feat: reopen and resume closed issues (Closes #547)

tests/test_command_palette.py

@@ -178,7 +178,7 @@ const pending = new Map();
 const states = [];
 const preview = createSearchPreview({{
   fetchJson: item => new Promise(resolve => pending.set(item.number, resolve)),
-  claim: () => Promise.resolve(),
+  mutate: () => Promise.resolve(),
   onState: state => states.push(state),
 }});
 preview.open({{ repository:'stackchain/api', number:1, kind:'issue' }});
@@ -206,7 +206,7 @@ let resolveClaim;
 const states = [];
 const preview = createSearchPreview({{
   fetchJson: item => Promise.resolve(item),
-  claim: () => {{ claims += 1; return new Promise(resolve => {{ resolveClaim = resolve; }}); }},
+  mutate: (_detail, action) => {{ if (action !== 'claim') throw new Error('wrong action'); claims += 1; return new Promise(resolve => {{ resolveClaim = resolve; }}); }},
   onState: state => states.push(state),
 }});
 await preview.open({{ repository:'stackchain/api', number:42, kind:'issue' }});
@@ -223,6 +223,32 @@ if (!states.some(state => state.status === 'claimed')) throw new Error('claim co
     subprocess.run(["node", "-e", script], check=True, capture_output=True, text=True)
 
 
+def test_search_preview_reopen_is_single_flight_and_reports_confirmation():
+    script = f"""
+const createSearchPreview = require({json.dumps(str(SEARCH_PREVIEW))});
+(async () => {{
+let reopens = 0;
+let resolveReopen;
+const states = [];
+const preview = createSearchPreview({{
+  fetchJson: item => Promise.resolve(item),
+  mutate: (_detail, action) => {{ if (action !== 'reopen') throw new Error('wrong action'); reopens += 1; return new Promise(resolve => {{ resolveReopen = resolve; }}); }},
+  onState: state => states.push(state),
+}});
+const detail = {{ repository:'stackchain/api', number:42, reopenable:true }};
+await preview.open(detail);
+const first = preview.reopen(detail);
+const second = preview.reopen(detail);
+if (reopens !== 1 || first !== second) throw new Error('reopen was not single-flight');
+resolveReopen({{ state:'open', assignees:['timmy'] }});
+await first;
+if (!states.some(state => state.status === 'reopened')) throw new Error('reopen confirmation missing');
+}})().catch(error => {{ console.error(error); process.exit(1); }});
+"""
+
+    subprocess.run(["node", "-e", script], check=True, capture_output=True, text=True)
+
+
 def test_remote_search_selection_opens_native_preview_without_navigation():
     html = dashboard_bundle_text()
 
@@ -248,13 +274,31 @@ def test_search_preview_offers_assign_and_start_for_eligible_issues():
     css = (FRONTEND / "dashboard.css").read_text()
 
     assert 'id="start-search-result"' in html
-    assert "startButton.textContent = detail.assigned_to_me ? 'Start in Today' : 'Assign & start'" in html
-    assert "const searchAssignAndStart = createAssignAndStart({" in html
+    assert "(detail.assigned_to_me ? 'Start in Today' : 'Assign & start')" in html
+    assert "const searchAssignAndStart = createSearchStart(detail => searchPreview.claim(detail))" in html
     assert "searchAssignAndStart.run(detail, { alreadyOwned: detail.assigned_to_me })" in html
     assert ".search-preview-primary-actions" in css
     assert "grid-template-columns:repeat(2,minmax(0,1fr))" in css
 
