feat: support relative mode for message clean command

api/commands.py

@@ -2598,15 +2598,29 @@ def migrate_oss(
 @click.option(
     "--start-from",
     type=click.DateTime(formats=["%Y-%m-%d", "%Y-%m-%dT%H:%M:%S"]),
-    required=True,
+    required=False,
+    default=None,
     help="Lower bound (inclusive) for created_at.",
 )
 @click.option(
     "--end-before",
     type=click.DateTime(formats=["%Y-%m-%d", "%Y-%m-%dT%H:%M:%S"]),
-    required=True,
+    required=False,
+    default=None,
     help="Upper bound (exclusive) for created_at.",
 )
+@click.option(
+    "--from-days-ago",
+    type=int,
+    default=None,
+    help="Relative lower bound in days ago (inclusive). Must be used with --before-days.",
+)
+@click.option(
+    "--before-days",
+    type=int,
+    default=None,
+    help="Relative upper bound in days ago (exclusive). Required for relative mode.",
+)
 @click.option("--batch-size", default=1000, show_default=True, help="Batch size for selecting messages.")
 @click.option(
     "--graceful-period",
@@ -2618,8 +2632,10 @@ def migrate_oss(
 def clean_expired_messages(
     batch_size: int,
     graceful_period: int,
-    start_from: datetime.datetime,
+    start_from: datetime.datetime | None,
-    end_before: datetime.datetime,
+    end_before: datetime.datetime | None,
+    from_days_ago: int | None,
+    before_days: int | None,
     dry_run: bool,
 ):
     """
@@ -2630,18 +2646,64 @@ def clean_expired_messages(
     start_at = time.perf_counter()
 
     try:
+        abs_mode = start_from is not None and end_before is not None
+        rel_mode = before_days is not None
+
+        if abs_mode and rel_mode:
+            raise click.UsageError(
+                "Options are mutually exclusive: use either (--start-from,--end-before) "
+                "or (--from-days-ago,--before-days)."
+            )
+
+        if from_days_ago is not None and before_days is None:
+            raise click.UsageError("--from-days-ago must be used together with --before-days.")
+
+        if (start_from is None) ^ (end_before is None):
+            raise click.UsageError("Both --start-from and --end-before are required when using absolute time range.")
+
+        if not abs_mode and not rel_mode:
+            raise click.UsageError(
+                "You must provide either (--start-from,--end-before) or (--before-days [--from-days-ago])."
+            )
+
+        if rel_mode:
+            if before_days < 0:
+                raise click.UsageError("--before-days must be >= 0.")
+            if from_days_ago is not None:
+                if from_days_ago < 0:
+                    raise click.UsageError("--from-days-ago must be >= 0.")
+                if from_days_ago <= before_days:
+                    raise click.UsageError("--from-days-ago must be greater than --before-days.")
+
         # Create policy based on billing configuration
         # NOTE: graceful_period will be ignored when billing is disabled.
         policy = create_message_clean_policy(graceful_period_days=graceful_period)
 
         # Create and run the cleanup service
-        service = MessagesCleanService.from_time_range(
+        if abs_mode:
-            policy=policy,
+            service = MessagesCleanService.from_time_range(
-            start_from=start_from,
+                policy=policy,
-            end_before=end_before,
+                start_from=start_from,
-            batch_size=batch_size,
+                end_before=end_before,
-            dry_run=dry_run,
+                batch_size=batch_size,
-        )
+                dry_run=dry_run,
+            )
+        elif from_days_ago is None:
+            service = MessagesCleanService.from_days(
+                policy=policy,
+                days=before_days,
+                batch_size=batch_size,
+                dry_run=dry_run,
+            )
+        else:
+            now = datetime.datetime.now()
+            service = MessagesCleanService.from_time_range(
+                policy=policy,
+                start_from=now - datetime.timedelta(days=from_days_ago),
+                end_before=now - datetime.timedelta(days=before_days),
+                batch_size=batch_size,
+                dry_run=dry_run,
+            )
         stats = service.run()
 
         end_at = time.perf_counter()

