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