.AddStopDescription(stopDescription => { |
||||
var (left, (middle, (right, _))) = station |
||||
.QuerySelectorAll(":scope > div > div"); |
||||
var (stopDetails, (stopNotes, _)) = middle |
||||
.QuerySelectorAll(":scope > div > div > div"); |
||||
stopDescription.Name = stopDetails |
||||
.QuerySelectorAll(":scope > div")[0] |
||||
.Text() |
||||
.WithCollapsedSpaces(); |
||||
var scrapedKm = stopDetails |
||||
.QuerySelectorAll(":scope > div")[1] |
||||
.Text() |
||||
.WithCollapsedSpaces(); |
||||
stopDescription.Km = int.Parse( |
||||
(KmRegex.Match(scrapedKm).Groups as IEnumerable<Group>).Skip(1).First().Value |
||||
); |
||||
var scrapedStoppingTime = stopDetails |
||||
.QuerySelectorAll(":scope > div")[2] |
||||
.Text() |
||||
.WithCollapsedSpaces(); |
||||
if (!string.IsNullOrEmpty(scrapedStoppingTime)) { |
||||
var (stValue, (stMinsec, _)) = |
||||
(StoppingTimeRegex.Match(scrapedStoppingTime).Groups as IEnumerable<Group>) |
||||
.Skip(1) |
||||
.Select(group => group.Value); |
||||
stopDescription.StoppingTime = int.Parse(stValue); |
||||
if (stMinsec == "min") stopDescription.StoppingTime *= 60; |
||||
} |
||||
|
||||
var scrapedPlatform = stopDetails |
||||
.QuerySelectorAll(":scope > div")[3] |
||||
.Text() |
||||
.WithCollapsedSpaces(); |
||||
if (!string.IsNullOrEmpty(scrapedPlatform)) |
||||
stopDescription.Platform = PlatformRegex.Match(scrapedPlatform).Groups[1].Value; |
||||
|
||||
void ScrapeTime(IElement element, ref TrainStopArrDep arrDep) { |
||||
var parts = element.QuerySelectorAll(":scope > div > div > div"); |
||||
if (parts.Length == 0) throw new OperationCanceledException(); |
||||
var time = parts[0]; |
||||
var scrapedTime = time.Text().WithCollapsedSpaces(); |
||||
var (stHour, (stMin, _)) = scrapedTime.Split(':').Select(int.Parse); |
||||
arrDep.ScheduleTime = BucharestTz.AtLeniently(dtSeq.Next(stHour, stMin).ToLocalDateTime()) |
||||
.ToDateTimeOffset(); |
||||
|
||||
if (parts.Length < 2) return; |
||||
|
||||
var statusElement = parts[1]; |
||||
var (onTime, (delay, (approx, _))) = (StationArrdepStatusRegex.Match( |
||||
statusElement.Text().WithCollapsedSpaces(replaceWith: " ") |
||||
).Groups as IEnumerable<Group>).Skip(1).Select(group => group.Value); |
||||
arrDep.MakeStatus(status => { |
||||
status.Delay = string.IsNullOrEmpty(onTime) ? int.Parse(delay) : 0; |
||||
status.Real = string.IsNullOrEmpty(approx); |
||||
}); |
||||
} |
||||
|
||||
try { |
||||
stopDescription.MakeArrival(arrival => { ScrapeTime(left, ref arrival); }); |
||||
} |
||||
catch (OperationCanceledException) { } |
||||
|
||||
try { |
||||
stopDescription.MakeDeparture(departure => { ScrapeTime(right, ref departure); }); |
||||
} |
||||
catch (OperationCanceledException) { } |
||||
|
||||
foreach (var noteDiv in stopNotes.QuerySelectorAll(":scope > div > div")) { |
||||
var noteText = noteDiv.Text().WithCollapsedSpaces(); |
||||
Match trainNumberChangeMatch, departsAsMatch, detachingWagons, receivingWagons; |
||||
