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Basic database search tab added to the UI
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| using BaseStationReader.Data; | ||
| using BaseStationReader.Entities.Expressions; | ||
| using BaseStationReader.Entities.Tracking; | ||
| using BaseStationReader.Logic.Database; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Collections.ObjectModel; | ||
| using System.Threading.Tasks; | ||
|
|
||
| namespace BaseStationReader.UI.ViewModels | ||
| { | ||
| internal class DatabaseSearchViewModel | ||
| { | ||
| public ObservableCollection<Aircraft> SearchResults { get; private set; } = new(); | ||
|
|
||
| /// <summary> | ||
| /// Search the database for records matching the specified filtering criteria | ||
| /// </summary> | ||
| /// <param name="address"></param> | ||
| /// <param name="callsign"></param> | ||
| /// <param name="status"></param> | ||
| /// <param name="from"></param> | ||
| /// <param name="to"></param> | ||
| public void Search(string? address, string? callsign, string? status, DateTime? from, DateTime? to) | ||
| { | ||
| // Create an expression builder and add an expression for each non-null/blak filtering criterion | ||
| ExpressionBuilder<Aircraft> builder = new ExpressionBuilder<Aircraft>(); | ||
|
|
||
| if (!string.IsNullOrEmpty(address)) | ||
| { | ||
| builder.Add("Address", TrackerFilterOperator.Equals, address); | ||
| } | ||
|
|
||
| if (!string.IsNullOrEmpty(callsign)) | ||
| { | ||
| builder.Add("Callsign", TrackerFilterOperator.Equals, callsign); | ||
| } | ||
|
|
||
| if (!string.IsNullOrEmpty(status) && Enum.TryParse<TrackingStatus>(status, out TrackingStatus statusEnumValue)) | ||
| { | ||
| builder.Add("Status", TrackerFilterOperator.Equals, statusEnumValue); | ||
| } | ||
|
|
||
| if (from != null) | ||
| { | ||
| builder.Add("LastSeen", TrackerFilterOperator.GreaterThanOrEqual, from); | ||
| } | ||
|
|
||
| if (to != null) | ||
| { | ||
| builder.Add("LastSeen", TrackerFilterOperator.LessThanOrEqual, to); | ||
| } | ||
|
|
||
| // Create a database context and an instance of the (reader) writer | ||
| var context = new BaseStationReaderDbContextFactory().CreateDbContext(Array.Empty<string>()); | ||
| var writer = new AircraftWriter(context); | ||
|
|
||
| // Build the filter expression. If there is one, use it to filter the collection of aircraft used | ||
| // to refresh the grid. Otherwise, just use all the current tracked aircraft | ||
| var filter = builder.Build(); | ||
| List<Aircraft> aircraft; | ||
| if (filter != null) | ||
| { | ||
| aircraft = Task.Run(() => writer.ListAsync(filter)).Result; | ||
| } | ||
| else | ||
| { | ||
| aircraft = Task.Run(() => writer.ListAsync(x => true)).Result; | ||
| } | ||
|
|
||
| // Update the observable collection from the filtered aircraft list | ||
| SearchResults = new ObservableCollection<Aircraft>(aircraft); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| using BaseStationReader.Entities.Config; | ||
| using BaseStationReader.Entities.Expressions; | ||
| using BaseStationReader.Entities.Interfaces; | ||
| using BaseStationReader.Entities.Tracking; | ||
| using BaseStationReader.Logic.Database; | ||
| using BaseStationReader.Logic.Tracking; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Collections.ObjectModel; | ||
| using System.Linq; | ||
|
|
||
|
|
||
| namespace BaseStationReader.UI.ViewModels | ||
| { | ||
| internal class LiveViewViewModel | ||
| { | ||
| private ITrackerWrapper? _wrapper = null; | ||
|
|
||
| public ObservableCollection<Aircraft> TrackedAircraft { get; private set; } = new(); | ||
| public bool IsTracking { get { return (_wrapper != null) && _wrapper.IsTracking; } } | ||
|
|
||
| /// <summary> | ||
| /// Initialise the tracker | ||
| /// </summary> | ||
| /// <param name="logger"></param> | ||
| /// <param name="settings"></param> | ||
| public void Initialise(ITrackerLogger logger, ApplicationSettings settings) | ||
| { | ||
| _wrapper = new TrackerWrapper(logger, settings); | ||
| _wrapper.Initialise(); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Start the tracker | ||
| /// </summary> | ||
| public void Start() | ||
| => _wrapper!.Start(); | ||
|
|
||
| /// <summary> | ||
| /// Stop the tracker | ||
| /// </summary> | ||
| public void Stop() | ||
| => _wrapper!.Stop(); | ||
|
|
||
| /// <summary> | ||
| /// Refresh the tracked aircraft collection | ||
| /// </summary> | ||
| /// <param name="address"></param> | ||
| /// <param name="callsign"></param> | ||
| /// <param name="status"></param> | ||
| public void Refresh(string? address, string? callsign, string? status) | ||
| { | ||
| // Build the filtering expression, if needed | ||
| var builder = new ExpressionBuilder<Aircraft>(); | ||
| if (!string.IsNullOrEmpty(address)) | ||
| { | ||
| builder.Add("Address", TrackerFilterOperator.Equals, address.ToUpper()); | ||
| } | ||
|
|
||
| if (!string.IsNullOrEmpty(callsign)) | ||
| { | ||
| builder.Add("Callsign", TrackerFilterOperator.Equals, callsign.ToUpper()); | ||
| } | ||
|
|
||
| if (!string.IsNullOrEmpty(status) && Enum.TryParse<TrackingStatus>(status, out TrackingStatus statusEnumValue)) | ||
| { | ||
| builder.Add("Status", TrackerFilterOperator.Equals, statusEnumValue); | ||
| } | ||
|
|
||
| // Build the filter expression. If there is one, use it to filter the collection of aircraft used | ||
| // to refresh the grid. Otherwise, just use all the current tracked aircraft | ||
| var filter = builder.Build(); | ||
| List<Aircraft> aircraft; | ||
| if (filter != null) | ||
| { | ||
| aircraft = _wrapper!.TrackedAircraft.Values.AsQueryable().Where(filter).ToList(); | ||
| } | ||
| else | ||
| { | ||
| aircraft = _wrapper!.TrackedAircraft.Values.ToList(); | ||
| } | ||
|
|
||
| // Update the observable collection from the filtered aircraft list | ||
| TrackedAircraft = new ObservableCollection<Aircraft>(aircraft); | ||
| } | ||
| } | ||
| } |
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