#!/bin/bash
# kiosk-session — launched by cage (Wayland) from kiosk.service.
# Starts Chromium fullscreen on the configured URL.
#
# KIOSK_URL comes from /etc/kiosk/kiosk.env (baked from the kiosk_url Packer
# var; a runtime config-agent could override it later). The Chromium profile is
# pinned to a tmpfs path so writes land in RAM (the root is read-only erofs +
# volatile overlay) — watch RAM if the page is heavy.
#
# VM/GPU notes: --disable-gpu + the pixman wlroots renderer (WLR_RENDERER in
# kiosk.env) keep this working on VMs with no real GPU. On hardware with a GPU,
# drop --disable-gpu (and set WLR_RENDERER=gles2) for compositing.
set -euo pipefail

BROWSER=$(command -v chromium-browser || command -v chromium)

exec "$BROWSER" \
    --kiosk --noerrdialogs --disable-infobars --incognito --no-first-run \
    --disable-session-crashed-bubble --start-maximized \
    --ozone-platform=wayland --disable-gpu \
    --user-data-dir=/tmp/kiosk-profile --disk-cache-dir=/tmp/kiosk-cache \
    "${KIOSK_URL:?KIOSK_URL not set in /etc/kiosk/kiosk.env}"