Setup CSV Fleet import and EF Fleet Entity, fix a few bugs

Stars Assistant/CSV/Fleet.cs

@@ -35,61 +35,116 @@ public class Fleet
     [Index(9)]
     public int Germanium { get; set; }
 
-    [Index(0)]
+    [Index(10)]
     public int Colonists { get; set; }
 
-    [Index(1)]
+    [Index(11)]
     public int Fuel { get; set; }
 
-    [Index(2)]
-    public int OwnerPlayerNumber { get; set; }
+    [Index(12)]
+    public int OwnerFileId { get; set; }
 
-    [Index(3)]
-    public int ETA { get; set; }
+    [Ignore()]
+    public int ETA { get; private set; }
 
-    [Index(4)]
+    [Index(13)]
+    public string CSVETA {
+        set {
+            if (   value.Length >= 2
+                && int.TryParse(value[..^1], out int result))
+            {
+                ETA = result;
+            } else {
+                ETA = 0;
+            }
+        }
+    }
+
+    [Index(14)]
     public int Warp { get; set; }
 
-    [Index(5)]
+    [Index(15)]
     public int Mass { get; set; }
 
-    [Index(6)]
+    [Index(16)]
     public int Cloak { get; set; }
 
-    [Index(7)]
+    [Index(17)]
     public int Scan { get; set; }
 
-    [Index(8)]
+    [Index(18)]
     public int PenScan { get; set; }
 
-    [Index(9)]
+    [Index(19)]
     public string Task { get; set; } = String.Empty;
 
-    [Index(0)]
+    [Index(20)]
     public int Mining { get; set; }
 
-    [Index(1)]
+    [Index(21)]
     public int Sweep { get; set; }
 
-    [Index(2)]
+    [Index(22)]
     public int Laying { get; set; }
 
-    [Index(3)]
+    [Index(23)]
     public int Terraforming { get; set; }
 
-    [Index(4)]
+    [Index(24)]
     public int Unarmed { get; set; }
 
-    [Index(5)]
+    [Index(25)]
     public int Scout { get; set; }
 
-    [Index(6)]
+    [Index(26)]
     public int Warship { get; set; }
 
-    [Index(7)]
+    [Index(27)]
     public int Utility { get; set; }
 
-    [Index(8)]
+    [Index(28)]
     public int Bomber { get; set; }
 
+    /// <summary>
+    /// This will update a DB Fleet recrod with this CSV Data. DB/EF Handling
+    /// has to be done by the caller, we'll take care of none PK properties
+    /// only.
+    /// </summary>
+    /// <param name="dbFleet">record to fill</param>
+    public void UpdateDbFleet(Model.Fleet dbFleet) 
+    {
+        if (dbFleet == null)
+            throw new InvalidOperationException("Cannot update a null DB fleet instance");
+
+        dbFleet.FleetName = FleetName;
+        dbFleet.X = X;
+        dbFleet.Y = Y;
+        dbFleet.Planet = Planet;
+        dbFleet.Destination = Destination;
+        dbFleet.BattlePlan = BattlePlan;
+        dbFleet.ShipCount = ShipCount;
+        dbFleet.Ironium = Ironium;
+        dbFleet.Boranium = Boranium;
+        dbFleet.Germanium = Germanium;
+        dbFleet.Colonists = Colonists;
+        dbFleet.Fuel = Fuel;
+        dbFleet.OwnerFileId = OwnerFileId;
+        dbFleet.ETA = ETA;
+        dbFleet.Warp = Warp;
+        dbFleet.Mass = Mass;
+        dbFleet.Cloak = Cloak;
+        dbFleet.Scan = Scan;
+        dbFleet.PenScan = PenScan;
+        dbFleet.Task = Task;
+        dbFleet.Mining = Mining;
+        dbFleet.Sweep = Sweep;
+        dbFleet.Laying = Laying;
+        dbFleet.Terraforming = Terraforming;
+        dbFleet.Unarmed = Unarmed;
+        dbFleet.Scout = Scout;
+        dbFleet.Warship = Warship;
+        dbFleet.Utility = Utility;
+
+    }
+
 }

