#!/usr/bin/env bash
###############################################################################
# launch.sh — start the built MarkText app (Electron/Chromium).
#
# Standalone: does not require build.sh to have been sourced. It only depends
# on the install tree produced by build.sh at /workspace/install/marktext.
###############################################################################
set -euo pipefail

APP_DIR="/workspace/install/marktext"
DESKTOP="${APP_DIR}/packages/desktop"
ELECTRON_BIN="${DESKTOP}/node_modules/electron/dist/electron"

if [[ ! -x "${ELECTRON_BIN}" ]]; then
  echo "launch.sh: Electron binary not found at ${ELECTRON_BIN}" >&2
  echo "           Run /workspace/output/build.sh first." >&2
  exit 1
fi

# --- Display -----------------------------------------------------------------
# A display is already running and managed by the pipeline; use it as-is.
export DISPLAY="${DISPLAY:-:0}"

# --- Locale resolution -------------------------------------------------------
# The main process loads translations from <cwd>/static/locales/*.min.json when
# PERF_TESTING=true (or NODE_ENV=development); otherwise it looks under
# process.resourcesPath (only valid for an electron-builder package). We launch
# the electron-vite build directly, so set PERF_TESTING and run with
# cwd=packages/desktop where static/locales lives.
export PERF_TESTING=true

# --- Accessibility (AT-SPI) --------------------------------------------------
# This is a genuine Electron/Chromium app. Without --force-renderer-accessibility
# Chromium exposes no AT-SPI tree (only a bare top-level window), which breaks
# downstream accessibility testing.
export ELECTRON_ENABLE_ACCESSIBILITY=1

# AT-SPI needs the app on the SHARED session bus. If one is already provided by
# the pipeline, join it (do NOT wrap in a private dbus-run-session — that would
# isolate the AT-SPI tree onto a bus the harness cannot see). Only fall back to
# the well-known per-user socket if the variable is unset.
if [[ -z "${DBUS_SESSION_BUS_ADDRESS:-}" ]]; then
  if [[ -S "/run/user/$(id -u)/bus" ]]; then
    export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(id -u)/bus"
  fi
fi

# --- Per-launch user-data-dir ------------------------------------------------
# The harness relaunches the app once per test module; a shared/fixed
# --user-data-dir triggers Chromium single-instance lock collisions so later
# launches fail. Use a UNIQUE dir per launch and clean it up on exit.
USER_DATA_DIR="$(mktemp -d /tmp/marktext-userdata-XXXXXX)"
cleanup() { rm -rf "${USER_DATA_DIR}"; }
trap cleanup EXIT

cd "${DESKTOP}"

# --- Launch ------------------------------------------------------------------
# * Pass the app directory (packages/desktop) as the entry so Electron reads
#   package.json -> main: ./out/main/index.js and getAppPath() is correct.
# * --no-sandbox: required when running as root and in the sandboxed CI/VM env.
# * --force-renderer-accessibility: expose the full AT-SPI tree (see above).
# * GPU disabled + software rasterizer off: the headless VM has no usable GPU;
#   without this Chromium aborts with "GPU process isn't usable. Goodbye."
# * exec + "$@": replace the shell so signals reach Electron, forwarding any
#   extra args (e.g. a file to open) the caller supplies.
exec "${ELECTRON_BIN}" \
  "${DESKTOP}" \
  --no-sandbox \
  --force-renderer-accessibility \
  --disable-gpu \
  --disable-gpu-compositing \
  --disable-software-rasterizer \
  --user-data-dir="${USER_DATA_DIR}" \
  "$@"