if ((trainNumberChangeMatch = TrainNumberChangeNoteRegex.Match(noteText)).Success) { |
||||
stopDescription.AddTrainNumberChangeNote(trainNumberChangeMatch.Groups[1].Value, trainNumberChangeMatch.Groups[2].Value); |
||||
} |
||||
else if ((departsAsMatch = DepartsAsNoteRegex.Match(noteText)).Success) { |
||||
var groups = departsAsMatch.Groups; |
||||
var departureDate = BucharestTz.AtStrictly(new(int.Parse(groups[5].Value), int.Parse(groups[4].Value), int.Parse(groups[3].Value), 0, 0)); |
||||
stopDescription.AddDepartsAsNote(groups[1].Value, groups[2].Value, departureDate.ToDateTimeOffset()); |
||||
} |
||||
else if ((detachingWagons = DetachingWagonsNoteRegex.Match(noteText)).Success) { |
||||
stopDescription.AddDetachingWagonsNote(detachingWagons.Groups[1].Value); |
||||
} |
||||
else if ((receivingWagons = ReceivingWagonsNoteRegex.Match(noteText)).Success) { |
||||
stopDescription.AddReceivingWagonsNote(receivingWagons.Groups[1].Value); |
||||
} |
||||
} |
||||
}); |
||||
} |
||||
}); |
||||
} |
||||
return result; |
||||
} |
||||
} |
||||
} // namespace |
||||
using System; |
||||
using System.Collections.Generic; |
||||
using System.Linq; |
||||
using System.Net; |
||||
using System.Net.Http; |
||||
using System.Text.RegularExpressions; |
||||
using System.Threading.Tasks; |
||||
using AngleSharp; |
||||
using AngleSharp.Dom; |
||||
using AngleSharp.Html.Dom; |
||||
using Flurl; |
||||
using InfoferScraper.Models.Train; |
||||
using NodaTime; |
||||
using NodaTime.Extensions; |
||||
using scraper.Exceptions; |
||||
|
||||
namespace InfoferScraper.Scrapers { |
||||
public static class TrainScraper { |
||||
private const string BaseUrl = "https://mersultrenurilor.infofer.ro/ro-RO/"; |
||||
private static readonly Regex TrainInfoRegex = new(@"^([A-Z-]+)\s([0-9]+)\sîn\s([0-9.]+)$"); |
||||
private static readonly Regex OperatorRegex = new(@"^Operat\sde\s(.+)$"); |
||||
|
||||
private static readonly Regex RouteRegex = |
||||
new(@$"^Parcurs\stren\s([{Utils.RoLetters} ]+)[-–]([{Utils.RoLetters}\s]+)$"); |
||||
|
||||
private static readonly Regex SlRegex = |
||||
new( |
||||
@"^(?:Fără|([0-9]+)\smin)\s(întârziere|mai\sdevreme)\sla\s(trecerea\sfără\soprire\sprin|sosirea\sîn|plecarea\sdin)\s(.+)\.$"); |
||||
|
||||
private static readonly Dictionary<char, StatusKind> SlStateMap = new() { |
||||
{ 't', StatusKind.Passing }, |
||||
{ 's', StatusKind.Arrival }, |
||||
{ 'p', StatusKind.Departure }, |
||||
}; |
||||
|
||||
private static readonly Regex KmRegex = new(@"^km\s([0-9]+)$"); |
||||
private static readonly Regex StoppingTimeRegex = new(@"^([0-9]+)\s(min|sec)\soprire$"); |
||||
private static readonly Regex PlatformRegex = new(@"^linia\s(.+)$"); |
||||
|
||||
private static readonly Regex StationArrdepStatusRegex = |
||||
new(@"^(?:(la timp)|(?:((?:\+|-)[0-9]+) min \((?:(?:întârziere)|(?:mai devreme))\)))(\*?)$"); |
||||
|
||||
private static readonly Regex TrainNumberChangeNoteRegex = |
||||
new(@"^Trenul își schimbă numărul în\s([A-Z-]+)\s([0-9]+)$"); |
