# Copyright 2021 The Cobalt Authors. All Rights Reserved.
#
# 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.

import("//cobalt/bindings/bindings_variables.gni")
import("//cobalt/bindings/blink_variables.gni")
import("//cobalt/script/v8c/v8c_variables.gni")

# Additional files used by the idl compilation scripts.
bindings_extra_inputs = [
  "//cobalt/bindings/code_generator_cobalt.py",
  "//cobalt/bindings/expression_generator.py",
  "//cobalt/bindings/contexts.py",
  "//cobalt/bindings/idl_compiler_cobalt.py",
  "//cobalt/bindings/generate_conversion_header.py",
  "//cobalt/bindings/name_conversion.py",
  "//cobalt/bindings/overload_context.py",
]
bindings_extra_inputs += code_generator_template_files
bindings_extra_inputs += engine_bindings_scripts
bindings_extra_inputs += idl_lexer_parser_files
bindings_extra_inputs += idl_cache_files
bindings_extra_inputs += idl_compiler_files

# Template definitions.
template("idl_compile") {
  action_foreach(target_name) {
    script = "//starboard/build/run_bash.py"
    py_script = engine_idl_compiler

    public_configs = invoker.public_configs

    sources = invoker.sources

    deps = invoker.deps

    if (defined(invoker.public_deps)) {
      public_deps = invoker.public_deps
    }

    inputs = [
      invoker.interfaces_info,
      invoker.extended_attributes,
      invoker.component_info,
      py_script,
    ]
    inputs += invoker.bindings_extra_inputs

    generated_file_path =
        "$generated_source_output_dir/{{source_root_relative_dir}}"
    generated_file_name = "${generated_bindings_prefix}_{{source_name_part}}"
    outputs = [
      "$generated_file_path/$generated_file_name.h",
      "$generated_file_path/$generated_file_name.cc",
    ]

    args = [
      "python2",
      rebase_path(py_script, root_build_dir),
      "--cache-directory",
      rebase_path(invoker.cache_directory),
      "--output-directory",
      rebase_path(invoker.output_directory),
      "--interfaces-info",
      rebase_path(invoker.interfaces_info),
      "--component-info",
      rebase_path(invoker.component_info),
      "--extended-attributes",
      rebase_path(invoker.extended_attributes),
      "{{source}}",
    ]
  }
}

template("compute_global_objects") {
  action(target_name) {
    script = "//starboard/build/run_bash.py"
    py_script = "$bindings_scripts_dir/compute_global_objects.py"

    inputs = [
      py_script,
      "$bindings_scripts_dir/utilities.py",
    ]
    inputs += invoker.idl_files

    outputs = [ invoker.global_objects_file ]

    idl_files_list = "$target_gen_dir/${target_name}_idl_files_list.tmp"
    write_file(idl_files_list, rebase_path(invoker.idl_files, root_build_dir))

    args = [
      "python2",
      rebase_path(py_script, root_build_dir),
      "--idl-files-list",
      rebase_path(idl_files_list, root_build_dir),
      "--",
      rebase_path(invoker.global_objects_file, root_build_dir),
    ]
  }
}

template("compute_global_constructors_idls") {
  action(target_name) {
    script = "//starboard/build/run_bash.py"
    py_script = "$bindings_scripts_dir/generate_global_constructors.py"

    deps = invoker.deps

    inputs = [
      py_script,
      "$bindings_scripts_dir/utilities.py",
      invoker.global_objects_file,
    ]
    inputs += invoker.idl_files

    outputs = [
      invoker.global_names_idl_file,
      invoker.global_constructors_generated_header_file,
    ]

    # Write the file list to a unique temp file to avoid blowing out the
    # command line length limit.
    idl_files_list = "$target_gen_dir/${target_name}_static_idl_files_list.tmp"
    write_file(idl_files_list, rebase_path(invoker.idl_files, root_build_dir))

    args = [
      "python2",
      rebase_path(py_script, root_build_dir),
      "--idl-files-list",
      rebase_path(idl_files_list, root_build_dir),
      "--global-objects-file",
      rebase_path(invoker.global_objects_file, root_build_dir),
      "--",
      "Window",
      rebase_path(invoker.global_names_idl_file, root_build_dir),
    ]
  }
}

template("compute_interfaces_info_individual") {
  action(target_name) {
    script = "//starboard/build/run_bash.py"
    py_script = "$bindings_scripts_dir/compute_interfaces_info_individual.py"

    deps = invoker.deps

    inputs = [
      py_script,
      "$bindings_scripts_dir/utilities.py",
      invoker.extended_attributes,
      invoker.generated_idl_files,
    ]
    inputs += invoker.idl_files

    outputs = [
      invoker.interfaces_info_file,
      invoker.component_info_file,
    ]

    # Write the file list to a unique temp file to avoid blowing out the
    # command line length limit.
    idl_files_list = "$target_gen_dir/${target_name}_static_idl_files_list.tmp"
    write_file(idl_files_list, rebase_path(invoker.idl_files, root_build_dir))

    dependency_idl_files_paths =
        rebase_path(invoker.dependency_idl_files, root_build_dir)
    dependency_idl_files_list = string_join(" ", dependency_idl_files_paths)
    args = [
      "python2",
      rebase_path(py_script, root_build_dir),
      "--cache-directory",
      rebase_path(invoker.cache_directory, root_build_dir),
      "--root-directory",
      rebase_path("//", root_build_dir),
      "--idl-files-list",
      rebase_path(idl_files_list, root_build_dir),
      "--interfaces-info-file",
      rebase_path(invoker.interfaces_info_file, root_build_dir),
      "--component-info-file",
      rebase_path(invoker.component_info_file, root_build_dir),
      "--extended-attributes",
      rebase_path(invoker.extended_attributes, root_build_dir),
      "--dependency-idl-files",
      dependency_idl_files_list,
      "--",

      # Generated files must be passed at command line
      rebase_path(invoker.generated_idl_files, root_build_dir),
    ]
  }
}