// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "flutter/shell/platform/embedder/platform_view_embedder.h"
#include "flutter/shell/gpu/gpu_rasterizer.h"

namespace shell {

PlatformViewEmbedder::PlatformViewEmbedder(DispatchTable dispatch_table)
    : PlatformView(std::make_unique<GPURasterizer>(nullptr)),
      dispatch_table_(dispatch_table) {}

PlatformViewEmbedder::~PlatformViewEmbedder() {
  NotifyDestroyed();
}

bool PlatformViewEmbedder::GLContextMakeCurrent() {
  return dispatch_table_.gl_make_current_callback();
}

bool PlatformViewEmbedder::GLContextClearCurrent() {
  return dispatch_table_.gl_clear_current_callback();
}

bool PlatformViewEmbedder::GLContextPresent() {
  return dispatch_table_.gl_present_callback();
}

intptr_t PlatformViewEmbedder::GLContextFBO() const {
  return dispatch_table_.gl_fbo_callback();
}

void PlatformViewEmbedder::Attach() {
  CreateEngine();
  NotifyCreated(std::make_unique<shell::GPUSurfaceGL>(this));

  if (dispatch_table_.gl_make_resource_current_callback != nullptr) {
    SetupResourceContextOnIOThread();
  }
}

bool PlatformViewEmbedder::ResourceContextMakeCurrent() {
  if (dispatch_table_.gl_make_resource_current_callback == nullptr) {
    return false;
  }
  return dispatch_table_.gl_make_resource_current_callback();
}

void PlatformViewEmbedder::RunFromSource(const std::string& assets_directory,
                                         const std::string& main,
                                         const std::string& packages) {
  FXL_LOG(INFO) << "Hot reloading is unsupported on this platform.";
}

void PlatformViewEmbedder::SetAssetBundlePath(
    const std::string& assets_directory) {
  FXL_LOG(INFO) << "Set asset bundle path is unsupported on this platform.";
}

void PlatformViewEmbedder::HandlePlatformMessage(
    fxl::RefPtr<blink::PlatformMessage> message) {
  if (!message) {
    return;
  }

  if (!message->response()) {
    return;
  }

  if (dispatch_table_.platform_message_response_callback == nullptr) {
    message->response()->CompleteEmpty();
    return;
  }

  dispatch_table_.platform_message_response_callback(std::move(message));
}

}  // namespace shell