82 lines
2.5 KiB
Python
82 lines
2.5 KiB
Python
"""Common helper functions"""
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import json
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from datetime import datetime, date
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from backend import db
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from backend.models import Conversation, Message, User, TokenUsage
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def get_or_create_default_user():
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"""Get or create default user"""
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user = User.query.filter_by(username="default").first()
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if not user:
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user = User(username="default", password=None)
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db.session.add(user)
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db.session.commit()
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return user
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def ok(data=None, message=None):
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"""Success response helper"""
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body = {"code": 0}
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if data is not None:
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body["data"] = data
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if message is not None:
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body["message"] = message
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from flask import jsonify
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return jsonify(body)
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def err(code, message):
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"""Error response helper"""
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from flask import jsonify
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return jsonify({"code": code, "message": message}), code
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def to_dict(inst, **extra):
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"""Convert model instance to dict"""
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d = {c.name: getattr(inst, c.name) for c in inst.__table__.columns}
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for k in ("created_at", "updated_at"):
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if k in d and hasattr(d[k], "strftime"):
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d[k] = d[k].strftime("%Y-%m-%dT%H:%M:%SZ")
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# Filter out None values for cleaner API response
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d = {k: v for k, v in d.items() if v is not None}
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d.update(extra)
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return d
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def record_token_usage(user_id, model, prompt_tokens, completion_tokens):
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"""Record token usage"""
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today = date.today()
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usage = TokenUsage.query.filter_by(
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user_id=user_id, date=today, model=model
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).first()
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if usage:
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usage.prompt_tokens += prompt_tokens
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usage.completion_tokens += completion_tokens
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usage.total_tokens += prompt_tokens + completion_tokens
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else:
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usage = TokenUsage(
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user_id=user_id,
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date=today,
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model=model,
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prompt_tokens=prompt_tokens,
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completion_tokens=completion_tokens,
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total_tokens=prompt_tokens + completion_tokens,
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)
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db.session.add(usage)
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db.session.commit()
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def build_glm_messages(conv):
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"""Build messages list for GLM API from conversation"""
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msgs = []
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if conv.system_prompt:
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msgs.append({"role": "system", "content": conv.system_prompt})
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# Query messages directly to avoid detached instance warning
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messages = Message.query.filter_by(conversation_id=conv.id).order_by(Message.created_at.asc()).all()
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for m in messages:
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msgs.append({"role": m.role, "content": m.content})
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return msgs
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