 
+def test_closed_issue_preview_reopens_then_resumes_through_capacity_guard():
+    html = dashboard_bundle_text()
+
+    assert "startButton.textContent = detail.reopenable ? 'Reopen & resume'" in html
+    assert "mutate: (detail, action) => fetchReviewJson(" in html
+    handler = html.split("qs('#start-search-result').addEventListener('click'", 1)[1].split(
+        "qs('#close-whiteboard')", 1
+    )[0]
+    assert "searchReopenAndStart.run(detail)" in handler
+    orchestrator = html.split("function createSearchStart(claim)", 1)[1].split(
+        "const searchAssignAndStart", 1
+    )[0]
+    assert "available: createAndStart.available" in orchestrator
+    assert "claim," in orchestrator
+    assert "acceptClaimedIssue(confirmed)" in orchestrator
+    assert "const searchReopenAndStart = createSearchStart(detail => searchPreview.reopen(detail))" in html
+
+
 def test_mobile_search_viewport_tracks_keyboard_geometry_without_leaking_listeners():
     script = f"""
 const createMobileSearchViewport = require({json.dumps(str(MOBILE_SEARCH_VIEWPORT))});

tests/test_global_search.py

@@ -229,6 +229,7 @@ async def test_work_preview_normalizes_details_and_only_allows_unassigned_open_i
         "assignees": [],
         "url": "https://forge.example/stackchain/api/issues/42",
         "claimable": True,
+        "reopenable": False,
         "assigned_to_me": False,
     }
 
@@ -255,3 +256,26 @@ async def test_work_preview_derives_pull_kind_and_never_offers_issue_claim():
 
     assert preview["kind"] == "pull"
     assert preview["claimable"] is False
+
+
+@pytest.mark.anyio
+async def test_work_preview_offers_reopen_only_for_closed_issues():
+    async def handler(request):
+        if request.url.path.endswith("/user"):
+            return httpx.Response(200, json={"login": "timmy"})
+        return httpx.Response(200, json={
+            "number": 42,
+            "title": "Resume work",
+            "state": "closed",
+            "html_url": "https://forge.example/stackchain/api/issues/42",
+            "assignees": [],
+        })
+
+    gitea_proxy.start_client(transport=httpx.MockTransport(handler))
+    try:
+        preview = await gitea_proxy.work_preview("stackchain/api", "issue", 42)
+    finally:
+        await gitea_proxy.stop_client()
+
+    assert preview["reopenable"] is True
+    assert preview["claimable"] is False

tests/test_issue_api.py

@@ -1094,6 +1094,71 @@ async def test_gitea_claim_available_issue_rechecks_then_confirms_authenticated_
     assert result["assignees"] == ["timmy"]
 
 
+@pytest.mark.anyio
+async def test_gitea_reopen_issue_rechecks_closed_state_and_confirms_self_assignment():
+    requests = []
+
+    async def handler(request):
+        requests.append(request)
+        if request.method == "GET" and request.url.path.endswith("/issues/17"):
+            return httpx.Response(200, json={
+                "id": 81, "number": 17, "title": "Resume work", "state": "closed",
+                "assignees": [], "pull_request": None, "labels": [{"name": "P1"}],
+                "html_url": "https://forge.example/stackchain/api/issues/17",
+            })
+        if request.method == "GET" and request.url.path == "/api/v1/user":
+            return httpx.Response(200, json={"login": "timmy"})
+        return httpx.Response(200, json={
+            "id": 81, "number": 17, "title": "Resume work", "state": "open",
+            "assignees": [{"login": "timmy"}], "labels": [{"name": "P1"}],
+            "html_url": "https://forge.example/stackchain/api/issues/17",
+        })
+
+    gitea_proxy.start_client(transport=httpx.MockTransport(handler))
+    try:
+        result = await gitea_proxy.reopen_issue("stackchain/api", 17)
+    finally:
+        await gitea_proxy.stop_client()
+
+    assert [(request.method, request.url.path) for request in requests] == [
+        ("GET", "/api/v1/repos/stackchain/api/issues/17"),
+        ("GET", "/api/v1/user"),
+        ("PATCH", "/api/v1/repos/stackchain/api/issues/17"),
+    ]
+    assert requests[2].content == b'{"state":"open","assignee":"timmy"}'
+    assert result == {
+        "id": 81, "number": 17, "title": "Resume work", "state": "open",
+        "repository": "stackchain/api", "labels": ["P1"],
+        "assignees": ["timmy"], "updated_at": "",
+        "url": "https://forge.example/stackchain/api/issues/17",
+    }
+
+
+@pytest.mark.anyio
+async def test_gitea_reopen_issue_retry_accepts_already_open_self_assigned_issue():
+    requests = []
+
+    async def handler(request):
+        requests.append(request)
+        if request.url.path == "/api/v1/user":
+            return httpx.Response(200, json={"login": "timmy"})
+        return httpx.Response(200, json={
+            "id": 81, "number": 17, "title": "Resume work", "state": "open",
+            "assignees": [{"login": "timmy"}], "pull_request": None, "labels": [],
+            "html_url": "https://forge.example/stackchain/api/issues/17",
+        })
+
+    gitea_proxy.start_client(transport=httpx.MockTransport(handler))
+    try:
+        result = await gitea_proxy.reopen_issue("stackchain/api", 17)
+    finally:
+        await gitea_proxy.stop_client()
+
+    assert result["state"] == "open"
+    assert result["assignees"] == ["timmy"]
+    assert all(request.method == "GET" for request in requests)
+
+
 @pytest.mark.anyio
 async def test_claim_available_issue_endpoint_returns_confirmed_work_item(monkeypatch):
     calls = []
@@ -1134,6 +1199,30 @@ async def test_claim_available_issue_endpoint_reports_assignment_race_as_conflic
     }
 
