Make mission -> mission launches one-to-many

src/MissionControl.Data/Migrations/20260727222052_Add_MissionLaunches.Designer.cs

@@ -12,7 +12,7 @@ using MissionControl.Data;
 namespace MissionControl.Data.Migrations
 {
     [DbContext(typeof(MissionControlContext))]
-    [Migration("20260727193151_Add_MissionLaunches")]
+    [Migration("20260727222052_Add_MissionLaunches")]
     partial class Add_MissionLaunches
     {
         /// <inheritdoc />
@@ -75,8 +75,7 @@ namespace MissionControl.Data.Migrations
 
                     b.HasKey("Id");
 
-                    b.HasIndex("MissionId")
-                        .IsUnique();
+                    b.HasIndex("MissionId");
 
                     b.ToTable("MissionLaunches");
                 });
@@ -84,8 +83,8 @@ namespace MissionControl.Data.Migrations
             modelBuilder.Entity("MissionControl.Domain.Entities.MissionLaunch", b =>
                 {
                     b.HasOne("MissionControl.Domain.Entities.Mission", "Mission")
-                        .WithOne("MissionLaunch")
-                        .HasForeignKey("MissionControl.Domain.Entities.MissionLaunch", "MissionId")
+                        .WithMany("MissionLaunches")
+                        .HasForeignKey("MissionId")
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
 
@@ -94,7 +93,7 @@ namespace MissionControl.Data.Migrations
 
             modelBuilder.Entity("MissionControl.Domain.Entities.Mission", b =>
                 {
-                    b.Navigation("MissionLaunch");
+                    b.Navigation("MissionLaunches");
                 });
 #pragma warning restore 612, 618
         }

src/MissionControl.Data/Migrations/20260727222052_Add_MissionLaunches.cs

@@ -35,8 +35,7 @@ namespace MissionControl.Data.Migrations
             migrationBuilder.CreateIndex(
                 name: "IX_MissionLaunches_MissionId",
                 table: "MissionLaunches",
-                column: "MissionId",
-                unique: true);
+                column: "MissionId");
         }
 
         /// <inheritdoc />

src/MissionControl.Data/Migrations/MissionControlContextModelSnapshot.cs

@@ -72,8 +72,7 @@ namespace MissionControl.Data.Migrations
 
                     b.HasKey("Id");
 
-                    b.HasIndex("MissionId")
-                        .IsUnique();
+                    b.HasIndex("MissionId");
 
                     b.ToTable("MissionLaunches");
                 });
@@ -81,8 +80,8 @@ namespace MissionControl.Data.Migrations
             modelBuilder.Entity("MissionControl.Domain.Entities.MissionLaunch", b =>
                 {
                     b.HasOne("MissionControl.Domain.Entities.Mission", "Mission")
-                        .WithOne("MissionLaunch")
-                        .HasForeignKey("MissionControl.Domain.Entities.MissionLaunch", "MissionId")
+                        .WithMany("MissionLaunches")
+                        .HasForeignKey("MissionId")
                         .OnDelete(DeleteBehavior.Cascade)
                         .IsRequired();
 
@@ -91,7 +90,7 @@ namespace MissionControl.Data.Migrations
 
             modelBuilder.Entity("MissionControl.Domain.Entities.Mission", b =>
                 {
-                    b.Navigation("MissionLaunch");
+                    b.Navigation("MissionLaunches");
                 });
 #pragma warning restore 612, 618
         }

src/MissionControl.Data/MissionControlContext.cs

@@ -12,9 +12,10 @@ public class MissionControlContext(DbContextOptions<MissionControlContext> optio
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
         modelBuilder.Entity<Mission>()
-            .HasOne(mission => mission.MissionLaunch)
+            .HasMany(mission => mission.MissionLaunches)
             .WithOne(missionLaunch => missionLaunch.Mission)
-            .HasForeignKey<MissionLaunch>(missionLaunch => missionLaunch.MissionId);
+            .HasForeignKey(missionLaunch => missionLaunch.MissionId)
+            .IsRequired();
 
         modelBuilder.ApplyConfigurationsFromAssembly(typeof(MissionControlContext).Assembly);
     }

src/MissionControl.Domain/Entities/Mission.cs

@@ -12,5 +12,5 @@ public class Mission
 
     public DateTimeOffset CreatedAt { get; init; } = DateTimeOffset.UtcNow;
 
-    public MissionLaunch? MissionLaunch { get; set; }
+    public ICollection<MissionLaunch> MissionLaunches { get; set; } = new List<MissionLaunch>();
 }

src/MissionControl.Server/Endpoints/Missions/Contract.cs

@@ -15,7 +15,7 @@ public record MissionResponse
 
     public required DateTimeOffset CreatedAt { get; init; }
 
-    public MissionLaunchResponse? MissionLaunch { get; set; }
+    public IReadOnlyList<MissionLaunchResponse> MissionLaunches { get; set; } = [];
 
     public static MissionResponse FromDomain(Mission mission) =>
         new()
@@ -25,6 +25,6 @@ public record MissionResponse
             Description = mission.Description,
             Status = mission.Status,
             CreatedAt = mission.CreatedAt,
-            MissionLaunch = mission.MissionLaunch != null ? MissionLaunchResponse.FromDomain(mission.MissionLaunch) : null,
+            MissionLaunches = mission.MissionLaunches.Select(MissionLaunchResponse.FromDomain).ToList(),
         };
 }

src/MissionControl.Server/Endpoints/Missions/ListMissions.cs

@@ -16,7 +16,7 @@ public class ListMissions(MissionControlContext dbContext)
     {
         var missions = await dbContext.Missions
             .AsNoTracking()
-            .Include(m => m.MissionLaunch)
+            .Include(m => m.MissionLaunches)
             .OrderByDescending(m => m.CreatedAt)
             .ToListAsync(ct);
 

src/MissionControl.Server/Endpoints/Missions/MissionLaunches/CreateMissionLaunch.cs

@@ -1,6 +1,5 @@
 using FastEndpoints;
 using FluentValidation;
-using Microsoft.AspNetCore.Mvc;
 using MissionControl.Data;
 using MissionControl.Domain.Entities;
 

src/mission-control-client/src/api/missions.ts

@@ -9,7 +9,7 @@ export type Mission = {
   description: string | null;
   status: MissionStatus;
   createdAt: string;
-  missionLaunch: MissionLaunch | null;
+  missionLaunches: MissionLaunch[];
 };
 
 export type CreateMissionRequest = {