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# Copyright 2019 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

# Build Liblouis library
#
# This target is used to build and assemble Liblouis braille translator.
#
# Variables:
#   dest_dir: destination path for all translator files
#   deps: private linked dependencies
#   testonly: a target must only be used for testing
template("liblouis_library") {
  assert(defined(invoker.dest_dir), "Must define dest_dir")
  forward_variables_from(invoker, [ "dest_dir" ])

  tables_json_target_name = "${target_name}_tables_json"
  wasm_target_name = "${target_name}_wasm"
  final_target_name = target_name

  copy(tables_json_target_name) {
    forward_variables_from(invoker, [ "testonly" ])
    visibility = [ ":$final_target_name" ]
    sources = [ "//third_party/liblouis/tables.json" ]
    outputs = [ "$dest_dir/{{source_file_part}}" ]
  }

  copy(wasm_target_name) {
    forward_variables_from(invoker, [ "testonly" ])
    visibility = [ ":$final_target_name" ]
    sources = [
      "//third_party/liblouis/wasm/liblouis_wasm.data",
      "//third_party/liblouis/wasm/liblouis_wasm.js",
      "//third_party/liblouis/wasm/liblouis_wasm.wasm",
      "//third_party/liblouis/wasm/liblouis_wrapper.js",
    ]
    outputs = [ "$dest_dir/{{source_file_part}}" ]
  }

  group(target_name) {
    forward_variables_from(invoker, [ "testonly" ])
    deps = [
      ":$tables_json_target_name",
      ":$wasm_target_name",
    ]
    if (defined(invoker.deps)) {
      deps += invoker.deps
    }
  }
}