#!/usr/bin/env bash
# Launch Brave with the debugging port socialmag talks to.
#
# socialmag never holds a password. It drives a browser that is already signed
# in as you, which means there has to be a browser, listening, with your
# sessions in it. This script is that browser.
#
# Sign in to your platforms once in the window this opens. The profile is
# separate from your everyday Brave on purpose: socialmag navigates tabs and
# clicks things, and it should not be doing that in the window you are reading
# in.
set -euo pipefail

PORT="${SOCIALMAG_CDP_PORT:-9336}"
PROFILE="${SOCIALMAG_BRAVE_PROFILE:-$HOME/.local/share/brave-socialmag}"

BRAVE=""
for candidate in brave brave-browser brave-browser-stable; do
  if command -v "$candidate" >/dev/null 2>&1; then
    BRAVE="$(command -v "$candidate")"
    break
  fi
done

if [[ -z "$BRAVE" ]]; then
  echo "error: no brave binary found on PATH" >&2
  echo "  looked for: brave, brave-browser, brave-browser-stable" >&2
  echo "  install Brave, or set BRAVE=/path/to/brave and re-run" >&2
  exit 1
fi

if curl -sf --max-time 2 "http://127.0.0.1:${PORT}/json/version" >/dev/null 2>&1; then
  echo "error: something is already listening on 127.0.0.1:${PORT}" >&2
  echo "  socialmag would drive that browser, not the one this script opens." >&2
  echo "  close it first, or set SOCIALMAG_CDP_PORT to a free port." >&2
  exit 1
fi

mkdir -p "$PROFILE"

echo "brave    : $BRAVE"
echo "profile  : $PROFILE"
echo "cdp      : http://127.0.0.1:${PORT}"
echo

# --disable-background-timer-throttling is load-bearing, not tidiness. socialmag
# reads five of six platforms in a HIDDEN tab so it never steals your focus. A
# throttled background tab stops running the timers those pages use to fetch
# their own data, and the reads come back empty with no error.
exec "$BRAVE" \
  --remote-debugging-port="$PORT" \
  --user-data-dir="$PROFILE" \
  --disable-background-timer-throttling \
  "$@"