#!/usr/bin/with-contenv bash

# Check if plugin installed. This is very basic check that doesn't involve database
function isPluginInstalled() {
  if [ -d "${PLUGIN_PATH}" ] || [ -f "${PLUGIN_PATH}.php" ]; then
    return 0
  fi
  return 1
}

# Install plugin
function installPlugin() {
  wp plugin install "${@}" >/dev/null 2>&1
  sleep 0.5
}

PLUGIN_LIST="${WORDPRESS_PLUGIN_LIST:-}"
PLUGIN_STRICT_INSTALL="${WORDPRESS_PLUGIN_INSTALL_STRICT:-false}"
WP_CONTENT_PATH="/var/www/${WEB_ROOT}/wp-content"

echo "> Automated WordPress Plugin Installer"
if [ -z "${PLUGIN_LIST}" ]; then
  echo "> No plugins defined. Skipping installation."
  exit 0
fi

echo "> About to install defined plugins"
for PLUGIN_EXPR in ${PLUGIN_LIST}; do
  IFS=':' read -ra PLUGIN <<<"${PLUGIN_EXPR}"

  PLUGIN_PATH="${WP_CONTENT_PATH}/plugins/${PLUGIN[0]}"

  if isPluginInstalled; then
    echo "> Plugin '${PLUGIN[0]}' already installed and will be skipped."
    continue
  fi

  WP_PLUGIN_INSTALL_ARGS="${PLUGIN[0]}"

  if [ -n "${PLUGIN[1]}" ]; then
    WP_PLUGIN_INSTALL_ARGS="${WP_PLUGIN_INSTALL_ARGS} --version=${PLUGIN[1]}"
  fi

  echo "> Installing plugin '${PLUGIN[0]}' version '${PLUGIN[1]}'"
  installPlugin "${WP_PLUGIN_INSTALL_ARGS}" &
done

echo "> Waiting for all plugins to install..."
wait

# Plugins are installed concurrently, so we need to verify if installed, separately
echo "> About to verify install of defined plugins"

FAILED_COUNT=0

for PLUGIN_EXPR in ${PLUGIN_LIST}; do
  IFS=':' read -ra PLUGIN <<<"${PLUGIN_EXPR}"

  PLUGIN_PATH="${WP_CONTENT_PATH}/plugins/${PLUGIN[0]}"

  if isPluginInstalled; then
    echo "> Plugin '${PLUGIN[0]}' installed"
    continue
  fi

  ((FAILED_COUNT=FAILED_COUNT+1))
  echo "> Warning: Plugin '${PLUGIN[0]}' failed to install"
done

echo "> Total of ${FAILED_COUNT} plugins failed to install"

if [ "${PLUGIN_STRICT_INSTALL}" = "true" ] && [ ${FAILED_COUNT} != "0" ]; then
  echo "> WORDPRESS_PLUGIN_INSTALL_STRICT is set to true. Terminating with non-zero exit code"
  exit 1
fi

exit 0