#!/bin/bash

set -x

# get configuration
source app-config.sh


# in case needed download and install `sdkmanager`
type sdkmanager 2>/dev/null || (
  BUILD_TOOLS="$(realpath -m "$BUILD_TOOLS_LATEST/..")"
  mkdir -p "$BUILD_TOOLS"
  cd "$BUILD_TOOLS"
  for LATESTTOOLS in \
    "$(curl 'https://developer.android.com/studio#command-line-tools-only' | 
      grep -e 'https://dl.google.com/android/repository/commandlinetools-linux-.*_latest.zip' | cut -f2 -d'"')" \
    'https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip'
  do 
    echo "testing to get '$LATESTTOOLS'"
    echo test "${LATESTTOOLS:0:22}" = "https://dl.google.com/" -a "${LATESTTOOLS:(-11)}" = "_latest.zip" 
    test "${LATESTTOOLS:0:22}" = "https://dl.google.com/" -a "${LATESTTOOLS:(-11)}" = "_latest.zip" || {
      echo "unsure of URL $LATESTTOOLS correct, skipping it..." >&2
      continue; 
    }
    wget -O cmdline-tools.zip "$LATESTTOOLS" 
    unzip cmdline-tools.zip && break || { 
      echo "error downloading working cmdline-tools.zip"
      exit 1
    }
  done
  ls
  ls cmdline-tools
  rm cmdline-tools.zip
  mv -v cmdline-tools "$BUILD_TOOLS_LATEST" || true
)

test -f android-sdk/.installed.buildtools.version.$APP_VERSION_SDK_TARGET || {
  EXACTVERSION_BUILDTOOLS="$(
    sdkmanager  --list 2>/dev/null | 
      sed 's/^ *//' | 
        grep -e 'build-tools;'"$APP_VERSION_SDK_TARGET"'\.[0-9]*\.[0-9]*\ ' | 
          cut -f1 -d' ' |
            sort |
              tail -n 1
  )"
  test -z "$EXACTVERSION_BUILDTOOLS" && {
    echo "ERROR cannot get '$EXACTVERSION_BUILDTOOLS'" >&2
    echo "dropping to shell..." >&2
    exec bash
  }
  sdkmanager --list_installed | grep -q "$EXACTVERSION_BUILDTOOLS" || {
    sdkmanager --install "$EXACTVERSION_BUILDTOOLS"
  }
  echo "$EXACTVERSION_BUILDTOOLS" > android-sdk/.installed.buildtools.version.$APP_VERSION_SDK_TARGET 
  ln -rvsf android-sdk/.installed.buildtools.version.{$APP_VERSION_SDK_TARGET,current}
}

test -f android-sdk/.installed.platforms.version.$APP_VERSION_SDK_TARGET || {
  EXACTVERSION_PLATFORM="$(
    sdkmanager  --list 2>/dev/null | 
      sed 's/^ *//' | 
        grep -e 'platforms;android-'"$APP_VERSION_SDK_TARGET"'\ ' | 
          cut -f1 -d' ' |
            sort |
              tail -n 1
  )"
  test -z "$EXACTVERSION_PLATFORM" && {
    echo "ERROR cannot get '$EXACTVERSION_PLATFORM'" >&2
    echo "dropping to shell..." >&2
    exec bash
  }
  sdkmanager --list_installed | grep -q "$EXACTVERSION_PLATFORM" || {
    sdkmanager --install "$EXACTVERSION_PLATFORM"
  }
  echo "$EXACTVERSION_PLATFORM" > android-sdk/.installed.platforms.version.$APP_VERSION_SDK_TARGET 
  ln -rvsf android-sdk/.installed.platforms.version.{$APP_VERSION_SDK_TARGET,current}
}

touch android-sdk/installed