feat: show tasks completed today

tests/test_migration_task_completed_at.py

@@ -0,0 +1,51 @@
+import os
+import sqlite3
+import subprocess
+from pathlib import Path
+
+
+def run_alembic(repo: Path, database: Path, *args: str) -> subprocess.CompletedProcess[str]:
+    env = os.environ.copy()
+    env["DODO_DATABASE_URL"] = f"sqlite+aiosqlite:///{database}"
+    return subprocess.run(
+        ["uv", "run", "alembic", *args], cwd=repo, env=env, text=True, capture_output=True, check=False
+    )
+
+
+def test_task_completed_at_migration_upgrade_and_downgrade(tmp_path: Path):
+    repo = Path(__file__).resolve().parents[1]
+    database = tmp_path / "migration.sqlite3"
+    assert run_alembic(repo, database, "upgrade", "0017_memos").returncode == 0
+
+    with sqlite3.connect(database) as connection:
+        connection.execute(
+            "INSERT INTO users (id, username, password_hash, timezone, created_at) VALUES (?, ?, ?, ?, ?)",
+            ("00000000-0000-0000-0000-000000000001", "owner", "hash", "Asia/Shanghai", "2026-09-15 00:00:00"),
+        )
+        connection.execute(
+            "INSERT INTO task_lists (id, user_id, folder_id, name, is_inbox, position, created_at, deleted_at) VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
+            ("00000000-0000-0000-0000-000000000002", "00000000-0000-0000-0000-000000000001", None, "收集箱", 1, 0, "2026-09-15 00:00:00", None),
+        )
+        connection.execute(
+            "INSERT INTO tasks (id, user_id, list_id, parent_id, title, description, priority, completed, due_at, due_has_time, version, position, created_at, updated_at, deleted_at, external_id) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+            ("00000000-0000-0000-0000-000000000003", "00000000-0000-0000-0000-000000000001", "00000000-0000-0000-0000-000000000002", None, "已完成任务", "", 0, 1, None, 0, 1, 0, "2026-09-14 00:00:00", "2026-09-15 06:00:00", None, None),
+        )
+        connection.commit()
+
+    upgraded = run_alembic(repo, database, "upgrade", "0018_task_completed_at")
+    assert upgraded.returncode == 0, upgraded.stderr
+    with sqlite3.connect(database) as connection:
+        columns = {row[1]: row for row in connection.execute("PRAGMA table_info(tasks)")}
+        assert "completed_at" in columns
+        indexes = {row[1] for row in connection.execute("PRAGMA index_list(tasks)")}
+        assert "ix_tasks_completed_at" in indexes
+        completed_at = connection.execute("SELECT completed_at FROM tasks WHERE id = ?", ("00000000-0000-0000-0000-000000000003",)).fetchone()
+        assert completed_at == ("2026-09-15 06:00:00",)
+        sqlite_boolean = connection.execute("SELECT completed IS TRUE FROM tasks WHERE id = ?", ("00000000-0000-0000-0000-000000000003",)).fetchone()
+        assert sqlite_boolean == (1,)
+
+    downgraded = run_alembic(repo, database, "downgrade", "0017_memos")
+    assert downgraded.returncode == 0, downgraded.stderr
+    with sqlite3.connect(database) as connection:
+        columns = {row[1]: row for row in connection.execute("PRAGMA table_info(tasks)")}
+        assert "completed_at" not in columns