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barker/views/voucher/update.py

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+import datetime
+import uuid
+from decimal import Decimal
+
+import transaction
+from pyramid.httpexceptions import HTTPForbidden
+from pyramid.view import view_config
+from sqlalchemy import func
+
+from barker.exceptions import ValidationFailure
+from barker.models import Voucher, Kot, Inventory, InventoryModifier, Overview
+from barker.views.voucher import get_st_vat, get_settlements
+from barker.views.voucher.show import voucher_info
+
+
+@view_config(
+    request_method="POST", route_name="v1_vouchers_id", renderer="json", trans=True
+)
+def update(request):
+    now = datetime.now()
+    update_table = request.GET["u"]
+    json = request.json_body
+    id = uuid.UUID(request.matchdict["id"])
+    item = request.dbsession.query(Voucher).filter(Voucher.id == id).first()
+
+    if not json["Printed"] and "Print Kot" not in request.effective_principals:
+        raise HTTPForbidden("You are not allowed to print a kot")
+
+    if json["Printed"] and "Print Bill" not in request.effective_principals:
+        raise HTTPForbidden("You are not allowed to print bill")
+
+    if item.is_printed and "Edit Printed Bill" not in request.effective_principals:
+        raise HTTPForbidden("You are not allowed to edit a printed bill")
+
+    if item.is_printed and not json["Printed"]:
+        transaction.abort()
+        raise ValidationFailure("This Bill is already printed\nCannot add a Kot to it.")
+
+    if item.is_void:
+        transaction.abort()
+        raise ValidationFailure(
+            "This Bill is already void.\nReason: {0}".format(item.void_reason)
+        )
+
+    if item.is_printed and not json["Printed"]:
+        transaction.abort()
+        raise ValidationFailure("This Bill is already printed\nCannot add a Kot to it.")
+
+    item.pax = json["Pax"]
+    item.food_table_id = json["Table"]["FoodTableID"]
+    item.customer_id = json["Customer"]["CustomerID"]
+    item.voucher_type = json["VoucherType"]
+    if not item.is_printed and json["Printed"]:
+        item.date = now
+        type = [1, 3] if item.voucher_type in [1, 3] else [item.voucher_type]
+        item.bill_id = (
+            request.dbsession.query(func.coalesce(func.max(Voucher.bill_id), 0) + 1)
+            .filter(Voucher.voucher_type.in_(type))
+            .scalar()
+        )
+
+    item.is_printed = item.is_printed or json["Printed"]
+    item.user_id = json["User"]["UserID"]
+    item.last_edit_date = now
+    for k in item.kots:
+        for i in k.inventories:
+            i.service_tax_rate, i.vat_rate = get_st_vat(
+                i.service_tax_rate, i.vat_rate, item.voucher_type
+            )
+            i.discount = next(
+                Decimal(inv["Discount"])
+                for ko in json["Kots"]
+                for inv in ko["Inventories"]
+                if uuid.UUID(inv["InventoryID"]) == i.id
+            )
+    for k in (
+        k for k in json["Kots"] if k["KotID"] == "00000000-0000-0000-0000-000000000000"
+    ):
+        kot = Kot(
+            item.id,
+            item.food_table_id,
+            item.date,
+            item.user_id,
+            dbsession=request.dbsession,
+        )
+        item.kots.append(kot)
+        request.dbsession.add(kot)
+        for index, i in enumerate(k["Inventories"]):
+            st, vat = get_st_vat(i["ServiceTaxRate"], i["VatRate"], json["VoucherType"])
+            inv = Inventory(
+                kot.id,
+                uuid.UUID(i["ProductID"]),
+                i["Quantity"],
+                i["Price"],
+                i["Discount"],
+                i["IsHappyHour"],
+                i["ServiceTaxID"],
+                st,
+                i["VatID"],
+                vat,
+                index,
+            )
+            kot.inventories.append(inv)
+            request.dbsession.add(inv)
+            for m in i["Modifiers"]:
+                mod = InventoryModifier(None, uuid.UUID(m["ModifierID"]), 0)
+                inv.modifiers.append(mod)
+                request.dbsession.add(mod)
+    get_settlements(item, request.dbsession)
+    if update_table:
+        vft = (
+            request.dbsession.query(Overview)
+            .filter(Overview.voucher_id == item.id)
+            .first()
+        )
+        status = "printed" if item.is_printed else "running"
+        if vft is None:
+            item.status = Overview(
+                voucher_id=None, food_table_id=item.food_table_id, status=status
+            )
+            request.dbsession.add(item.status)
+        else:
+            vft.status = status
+            vft.food_table_id = item.food_table_id
+    transaction.commit()
+    item = request.dbsession.query(Voucher).filter(Voucher.id == item.id).first()
+    return voucher_info(item)
+
+