||||
private static readonly Regex DepartsAsNoteRegex = |
||||
new(@"^Trenul pleacă cu numărul\s([A-Z-]+)\s([0-9]+)\sîn\s([0-9]{2}).([0-9]{2}).([0-9]{4})$"); |
||||
private static readonly Regex ReceivingWagonsNoteRegex = |
||||
new(@"^Trenul primește vagoane de la\s(.+)\.$"); |
||||
private static readonly Regex DetachingWagonsNoteRegex = |
||||
new(@"^Trenul detașează vagoane pentru stația\s(.+)\.$"); |
||||
|
||||
private static readonly DateTimeZone BucharestTz = DateTimeZoneProviders.Tzdb["Europe/Bucharest"]; |
||||
|
||||
private static readonly CookieContainer CookieContainer = new(); |
||||
private static readonly HttpClient HttpClient = new(new HttpClientHandler { |
||||
CookieContainer = CookieContainer, |
||||
UseCookies = true, |
||||
}) { |
||||
BaseAddress = new Uri(BaseUrl), |
||||
DefaultRequestVersion = new Version(2, 0), |
||||
}; |
||||
|
||||
public static async Task<ITrainScrapeResult?> Scrape(string trainNumber, DateTimeOffset? dateOverride = null) { |
||||
var dateOverrideInstant = dateOverride?.ToInstant().InZone(BucharestTz); |
||||
dateOverride = dateOverrideInstant?.ToDateTimeOffset(); |
||||
TrainScrapeResult result = new(); |
||||
|
||||
var asConfig = Configuration.Default; |
||||
var asContext = BrowsingContext.New(asConfig); |
||||
|
||||
var firstUrl = "Tren" |
||||
.AppendPathSegment(trainNumber); |
||||
if (dateOverride != null) { |
||||
firstUrl = firstUrl.SetQueryParam("Date", $"{dateOverride:d.MM.yyyy}"); |
||||
} |
||||
var firstResponse = await HttpClient.GetStringAsync(firstUrl); |
||||
var firstDocument = await asContext.OpenAsync(req => req.Content(firstResponse)); |
||||
var firstForm = firstDocument.GetElementById("form-search")!; |
||||
|
||||
var firstResult = firstForm |
||||
.QuerySelectorAll<IHtmlInputElement>("input") |
||||
.Where(elem => elem.Name != null) |
||||
.ToDictionary(elem => elem.Name!, elem => elem.Value); |
||||
|
||||
var secondUrl = "".AppendPathSegments("Trains", "TrainsResult"); |
||||
var secondResponse = await HttpClient.PostAsync( |
||||
secondUrl, |
||||
#pragma warning disable CS8620 |
||||
new FormUrlEncodedContent(firstResult) |
||||
#pragma warning restore CS8620 |
||||
); |
||||
var secondResponseContent = await secondResponse.Content.ReadAsStringAsync(); |
||||
var secondDocument = await asContext.OpenAsync( |
||||
req => req.Content(secondResponseContent) |
||||
); |
||||
|
||||
var (trainInfoDiv, (_, (_, (resultsDiv, _)))) = secondDocument |
||||
.QuerySelectorAll("body > div"); |
||||
if (trainInfoDiv == null) { |
||||
return null; |
||||
} |
||||
if (resultsDiv == null) { |
||||
throw new TrainNotThisDayException(); |
||||
} |
||||
trainInfoDiv = trainInfoDiv.QuerySelectorAll(":scope > div > div").First(); |
||||
|
||||
(result.Rank, (result.Number, (result.Date, _))) = (TrainInfoRegex.Match( |
||||
trainInfoDiv.QuerySelector(":scope > h2")!.Text().WithCollapsedSpaces() |
||||
).Groups as IEnumerable<Group>).Select(group => group.Value).Skip(1); |
||||
