#!/bin/bash
# Copyright 2018 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

### attach to a running flutter module to enable hot reload and debugging

## usage: fx flutter-attach //topaz/examples/hello_world:hello_world
##
## This command requires Topaz in order to run.
##
## Arguments:
##   -v|--verbose Enable verbose logging.
##   -h|--help    Print out this message.

DEVSHELL_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
source "${DEVSHELL_DIR}"/lib/vars.sh || exit $?
fx-config-read

ARGS=()

NAME="$(get-device-name)"
if [[ -n "$name" ]]; then
  ARGS+=("--device", "${name}")
fi

for var in "$@"
do
  case "$var" in
    -h|--help)
      fx-command-help
      exit 0
    ;;
    -v|--verbose)
      ARGS+=("--verbose")
    ;;
    *)
      TARGET="$var"
    ;;
  esac
done

case "$(uname -s)" in
    Linux)
        PREBUILT_DART="${DEVSHELL_DIR}/../../topaz/tools/prebuilt-dart-sdk/linux-x64/bin/dart"
        ;;
    Darwin)
        PREBUILT_DART="${DEVSHELL_DIR}/../../topaz/tools/prebuilt-dart-sdk/mac-x64/bin/dart"
        ;;
esac

if [[ -z "$PREBUILT_DART" ]]; then
  >&2 echo "PRREBUILT DART binary not supported on current platform"
  exit 1
fi

FUCHSIA_ATTACH_BIN="${FUCHSIA_BUILD_DIR}/host_x64/dart-tools/fuchsia_attach"

# The flutter tool expects the working directory is the fuchsia root.
cd "${FUCHSIA_DIR}"

"${FUCHSIA_ATTACH_BIN}" \
  "--dart-sdk=${PREBUILT_DART}" \
  "--build-dir=${FUCHSIA_BUILD_DIR}"\
  "--target=${TARGET}" \
  "${ARGS[@]}"