Feature:

Basic infra to print stuff, not working

barker/models/master.py

@@ -303,7 +303,7 @@ class SectionPrinter(Base):
     menu_category_id = Column("menu_category_id", UUID(as_uuid=True), ForeignKey("menu_categories.id"))
     section_id = Column("section_id", UUID(as_uuid=True), ForeignKey("sections.id"), nullable=False)
     printer_id = Column("printer_id", UUID(as_uuid=True), ForeignKey("printers.id"), nullable=False)
-    copies = Column("copies", Numeric, nullable=False)
+    copies = Column("copies", Integer, nullable=False)
 
     menu_category = relationship("MenuCategory", backref="section_printers")
     section = relationship("Section", backref="section_printers")

barker/printing/__init__.py

@@ -0,0 +1,78 @@
+import re
+import socket
+import sys
+import uuid
+
+from sqlalchemy import or_
+from sqlalchemy.orm import Session
+
+from barker.models import SectionPrinter, Printer, Voucher
+
+
+def sent_to_printer(data, address, cut_code):
+    print(data, address, cut_code)
+    try:
+        regex = re.compile(r'pdl://(?P<host>[\w\d.-]+):(?P<port>[\d]+)')
+        match = regex.match(address)
+        s = socket.socket()
+        s.connect((match.group("host"), int(match.group("port"))))
+        s.send(bytearray(data + cut_code, "ascii"))
+    except LookupError as e:
+        print("Lookup error:", e)
+    except:
+        print("Unexpected error:", sys.exc_info()[0])
+    finally:
+        s.close()
+
+
+def design_kot(voucher, kot, items, copy_number):
+    s = (
+        f"KOT / BOT".center(42)
+        + "\n\r" + f"Copy No. {copy_number}:".center(42)
+        + "\n\r" + "".ljust(42, "-")
+        + "\n\r" + f"KOT ID : K-{voucher.kot_id:>5}/S-{kot.code:>5} {kot.date:%d-%b-%Y %H:%M}"
+        + "\n\r" + f"Table No.: {voucher.food_table.name}"
+        + "\n\r" + "".ljust(42, "-")
+        + "\n\r" + " Qty.  x Name                             "
+        + "\n\r" + "".ljust(42, "-")
+    )
+    for item in items:
+        name = (
+            "H H " + item.product.full_name
+            if item.is_happy_hour
+            else item.product.full_name
+        )
+        s += "\n\r" + f"{item.quantity:6.2} x {name:>33}"
+        for m in item.modifiers:
+            s += "\n\r" + f"      --- {m.name:>32}"
+    s += "\n\r" + "".ljust(42, "-")
+    return s
+
+
+def print_kot(voucher_id: uuid.UUID, db: Session):
+    voucher: Voucher = db.query(Voucher).filter(Voucher.id == voucher_id).first()
+    my_hash = {}
+    kot = voucher.kots[-1]
+    for item in kot.inventories:
+        printer, copies = (
+            db.query(Printer, SectionPrinter.copies)
+            .join(SectionPrinter.printer)
+            .filter(SectionPrinter.section_id == voucher.food_table.section_id)
+            .filter(
+                or_(
+                    SectionPrinter.menu_category_id == item.product.menu_category_id,
+                    SectionPrinter.menu_category_id == None,
+                )
+            ).order_by(SectionPrinter.menu_category_id)
+            .first()
+        )
+        key = (printer.id, copies)
+        if key not in my_hash:
+            my_hash[key] = (printer, [])
+        my_hash[key][1].append(item)
+    for key, value in my_hash.items():
+        printer_id, copies = key
+        printer, items = value
+        for c in range(int(copies)):
+            data = design_kot(voucher, kot, items, c)
+            sent_to_printer(data, printer.address, printer.cut_code)

barker/routers/voucher/save.py

@@ -20,6 +20,7 @@ from ...routers.voucher import (
     check_permissions,
     get_guest_book,
 )
+from barker.printing import print_kot
 
 router = APIRouter()
 
@@ -50,6 +51,8 @@ def save(
         if update_table:
             do_update_table(item, guest_book, db)
         db.commit()
+        # print_kot(item.id, db)
+
     except SQLAlchemyError as e:
         db.rollback()
         raise HTTPException(