var (scrapedDateD, (scrapedDateM, (scrapedDateY, _))) = result.Date |
||||
.Split('.') |
||||
.Select(int.Parse); |
||||
var date = new DateTime(scrapedDateY, scrapedDateM, scrapedDateD); |
||||
|
||||
result.Operator = (OperatorRegex.Match( |
||||
trainInfoDiv.QuerySelector(":scope > p")!.Text().WithCollapsedSpaces() |
||||
).Groups as IEnumerable<Group>).Skip(1).First().Value; |
||||
|
||||
foreach (var groupDiv in resultsDiv.QuerySelectorAll(":scope > div")) { |
||||
result.AddTrainGroup(group => { |
||||
var statusDiv = groupDiv.QuerySelectorAll(":scope > div").First(); |
||||
var routeText = statusDiv.QuerySelector(":scope > h4")!.Text().WithCollapsedSpaces(); |
||||
group.ConfigureRoute(route => { |
||||
(route.From, (route.To, _)) = (RouteRegex.Match(routeText).Groups as IEnumerable<Group>).Skip(1) |
||||
.Select(group => group.Value); |
||||
}); |
||||
|
||||
try { |
||||
var statusLineMatch = |
||||
SlRegex.Match(statusDiv.QuerySelector(":scope > div")!.Text().WithCollapsedSpaces()); |
||||
var (slmDelay, (slmLate, (slmArrival, (slmStation, _)))) = |
||||
(statusLineMatch.Groups as IEnumerable<Group>).Skip(1).Select(group => group.Value); |
||||
group.MakeStatus(status => { |
||||
status.Delay = string.IsNullOrEmpty(slmDelay) ? 0 : |
||||
slmLate == "întârziere" ? int.Parse(slmDelay) : -int.Parse(slmDelay); |
||||
status.Station = slmStation; |
||||
status.State = SlStateMap[slmArrival[0]]; |
||||
}); |
||||
} |
||||
catch { |
||||
// ignored |
||||
} |
||||
|
||||
Utils.DateTimeSequencer dtSeq = new(date.Year, date.Month, date.Day); |
||||
var stations = statusDiv.QuerySelectorAll(":scope > ul > li"); |
||||
foreach (var station in stations) { |
||||
group.AddStopDescription(stopDescription => { |
||||
var (left, (middle, (right, _))) = station |
||||
.QuerySelectorAll(":scope > div > div"); |
||||
var (stopDetails, (stopNotes, _)) = middle |
||||
.QuerySelectorAll(":scope > div > div > div"); |
||||
stopDescription.Name = stopDetails |
||||
.QuerySelectorAll(":scope > div")[0] |
||||
.Text() |
||||
.WithCollapsedSpaces(); |
||||
stopDescription.LinkName = new Flurl.Url(stopDetails |
||||
.QuerySelectorAll(":scope > div")[0] |
||||
.QuerySelector(":scope a") |
||||
.Attributes["href"] |
||||
.Value).PathSegments.Last(); |
||||
var scrapedKm = stopDetails |
||||
.QuerySelectorAll(":scope > div")[1] |
||||
.Text() |
||||
.WithCollapsedSpaces(); |
||||
stopDescription.Km = int.Parse( |
||||
(KmRegex.Match(scrapedKm).Groups as IEnumerable<Group>).Skip(1).First().Value |
||||
); |
||||
var scrapedStoppingTime = stopDetails |
||||
.QuerySelectorAll(":scope > div")[2] |
||||
.Text() |
||||
.WithCollapsedSpaces(); |
||||
if (!string.IsNullOrEmpty(scrapedStoppingTime)) { |
||||
var (stValue, (stMinsec, _)) = |
||||
(StoppingTimeRegex.Match(scrapedStoppingTime).Groups as IEnumerable<Group>) |
||||
.Skip(1) |
||||
.Select(group => group.Value); |
||||
stopDescription.StoppingTime = int.Parse(stValue); |
||||
if (stMinsec == "min") stopDescription.StoppingTime *= 60; |
