from datetime import datetime

from app.models import KnowledgeModel, GroupModel, DialogModel, ConversationModel, group_dialog_table
from app.models.user_model import UserModel
from Log import logger


async def get_dialog_list(db, user_id, keyword, page_size, page_index):
    user = db.query(UserModel).filter(UserModel.id == user_id).first()
    if user is None:
        return {"rows": []}
    if user.permission == "admin":
        query = db.query(DialogModel)
    else:
        group_list = [i.id for i in user.groups]
        query = db.query(DialogModel)
        query = query.filter(DialogModel.tenant_id == user_id)
        query = query.union(
            db.query(DialogModel).join(
                group_dialog_table,
                DialogModel.id == group_dialog_table.c.dialog_id
            ).filter(
                group_dialog_table.c.group_id.in_(group_list)
            )
        )
    if keyword:
        query = query.filter(DialogModel.name.like('%{}%'.format(keyword)))
    total = query.count()
    if page_size:
        query = query.limit(page_size).offset((page_index - 1) * page_size)

    rows = []
    user_id_set = set()
    for kld in query.all():
        user_id_set.add(kld.tenant_id)
        rows.append(kld.to_json())
    print(rows)
    user_dict = {i.id: i.to_dict() for i in db.query(UserModel).filter(UserModel.id.in_(user_id_set)).all()}
    for r in rows:
        r["user"] = user_dict.get(r["user_id"], {})
    return {"total":  total, "rows": rows}


async def update_session_history(db, data: dict, user_id):
    session_id = data.get("id")
    if not session_id:
        logger.error("更新回话记录失败！{}".format(data))
        return
    data["create_date"] = datetime.strptime(data["create_date"], '%a, %d %b %Y %H:%M:%S %Z')
    data["update_date"] = datetime.strptime(data["update_date"], '%a, %d %b %Y %H:%M:%S %Z')
    conversation = db.query(ConversationModel).filter(ConversationModel.id == session_id).first()
    if not conversation:
        try:
            data["tenant_id"] = user_id
            conversation_model = ConversationModel(**data)
            db.add(conversation_model)
            db.commit()
        except Exception as e:
            logger.error(e)
            db.rollback()
    else:
        try:
            # data["tenant_id"] = user_id
            del data["id"]
            db.query(ConversationModel).filter(ConversationModel.id == session_id).update(data)
            db.commit()
        except Exception as e:
            logger.error(e)
            db.rollback()


async def get_session_history(db, user_id, dialog_id):
    session_list = db.query(ConversationModel).filter(ConversationModel.tenant_id.__eq__(user_id),
                                                      ConversationModel.dialog_id.__eq__(dialog_id)).order_by(
        ConversationModel.update_time.desc()).all()
    return [i.to_json() for i in session_list]