[FIX] hw_escpos: cashdrawer doesn't open

With some escpos printers the cash drawer did still not open after
previous fixes. One of the problemetic printers is the Epson TM-m30.

This fix will check the status of the drawer and try to open it up to 5
times. The fix is successfully tested with the TM-m30.

closes odoo/odoo#33328

Signed-off-by: pimodoo <pimodoo@users.noreply.github.com>

addons/hw_escpos/escpos/escpos.py

@@ -885,14 +885,23 @@ class Escpos:
             self._raw(PAPER_FULL_CUT)
 
 
-    def cashdraw(self, pin):
-        """ Send pulse to kick the cash drawer """
-        if pin == 2:
-            self._raw(CD_KICK_2)
-        elif pin == 5:
-            self._raw(CD_KICK_5)
-        else:
-            raise CashDrawerError()
+    def cashdraw(self, pin, tries=5):
+        """ Send pulse to kick the cash drawer
+
+        With some printers the drawer will not open after one pulse, for this reason we will check
+        the drawer status up to 'tries' times and send a new pulse if the drawer is still closed. If the
+        drawer status is open, we will stop sending pulses.
+        """
+        for i in range(tries):
+            if pin == 2:
+                self._raw(CD_KICK_2)
+            elif pin == 5:
+                self._raw(CD_KICK_5)
+            else:
+                raise CashDrawerError()
+
+            if i != tries - 1 and not self.get_printer_status()['printer']['drawer_pin_high']:
+                break
 
 
     def hw(self, hw):