#!/usr/bin/bash
# Copyright (c) Facebook, Inc. and its affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -e

function download() {
  if hash curl 2>/dev/null; then
    curl -s -L -o "$2" "$1"
  elif hash wget 2>/dev/null; then
    wget -O "$2" "$1"
  else
    echo >&2 "No supported download tool installed. Please get either wget or curl."
    exit
  fi
}

function installsdk() {
  # We need an existing SDK with `sdkmanager`, otherwise, install it.
  command which sdkmanager &> /dev/null || getAndroidSDK

  PROXY_ARGS=""
  if [[ -n "$HTTPS_PROXY" ]]; then
    PROXY_HOST="$(echo "$HTTPS_PROXY" | cut -d : -f 1,1)"
    PROXY_PORT="$(echo "$HTTPS_PROXY" | cut -d : -f 2,2)"
    PROXY_ARGS="--proxy=http --proxy_host=$PROXY_HOST --proxy_port=$PROXY_PORT"
  fi

  echo y | "$ANDROID_HOME/tools/bin/sdkmanager" $PROXY_ARGS "$@" > /dev/null
}

function getAndroidSDK {
  TMP=/tmp/sdk$$.zip
  download 'https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip' $TMP
  mkdir -p "$ANDROID_HOME"
  unzip -qod "$ANDROID_HOME" $TMP
  rm $TMP
}

function installAndroidSDK {
  export ANDROID_HOME="$HOME/android_sdk"
  getAndroidSDK
  export PATH="$ANDROID_HOME/platform-tools:$ANDROID_HOME/tools:$ANDROID_HOME/tools/bin:$PATH"

  mkdir -p "$ANDROID_HOME/licenses/"
  echo 24333f8a63b6825ea9c5514f83c2829b004d1fee > "$ANDROID_HOME/licenses/android-sdk-license"
  echo 8933bad161af4178b1185d1a37fbf41ea5269c55 >> "$ANDROID_HOME/licenses/android-sdk-license"
}