352 lines
11 KiB
Python
352 lines
11 KiB
Python
import uuid
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from datetime import datetime
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from decimal import Decimal
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from typing import List, Optional
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import brewman.schemas.input as schema_in
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import brewman.schemas.voucher as output
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from fastapi import APIRouter, Depends, File, HTTPException, Request, Security, status
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from sqlalchemy.exc import SQLAlchemyError
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from sqlalchemy.orm import Session
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from ..core.security import get_current_active_user as get_user
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from ..core.session import get_date, set_date
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from ..db.session import SessionLocal
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from ..models import AccountBase, CostCentre
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from ..models.voucher import Batch, Inventory, Journal, Voucher, VoucherType
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from ..schemas.auth import UserToken
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from .db_image import save_files, update_files
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from .voucher import (
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blank_voucher,
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check_voucher_edit_allowed,
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check_voucher_lock_info,
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voucher_info,
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)
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router = APIRouter()
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# Dependency
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def get_db() -> Session:
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try:
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db = SessionLocal()
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yield db
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finally:
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db.close()
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@router.post("", response_model=output.Voucher)
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def save_route(
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request: Request,
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data: schema_in.IssueIn = Depends(schema_in.IssueIn.load_form),
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db: Session = Depends(get_db),
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i: List[bytes] = File(None),
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t: List[bytes] = File(None),
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user: UserToken = Security(get_user, scopes=["issue"]),
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):
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try:
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item, batch_consumed = save(data, user, db)
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amount = save_inventories(item, data.inventories, batch_consumed, db)
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save_journals(item, data.source, data.destination, amount, db)
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save_files(item.id, i, t, db)
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db.commit()
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set_date(data.date_.strftime("%d-%b-%Y"), request.session)
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info = voucher_info(item, db)
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return info
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except SQLAlchemyError as e:
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db.rollback()
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=str(e),
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)
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except Exception:
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db.rollback()
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raise
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def save(
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data: schema_in.IssueIn, user: UserToken, db: Session
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) -> (Voucher, Optional[bool]):
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check_voucher_lock_info(None, data.date_, db)
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voucher = Voucher(
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date=data.date_,
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narration=data.narration,
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is_starred=data.is_starred,
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user_id=user.id_,
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type_=VoucherType.by_name(data.type_),
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)
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db.add(voucher)
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if data.source.id_ == data.destination.id_:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail="Source cannot be the same as destination",
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)
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if data.source.id_ == CostCentre.cost_centre_purchase():
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batch_consumed = True
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elif data.destination.id_ == CostCentre.cost_centre_purchase():
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batch_consumed = False
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else:
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batch_consumed = None
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return voucher, batch_consumed
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def save_inventories(
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voucher: Voucher,
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inventories: List[schema_in.Inventory],
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batch_consumed: Optional[bool],
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db: Session,
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) -> Decimal:
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amount: Decimal = Decimal(0)
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for item in inventories:
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batch = db.query(Batch).filter(Batch.id == item.batch.id_).first()
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if batch_consumed and item.quantity > batch.quantity_remaining:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail=f"Quantity available is {batch.quantity_remaining} only",
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)
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if batch.name > voucher.date:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail=f"Batch of {batch.product.name} was purchased after the issue date",
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)
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if batch_consumed is None:
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pass
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elif batch_consumed:
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batch.quantity_remaining -= item.quantity
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else:
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batch.quantity_remaining += item.quantity
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item = Inventory(
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id_=item.id_,
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product=batch.product,
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quantity=item.quantity,
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rate=batch.rate,
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tax=batch.tax,
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discount=batch.discount,
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batch=batch,
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)
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voucher.inventories.append(item)
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db.add(item)
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amount += round(item.amount, 2)
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return amount
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def save_journals(
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voucher: Voucher,
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source: schema_in.CostCentreLink,
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destination: schema_in.CostCentreLink,
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amount: Decimal,
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db: Session,
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):
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s = Journal(
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debit=-1,
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account_id=AccountBase.all_purchases(),
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amount=amount,
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cost_centre_id=source.id_,
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)
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d = Journal(
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debit=1,
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account_id=AccountBase.all_purchases(),
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amount=amount,
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cost_centre_id=destination.id_,
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)
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voucher.journals.append(s)
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db.add(s)
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voucher.journals.append(d)
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db.add(d)
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@router.put("/{id_}", response_model=output.Voucher)
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def update_route(
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id_: uuid.UUID,
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request: Request,
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data: schema_in.IssueIn = Depends(schema_in.IssueIn.load_form),
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db: Session = Depends(get_db),
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i: List[bytes] = File(None),
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t: List[bytes] = File(None),
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user: UserToken = Security(get_user, scopes=["issue"]),
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):
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try:
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item, batch_consumed = update(id_, data, user, db)
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amount = update_inventories(item, data.inventories, batch_consumed, db)
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update_journals(item, data.source, data.destination, amount)
