#!/bin/bash
# Expected arguments:
# $1 = out_dir
# $2 = dist_dir
# $3 = build_number
# $4 = number of --parallel-thread (optional)

set -e #Exit immediately if a command exits with a non-zero status.

PROG_DIR=$(dirname "$0")
CURRENT_OS=$(uname | tr A-Z a-z)

function die() {
  echo "$*" > /dev/stderr
  echo "Usage: $0 <target> <out_dir> <dest_dir> <build_number> [num_threads]" > /dev/stderr
  exit 1
}

while [[ -n "$1" ]]; do
  if [[ -z "$TARGET" ]]; then
    TARGET="$1"
  elif [[ -z "$OUT_DIR" ]]; then
    OUT_DIR="$1"
  elif [[ -z "$DIST_DIR" ]]; then
    DIST_DIR="$1"
  elif [[ -z "$BNUM" ]]; then
    BNUM="$1"
  elif [[ -z "$NUM_THREADS" ]]; then
    NUM_THREADS="$1"
  else
    die "[$0] Unknown parameter: $1"
  fi
  shift
done

if [[ -z "$OUT_DIR"  ]]; then die "## Error: Missing out folder"; fi
if [[ -z "$DIST_DIR" ]]; then die "## Error: Missing destination folder"; fi
if [[ -z "$BNUM"     ]]; then die "## Error: Missing build number"; fi

if [[ "$OUT_DIR" != /* ]]
then
    pushd "$PROG_DIR"/../..
    OUT_DIR="$PWD/$OUT_DIR"
    echo here
    popd
fi

cd "$PROG_DIR"/../..

case "$TARGET" in
support_test_all)
    TASKS=" \
    --project-prop buildFromServer=true \
    --project-prop buildEspresso=true \
    --project-prop buildRunner=true \
    --project-prop buildUiAutomator=true \
    --project-prop buildJankTestHelper=true \
    createArchive"
    ;;
support_uiautomator)
    TASKS=" \
    --project-prop buildFromServer=true \
    --project-prop buildUiAutomator=true \
    createArchive"
    ;;
support_espresso)
    TASKS=" \
    --project-prop buildFromServer=true \
    --project-prop buildEspresso=true \
    createArchive"
    ;;
support_test_lib)
    TASKS=" \
    --project-prop buildFromServer=true \
    --project-prop buildRunner=true \
    createArchive"
    ;;
support_janktesthelper)
    TASKS=" \
    --project-prop buildFromServer=true \
    --project-prop buildJankTestHelper=true \
    createArchive"
    ;;
*)
    echo "Unknown build target!"
    exit 1
    ;;
esac

if [[ -z "$NUM_THREADS" ]]
then
    ( set -x ; OUT_DIR="$OUT_DIR" DIST_DIR="$DIST_DIR" ./gradlew --parallel --stacktrace $TASKS )
else
    ( set -x ; OUT_DIR="$OUT_DIR" DIST_DIR="$DIST_DIR" ./gradlew --parallel-threads $NUM_THREADS --stacktrace $TASKS )
fi