# -*- coding: utf-8 -*-
"""Debug helpers for context/token evaluation."""
from __future__ import annotations
import asyncio
import json
import os
import urllib.request
from pathlib import Path
from typing import Any, Dict
from data_juicer_agents.adapters.agentscope import compact_payload_for_model
# Reference context windows used for percentage reporting.
_WINDOW_30K = 30000
_WINDOW_50K = 50000
_DEFAULT_QWEN_BASE_URL = "https://dashscope.aliyuncs.com/compatible-mode/v1"
_QWEN_PROBE_SYSTEM_PROMPT = "You only estimate and summarize tool results."
def _success_payload(*, action: str, **data: Any) -> Dict[str, Any]:
payload = {"ok": True, "action": action}
payload.update(data)
return payload
def _error_payload(
*, action: str, message: str, error_type: str, **data: Any
) -> Dict[str, Any]:
payload = {
"ok": False,
"action": action,
"error_type": error_type,
"message": str(message),
}
payload.update(data)
return payload
def _emit_json(payload: Dict[str, Any]) -> None:
print(json.dumps(payload, ensure_ascii=False, indent=2))
def _json_text(payload: Any) -> str:
return json.dumps(payload, ensure_ascii=False, separators=(",", ":"), default=str)
def _load_payload(args: Any) -> Dict[str, Any]:
raw_json = getattr(args, "input_json", None)
input_file = getattr(args, "input_file", None)
if raw_json is not None:
source = str(raw_json)
else:
source = Path(str(input_file)).expanduser().read_text(encoding="utf-8")
payload = json.loads(source)
if not isinstance(payload, dict):
raise ValueError("debug token-usage input must decode to a JSON object")
return payload
async def _char_token_count(text: str) -> int:
from agentscope.token import CharTokenCounter
value = await CharTokenCounter().count(text)
if isinstance(value, tuple):
return int(value[0])
return int(value)
def _resolve_qwen_model(args: Any) -> str:
return str(
getattr(args, "model", None)
or os.environ.get("DJA_SESSION_MODEL")
or "qwen-plus"
)
def _qwen_prompt_tokens(label: str, payload: Dict[str, Any], args: Any) -> int:
api_key = os.environ.get("DASHSCOPE_API_KEY") or os.environ.get(
"MODELSCOPE_API_TOKEN"
)
if not api_key:
raise RuntimeError(
"DASHSCOPE_API_KEY or MODELSCOPE_API_TOKEN is required"
" for provider=qwen"
)
base_url = str(
getattr(args, "base_url", None)
or os.environ.get("DJA_OPENAI_BASE_URL")
or _DEFAULT_QWEN_BASE_URL
).rstrip("/")
body = {
"model": _resolve_qwen_model(args),
"messages": [
{"role": "system", "content": _QWEN_PROBE_SYSTEM_PROMPT},
{
"role": "user",
"content": (
f"Summarize this {label} tool result in one short sentence:\n"
f"{_json_text(payload)}"
),
},
],
"max_tokens": max(int(getattr(args, "max_tokens", 1) or 1), 1),
"temperature": 0,
}
request = urllib.request.Request(
base_url + "/chat/completions",
data=json.dumps(body).encode("utf-8"),
headers={
"Authorization": f"Bearer {api_key}",
"Content-Type": "application/json",
},
method="POST",
)
timeout = int(getattr(args, "timeout", 120) or 120)
with urllib.request.urlopen(request, timeout=timeout) as response:
data = json.loads(response.read().decode("utf-8"))
usage = data.get("usage") or {}
prompt_tokens = usage.get("prompt_tokens")
if prompt_tokens is None:
raise RuntimeError("qwen response did not include usage.prompt_tokens")
return int(prompt_tokens)
async def _measure_char(
tool_name: str,
full_payload: Dict[str, Any],
compact_payload: Dict[str, Any],
) -> Dict[str, Any]:
full_text = _json_text(full_payload)
compact_text = _json_text(compact_payload)
full_tokens = await _char_token_count(full_text)
compact_tokens = await _char_token_count(compact_text)
return _usage_payload(
provider="char",
full_tokens=full_tokens,
compact_tokens=compact_tokens,
full_chars=len(full_text),
compact_chars=len(compact_text),
tool_name=tool_name,
model=None,
)
def _measure_qwen(
tool_name: str,
full_payload: Dict[str, Any],
compact_payload: Dict[str, Any],
args: Any,
) -> Dict[str, Any]:
full_tokens = _qwen_prompt_tokens(tool_name + " full", full_payload, args)
compact_tokens = _qwen_prompt_tokens(tool_name + " compact", compact_payload, args)
return _usage_payload(
provider="qwen",
full_tokens=full_tokens,
compact_tokens=compact_tokens,
full_chars=len(_json_text(full_payload)),
compact_chars=len(_json_text(compact_payload)),
tool_name=tool_name,
model=_resolve_qwen_model(args),
)
def _usage_payload(
*,
provider: str,
full_tokens: int,
compact_tokens: int,
full_chars: int,
compact_chars: int,
tool_name: str,
model: str | None,
) -> Dict[str, Any]:
saved_tokens = max(full_tokens - compact_tokens, 0)
saved_pct = round(saved_tokens / full_tokens * 100, 2) if full_tokens else 0.0
return _success_payload(
action="debug_token_usage",
provider=provider,
tool_name=tool_name,
model=model,
full_chars=full_chars,
compact_chars=compact_chars,
full_tokens=full_tokens,
compact_tokens=compact_tokens,
saved_tokens=saved_tokens,
saved_pct=saved_pct,
full_pct_30k=round(full_tokens / _WINDOW_30K * 100, 2),
compact_pct_30k=round(compact_tokens / _WINDOW_30K * 100, 2),
full_pct_50k=round(full_tokens / _WINDOW_50K * 100, 2),
compact_pct_50k=round(compact_tokens / _WINDOW_50K * 100, 2),
compaction_enabled_env=os.environ.get(
"DJA_TOOL_RESULT_COMPACTION_ENABLED", "true"
),
)
def _execute_token_usage(args: Any) -> tuple[Dict[str, Any], int]:
tool_name = str(getattr(args, "tool_name", "") or "").strip()
try:
payload = _load_payload(args)
except (OSError, ValueError, json.JSONDecodeError) as exc:
return (
_error_payload(
action="debug_token_usage",
message=str(exc),
error_type="invalid_input",
),
2,
)
compact = compact_payload_for_model(tool_name, payload)
provider = str(getattr(args, "provider", "char") or "char").strip().lower()
try:
if provider == "char":
result = asyncio.run(_measure_char(tool_name, payload, compact))
elif provider == "qwen":
result = _measure_qwen(tool_name, payload, compact, args)
else:
return (
_error_payload(
action="debug_token_usage",
message=f"unsupported token usage provider: {provider}",
error_type="unsupported_provider",
),
2,
)
except Exception as exc: # debug command must surface failures as JSON
return (
_error_payload(
action="debug_token_usage",
message=str(exc),
error_type="token_usage_failed",
provider=provider,
),
4,
)
return result, 0
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def run_debug(args: Any) -> int:
action = str(getattr(args, "debug_action", "") or "").strip()
if action == "token-usage":
payload, code = _execute_token_usage(args)
else:
payload = _error_payload(
action="debug",
message=f"unsupported debug action: {action}",
error_type="unsupported_action",
)
code = 2
_emit_json(payload)
return int(code)
__all__ = ["run_debug"]