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update_files(item.id, data.files, i, t, db)
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db.commit()
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set_date(data.date_.strftime("%d-%b-%Y"), request.session)
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# item: Voucher = db.query(Voucher).filter(Voucher.id == item.id).first()
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return voucher_info(item, db)
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except SQLAlchemyError as e:
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db.rollback()
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=str(e),
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)
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except Exception:
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db.rollback()
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raise
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def update(
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id_: uuid.UUID, data: schema_in.IssueIn, user: UserToken, db: Session
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) -> (Voucher, Optional[bool]):
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voucher: Voucher = db.query(Voucher).filter(Voucher.id == id_).first()
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check_voucher_lock_info(voucher.date, data.date_, db)
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check_voucher_edit_allowed(voucher, user)
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voucher.date = data.date_
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voucher.is_starred = data.is_starred
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voucher.narration = data.narration
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voucher.user_id = user.id_
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voucher.posted = False
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voucher.last_edit_date = datetime.utcnow()
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for item in voucher.journals:
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if item.debit == 1:
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destination = item.cost_centre_id
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else:
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source = item.cost_centre_id
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if source == CostCentre.cost_centre_purchase():
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old_batch_consumed = True
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elif destination == CostCentre.cost_centre_purchase():
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old_batch_consumed = False
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else:
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old_batch_consumed = None
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if data.source.id_ == CostCentre.cost_centre_purchase():
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new_batch_consumed = True
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elif data.destination.id_ == CostCentre.cost_centre_purchase():
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new_batch_consumed = False
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else:
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new_batch_consumed = None
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if new_batch_consumed != old_batch_consumed:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail="Purchase cost centre cannot be changed",
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)
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return voucher, new_batch_consumed
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def update_inventories(
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voucher: Voucher,
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inventories: List[schema_in.Inventory],
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batch_consumed: Optional[bool],
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db: Session,
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):
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amount: Decimal = Decimal(0)
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for it in range(len(voucher.inventories), 0, -1):
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item = voucher.inventories[it - 1]
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found = False
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for j in range(len(inventories), 0, -1):
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i = inventories[j - 1]
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if item.id == i.id_:
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batch = db.query(Batch).filter(Batch.id == i.batch.id_).first()
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found = True
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if item.batch_id != batch.id:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail="Product / Batch cannot be changed",
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)
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if (
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batch_consumed
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and i.quantity - item.quantity > item.batch.quantity_remaining
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):
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail=f"Maximum quantity available for {item.product.full_name} is {item.quantity + item.batch.quantity_remaining}",
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)
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if item.batch.name > voucher.date:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail=f"Batch of {item.product.name} was purchased after the issue date",
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)
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if batch_consumed is None:
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pass
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elif batch_consumed:
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item.batch.quantity_remaining -= i.quantity - item.quantity
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else:
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item.batch.quantity_remaining += i.quantity - item.quantity
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item.quantity = i.quantity
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item.rate = batch.rate
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item.tax = batch.tax
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item.discount = batch.discount
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amount += round(item.amount, 2)
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inventories.remove(i)
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break
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if not found:
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if batch_consumed is None:
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pass
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elif batch_consumed:
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item.batch.quantity_remaining += item.quantity
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else:
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if item.batch.quantity_remaining < item.quantity:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
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detail=f"Product {item.product.name} cannot be removed, minimum quantity is {item.batch.quantity_remaining}",
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)
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item.batch.quantity_remaining -= item.quantity
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db.delete(item)
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voucher.inventories.remove(item)
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amount += save_inventories(voucher, inventories, batch_consumed, db)
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return amount
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def update_journals(
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voucher: Voucher,
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source: schema_in.CostCentreLink,
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destination: schema_in.CostCentreLink,
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amount: Decimal,
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):
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for i in range(len(voucher.journals), 0, -1):
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item = voucher.journals[i - 1]
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if item.debit == -1:
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item.cost_centre_id = source.id_
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item.amount = amount
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else:
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item.cost_centre_id = destination.id_
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item.amount = amount
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@router.get("/{id_}", response_model=output.Voucher)
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def get_id(
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id_: uuid.UUID,
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db: Session = Depends(get_db),
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user: UserToken = Security(get_user, scopes=["issue"]),
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):
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try:
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item: Voucher = db.query(Voucher).filter(Voucher.id == id_).first()
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return voucher_info(item, db)
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except SQLAlchemyError as e:
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db.rollback()
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=str(e),
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)
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except Exception:
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db.rollback()
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raise
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@router.get("", response_model=output.Voucher)
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def show_blank(
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request: Request,
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date: str = None,
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source: str = None,
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destination: str = None,
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db: Session = Depends(get_db),
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user: UserToken = Security(get_user, scopes=["issue"]),
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):
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date_ = date or get_date(request.session)
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additional_info = {"date": date_, "type": "Issue"}
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if source:
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additional_info["source"] = source
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if destination:
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additional_info["destination"] = destination
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return blank_voucher(additional_info, db)
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