#!/usr/bin/env bash

set -e
[ -n "$PHPENV_DEBUG" ] && set -x

if [ -z "$PHPENV_ROOT" ]; then
  PHPENV_ROOT="${HOME}/.phpenv"
fi

shell="$1"
if [ -z "$shell" ]; then
  shell="$(ps c -p "$PPID" -o 'ucomm=' 2>/dev/null || true)"
  shell="${shell##-}"
  shell="${shell%% *}"
  shell="$(basename "${shell:-$SHELL}")"
fi

indent_output() {
  while read data; do
    echo -e " \033[1;32m|\033[0m  $data"
  done
}

colorize_output() {
  while read data; do
    echo -e "\033[1;32m$data\033[0m"
  done
}

checkout() {
  if [ ! -d "$2" ] ;then
    git clone "$1" "$2"
  else
    git pull --no-rebase --ff
  fi
}

test_write_permission_in_install_folder() {
  local cmd_output=""
  local file_test="$(dirname ${PHPENV_ROOT})/1"
  set +e
  cmd_output=$(touch $file_test 3>&1 2>&3 )
  set -e

  if [[ $cmd_output =~ "Permission denied" ]]; then
    echo "ERROR" | colorize_output
    echo "Permission denied when trying to write in ${PHPENV_ROOT}." | indent_output
    echo "Adjust your \$PHPENV_ROOT or try to use sudo." | indent_output
    exit 1
  else
    rm -rf $file_test
  fi
}


install_phpenv() {
  local sh="https://raw.githubusercontent.com/CHH/phpenv/master/bin/phpenv-install.sh"

  echo "Installing phpenv" | colorize_output

  if [ -d "$PHPENV_ROOT" ]; then
    curl -L --silent ${sh} | UPDATE=yes PHPENV_ROOT=${PHPENV_ROOT} bash &>/dev/null
  else
    curl -L --silent ${sh} | PHPENV_ROOT=${PHPENV_ROOT} bash &>/dev/null
  fi

  echo "Done." | indent_output
  echo
}

install_plugin() {
  local vendor=${1%/*}
  local plugin=${1#*/}

  echo "Installing $vendor/$plugin" | colorize_output
  checkout "https://github.com/${vendor}/${plugin}.git" "${PHPENV_ROOT}/plugins/${plugin}" &>/dev/null
  echo "Done." | indent_output
  echo
}

profile_by_shell() {
  local profile
  case "$shell" in
  bash )
    profile="~/.bash_profile"
    ;;
  zsh )
    profile="~/.zshrc"
    ;;
  ksh )
    profile="~/.profile"
    ;;
  fish )
    profile="~/.config/fish/config.fish"
    ;;
  * )
    profile="your profile"
    ;;
  esac
  echo $profile
}

test_deps() {
  if ! command -v git 1>/dev/null 2>&1; then
    echo "phpenv: Git is not installed, can't continue." >&2 | indent_output
    exit 1
  fi

  if ! command -v curl 1>/dev/null 2>&1; then
    echo "phpenv: Curl is not installed, can't continue." >&2 | indent_output
    exit 1
  fi
}

test_if_phpenv_is_in_path() {
  if ! command -v phpenv 1>/dev/null; then

    { echo "WARNING" | colorize_output
      echo "# Seems you still have not added 'phpenv' to the load path." | indent_output
      echo | indent_output
    } >&2

    { echo "# Load phpenv automatically by adding" | indent_output
      echo "# the following to $(profile_by_shell):" | indent_output
      echo
      case "$shell" in
      fish )
        echo "set -x PHPENV_ROOT \"${PHPENV_ROOT}\""
        echo "if test -d \"$PHPENV_ROOT\""
        echo "  set -x PATH \"$PHPENV_ROOT/bin\" \$PATH"
        echo '  status --is-interactive; and . (phpenv init -|psub)'
        echo "end"
        ;;
      * )
        echo "export PHPENV_ROOT=\"${PHPENV_ROOT}\""
        echo "if [ -d \"\${PHPENV_ROOT}\" ]; then"
        echo "  export PATH=\"\${PHPENV_ROOT}/bin:\${PATH}\""
        echo "  eval \"\$(phpenv init -)\""
        echo "fi"
        ;;
      esac
      echo
    } >&2

  else

    { echo "Alright!" | colorize_output
      echo "Execute:" | indent_output
      echo "\`phpenv commands\`       to see all you can do" | indent_output
      echo "\`phpenv help <command>\` for information on a specific command" | indent_output
      echo
    } >&2

  fi
}

echo "INFO" | colorize_output
echo "\$PHPENV_ROOT is defined as ${PHPENV_ROOT}" | indent_output
echo
test_write_permission_in_install_folder
test_deps
install_phpenv
install_plugin "php-build/php-build"
install_plugin "rogeriopradoj/phpenv-update"
install_plugin "rogeriopradoj/phpenv-common-deps-install"
test_if_phpenv_is_in_path