feat: close issues after merged agent PRs

tests/test_gitea_service.py

@@ -8,7 +8,7 @@ import httpx
 from agent_gitea.config import AppConfig
 from agent_gitea.gitea import GiteaClient
 from agent_gitea.models import AgentResult, TaskState
-from agent_gitea.service import TaskRunner, scan_issues, sync_repositories
+from agent_gitea.service import TaskRunner, close_issues_for_merged_pull_requests, scan_issues, sync_repositories
 
 
 def make_config(tmp_path: Path, **overrides: object) -> AppConfig:
@@ -265,12 +265,94 @@ def test_run_task_success_posts_review_comments(db, tmp_path):
     pull_requests = [payload for _, path, payload in requests if path == "/api/v1/repos/acme/service/pulls"]
     assert pull_requests[0]["title"] == "代理实现：Ready issue"
     assert "代理实现报告" in pull_requests[0]["body"]
+    assert "Closes #1" in pull_requests[0]["body"]
     command = json.loads(db.list_agent_runs(task.id)[0]["command_json"])
     assert command[1] == "--cd"
     assert Path(command[2]).is_absolute()
     assert [path for _, path, _ in requests].count("/api/v1/repos/acme/service/issues/5/comments") == 2
 
 
+def test_close_issues_for_merged_pull_requests_closes_linked_issue(db):
+    repo = db.upsert_repository(
+        owner="acme",
+        name="service",
+        clone_url="https://gitea.test/acme/service.git",
+        default_branch="main",
+        enabled=True,
+    )
+    db.upsert_issue(
+        repo_id=repo.id,
+        issue_number=1,
+        title="Ready issue",
+        body="Body",
+        labels=["agent:ready"],
+        state="open",
+        html_url="https://gitea.test/acme/service/issues/1",
+    )
+    task = db.create_task(repo.id, 1)
+    db.transition(task.id, TaskState.CLAIMED)
+    db.transition(task.id, TaskState.PLANNING)
+    db.transition(task.id, TaskState.IMPLEMENTING)
+    db.transition(task.id, TaskState.TESTING)
+    db.transition(task.id, TaskState.PR_OPENED, pr_number=5)
+    db.transition(task.id, TaskState.REVIEWING)
+    db.transition(task.id, TaskState.HUMAN_REVIEW_READY, clear_lease=True)
+    requests: list[tuple[str, str, dict]] = []
+
+    def handler(request: httpx.Request) -> httpx.Response:
+        payload = json.loads(request.content.decode() or "{}")
+        requests.append((request.method, request.url.path, payload))
+        if request.url.path == "/api/v1/repos/acme/service/pulls/5":
+            return httpx.Response(200, json={"number": 5, "state": "closed", "merged": True})
+        if request.url.path == "/api/v1/repos/acme/service/issues/1/comments":
+            return httpx.Response(201, json={"id": 1})
+        if request.url.path == "/api/v1/repos/acme/service/issues/1":
+            return httpx.Response(200, json={"number": 1, "state": "closed"})
+        return httpx.Response(404)
+
+    closed = close_issues_for_merged_pull_requests(db, make_client(handler))
+
+    assert closed == 1
+    assert db.get_issue(repo.id, 1).state == "closed"  # type: ignore[union-attr]
+    assert ("PATCH", "/api/v1/repos/acme/service/issues/1", {"state": "closed"}) in requests
+
+
+def test_close_issues_for_merged_pull_requests_skips_unmerged_pr(db):
+    repo = db.upsert_repository(
+        owner="acme",
+        name="service",
+        clone_url="https://gitea.test/acme/service.git",
+        default_branch="main",
+        enabled=True,
+    )
+    db.upsert_issue(
+        repo_id=repo.id,
+        issue_number=1,
+        title="Ready issue",
+        body="Body",
+        labels=["agent:ready"],
+        state="open",
+        html_url="https://gitea.test/acme/service/issues/1",
+    )
+    task = db.create_task(repo.id, 1)
+    db.transition(task.id, TaskState.CLAIMED)
+    db.transition(task.id, TaskState.PLANNING)
+    db.transition(task.id, TaskState.IMPLEMENTING)
+    db.transition(task.id, TaskState.TESTING)
+    db.transition(task.id, TaskState.PR_OPENED, pr_number=5)
+    db.transition(task.id, TaskState.REVIEWING)
+    db.transition(task.id, TaskState.HUMAN_REVIEW_READY, clear_lease=True)
+
+    def handler(request: httpx.Request) -> httpx.Response:
+        assert request.url.path == "/api/v1/repos/acme/service/pulls/5"
+        return httpx.Response(200, json={"number": 5, "state": "open", "merged": False})
+
+    closed = close_issues_for_merged_pull_requests(db, make_client(handler))
+
+    assert closed == 0
+    assert db.get_issue(repo.id, 1).state == "open"  # type: ignore[union-attr]
+
+
 def test_run_task_no_diff_becomes_blocked(db, tmp_path):
     config = make_config(tmp_path)
     seed_task(db)