# Function to log result of a operation.
add_log() {
  mark=$1
  subject=$2
  message=$3
  if [ "$mark" = "$tick" ]; then
    printf "\033[32;1m%s \033[0m\033[34;1m%s \033[0m\033[90;1m%s\033[0m\n" "$mark" "$subject" "$message"
  else
    printf "\033[31;1m%s \033[0m\033[34;1m%s \033[0m\033[90;1m%s\033[0m\n" "$mark" "$subject" "$message"
  fi
}

# Function to test if extension is loaded.
check_extension() {
  extension=$1
  php -m | grep -i -q -w "$extension"
}

# Function to get the tag for a php version.
get_tag() {
  master_version='8.0'
  tag='master'
  if [ ! "$version" = "$master_version" ]; then
      tag="php-$(php -v | head -n 1 | cut -f 2 -d ' ' | cut -f 1 -d '-')"
  fi
  echo "$tag"
}

# Function to install instantclient and SDK.
install_client() {
  sudo mkdir -p -m 777 "$oracle_home"
  if [ ! -e "$oracle_client" ]; then
    for package in basiclite sdk; do
      if [ "$os" = 'Linux' ]; then
        libs='/usr/lib/'
        os_name='linux'
        arch='linuxx64'
        lib_ext='so'
      elif [ "$os" = 'Darwin' ]; then
        libs='/usr/local/lib/'
        os_name='mac'
        arch='macos'
        lib_ext='dylib'
      fi
      curl -o "/opt/oracle/$package.zip" -sSL "https://download.oracle.com/otn_software/$os_name/instantclient/instantclient-$package-$arch.zip"
      unzip "/opt/oracle/$package.zip" -d "$oracle_home"
    done
    sudo ln -sf /opt/oracle/instantclient*/*.$lib_ext* $libs
    sudo ln -sf /opt/oracle/instantclient* "$oracle_client"
  fi
}

# Function to get PHP source.
get_php() {
  [ ! -d "/opt/oracle/php-src-$tag" ] && curl -sSL "https://github.com/php/php-src/archive/$tag.tar.gz" | tar xzf - -C "$oracle_home/"
}

# Function to get phpize location on darwin.
get_phpize() {
  if [[ "$version" =~ 5.[3-5] ]]; then
      echo '/opt/local/bin/phpize'
  else
      echo "/usr/local/bin/$(readlink /usr/local/bin/phpize)"
  fi
}

# Function to patch phpize to link to php headers on darwin.
patch_phpize() {
  if [ "$os" = "Darwin" ]; then
    sudo cp "$phpize_orig" "$phpize_orig.bck"
    sudo sed -i '' 's~includedir=.*~includedir="$(xcrun --show-sdk-path)/usr/include/php"~g' "$phpize_orig"
  fi
}

# Function to restore phpize.
restore_phpize() {
  if [ "$os" = "Darwin" ]; then
    sudo mv "$phpize_orig.bck" "$phpize_orig" || true
  fi
}

# Function to patch pdo_oci.
patch_pdo_oci_config() {
  curl -sSLO https://raw.githubusercontent.com/php/php-src/master/ext/pdo_oci/config.m4
  sudo sed -i '' "/PHP_CHECK_PDO_INCLUDES/d" config.m4 || sudo sed -i "/PHP_CHECK_PDO_INCLUDES/d" config.m4
}

# Function to install the dependencies.
install_dependencies() {
  if [ "$os" = 'Linux' ]; then
    if [ "$runner" = "self-hosted" ] || [ "$RUNNER" = "self-hosted" ]; then
      sudo DEBIAN_FRONTEND=noninteractive apt-fast install -y autoconf automake libaio-dev gcc g++ php"$version"-dev
    else
      sudo DEBIAN_FRONTEND=noninteractive apt-fast install -y php"$version"-dev
    fi
    sudo update-alternatives --set php-config /usr/bin/php-config"$version"
    sudo update-alternatives --set phpize /usr/bin/phpize"$version"
  fi
}

# Function to install the extension.
install_extension() {
  if ! [ -e "$ext_dir/$ext.so" ]; then
    (
      phpize_orig=$(get_phpize)
      tag=$(get_tag)
      get_php
      patch_phpize
      cd "/opt/oracle/php-src-$tag/ext/$ext" || exit 1
      [ "$ext" = "pdo_oci" ] && patch_pdo_oci_config
      sudo phpize && ./configure --with-php-config="$(command -v php-config)" --with-"${ext/_/-}"=instantclient,"$oracle_client"
      sudo make -j"$(nproc)"
      sudo cp ./modules/* "$ext_dir/"
      restore_phpize
    )
  fi
  echo "extension=$ext.so" | sudo tee "$scan_dir/99-$ext.ini"
}

ext=$1
version=$2
tick='✓'
cross='✗'
oracle_home='/opt/oracle'
oracle_client=$oracle_home/instantclient
runner="${runner:-github}" && RUNNER="${RUNNER:-github}"
os=$(uname -s)
scan_dir=$(php --ini | grep additional | sed -e "s|.*: s*||")
ext_dir=$(php -i | grep "extension_dir => /" | sed -e "s|.*=> s*||")
install_client >/dev/null 2>&1
install_dependencies >/dev/null 2>&1
install_extension >/dev/null 2>&1
(check_extension "$ext" && add_log "$tick" "$ext" "Installed and enabled") || add_log "$cross" "$ext" "Could not install $ext"