feat: add web batch bulk operations

tests/GmRelay.Bot.Tests/Web/AuthorizedSessionServiceTests.cs

@@ -162,6 +162,129 @@ public sealed class AuthorizedSessionServiceTests
         Assert.Equal(sessionId, store.LastPromotedSessionId);
     }
 
+    [Fact]
+    public async Task UpdateBatchDetailsForGmAsync_Throws_WhenBatchBelongsToAnotherGm()
+    {
+        var batchId = Guid.NewGuid();
+        var groupId = Guid.NewGuid();
+        var store = new FakeSessionStore(
+            groups:
+            [
+                new(groupId, 42, "Alpha", 2002L)
+            ],
+            sessions:
+            [
+                new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
+            ]);
+        var service = new AuthorizedSessionService(store);
+
+        var action = () => service.UpdateBatchDetailsForGmAsync(batchId, 1001L, "Updated", "https://example.test/b");
+
+        await Assert.ThrowsAsync<SessionAccessDeniedException>(action);
+        Assert.False(store.UpdateBatchDetailsCalled);
+    }
+
+    [Fact]
+    public async Task UpdateBatchDetailsForGmAsync_UpdatesOwnedBatch()
+    {
+        var gmId = 1001L;
+        var groupId = Guid.NewGuid();
+        var batchId = Guid.NewGuid();
+        var store = new FakeSessionStore(
+            groups:
+            [
+                new(groupId, 42, "Alpha", gmId)
+            ],
+            sessions:
+            [
+                new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
+            ]);
+        var service = new AuthorizedSessionService(store);
+
+        await service.UpdateBatchDetailsForGmAsync(batchId, gmId, "Updated", "https://example.test/b");
+
+        Assert.True(store.UpdateBatchDetailsCalled);
+        Assert.Equal(batchId, store.LastUpdatedBatchId);
+        Assert.Equal(groupId, store.LastUpdatedBatchGroupId);
+        Assert.Equal("Updated", store.LastUpdatedBatchTitle);
+        Assert.Equal("https://example.test/b", store.LastUpdatedBatchJoinLink);
+    }
+
+    [Fact]
+    public async Task RescheduleBatchForGmAsync_RejectsNonPositiveInterval()
+    {
+        var gmId = 1001L;
+        var groupId = Guid.NewGuid();
+        var batchId = Guid.NewGuid();
+        var store = new FakeSessionStore(
+            groups:
+            [
+                new(groupId, 42, "Alpha", gmId)
+            ],
+            sessions:
+            [
+                new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
+            ]);
+        var service = new AuthorizedSessionService(store);
+
+        var action = () => service.RescheduleBatchForGmAsync(batchId, gmId, DateTime.UtcNow.AddDays(7), intervalDays: 0);
+
+        await Assert.ThrowsAsync<ArgumentOutOfRangeException>(action);
+        Assert.False(store.RescheduleBatchCalled);
+    }
+
+    [Fact]
+    public async Task RescheduleBatchForGmAsync_ReschedulesOwnedBatch()
+    {
+        var gmId = 1001L;
+        var groupId = Guid.NewGuid();
+        var batchId = Guid.NewGuid();
+        var firstScheduledAt = DateTime.UtcNow.AddDays(7);
+        var store = new FakeSessionStore(
+            groups:
+            [
+                new(groupId, 42, "Alpha", gmId)
+            ],
+            sessions:
+            [
+                new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
+            ]);
+        var service = new AuthorizedSessionService(store);
+
+        await service.RescheduleBatchForGmAsync(batchId, gmId, firstScheduledAt, intervalDays: 14);
+
+        Assert.True(store.RescheduleBatchCalled);
+        Assert.Equal(batchId, store.LastRescheduledBatchId);
+        Assert.Equal(groupId, store.LastRescheduledBatchGroupId);
+        Assert.Equal(firstScheduledAt, store.LastRescheduledFirstScheduledAt);
+        Assert.Equal(14, store.LastRescheduledIntervalDays);
+    }
+
+    [Fact]
+    public async Task CloneBatchForGmAsync_ClonesOwnedBatch()
+    {
+        var gmId = 1001L;
+        var groupId = Guid.NewGuid();
+        var batchId = Guid.NewGuid();
+        var store = new FakeSessionStore(
+            groups:
+            [
+                new(groupId, 42, "Alpha", gmId)
+            ],
+            sessions:
+            [
+                new(Guid.NewGuid(), groupId, "Session A", DateTime.UtcNow, "Planned", "https://example.test/a", batchId, 10, 42, 4, 1, 0)
+            ]);
+        var service = new AuthorizedSessionService(store);
+
+        await service.CloneBatchForGmAsync(batchId, gmId, BatchCloneInterval.NextWeek);
+
+        Assert.True(store.CloneBatchCalled);
+        Assert.Equal(batchId, store.LastClonedBatchId);
+        Assert.Equal(groupId, store.LastClonedBatchGroupId);
+        Assert.Equal(BatchCloneInterval.NextWeek, store.LastCloneInterval);
+    }
+
     private sealed class FakeSessionStore(
         IEnumerable<WebGameGroup>? groups = null,
         IEnumerable<WebSession>? sessions = null) : ISessionStore
@@ -171,6 +294,9 @@ public sealed class AuthorizedSessionServiceTests
 
