#!/bin/bash

run() {
    # Run the compilation process.
    echo "This bash script pretends to be pecl, but it's not. It can only do 'pecl install <package>'"

    cache_folder="${PLATFORM_CACHE_DIR}/.pecl"
    cache_file="$cache_folder/cached_components"
    echo "Cache folder $cache_folder"
    echo "Cache file $cache_file"
    echo "Current folder $(pwd)"

    # probably exists, but do it anyway
    mkdir -p $cache_folder
    cd $cache_folder

    # Check to see if the cache file exists
    if [ ! -f ${cache_file} ];
    then
        echo "" > $cache_file
    fi

    # check if cache_contents actually matches what we want
    cache_contents=$(<"$cache_file")
    if [[ "$cache_contents" != "$@" ]]; then
        # Not the same components, so reinstall
        install_components $@
        copy_lib_to_cache $@
        echo "$@" > $cache_file
    else
        echo "Same components, nothing to be installed"
    fi
    
    copy_lib_from_cache
    write_php_ini $@
}

copy_lib_to_cache() {
    echo "Copy to cache... #files copied: "
    cp -Rvf $PLATFORM_APP_DIR/*.so $PLATFORM_CACHE_DIR/.pecl/ | wc -l
}

copy_lib_from_cache() {
    echo "Copy from cache... #files copied: "
    cp -Rvf $PLATFORM_CACHE_DIR/.pecl/* $PLATFORM_APP_DIR/ | wc -l
}

install_components() {
  echo "" > $PLATFORM_APP_DIR/php.ini
  
  components_to_install="$@"
  echo "Installing components: '$components_to_install'"
  for f in $components_to_install
  do
      if [[ "$f" != "install" ]]; then 
          echo "Installing component: '$f'"
          install_component $f
      fi
  done
}

install_component() {
  echo "Installing package $1"
  
  mkdir build-dir
  cd build-dir

  echo "Downloading tarball from pecl"
  curl -SsL https://pecl.php.net/get/$1 -o $1.tgz

  echo "Unpacking into build-dir folder"
  tar -xvf $1.tgz
  rm $1.tgz

  echo "Build $1 lib"
  mv $1* $1
  cd $1
  ls -lsa
  pwd
  echo "Run phpize"
  phpize
  ./configure
  make

  echo "Copy modules/$1.so to $PLATFORM_APP_DIR/$1.so"
  cp modules/$1.so $PLATFORM_APP_DIR/$1.so

  echo "Cleaning up build folder..."
  cd ../..
  rm -Rf build-dir

}

write_php_ini() {
  echo "Writing php.ini."
  echo "" > $PLATFORM_APP_DIR/php.ini
  
  components_to_install="$@"
  echo "Installing components: '$components_to_install'"
  for f in $components_to_install
  do
      if [[ "$f" != "install" ]]; then 
          echo "extension=$PLATFORM_APP_DIR/$f.so" >> $PLATFORM_APP_DIR/php.ini
      fi
  done
}
components_to_install=$(echo "$@" | cut -d ' ' -f 1 --complement)
echo "Installing: $components_to_install"
run "$components_to_install"
echo "Components succesfully installed: $components_to_install"