 
+@pytest.mark.anyio
+async def test_reopen_issue_endpoint_returns_confirmed_resumable_work_item(monkeypatch):
+    calls = []
+
+    async def reopen(repository, number):
+        calls.append((repository, number))
+        return {
+            "id": 81, "number": number, "title": "Resume work", "state": "open",
+            "repository": repository, "labels": ["P1"], "assignees": ["timmy"],
+            "url": "https://forge.example/stackchain/api/issues/17",
+        }
+
+    monkeypatch.setattr(main.gitea_proxy, "reopen_issue", reopen, raising=False)
+    transport = httpx.ASGITransport(app=main.app)
+    async with httpx.AsyncClient(transport=transport, base_url="http://test") as client:
+        response = await client.patch("/api/v1/repos/stackchain/api/issues/17/reopen")
+
+    assert response.status_code == 200
+    assert response.headers["cache-control"] == "no-store"
+    assert response.json()["state"] == "open"
+    assert response.json()["assignees"] == ["timmy"]
+    assert calls == [("stackchain/api", 17)]
+
+
 @pytest.mark.anyio
 async def test_gitea_release_issue_removes_only_authenticated_user_and_confirms_peers():
     requests = []

tests/test_widgets.py

@@ -36,21 +36,20 @@ async def test_dashboard_does_not_offer_fabricated_work_when_context_fetch_fails
     assert "Agent UI delta binding" not in html
 
 
-def test_repo_mix_reports_unavailable_for_failed_context_response():
+def test_repo_mix_renders_counts_from_shared_context_snapshot():
     script = f"""
-const updateRepoMix = require({json.dumps(str(WIDGETS))});
-const element = {{ innerHTML: 'stale counts' }};
-const failedFetch = async () => ({{
-  ok: false,
-  status: 503,
-  json: async () => ({{ error: 'upstream unavailable' }}),
-}});
-
-updateRepoMix(element, failedFetch).then(() => {{
-  if (!element.innerHTML.includes('Widget unavailable.')) {{
-    throw new Error(`expected unavailable state, got: ${{element.innerHTML}}`);
-  }}
+const renderRepoMix = require({json.dumps(str(WIDGETS))});
+const element = {{ innerHTML: '' }};
+renderRepoMix(element, {{
+  repos:[{{}},{{}}],
+  issues:[{{state:'open'}},{{state:'closed'}}],
+  pull_requests:[{{}},{{}},{{}}],
 }});
+if (!element.innerHTML.includes('<div class="value">2</div>') ||
+    !element.innerHTML.includes('<div class="value">1</div>') ||
+    !element.innerHTML.includes('<div class="value">3</div>')) {{
+  throw new Error('shared snapshot counts were not rendered: ' + element.innerHTML);
+}}
 """
 
     subprocess.run(