#!/usr/bin/env sh

# set error-quit, verbose, non-variable-quit
set -eu
# see what system used
__OS__=$(uname -s)
# see what arch used
__ARCH__=$(uname -m)
# format arch name
case $__ARCH__ in
arm64 | aarch64) __ARCH__=aarch64 ;;
x86_64|x64) __ARCH__=x86_64 ;;
*) ;;
esac

# format uname
case $__OS__ in
Darwin) __OS_FIXED__=macos ;;
Linux) __OS_FIXED__=linux ;;
*) echo "Current OS is not supported" && exit 1 ;;
esac

# set project dir
__DIR__=$(cd "$(dirname "$0")" && pwd)
__PROJECT__=$(cd "${__DIR__}"/../ && pwd)

# set download dir
__PHP_RUNTIME_URL__="https://dl.static-php.dev/static-php-cli/bulk/php-8.2.13-cli-${__OS_FIXED__}-${__ARCH__}.tar.gz"
__COMPOSER_URL__="https://getcomposer.org/download/latest-stable/composer.phar"

# use china mirror
# bash bin/setup-runtime --mirror china
mirror=''
while [ $# -gt 0 ]; do
  case "$1" in
  --mirror)
    mirror="$2"
    ;;
  --*)
    echo "Illegal option $1"
    ;;
  esac
  shift $(($# > 0 ? 1 : 0))
done

case "$mirror" in
china)
  __PHP_RUNTIME_URL__="https://dl.static-php.dev/static-php-cli/bulk/php-8.2.13-cli-${__OS_FIXED__}-${__ARCH__}.tar.gz"
  __COMPOSER_URL__="https://mirrors.tencent.com/composer/composer.phar"
  ;;

esac

if ! command -v curl > /dev/null && command -v apk > /dev/null; then
  apk add --no-cache curl
fi

test -d "${__PROJECT__}"/downloads || mkdir "${__PROJECT__}"/downloads
# download static php binary
test -f "${__PROJECT__}"/downloads/runtime.tar.gz || { echo "Downloading $__PHP_RUNTIME_URL__ ..." && curl -#fSL -o "${__PROJECT__}"/downloads/runtime.tar.gz "$__PHP_RUNTIME_URL__" ; }
test -f "${__DIR__}"/php || { tar -xf "${__PROJECT__}"/downloads/runtime.tar.gz -C "${__DIR__}"/ ; }
chmod +x "${__DIR__}"/php
# download composer
test -f "${__DIR__}"/composer || curl -#fSL -o "${__DIR__}"/composer "$__COMPOSER_URL__"
chmod +x "${__DIR__}"/composer
# sanity check for php and composer
"${__DIR__}"/php -v >/dev/null || { echo "Failed to run php" && exit 1; }
"${__DIR__}"/php "${__DIR__}"/composer --version >/dev/null || { echo "Failed to run composer" && exit 1; }

echo "Setup runtime OK!"
echo "runtime bin path needs to add manually by command below:"
echo ""
echo "    export PATH=\"${__DIR__}:\$PATH\""
echo ""