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43497ae 1023e49 43497ae 1023e49 43497ae | 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 | import json
import subprocess
from datetime import datetime
from pathlib import Path
from typing import Any, Dict
from uuid import uuid4
import gradio as gr
from fastapi import FastAPI, Request
from fastapi.responses import HTMLResponse, JSONResponse
import uvicorn
ROOT = Path(__file__).resolve().parent
META_PATH = ROOT / "agent.json"
def load_meta() -> Dict[str, Any]:
try:
return json.loads(META_PATH.read_text(encoding="utf-8"))
except Exception:
return {"id": "sin-code-base", "name": "A2A SIN-Code Base", "version": "1.0.0"}
def build_card(base_url: str) -> Dict[str, Any]:
meta = load_meta()
meta = dict(meta)
meta["endpoints"] = dict(meta.get("endpoints") or {})
meta["endpoints"]["gradio_ui"] = base_url
meta["endpoints"]["a2a_api"] = f"{base_url}/a2a/v1"
meta["endpoints"]["agent_card"] = f"{base_url}/.well-known/agent-card.json"
return meta
status = {"running": False, "last_task": None}
def call_opencode(prompt: str, timeout: int = 300) -> str:
try:
result = subprocess.run(
["opencode", "run", prompt, "--format", "json"],
capture_output=True,
text=True,
timeout=timeout,
)
parts = []
for line in result.stdout.splitlines():
try:
ev = json.loads(line)
if ev.get("type") == "text":
parts.append(ev.get("part", {}).get("text", ""))
except json.JSONDecodeError:
pass
return "".join(parts).strip()
except subprocess.TimeoutExpired:
return "Error: opencode call timed out"
except Exception as e:
return f"Error: {str(e)}"
app = FastAPI()
@app.get("/health")
async def health() -> Dict[str, Any]:
meta = load_meta()
return {
"ok": True,
"agent": meta.get("id"),
"running": status["running"],
"version": meta.get("version"),
}
@app.get("/", response_class=HTMLResponse)
async def root() -> str:
return "<html><body><h1>A2A SIN-Code Agent</h1><p>See <a href='/ui'>UI</a></p></body></html>"
@app.get("/.well-known/agent-card.json")
@app.get("/.well-known/agent.json")
async def agent_card(request: Request) -> JSONResponse:
base_url = f"{'https' if request.url.scheme == 'https' else 'http'}://{request.headers.get('host', '')}"
return JSONResponse(build_card(base_url))
@app.post("/a2a/v1")
async def a2a(request: Request) -> JSONResponse:
rpc = await request.json()
rpc_id = rpc.get("id")
method = rpc.get("method")
if rpc.get("jsonrpc") != "2.0" or not isinstance(method, str):
return JSONResponse(
{
"jsonrpc": "2.0",
"id": rpc_id,
"error": {"code": -32600, "message": "invalid_request"},
},
status_code=400,
)
if method == "agent/getCard":
base_url = f"{'https' if request.url.scheme == 'https' else 'http'}://{request.headers.get('host', '')}"
return JSONResponse({"jsonrpc": "2.0", "id": rpc_id, "result": build_card(base_url)})
if method == "message/send":
params = rpc.get("params", {})
message = params.get("message", {})
parts = message.get("parts", [])
data = None
for part in parts:
if part.get("type") == "data":
data = part.get("data", {})
break
action = data.get("action", "agent.help") if isinstance(data, dict) else "agent.help"
if action == "agent.help":
result = {"help": "Specialized coding agent", "skills": load_meta().get("skills", [])}
elif action.startswith("sin.code."):
prompt = f"You are {load_meta().get('name')}. {data.get('description', '')}"
generated = call_opencode(prompt)
result = {"generated_code": generated, "action": action, "status": "completed"}
else:
result = {"error": f"Unknown action: {action}"}
task = {
"id": str(uuid4()),
"kind": "task",
"status": {
"state": "completed",
"timestamp": datetime.utcnow().isoformat() + "Z",
"message": {"role": "agent", "parts": [{"type": "text", "text": "completed"}]},
},
"artifacts": [
{
"id": str(uuid4()),
"name": "result",
"description": "Task result",
"parts": [{"type": "data", "data": result}],
}
],
"metadata": {"action": action},
}
return JSONResponse({"jsonrpc": "2.0", "id": rpc_id, "result": task})
return JSONResponse(
{"jsonrpc": "2.0", "id": rpc_id, "error": {"code": -32601, "message": "method_not_found"}},
status_code=404,
)
demo = gr.Blocks(title="A2A SIN-Code Agent")
with demo:
meta = load_meta()
gr.Markdown(f"# {meta.get('name', 'A2A SIN-Code Agent')}")
gr.Textbox(label="Agent ID", value=meta.get("id"), interactive=False)
gr.Textbox(label="Status", value="Running", interactive=False)
app = gr.mount_gradio_app(app, demo, path="/ui")
if __name__ == "__main__":
uvicorn.run(app, host="0.0.0.0", port=7860)
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