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#
# Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from uuid import uuid4
from api.db import StatusEnum
from api.db.db_models import Conversation, DB
from api.db.services.api_service import API4ConversationService
from api.db.services.common_service import CommonService
from api.db.services.dialog_service import DialogService, chat
from api.utils import get_uuid
import json
class ConversationService(CommonService):
model = Conversation
@classmethod
@DB.connection_context()
def get_list(cls,dialog_id,page_number, items_per_page, orderby, desc, id , name):
sessions = cls.model.select().where(cls.model.dialog_id ==dialog_id)
if id:
sessions = sessions.where(cls.model.id == id)
if name:
sessions = sessions.where(cls.model.name == name)
if desc:
sessions = sessions.order_by(cls.model.getter_by(orderby).desc())
else:
sessions = sessions.order_by(cls.model.getter_by(orderby).asc())
sessions = sessions.paginate(page_number, items_per_page)
return list(sessions.dicts())
def structure_answer(conv, ans, message_id, session_id):
reference = ans["reference"]
if not isinstance(reference, dict):
reference = {}
ans["reference"] = {}
def get_value(d, k1, k2):
return d.get(k1, d.get(k2))
chunk_list = [{
"id": get_value(chunk, "chunk_id", "id"),
"content": get_value(chunk, "content", "content_with_weight"),
"document_id": get_value(chunk, "doc_id", "document_id"),
"document_name": get_value(chunk, "docnm_kwd", "document_name"),
"dataset_id": get_value(chunk, "kb_id", "dataset_id"),
"image_id": get_value(chunk, "image_id", "img_id"),
"positions": get_value(chunk, "positions", "position_int"),
} for chunk in reference.get("chunks", [])]
reference["chunks"] = chunk_list
ans["id"] = message_id
ans["session_id"] = session_id
if not conv:
return ans
if not conv.message:
conv.message = []
if not conv.message or conv.message[-1].get("role", "") != "assistant":
conv.message.append({"role": "assistant", "content": ans["answer"], "id": message_id})
else:
conv.message[-1] = {"role": "assistant", "content": ans["answer"], "id": message_id}
if conv.reference:
conv.reference[-1] = reference
return ans
def completion(tenant_id, chat_id, question, name="New session", session_id=None, stream=True, **kwargs):
assert name, "`name` can not be empty."
dia = DialogService.query(id=chat_id, tenant_id=tenant_id, status=StatusEnum.VALID.value)
assert dia, "You do not own the chat."
if not session_id:
session_id = get_uuid()
conv = {
"id":session_id ,
"dialog_id": chat_id,
"name": name,
"message": [{"role": "assistant", "content": dia[0].prompt_config.get("prologue")}]
}
ConversationService.save(**conv)
yield "data:" + json.dumps({"code": 0, "message": "",
"data": {
"answer": conv["message"][0]["content"],
"reference": {},
"audio_binary": None,
"id": None,
"session_id": session_id
}},
ensure_ascii=False) + "\n\n"
yield "data:" + json.dumps({"code": 0, "message": "", "data": True}, ensure_ascii=False) + "\n\n"
return
conv = ConversationService.query(id=session_id, dialog_id=chat_id)
if not conv:
raise LookupError("Session does not exist")
conv = conv[0]
msg = []
question = {
"content": question,
"role": "user",
"id": str(uuid4())
}
conv.message.append(question)
for m in conv.message:
if m["role"] == "system":
continue
if m["role"] == "assistant" and not msg:
continue
msg.append(m)
message_id = msg[-1].get("id")
e, dia = DialogService.get_by_id(conv.dialog_id)
if not conv.reference:
conv.reference = []
conv.message.append({"role": "assistant", "content": "", "id": message_id})
conv.reference.append({"chunks": [], "doc_aggs": []})
if stream:
try:
for ans in chat(dia, msg, True, **kwargs):
ans = structure_answer(conv, ans, message_id, session_id)
yield "data:" + json.dumps({"code": 0, "data": ans}, ensure_ascii=False) + "\n\n"
ConversationService.update_by_id(conv.id, conv.to_dict())
except Exception as e:
yield "data:" + json.dumps({"code": 500, "message": str(e),
"data": {"answer": "**ERROR**: " + str(e), "reference": []}},
ensure_ascii=False) + "\n\n"
yield "data:" + json.dumps({"code": 0, "data": True}, ensure_ascii=False) + "\n\n"
else:
answer = None
for ans in chat(dia, msg, False, **kwargs):
answer = structure_answer(conv, ans, message_id, session_id)
ConversationService.update_by_id(conv.id, conv.to_dict())
break
yield answer
def iframe_completion(dialog_id, question, session_id=None, stream=True, **kwargs):
e, dia = DialogService.get_by_id(dialog_id)
assert e, "Dialog not found"
if not session_id:
session_id = get_uuid()
conv = {
"id": session_id,
"dialog_id": dialog_id,
"user_id": kwargs.get("user_id", ""),
"message": [{"role": "assistant", "content": dia.prompt_config["prologue"]}]
}
API4ConversationService.save(**conv)
yield "data:" + json.dumps({"code": 0, "message": "",
"data": {
"answer": conv["message"][0]["content"],
"reference": {},
"audio_binary": None,
"id": None,
"session_id": session_id
}},
ensure_ascii=False) + "\n\n"
yield "data:" + json.dumps({"code": 0, "message": "", "data": True}, ensure_ascii=False) + "\n\n"
return
else:
session_id = session_id
e, conv = API4ConversationService.get_by_id(session_id)
assert e, "Session not found!"
if not conv.message:
conv.message = []
messages = conv.message
question = {
"role": "user",
"content": question,
"id": str(uuid4())
}
messages.append(question)
msg = []
for m in messages:
if m["role"] == "system":
continue
if m["role"] == "assistant" and not msg:
continue
msg.append(m)
if not msg[-1].get("id"):
msg[-1]["id"] = get_uuid()
message_id = msg[-1]["id"]
if not conv.reference:
conv.reference = []
conv.reference.append({"chunks": [], "doc_aggs": []})
if stream:
try:
for ans in chat(dia, msg, True, **kwargs):
ans = structure_answer(conv, ans, message_id, session_id)
yield "data:" + json.dumps({"code": 0, "message": "", "data": ans},
ensure_ascii=False) + "\n\n"
API4ConversationService.append_message(conv.id, conv.to_dict())
except Exception as e:
yield "data:" + json.dumps({"code": 500, "message": str(e),
"data": {"answer": "**ERROR**: " + str(e), "reference": []}},
ensure_ascii=False) + "\n\n"
yield "data:" + json.dumps({"code": 0, "message": "", "data": True}, ensure_ascii=False) + "\n\n"
else:
answer = None
for ans in chat(dia, msg, False, **kwargs):
answer = structure_answer(conv, ans, message_id, session_id)
API4ConversationService.append_message(conv.id, conv.to_dict())
break
yield answer
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