#
# Copyright (C) 2015 The Android Open Source Project
#
# 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.
#

"""Product Templates

   This file contains the simplest possible templates for generating
   scaffolding product files.
"""

import string

ANDROIDPRODUCTS_MK = string.Template("""\
# Automatically generated by brunch.
# When editing, always keep the primary product makefile first.
PRODUCT_MAKEFILES := $$(LOCAL_DIR)/${product_name}.mk
""")

PRODUCT_MK = string.Template("""\
# Automatically generated by brunch.
include device/generic/brillo/brillo_base.mk
$$(call set-product-defaults)
PRODUCT_BRAND := Brillo
PRODUCT_MANUFACTURER := ${product_manufacturer}
PRODUCT_DEVICE := ${product_device}
PRODUCT_PACKAGES += \\

""")

HELLO_WORLD_MK = string.Template("""\
# Automatically generated by brunch.
include device/generic/brillo/brillo_base.mk
$$(call set-product-defaults)
PRODUCT_BRAND := Brillo
PRODUCT_MANUFACTURER := ${product_manufacturer}
PRODUCT_DEVICE := ${product_device}
PRODUCT_PACKAGES += \\
       helloservice.${product_name} \\

""")

SRC_HELLOSERVICE_ANDROID_MK = string.Template("""\
LOCAL_PATH := $$(call my-dir)
include $$(CLEAR_VARS)
LOCAL_MODULE := helloservice.${product_name}
LOCAL_SRC_FILES := helloservice.cpp
LOCAL_SHARED_LIBRARIES := libc libbase
LOCAL_CFLAGS := -Werror
include $$(BUILD_EXECUTABLE)
""")

SRC_HELLOSERVICE_HELLOSERVICE_CPP = string.Template("""\
#include <unistd.h>
#include <base/logging.h>
int main(int argc __unused, char **argv __unused) {
  LOG(INFO) << "starting";
  while (1) {
    LOG(INFO) << "loop iteration";
    sleep(5);
  }
  LOG(INFO) << "exiting";
  return 0;
}
""")


BDK_BANNER = string.Template("""\
bdk_banner() {
  echo Environment configured for product \\""${product_name}"\\".
  echo Using Brillo Development Kit v."${bdk_version}" from "${bdk_path}"
  echo
  echo "${bdk_warning}"
  echo
  echo Available commands:
  echo   brunch, m, mm, adb, fastboot, provision
}
bdk_banner

""")


ENV_EXPORTS = string.Template("""\
export BDK_PATH="${bdk_path}"
# Put the brunch in your path.
export PATH=${brunch_path}:$$PATH
# For adb, fastboot.
export ANDROID_PRODUCT_OUT="${target_out}"
export ANDROID_BUILD_TOP="${product_path}/out/.bdk"
""")

ENV_ALIASES = string.Template("""\

m() {
  brunch product build -p=${product_path} -- "$$@"
}

mm() {
  brunch product build -s -p=${product_path} -- "$$@"
}

adb() {
  brunch product tool -p=${product_path} adb "$$@"
}

fastboot() {
  brunch product tool -p=${product_path} fastboot "$$@"
}

provision() {
  brunch product provision -p=${product_path} "$$@"
}

""")

# Inside this template, brunch is re-called to export an updated
# environment.  To do so, the output is packed into an fd and then
# source'd by the shell.  The approach is messier than using <()
# in order to avoid a specific bashism and keep this part dash clean.
# That is yet to be a requirement across all the scripts, though.
ENVSETUP = string.Template("""\
_envsetup_load() {
  # Allow the environment to override the BDK path.
  local bdk="$${BDK_PATH:-${bdk_path}}"
  if ! test -x "$${bdk}/tools/bdk/brunch/brunch"; then
    echo "The BDK cannot be found." 1>&2
    echo "Please supply its path in the BDK_PATH environment variable or " 1>&2
    echo "run 'brunch product reconfig'" 1>&2
    return 1
  fi

  # Make sure we're in the root of a product.
  # If the user explicitly exported a PRODUCT_PATH, then fail if it is wrong.
  if test -n "$${PRODUCT_PATH}" && \
     ! test -e "$${PRODUCT_PATH}/.brunch_product.db"; then
    echo "Cannot find a product at PRODUCT_PATH: $${PRODUCT_PATH}" 1>&2
    return 1
  fi
  # Otherwise, use the default or check the cwd.
  local product_path="$${PRODUCT_PATH:-${product_path}}"
  if ! test -e "$${product_path}/.brunch_product.db"; then
    echo "Checking current directory for a valid product . . ." 1>&2
    product_path=$$PWD
    if ! test -e "$${product_path}/.brunch_product.db"; then
      echo "Please source envsetup.sh from the product directory " 1>&2
      echo "or set a valid PRODUCT_PATH in the environment." 1>&2
      return 1
    fi
  fi

  # Find a free file descriptor and use it rather than a tempfile.
  fd=$$((`ls /dev/fd/ | sort -n | tail -1` + 1))
  eval 'exec '$$fd'<<EOFEOF
  $$($${bdk}/tools/bdk/brunch/brunch product envsetup \\
    --product_path="$${product_path}")
EOFEOF'
  . /dev/fd/$$fd
  eval "exec $$fd<&-"
}
_envsetup_load
""")