From d95b07706f3faf6d41375ce677d4721088f91e64 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Wed, 3 Jun 2026 23:58:15 +0000
Subject: [PATCH 1/2] Pin pyusb (and pyserial) explicitly in pi-clients
 requirements

python-escpos lists pyusb as an optional install extra, so a vanilla
pip install -r requirements.txt left the USB printer backend missing
the underlying library and every print attempt failed at runtime with
'Printing with USB connection requires a usb library to be installed'.

pyserial gets the same treatment for the serial backend, so both paths
work out of the box.
---
 pi-clients/requirements.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pi-clients/requirements.txt b/pi-clients/requirements.txt
index 8723fa2..993345f 100644
--- a/pi-clients/requirements.txt
+++ b/pi-clients/requirements.txt
@@ -1,5 +1,10 @@
 supabase>=2.5.0,<3
 pydantic>=2.6,<3
 python-escpos>=3.0,<4
+# python-escpos lists pyusb as an optional dep; without it the USB backend
+# fails at runtime with "Printing with USB connection requires a usb library
+# to be installed". Pin it explicitly so installs don't drift.
+pyusb>=1.2,<2
+pyserial>=3.5,<4
 evdev>=1.6,<2 ; sys_platform == "linux"
 python-dotenv>=1.0,<2

From 5d64d3f5ac41b6d0334444ca808b1dec8e5f28ff Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Fri, 5 Jun 2026 00:22:32 +0000
Subject: [PATCH 2/2] Prettier ticket rendering: double-width title, bold
 double-height date
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

format='ticket' now prints the title at double-width + double-height so
it reads at arm's length on the fridge, and the subtitle (date/time)
gets bold + double-height so it stands out without burning two paper
rows. list / daily / custom keep the slim layout that fits more lines
per inch — the shopping list format was already perfect.
---
 pi-clients/printer/render.py | 33 ++++++++++++++++++++++++++-------
 1 file changed, 26 insertions(+), 7 deletions(-)

diff --git a/pi-clients/printer/render.py b/pi-clients/printer/render.py
index 92233c6..9b318f5 100644
--- a/pi-clients/printer/render.py
+++ b/pi-clients/printer/render.py
@@ -29,14 +29,33 @@ def render(printer: _EscposLike, payload: PrintPayload, width: int = 32) -> None
     if width < 16:
         width = 16  # paranoia: don't divide by zero in layout math
 
-    # ---- title (double height + bold, centered) -------------------
-    printer.set(align="center", bold=True, double_height=True, double_width=False)
-    printer.text(_truncate(payload.title, width) + "\n")
-    printer.set(align="center", bold=False, double_height=False, double_width=False)
-
-    # ---- subtitle (centered, normal) ------------------------------
+    is_ticket = payload.format == "ticket"
+
+    # ---- title -----------------------------------------------------
+    # Tickets get a chunkier title (double width + double height) so they
+    # read at arm's length on the fridge. Lists keep the slimmer look that
+    # fits more lines per inch of paper.
+    if is_ticket:
+        printer.set(align="center", bold=True, double_height=True, double_width=True)
+        # Double-width chars take 2 cols, so the practical width halves.
+        printer.text(_truncate(payload.title, width // 2) + "\n")
+    else:
+        printer.set(align="center", bold=True, double_height=True, double_width=False)
+        printer.text(_truncate(payload.title, width) + "\n")
+
+    # ---- subtitle --------------------------------------------------
     if payload.subtitle:
-        printer.text(_truncate(payload.subtitle, width) + "\n")
+        if is_ticket:
+            # Bold + double-height (not double-width) — bigger date without
+            # eating two paper rows of vertical space.
+            printer.set(align="center", bold=True, double_height=True, double_width=False)
+            printer.text(_truncate(payload.subtitle, width) + "\n")
+        else:
+            printer.set(align="center", bold=False, double_height=False, double_width=False)
+            printer.text(_truncate(payload.subtitle, width) + "\n")
+
+    # Reset to plain and draw the divider.
+    printer.set(align="center", bold=False, double_height=False, double_width=False)
     printer.text("-" * width + "\n")
 
     # ---- body lines ----------------------------------------------