perf: bound My Work authorization requests (#171)

src/gitea_proxy.py

@@ -544,25 +544,29 @@ async def issue_detail(repository: str, number: int) -> dict:
     }
 
 
-async def _work_contains(stream: str, repository: str, number: int) -> bool:
-    page = 1
-    while page <= 100:
-        result = await work_page(stream, page)
-        if any(
-            item.get("number") == number
-            and isinstance(item.get("repository"), dict)
-            and item["repository"].get("full_name") == repository
-            for item in result["items"]
-        ):
-            return True
-        if not result["has_more"]:
-            return False
-        page += 1
-    return False
+async def _current_login_and_target(path: str) -> tuple[str, dict]:
+    user, target = await asyncio.gather(current_user(), fetch(path))
+    login = user.get("login") if isinstance(user, dict) else None
+    if not isinstance(login, str) or not login or not isinstance(target, dict):
+        return "", {}
+    return login, target
+
+
+def _login_in_users(login: str, value: object) -> bool:
+    return isinstance(value, list) and any(
+        isinstance(user, dict) and user.get("login") == login for user in value
+    )
 
 
 async def is_assigned_issue(repository: str, number: int) -> bool:
-    return await _work_contains("issue", repository, number)
+    login, issue = await _current_login_and_target(
+        f"repos/{repository}/issues/{number}"
+    )
+    return (
+        issue.get("state") == "open"
+        and not isinstance(issue.get("pull_request"), dict)
+        and _login_in_users(login, issue.get("assignees"))
+    )
 
 
 async def pull_requests() -> WorkItems:
@@ -592,11 +596,23 @@ async def pull_requests() -> WorkItems:
 
 
 async def is_requested_review(repository: str, number: int) -> bool:
-    return await _work_contains("review", repository, number)
+    login, pull = await _current_login_and_target(
+        f"repos/{repository}/pulls/{number}"
+    )
+    return (
+        pull.get("state") == "open"
+        and _login_in_users(login, pull.get("requested_reviewers"))
+    )
 
 
 async def is_assigned_pull(repository: str, number: int) -> bool:
-    return await _work_contains("pull", repository, number)
+    login, pull = await _current_login_and_target(
+        f"repos/{repository}/pulls/{number}"
+    )
+    return (
+        pull.get("state") == "open"
+        and _login_in_users(login, pull.get("assignees"))
+    )
 
 
 async def pull_completion_detail(repository: str, number: int) -> dict: