# Copyright (c) 2021 Huawei Device Co., Ltd.
# 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.

if (!defined(ark_standalone_build)) {
  ark_standalone_build = false
}

if (ark_standalone_build) {
  ark_root = "//"
  ark_third_party_root = "//ark-third-party"
  with_ecmascript = true
  use_pbqp = true
} else {
  ark_root = "//ark/runtime_core"
  ark_third_party_root = "//third_party"
  with_ecmascript = false
  use_pbqp = false
}

ark_enable_global_register_variables = true
enable_bytecode_optimizer = false

if (ark_standalone_build) {
  sdk_libc_secshared_dep = "$ark_third_party_root/securec:libc_secshared"
  sdk_libc_secshared_config =
      "$ark_third_party_root/securec:libsec_public_config"

  if (is_mingw || is_mac || is_linux) {
    sdk_libc_secshared_dep = "$ark_third_party_root/securec:libc_secstatic"
  }
} else {
  sdk_libc_secshared_dep = "//utils/native/base:utilsecurec_shared"
  sdk_libc_secshared_config = "//utils/native/base:utils_config"

  if (is_mingw || is_mac || is_linux) {
    sdk_libc_secshared_dep = "//utils/native/base:utilsecurec"
  }
}

# Generate file for a template and YAML data provided.
#
# Mandatory arguments:
# data_file -- YAML data full name
# template_file -- template full name
# output_file -- output file full name
# requires -- a list of scripts that provide data-querying API for templates
# extra_dependencies -- a list of files that should be considered as dependencies, must be lable
template("ark_gen_file") {
  assert(defined(invoker.data_file), "data_file is required!")
  assert(defined(invoker.template_file), "template_file is required!")
  assert(defined(invoker.output_file), "output_file is required!")

  requires = ""
  if (defined(invoker.requires)) {
    requires = string_join(",", rebase_path(invoker.requires, root_build_dir))
  }

  extra_dependencies = []
  if (defined(invoker.extra_dependencies)) {
    extra_dependencies += invoker.extra_dependencies
  }

  action("$target_name") {
    script = "$ark_root/isa/gen.rb"

    # rerun action when data file or template file update
    inputs = [
      invoker.template_file,
      invoker.data_file,
    ]
    outputs = [ invoker.output_file ]
    args = [
      "--template",
      rebase_path(invoker.template_file, root_build_dir),
      "--data",
      rebase_path(invoker.data_file, root_build_dir),
      "--require",
      requires,
      "--output",
      rebase_path(outputs[0]),
    ]

    deps = extra_dependencies
  }
}

# Generate files based on templates and YAML data provided.
# Adds targets for every template. Also adds a target for the whole function invocation
# with name ${data_name}_gen_${PROJECT_NAME} for ease of declaring dependencies on generated files.
#
# Mandatory arguments:
# * data -- data source, YAML file
# * template_files -- a list of templates to generate files
# * requires -- a list of Ruby scripts that provide data-querying API for templates
#
# Optional arguments:
# * sources -- a directory with templates, default is ${PROJECT_SOURCE_DIR}/templates
# * destination -- a directory for output files, default is ${PANDA_BINARY_ROOT}
# * extra_dependencies -- a list of files that should be considered as dependencies
template("ark_gen") {
  assert(defined(invoker.data), "data were not passed to ark_gen")
  assert(defined(invoker.template_files),
         "template_files were not passed to ark_gen")

  dir = ""
  if (defined(invoker.sources)) {
    dir = invoker.sources
  } else {
    dir = "templates"
  }

  destination = ""
  if (defined(invoker.destination)) {
    destination = invoker.destination
  } else {
    destination = target_out_dir
  }

  input_requires = ""
  if (defined(invoker.requires)) {
    input_requires = invoker.requires
  }

  foreach(t, invoker.template_files) {
    name = string_replace(t, ".erb", "")
    output = "${destination}/${name}"
    name = string_replace(name, ".", "_")
    name = string_replace(name, "/", "_")
    target = "${target_name}_${name}"

    ark_gen_file(target) {
      data_file = invoker.data
      template_file = "${dir}/${t}"
      output_file = output
      requires = input_requires
      extra_dependencies = []
      if (defined(invoker.extra_dependencies)) {
        extra_dependencies += invoker.extra_dependencies
      }
    }
  }
}

# Calls `ark_gen` for ISA YAML.
# Adds targets for every template. Also adds a target for the whole function invocation
# with name isa_gen_${PROJECT_NAME} for ease of declaring dependencies on generated files.
#
# Mandatory arguments:
# * template_files -- a list of templates to generate files
#
# Optional arguments:
# * sources -- a directory with templates, default is ${PROJECT_SOURCE_DIR}/templates
# * destination -- a directory for output files, default is ${target_out_dir}
# * requires -- if defined, will require additional Ruby files for template generation, must be list
# * extra_dependencies -- a list of files that should be considered as dependencies lable, must be list, not used
template("ark_isa_gen") {
  isa_data = "$root_gen_dir/isa/isa.yaml"
  isa_requires = [ "$ark_root/isa/isapi.rb" ]
  if (defined(invoker.requires)) {
    isa_requires += invoker.requires
  }

  dependencies = [ "$ark_root/isa:isa_combine" ]
  if (defined(invoker.extra_dependencies)) {
    dependencies += invoker.extra_dependencies
  }

  ark_gen("$target_name") {
    data = isa_data
    template_files = invoker.template_files
    sources = invoker.sources
    destination = invoker.destination
    requires = isa_requires
    extra_dependencies = dependencies
  }
}