Stars Assistant/CSV/FleetLoader.cs

@@ -0,0 +1,77 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using CsvHelper.Configuration;
+using CsvHelper;
+using System.Globalization;
+using Splat;
+using StarsAssistant.Services;
+using Avalonia.Animation;
+
+namespace StarsAssistant.CSV;
+
+public class FleetLoader
+{
+    /// <summary>
+    /// Reference to the game metadata, retrieved by DI
+    /// </summary>
+    protected Services.Game Game = Locator.Current.GetService<Services.Game>()!;
+
+    /// <summary>
+    /// CSV Configuration to use for importing Planet files.
+    /// </summary>
+    protected CsvConfiguration CsvConfig;
+
+    /// <summary>
+    /// Construction
+    /// </summary>
+    public FleetLoader()
+    {
+        CreateConfig();
+    }
+
+    /// <summary>
+    /// Creates the CSV configuration for planets.
+    /// </summary>
+    [MemberNotNull(nameof(CsvConfig))]
+    protected void CreateConfig() 
+    {
+        CsvConfig = CsvConfiguration.FromAttributes<Fleet>(CultureInfo.InvariantCulture);
+        CsvConfig.Delimiter = "\t";
+        CsvConfig.Escape = '\0';
+        CsvConfig.MissingFieldFound = null;
+    }
+
+    /// <summary>
+    /// Import the fleet file for the given Race, all other records will be ignored.
+    /// Since we can't update existing records, we will delete all applicable ones
+    /// before inserting new Fleets.
+    /// </summary>
+    /// <param name="race">Import File</param>
+    public void ImportForRace(Model.Race race)
+    {
+        using var db = Locator.Current.GetService<Model.StarsDatabase>()!;
+        using var reader = new StreamReader(Game.FleetFileForRace(race), System.Text.Encoding.Latin1);
+        using var csv = new CsvReader(reader, CsvConfig);
+
+        var oldFleetsToDelete = from flt in db.Fleet
+            where flt.OwnerFileId == race.PlayerFileId
+            select flt;
+        db.RemoveRange(oldFleetsToDelete);
+
+        List<CSV.Fleet> records = csv.GetRecords<Fleet>().ToList();
+        var fleetsForPlayer = from flt in records
+            where flt.OwnerFileId == race.PlayerFileId
+            select flt;
+
+        foreach (var csvFleet in fleetsForPlayer)
+        {
+            Model.Fleet dbFleet = new();
+            csvFleet.UpdateDbFleet(dbFleet);
+            dbFleet.OwnerId = race.Name;
+            db.Add(dbFleet);
+        }
+
+        db.SaveChanges();
+    }
+
+}

Stars Assistant/CSV/Planet.cs

@@ -215,7 +215,7 @@ public class Planet
     public int? DriverWarp { get; set; }
     
     [Index(32)]
-    public string? RouteTarget { get; set; }
+    public string RouteTarget { get; set; } = String.Empty;
     
     [Index(33)]
     public int? GateRange { get; set; }
@@ -231,7 +231,7 @@ public class Planet
     /// must already be set, DB/EF Handling has to be done by the caller, we'll take
     /// care of none PK properties only.
     /// </summary>
-    /// <param name="dbPlanet"></param>
+    /// <param name="dbPlanet">record to fill</param>
     public void UpdateDbPlanet(Model.Planet dbPlanet)
     {
         if (dbPlanet == null)

Stars Assistant/Model/Fleet.cs

@@ -1,10 +1,15 @@
 using System;
 using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 
 namespace StarsAssistant.Model;
 
 public class Fleet
 {
+    [Key]
+    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+    public int Id { get; set; }
+ 
     #region Persistant propeties (from Stars)
 
     public string FleetName { get; set; } = String.Empty;
@@ -31,7 +36,9 @@ public class Fleet
 
     public int Fuel { get; set; }
 
-    public int OwnerPlayerNumber { get; set; }
+    public string OwnerId { get; set; } = String.Empty;
+
+    public int OwnerFileId { get; set; }
 
     public int ETA { get; set; }
 
@@ -66,4 +73,10 @@ public class Fleet
     public int Bomber { get; set; }
 
     #endregion
+
+    #region Relationships
+
+    public Race? Owner { get; set; }
+
+    #endregion
 }

Stars Assistant/Model/Race.cs

@@ -83,7 +83,9 @@ public class Race
 
     #region Relationships
 
-    public ICollection<Planet> Planets { get; } = new List<Planet>();
+    public ICollection<Planet> Planets { get; set; } = [];
+
+    public ICollection<Fleet> Fleets { get; set; } = [];
 
     #endregion
 

Stars Assistant/Model/StarsDatabase.cs

@@ -29,15 +29,18 @@ public class StarsDatabase(string DbPath) : DbContext
 
     #endregion
 
-    #region IStarsDatabase Implementation
-
-    public DbContext DbContext => this;
+    #region DbSets
 
     /// <summary>
     /// List of all Planets read.
     /// </summary>
     public DbSet<Planet> Planet { get; set; }
 
+    /// <summary>
+    /// List of all Fleets read.
+    /// </summary>
+    public DbSet<Fleet> Fleet { get; set; }
+
     /// <summary>
     /// Lists of all defined races.
     /// </summary>

Stars Assistant/Services/Game.cs

@@ -89,6 +89,13 @@ public class Game
     /// <returns>Fully qualified file path.</returns>
     public string PlanetFileForRace (Race r) => Path.Combine(GamePath, $"{BaseName}.p{r.PlayerFileId}");
 
+    /// <summary>
+    /// Get the name of a planet file for a given race.
+    /// </summary>
+    /// <param name="r">The race to load.</param>
+    /// <returns>Fully qualified file path.</returns>
+    public string FleetFileForRace (Race r) => Path.Combine(GamePath, $"{BaseName}.f{r.PlayerFileId}");
+
     /// <summary>
     /// Save this record in the database. Uses the service locator to access the 
     /// database unless you specify an instance. This is needed during initial
@@ -176,8 +183,12 @@ public class Game
         db.Add(r);
         db.SaveChanges();
 
-        var loader = new CSV.PlanetLoader();
-        loader.ImportForRace(Services.Game.Player);
+        var planetLoader = new CSV.PlanetLoader();
+        planetLoader.ImportForRace(Services.Game.Player);
+        
+        var fleetLoader = new CSV.FleetLoader();
+        fleetLoader.ImportForRace(Services.Game.Player);
+    
     }
 
 }