api/tests/unit_tests/commands/test_clean_expired_messages.py

@@ -0,0 +1,184 @@
+import datetime
+import re
+from unittest.mock import MagicMock, patch
+
+import click
+import pytest
+
+from commands import clean_expired_messages
+
+
+def _mock_service() -> MagicMock:
+    service = MagicMock()
+    service.run.return_value = {
+        "batches": 1,
+        "total_messages": 10,
+        "filtered_messages": 5,
+        "total_deleted": 5,
+    }
+    return service
+
+
+def test_absolute_mode_calls_from_time_range():
+    policy = object()
+    service = _mock_service()
+    start_from = datetime.datetime(2024, 1, 1, 0, 0, 0)
+    end_before = datetime.datetime(2024, 2, 1, 0, 0, 0)
+
+    with (
+        patch("commands.create_message_clean_policy", return_value=policy),
+        patch("commands.MessagesCleanService.from_time_range", return_value=service) as mock_from_time_range,
+        patch("commands.MessagesCleanService.from_days") as mock_from_days,
+    ):
+        clean_expired_messages.callback(
+            batch_size=200,
+            graceful_period=21,
+            start_from=start_from,
+            end_before=end_before,
+            from_days_ago=None,
+            before_days=None,
+            dry_run=True,
+        )
+
+    mock_from_time_range.assert_called_once_with(
+        policy=policy,
+        start_from=start_from,
+        end_before=end_before,
+        batch_size=200,
+        dry_run=True,
+    )
+    mock_from_days.assert_not_called()
+
+
+def test_relative_mode_before_days_only_calls_from_days():
+    policy = object()
+    service = _mock_service()
+
+    with (
+        patch("commands.create_message_clean_policy", return_value=policy),
+        patch("commands.MessagesCleanService.from_days", return_value=service) as mock_from_days,
+        patch("commands.MessagesCleanService.from_time_range") as mock_from_time_range,
+    ):
+        clean_expired_messages.callback(
+            batch_size=500,
+            graceful_period=14,
+            start_from=None,
+            end_before=None,
+            from_days_ago=None,
+            before_days=30,
+            dry_run=False,
+        )
+
+    mock_from_days.assert_called_once_with(
+        policy=policy,
+        days=30,
+        batch_size=500,
+        dry_run=False,
+    )
+    mock_from_time_range.assert_not_called()
+
+
+def test_relative_mode_with_from_days_ago_calls_from_time_range():
+    policy = object()
+    service = _mock_service()
+    fixed_now = datetime.datetime(2024, 8, 20, 12, 0, 0)
+
+    with (
+        patch("commands.create_message_clean_policy", return_value=policy),
+        patch("commands.MessagesCleanService.from_time_range", return_value=service) as mock_from_time_range,
+        patch("commands.MessagesCleanService.from_days") as mock_from_days,
+        patch("commands.datetime", autospec=True) as mock_datetime,
+    ):
+        mock_datetime.datetime.now.return_value = fixed_now
+        mock_datetime.timedelta = datetime.timedelta
+
+        clean_expired_messages.callback(
+            batch_size=1000,
+            graceful_period=21,
+            start_from=None,
+            end_before=None,
+            from_days_ago=60,
+            before_days=30,
+            dry_run=False,
+        )
+
+    mock_from_time_range.assert_called_once_with(
+        policy=policy,
+        start_from=fixed_now - datetime.timedelta(days=60),
+        end_before=fixed_now - datetime.timedelta(days=30),
+        batch_size=1000,
+        dry_run=False,
+    )
+    mock_from_days.assert_not_called()
+
+
+@pytest.mark.parametrize(
+    ("kwargs", "message"),
+    [
+        (
+            {
+                "start_from": datetime.datetime(2024, 1, 1),
+                "end_before": datetime.datetime(2024, 2, 1),
+                "from_days_ago": None,
+                "before_days": 30,
+            },
+            "mutually exclusive",
+        ),
+        (
+            {
+                "start_from": datetime.datetime(2024, 1, 1),
+                "end_before": None,
+                "from_days_ago": None,
+                "before_days": None,
+            },
+            "Both --start-from and --end-before are required",
+        ),
+        (
+            {
+                "start_from": None,
+                "end_before": None,
+                "from_days_ago": 10,
+                "before_days": None,
+            },
+            "--from-days-ago must be used together with --before-days",
+        ),
+        (
+            {
+                "start_from": None,
+                "end_before": None,
+                "from_days_ago": None,
+                "before_days": -1,
+            },
+            "--before-days must be >= 0",
+        ),
+        (
+            {
+                "start_from": None,
+                "end_before": None,
+                "from_days_ago": 30,
+                "before_days": 30,
+            },
+            "--from-days-ago must be greater than --before-days",
+        ),
+        (
+            {
+                "start_from": None,
+                "end_before": None,
+                "from_days_ago": None,
+                "before_days": None,
+            },
+            "You must provide either (--start-from,--end-before) or (--before-days [--from-days-ago])",
+        ),
+    ],
+)
+def test_invalid_inputs_raise_usage_error(kwargs: dict, message: str):
+    with pytest.raises(click.UsageError, match=re.escape(message)):
+        clean_expired_messages.callback(
+            batch_size=1000,
+            graceful_period=21,
+            start_from=kwargs["start_from"],
+            end_before=kwargs["end_before"],
+            from_days_ago=kwargs["from_days_ago"],
+            before_days=kwargs["before_days"],
+            dry_run=False,
+        )