bug-triage-env/server.py at main · r-vb/bug-triage-env · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
from fastapi import FastAPI, HTTPException, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import HTMLResponse, JSONResponse
from pydantic import BaseModel
from typing import Optional
import uvicorn
import os

from environment import BugTriageEnv, Action, Observation, EnvInfo
from tasks import (
    TASKS,
    TASK_LIST,
    TASK_COUNT,
    TASKS_WITH_GRADERS,
    GRADER_SPECS,
    SINGLE_GRADER_SPECS,
)

app = FastAPI(
    title="Bug Triage OpenEnv",
    version="1.0.0",
)

app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_methods=["*"],
    allow_headers=["*"],
)

_envs: dict[str, BugTriageEnv] = {}


def _get_env(task_id: str) -> BugTriageEnv:
    if task_id not in _envs:
        raise HTTPException(status_code=404, detail="Call /reset first")
    return _envs[task_id]


def _read_baseline_scores() -> dict:
    scores_path = os.path.join(os.path.dirname(__file__), "baseline_scores.json")
    if not os.path.exists(scores_path):
        return {}

    try:
        with open(scores_path, encoding="utf-8") as f:
            import json

            return json.load(f)
    except Exception:
        return {}


def _task_payloads() -> list[dict]:
    payloads = []
    for task in TASK_LIST:
        payload = {
            key: value
            for key, value in task.items()
            if key not in {"grader", "grader_spec"}
        }
        payload["grader"] = task.get("grader_spec")
        payload["has_grader"] = callable(task.get("grader"))
        payloads.append(payload)
    return payloads


def _grader_registry() -> dict[str, list[dict]]:
    return GRADER_SPECS


def _single_grader_registry() -> dict[str, dict | None]:
    return SINGLE_GRADER_SPECS


def _tasks_with_graders() -> int:
    return TASKS_WITH_GRADERS


# ─── Schemas ──────────────────────────────────────────────────────────────────

class StepRequest(BaseModel):
    task_id: Optional[str] = "easy"
    action: Action


class StepResponse(BaseModel):
    observation: Observation
    reward: float
    done: bool
    info: EnvInfo


# ─── Routes ───────────────────────────────────────────────────────────────────

@app.api_route("/", methods=["GET", "HEAD"], response_class=HTMLResponse)
def root(request: Request):
    # If validator/tool explicitly asks for JSON
    accept_header = request.headers.get("accept", "")
    if "application/json" in accept_header.lower():
        return {"status": "ok", "service": "bug-triage-openenv"}

    html_path = os.path.join(os.path.dirname(__file__), "index.html")
    if os.path.exists(html_path):
        with open(html_path) as f:
            return HTMLResponse(content=f.read())

    return HTMLResponse(content="""
    <html>
      <body style="background:#090c10;color:#3fb950;font-family:monospace;padding:40px">
        <h1>Bug Triage OpenEnv</h1>
        <p>Endpoints: /reset /step /state /tasks /health /docs</p>
      </body>
    </html>
    """)


@app.api_route("/health", methods=["GET", "HEAD"])
def health():
    return {"status": "healthy"}


@app.get("/metadata")
def metadata():
    return {
        "name": "bug-triage-openenv",
        "description": (
            "A real-world OpenEnv environment that simulates GitHub issue triage "
            "with three deterministic graded tasks."
        ),
        "task_count": TASK_COUNT,
        "tasks_with_graders": _tasks_with_graders(),
        "grader_count": _tasks_with_graders(),
        "tasks": _task_payloads(),
        "graders": _grader_registry(),
        "grader_registry": _single_grader_registry(),
    }


@app.get("/schema")
def schema():
    return {
        "action": Action.model_json_schema(),
        "observation": Observation.model_json_schema(),
        "state": {
            "type": "object",
            "properties": {
                "issues": {"type": "array"},
                "inbox": {"type": "array"},
                "triaged": {"type": "array"},
                "team_capacity": {"type": "object"},
                "sla_breached": {"type": "integer"},
                "step": {"type": "integer"},
                "max_steps": {"type": "integer"},
                "total_reward": {"type": "number"},
                "done": {"type": "boolean"},
            },
        },
    }


@app.post("/mcp")
async def mcp(_: Request):
    return JSONResponse(
        {
            "jsonrpc": "2.0",
            "id": None,
            "error": {
                "code": -32601,
                "message": "MCP tools are not implemented for this environment.",
            },
        }
    )


@app.post("/reset")
async def reset(request: Request):
    try:
        body = await request.json()
    except Exception:
        body = {}

    task_id = body.get("task_id", "easy")
    seed = body.get("seed", 42)

    if task_id not in TASKS:
        raise HTTPException(status_code=400, detail=f"Invalid task_id: {task_id}")

    # Prevent memory growth
    if len(_envs) > 10:
        _envs.clear()

    env = BugTriageEnv(task_id=task_id, seed=seed)
    _envs[task_id] = env

    return env.reset()


@app.post("/step", response_model=StepResponse)
def step(req: StepRequest):
    env = _get_env(req.task_id)

    try:
        obs, reward, done, info = env.step(req.action)

        if not (0.0 <= reward <= 1.0):
            raise ValueError(f"Invalid reward: {reward}")

        return StepResponse(
            observation=obs,
            reward=reward,
            done=done,
            info=info,
        )

    except RuntimeError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))


@app.get("/state")
def state(task_id: str = "easy"):
    env = _get_env(task_id)
    return env.state()


@app.get("/tasks")
def list_tasks():
    return {
        "tasks": _task_payloads(),
        "count": TASK_COUNT,
        "task_count": TASK_COUNT,
        "tasks_with_graders": _tasks_with_graders(),
        "grader_count": _tasks_with_graders(),
        "all_have_graders": _tasks_with_graders() == TASK_COUNT,
        "graders": _grader_registry(),
        "grader_registry": _single_grader_registry(),
    }


@app.get("/baseline-scores")
def baseline_scores():
    return {"scores": _read_baseline_scores()}


# ─── Run ──────────────────────────────────────────────────────────────────────

if __name__ == "__main__":
    port = int(os.environ.get("PORT", 7860))
    uvicorn.run("server:app", host="0.0.0.0", port=port)