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from __future__ import annotations
import os
from fastapi import APIRouter, HTTPException
from fastapi.responses import HTMLResponse, RedirectResponse
try:
from compat import create_app
from models import (
HealthResponse,
PythonCodeReviewAction,
PythonCodeReviewObservation,
PythonCodeReviewState,
TaskDescriptor,
TaskGrade,
)
except Exception:
from .compat import create_app
from .models import (
HealthResponse,
PythonCodeReviewAction,
PythonCodeReviewObservation,
PythonCodeReviewState,
TaskDescriptor,
TaskGrade,
)
from server.env import PythonCodeReviewEnvironment
try:
MAX_CONCURRENT_ENVS = max(int(os.getenv("MAX_CONCURRENT_ENVS", "16")), 1)
except Exception:
MAX_CONCURRENT_ENVS = 16
python_env = PythonCodeReviewEnvironment(verbose=False)
app = create_app(
PythonCodeReviewEnvironment,
PythonCodeReviewAction,
PythonCodeReviewObservation,
max_concurrent_envs=MAX_CONCURRENT_ENVS,
)
router = APIRouter(tags=["python-code-review"])
@router.get("/", include_in_schema=False)
def root() -> HTMLResponse:
"""Serve a small homepage with links and a live demo button."""
return HTMLResponse(
"""
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>python_code_review_env</title>
<style>
body { font-family: ui-sans-serif, system-ui, sans-serif; max-width: 860px; margin: 40px auto; padding: 0 16px; color: #111827; }
.card { border: 1px solid #e5e7eb; border-radius: 12px; padding: 16px; margin: 16px 0; }
button { background: #111827; color: white; border: 0; border-radius: 8px; padding: 10px 14px; cursor: pointer; }
a { color: #2563eb; text-decoration: none; }
pre { background: #f3f4f6; padding: 16px; border-radius: 10px; overflow: auto; white-space: pre-wrap; }
.muted { color: #6b7280; }
</style>
</head>
<body>
<h1>python_code_review_env</h1>
<p class="muted">This Space is an API environment. Use the live demo below or open the API docs.</p>
<div class="card">
<p><a href="/docs">Open API Docs</a></p>
<p><a href="/health">Health</a></p>
<p><a href="/tasks">Tasks</a></p>
<p><a href="/schema">Schema</a></p>
</div>
<div class="card">
<h3>Live Demo</h3>
<p>Runs one safe reset + analyze step and shows the actual JSON output.</p>
<button onclick="runDemo()">Run demo</button>
<pre id="output">Click "Run demo" to see output.</pre>
</div>
<script>
async function runDemo() {
const output = document.getElementById('output');
output.textContent = 'Loading...';
try {
const response = await fetch('/demo');
const data = await response.json();
output.textContent = JSON.stringify(data, null, 2);
} catch (error) {
output.textContent = 'Demo failed: ' + String(error);
}
}
</script>
</body>
</html>
"""
)
@router.get("/web", include_in_schema=False)
@router.get("/web/", include_in_schema=False)
def root_web() -> HTMLResponse:
"""Serve the same homepage for Hugging Face Spaces base-path requests."""
return root()
@router.get("/demo", include_in_schema=False)
def demo() -> dict:
"""Return a live demo payload so users can see actual environment output."""
demo_env = PythonCodeReviewEnvironment(verbose=False)
observation = demo_env.reset(task_id="syntax-fix-easy")
next_observation = demo_env.step(PythonCodeReviewAction(action_type="analyze_code"))
return {
"reset": observation.model_dump(),
"step": next_observation.model_dump(),
}
@router.get("/health", response_model=HealthResponse)
def health() -> HealthResponse:
"""Health check endpoint for deployment monitoring."""
return python_env.health()
@router.get("/tasks", response_model=list)
def list_tasks() -> list:
"""List all available deterministic tasks."""
return python_env.list_task_summaries()
@router.get("/tasks/{task_id}", response_model=object)
def get_task(task_id: str) -> object:
"""Get a specific task by ID."""
try:
return python_env.get_task(task_id)
except ValueError as exc:
raise HTTPException(status_code=404, detail=str(exc)) from exc
@router.post("/tasks/{task_id}/grade", response_model=TaskGrade)
def grade_task(task_id: str, payload: PythonCodeReviewAction) -> TaskGrade:
"""Grade code submission for a task without running an episode."""
if payload.action_type != "edit_code" or not payload.code:
raise HTTPException(
status_code=400,
detail="Requires action_type='edit_code' with code parameter."
)
try:
return python_env.grade_task_submission(task_id=task_id, code=payload.code)
except ValueError as exc:
raise HTTPException(status_code=404, detail=str(exc)) from exc
@router.post("/state", response_model=PythonCodeReviewState)
def get_state_post() -> RedirectResponse:
"""Redirect POST /state to GET for compatibility."""
return RedirectResponse(url="/state", status_code=303)
app.include_router(router)
def _prioritize_route(path: str, methods: set[str]) -> None:
"""Move a matching custom route ahead of default OpenEnv routes."""
try:
for index in range(len(app.router.routes) - 1, -1, -1):
route = app.router.routes[index]
route_path = getattr(route, "path", None)
route_methods = set(getattr(route, "methods", set()) or set())
if route_path == path and methods.issubset(route_methods):
app.router.routes.insert(0, app.router.routes.pop(index))
break
except Exception:
pass
_prioritize_route("/health", {"GET"})
def main(host: str = "0.0.0.0", port: int = 8000) -> None:
"""Run the FastAPI application with uvicorn."""
import uvicorn
uvicorn.run(
app,
host=os.getenv("HOST", host),
port=int(os.getenv("PORT", str(port))),
)
if __name__ == "__main__":
main()
|