#!/usr/bin/env bash
set -Eeuo pipefail

. /run/helpers.sh

[ ! -f "/run/init_container.sh" ] && error "Script must run inside Docker container!" && exit 11
[ "$(id -u)" -ne "0" ] && error "Script must be executed with root privileges." && exit 12

APP="OpenWrt"
SUPPORT="https://github.com/AlbrechtL/openwrt-docker"

echo "❯ Starting $APP for Docker v$(</run/version)..."
echo "❯ For support visit $SUPPORT"
echo

# Show alpine version
echo "**** Alpine release ****"
cat /etc/*release*
echo "**** End Alpine release information ****"

echo "CPU architecture: '$(arch)'"

# Check system
if [ ! -d "/dev/shm" ]; then
  error "Directory /dev/shm not found!" && exit 14
else
  [ ! -d "/run/shm" ] && ln -s /dev/shm /run/shm
fi

# Check folder
STORAGE="/storage"
if [ ! -d "$STORAGE" ]; then
  error "Storage folder ($STORAGE) not found!" && exit 13
fi

# Check u-OS app
if [[ -z "${IS_U_OS_APP}" ]]; then
  info "Detected generic container"
  cp -f /var/www/nginx.conf.generic /etc/nginx/http.d/web.conf
else
  info "Detected u-OS app"
  cp -f  /var/www/nginx.conf.u-os-app /etc/nginx/http.d/web.conf
fi

# Generate page for meta information
echo "* Content of /var/vm/openwrt_metadata.conf *" > /var/www/system_info.txt
cat /var/vm/openwrt_metadata.conf >> /var/www/system_info.txt
echo $'\n' >> /var/www/system_info.txt

echo "* Enviroment variables *" >> /var/www/system_info.txt
export >> /var/www/system_info.txt
echo $'\n' >> /var/www/system_info.txt

echo "* USB devices *" >> /var/www/system_info.txt
lsusb >> /var/www/system_info.txt

# ******* nginx handling *******
cp -r /var/www/* /run/shm

# ******* LuCi forwarding handling *******
if [[ $FORWARD_LUCI = "true" && $LAN_IF = "veth" ]]; then
  info "Enable LuCI forwarding to host LAN at port 9000"
  LUCI_COMMAND="nsenter --target 1 --uts --net --ipc nginx -c /var/www/nginx-luci.conf"
else
  if [[ $FORWARD_LUCI = "true" ]]; then
    warn "LuCI forwarding is only available if environment variable is set to LAN_IF: 'veth'"
  fi
  LUCI_COMMAND=""
fi

# Start processes
exec multirun \
  "qemu-openwrt-web-backend" \
  "nginx" \
  "/run/run_openwrt.sh" \
  $LUCI_COMMAND