#!/bin/sh

if [ ! -e ssg/main.php ]; then
  if ! git --version >>/dev/null; then
    echo "error: dummy-ssg submodule is uninitialized, and git not installed"
    echo "Try to install git, then run this script again"
    exit 1
  fi
  if ! git submodule update --init ssg; then
    if [ ! -e ssg/main.php ]; then
      echo "error: failed to init submodule dummy-ssg"
      echo "Check your network connection and the error message above"
      exit 1
    fi
  fi
fi

if ! php --version >>/dev/null; then
  echo "error: Please install PHP, prefer version 8+"
  exit 1
fi
if ! echo "<?php mb_strlen(\"\") ?>" | php 2>>/dev/null; then
  echo "error: php_mbstring is not installed, dummy-ssg will not work"
  exit 1
fi
if ! echo "<?php new DOMDocument ?>" | php 2>>/dev/null; then
  echo "warning: php-xml is not installed, dummy-ssg will lack XML tag support in markdown"
fi

exec php ssg/main.php --template tpl --input src --output out --clean