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from typing import Optional, Union
from extensions.ext_database import db
from libs.infinite_scroll_pagination import InfiniteScrollPagination
from models.account import Account
from models.model import App, EndUser
from models.web import SavedMessage
from services.message_service import MessageService
class SavedMessageService:
@classmethod
def pagination_by_last_id(cls, app_model: App, user: Optional[Union[Account, EndUser]],
last_id: Optional[str], limit: int) -> InfiniteScrollPagination:
saved_messages = db.session.query(SavedMessage).filter(
SavedMessage.app_id == app_model.id,
SavedMessage.created_by_role == ('account' if isinstance(user, Account) else 'end_user'),
SavedMessage.created_by == user.id
).order_by(SavedMessage.created_at.desc()).all()
message_ids = [sm.message_id for sm in saved_messages]
return MessageService.pagination_by_last_id(
app_model=app_model,
user=user,
last_id=last_id,
limit=limit,
include_ids=message_ids
)
@classmethod
def save(cls, app_model: App, user: Optional[Union[Account, EndUser]], message_id: str):
saved_message = db.session.query(SavedMessage).filter(
SavedMessage.app_id == app_model.id,
SavedMessage.message_id == message_id,
SavedMessage.created_by_role == ('account' if isinstance(user, Account) else 'end_user'),
SavedMessage.created_by == user.id
).first()
if saved_message:
return
message = MessageService.get_message(
app_model=app_model,
user=user,
message_id=message_id
)
saved_message = SavedMessage(
app_id=app_model.id,
message_id=message.id,
created_by_role='account' if isinstance(user, Account) else 'end_user',
created_by=user.id
)
db.session.add(saved_message)
db.session.commit()
@classmethod
def delete(cls, app_model: App, user: Optional[Union[Account, EndUser]], message_id: str):
saved_message = db.session.query(SavedMessage).filter(
SavedMessage.app_id == app_model.id,
SavedMessage.message_id == message_id,
SavedMessage.created_by_role == ('account' if isinstance(user, Account) else 'end_user'),
SavedMessage.created_by == user.id
).first()
if not saved_message:
return
db.session.delete(saved_message)
db.session.commit()
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