#!/bin/bash

set -eo pipefail # exit on error, error on any fail in pipe (not just last cmd); add -x to print each cmd; see gist bash_strict_mode.md

# Remove chromium profile lock.
# When running in docker and then killing it, on the next run chromium displayed a dialog to unlock the profile which made the script time out.
# Maybe due to changed hostname of container or due to how the docker container kills playwright - didn't check.
# https://bugs.chromium.org/p/chromium/issues/detail?id=367048
rm -f /fgc/data/browser/SingletonLock

# Remove X server display lock, fix for `docker compose up` which reuses container which made it fail after initial run, https://github.com/vogler/free-games-claimer/issues/31
# echo $DISPLAY
# ls -l /tmp/.X11-unix/
rm -f /tmp/.X1-lock

# Check and export secrets to variables if exist
# Get list of VARIABLES with "_FILE" at the end
SECRETS_LIST=$(env | grep "_FILE")
if [ ! -z "$SECRETS_LIST" ]; then

    echo "Secrets were found, will try to convert them into the Variables..."

    # Will read one by one, remove "_FILE" from the end and get value from the file
    # Known bug: if you set "=" in the variable value, it will be converted to the space
    while read SECRETS; do
        SECRET_VALUE=$(echo $SECRETS | awk -F'[=]' '{ $1=""; print $0 }')
        # Remove unneeded space at the begging
        SECRET_VALUE=${SECRET_VALUE:1}
        SECRET_NAME=$(echo $SECRETS | awk -F'[=]' '{ print $1 }')
        # Remove "_FILE" at the end of the Variable Name
        SECRET_NAME=${SECRET_NAME::-5}

        # If file with value readable, use it to fetch value and export variable
        if [ -r "$SECRET_VALUE" ]; then
            echo "Setting $SECRET_NAME with value from $SECRET_VALUE"
            export "$SECRET_NAME"="$(cat "$SECRET_VALUE")"
        else
            echo "ERROR - $SECRETS is configured, but file not exist or not readable."
        fi
    done <<< $SECRETS_LIST

fi

# 6000+SERVERNUM is the TCP port Xvfb is listening on:
# SERVERNUM=$(echo "$DISPLAY" | sed 's/:\([0-9][0-9]*\).*/\1/')

# Options passed directly to the Xvfb server:
# -ac disables host-based access control mechanisms
# −screen NUM WxHxD creates the screen and sets its width, height, and depth

export DISPLAY=:1 # need to export this, otherwise playwright complains with 'Looks like you launched a headed browser without having a XServer running.'
Xvfb $DISPLAY -ac -screen 0 "${WIDTH}x${HEIGHT}x${DEPTH}" &
echo "Xvfb display server created screen with resolution ${WIDTH}x${HEIGHT}"
pw="-nopw"
[ -z "$VNC_PASSWORD" ] || pw="-passwd $VNC_PASSWORD"
x11vnc -display $DISPLAY -forever -shared -rfbport $VNC_PORT -bg $pw 2>/dev/null 1>&2
echo "VNC is running on port $VNC_PORT (no password!)"
websockify -D --web "/usr/share/novnc/" $NOVNC_PORT "localhost:$VNC_PORT" 2>/dev/null 1>&2 &
echo "noVNC (VNC via browser) is running on http://localhost:$NOVNC_PORT"
echo
exec tini -g -- "$@" # https://github.com/krallin/tini/issues/8 node/playwright respond to signals like ctrl-c, but unsure about zombie processes