||||
} |
||||
|
||||
var scrapedPlatform = stopDetails |
||||
.QuerySelectorAll(":scope > div")[3] |
||||
.Text() |
||||
.WithCollapsedSpaces(); |
||||
if (!string.IsNullOrEmpty(scrapedPlatform)) |
||||
stopDescription.Platform = PlatformRegex.Match(scrapedPlatform).Groups[1].Value; |
||||
|
||||
void ScrapeTime(IElement element, ref TrainStopArrDep arrDep) { |
||||
var parts = element.QuerySelectorAll(":scope > div > div > div"); |
||||
if (parts.Length == 0) throw new OperationCanceledException(); |
||||
var time = parts[0]; |
||||
var scrapedTime = time.Text().WithCollapsedSpaces(); |
||||
var (stHour, (stMin, _)) = scrapedTime.Split(':').Select(int.Parse); |
||||
arrDep.ScheduleTime = BucharestTz.AtLeniently(dtSeq.Next(stHour, stMin).ToLocalDateTime()) |
||||
.ToDateTimeOffset(); |
||||
|
||||
if (parts.Length < 2) return; |
||||
|
||||
var statusElement = parts[1]; |
||||
var (onTime, (delay, (approx, _))) = (StationArrdepStatusRegex.Match( |
||||
statusElement.Text().WithCollapsedSpaces(replaceWith: " ") |
||||
).Groups as IEnumerable<Group>).Skip(1).Select(group => group.Value); |
||||
arrDep.MakeStatus(status => { |
||||
status.Delay = string.IsNullOrEmpty(onTime) ? int.Parse(delay) : 0; |
||||
status.Real = string.IsNullOrEmpty(approx); |
||||
}); |
||||
} |
||||
|
||||
try { |
||||
stopDescription.MakeArrival(arrival => { ScrapeTime(left, ref arrival); }); |
||||
} |
||||
catch (OperationCanceledException) { } |
||||
|
||||
try { |
||||
stopDescription.MakeDeparture(departure => { ScrapeTime(right, ref departure); }); |
||||
} |
||||
catch (OperationCanceledException) { } |
||||
|
||||
foreach (var noteDiv in stopNotes.QuerySelectorAll(":scope > div > div")) { |
||||
var noteText = noteDiv.Text().WithCollapsedSpaces(); |
||||
Match trainNumberChangeMatch, departsAsMatch, detachingWagons, receivingWagons; |
||||
if ((trainNumberChangeMatch = TrainNumberChangeNoteRegex.Match(noteText)).Success) { |
||||
stopDescription.AddTrainNumberChangeNote(trainNumberChangeMatch.Groups[1].Value, trainNumberChangeMatch.Groups[2].Value); |
||||
} |
||||
else if ((departsAsMatch = DepartsAsNoteRegex.Match(noteText)).Success) { |
||||
var groups = departsAsMatch.Groups; |
||||
var departureDate = BucharestTz.AtStrictly(new(int.Parse(groups[5].Value), int.Parse(groups[4].Value), int.Parse(groups[3].Value), 0, 0)); |
||||
stopDescription.AddDepartsAsNote(groups[1].Value, groups[2].Value, departureDate.ToDateTimeOffset()); |
||||
} |
||||
else if ((detachingWagons = DetachingWagonsNoteRegex.Match(noteText)).Success) { |
||||
stopDescription.AddDetachingWagonsNote(detachingWagons.Groups[1].Value); |
||||
} |
||||
else if ((receivingWagons = ReceivingWagonsNoteRegex.Match(noteText)).Success) { |
||||
stopDescription.AddReceivingWagonsNote(receivingWagons.Groups[1].Value); |
||||
} |
||||
} |
||||
}); |
||||
} |
||||
}); |
||||
} |
||||
return result; |
||||
} |
||||
} |
||||
} // namespace |
||||
|
||||
Loading…
Reference in new issue