         public bool UpdateCalled { get; private set; }
         public bool PromoteCalled { get; private set; }
+        public bool UpdateBatchDetailsCalled { get; private set; }
+        public bool RescheduleBatchCalled { get; private set; }
+        public bool CloneBatchCalled { get; private set; }
         public Guid? LastUpdatedSessionId { get; private set; }
         public Guid? LastUpdatedGroupId { get; private set; }
         public string? LastUpdatedTitle { get; private set; }
@@ -179,6 +305,17 @@ public sealed class AuthorizedSessionServiceTests
         public int? LastUpdatedMaxPlayers { get; private set; }
         public Guid? LastPromotedSessionId { get; private set; }
         public Guid? LastPromotedGroupId { get; private set; }
+        public Guid? LastUpdatedBatchId { get; private set; }
+        public Guid? LastUpdatedBatchGroupId { get; private set; }
+        public string? LastUpdatedBatchTitle { get; private set; }
+        public string? LastUpdatedBatchJoinLink { get; private set; }
+        public Guid? LastRescheduledBatchId { get; private set; }
+        public Guid? LastRescheduledBatchGroupId { get; private set; }
+        public DateTime? LastRescheduledFirstScheduledAt { get; private set; }
+        public int? LastRescheduledIntervalDays { get; private set; }
+        public Guid? LastClonedBatchId { get; private set; }
+        public Guid? LastClonedBatchGroupId { get; private set; }
+        public BatchCloneInterval? LastCloneInterval { get; private set; }
 
         public Task<List<WebGameGroup>> GetGroupsForGmAsync(long gmId) =>
             Task.FromResult(groupsById.Values.Where(group => group.GmTelegramId == gmId).ToList());
@@ -198,6 +335,29 @@ public sealed class AuthorizedSessionServiceTests
             return Task.FromResult(session);
         }
 
+        public Task<WebSessionBatch?> GetBatchAsync(Guid batchId)
+        {
+            var batchSessions = sessionsById.Values
+                .Where(session => session.BatchId == batchId)
+                .OrderBy(session => session.ScheduledAt)
+                .ToList();
+
+            if (batchSessions.Count == 0)
+            {
+                return Task.FromResult<WebSessionBatch?>(null);
+            }
+
+            var firstSession = batchSessions[0];
+            return Task.FromResult<WebSessionBatch?>(new(
+                batchId,
+                firstSession.GroupId,
+                firstSession.Title,
+                firstSession.JoinLink,
+                firstSession.ScheduledAt,
+                batchSessions[^1].ScheduledAt,
+                batchSessions.Count));
+        }
+
         public Task UpdateSessionAsync(Guid sessionId, Guid groupId, string title, DateTime scheduledAt, string joinLink, int? maxPlayers)
         {
             UpdateCalled = true;
@@ -217,5 +377,41 @@ public sealed class AuthorizedSessionServiceTests
             LastPromotedGroupId = groupId;
             return Task.CompletedTask;
         }
+
+        public Task UpdateBatchDetailsAsync(Guid batchId, Guid groupId, string title, string joinLink)
+        {
+            UpdateBatchDetailsCalled = true;
+            LastUpdatedBatchId = batchId;
+            LastUpdatedBatchGroupId = groupId;
+            LastUpdatedBatchTitle = title;
+            LastUpdatedBatchJoinLink = joinLink;
+            return Task.CompletedTask;
+        }
+
+        public Task RescheduleBatchAsync(Guid batchId, Guid groupId, DateTime firstScheduledAt, int intervalDays)
+        {
+            RescheduleBatchCalled = true;
+            LastRescheduledBatchId = batchId;
+            LastRescheduledBatchGroupId = groupId;
+            LastRescheduledFirstScheduledAt = firstScheduledAt;
+            LastRescheduledIntervalDays = intervalDays;
+            return Task.CompletedTask;
+        }
+
+        public Task<WebSessionBatch> CloneBatchAsync(Guid batchId, Guid groupId, BatchCloneInterval interval)
+        {
+            CloneBatchCalled = true;
+            LastClonedBatchId = batchId;
+            LastClonedBatchGroupId = groupId;
+            LastCloneInterval = interval;
+            return Task.FromResult(new WebSessionBatch(
+                Guid.NewGuid(),
+                groupId,
+                "Session A",
+                "https://example.test/a",
+                DateTime.UtcNow.AddDays(7),
+                DateTime.UtcNow.AddDays(7),
+                1));
+        }
     }
 }

tests/GmRelay.Bot.Tests/Web/BatchSchedulePlannerTests.cs

@@ -0,0 +1,51 @@
+using GmRelay.Web.Services;
+
+namespace GmRelay.Bot.Tests.Web;
+
+public sealed class BatchSchedulePlannerTests
+{
+    [Fact]
+    public void BuildFixedIntervalSchedule_OrdersSessionsAndAppliesInterval()
+    {
+        var firstScheduledAt = new DateTime(2026, 5, 4, 16, 0, 0, DateTimeKind.Utc);
+        var currentSchedule = new[]
+        {
+            new DateTime(2026, 4, 28, 16, 0, 0, DateTimeKind.Utc),
+            new DateTime(2026, 4, 21, 16, 0, 0, DateTimeKind.Utc),
+            new DateTime(2026, 5, 5, 16, 0, 0, DateTimeKind.Utc)
+        };
+
+        var result = BatchSchedulePlanner.BuildFixedIntervalSchedule(currentSchedule, firstScheduledAt, intervalDays: 7);
+
+        Assert.Equal(
+            [
+                firstScheduledAt,
+                firstScheduledAt.AddDays(7),
+                firstScheduledAt.AddDays(14)
+            ],
+            result);
+    }
+
+    [Fact]
+    public void BuildFixedIntervalSchedule_RejectsNonPositiveInterval()
+    {
+        var currentSchedule = new[] { new DateTime(2026, 4, 28, 16, 0, 0, DateTimeKind.Utc) };
+        var firstScheduledAt = new DateTime(2026, 5, 4, 16, 0, 0, DateTimeKind.Utc);
+
+        var action = () => BatchSchedulePlanner.BuildFixedIntervalSchedule(currentSchedule, firstScheduledAt, intervalDays: 0);
+
+        Assert.Throws<ArgumentOutOfRangeException>(action);
+    }
+
+    [Theory]
+    [InlineData(BatchCloneInterval.NextWeek, 2026, 5, 8)]
+    [InlineData(BatchCloneInterval.NextMonth, 2026, 6, 1)]
+    public void ShiftForClone_AppliesRequestedCalendarShift(BatchCloneInterval interval, int expectedYear, int expectedMonth, int expectedDay)
+    {
+        var scheduledAt = new DateTime(2026, 5, 1, 16, 30, 0, DateTimeKind.Utc);
+
+        var result = BatchSchedulePlanner.ShiftForClone(scheduledAt, interval);
+
+        Assert.Equal(new DateTime(expectedYear, expectedMonth, expectedDay, 16, 30, 0, DateTimeKind.Utc), result);
+    }
+}