// Copyright 2018 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 "chromecast/browser/cast_web_view_factory.h"

#include "chromecast/browser/cast_web_view_default.h"
#include "chromecast/chromecast_buildflags.h"

#if BUILDFLAG(ENABLE_CHROMECAST_EXTENSIONS)
#include "chromecast/browser/cast_web_view_extension.h"
#endif

namespace chromecast {

CastWebViewFactory::CastWebViewFactory(content::BrowserContext* browser_context)
    : browser_context_(browser_context) {
  DCHECK(browser_context_);
}

CastWebViewFactory::~CastWebViewFactory() = default;

void CastWebViewFactory::OnPageDestroyed(CastWebView* web_view) {
  for (auto& observer : observer_list_) {
    observer.OnCastWebViewDestroyed(web_view);
  }
  web_view->RemoveObserver(this);
  active_webviews_.erase(std::find_if(
      active_webviews_.begin(), active_webviews_.end(),
      [web_view](const ActiveWebview& w) { return w.web_view == web_view; }));
}

std::unique_ptr<CastWebView> CastWebViewFactory::CreateWebView(
    const CastWebView::CreateParams& params,
    CastWebContentsManager* web_contents_manager,
    scoped_refptr<content::SiteInstance> site_instance,
    const extensions::Extension* extension,
    const GURL& initial_url) {
  std::unique_ptr<CastWebView> webview;
  if (extension) {
#if BUILDFLAG(ENABLE_CHROMECAST_EXTENSIONS)
    webview = std::make_unique<CastWebViewExtension>(
        params, browser_context_, site_instance, extension, initial_url);
#endif
  } else {
    webview = std::make_unique<CastWebViewDefault>(
        params, web_contents_manager, browser_context_, site_instance);
  }
  if (webview) {
    active_webviews_.push_back({webview.get(), next_id_++});
    webview->AddObserver(this);
  }
  for (auto& observer : observer_list_) {
    observer.OnCastWebViewCreated(webview.get());
  }
  return webview;
}

void CastWebViewFactory::AddObserver(Observer* observer) {
  observer_list_.AddObserver(observer);
}

void CastWebViewFactory::RemoveObserver(Observer* observer) {
  observer_list_.RemoveObserver(observer);
}

}  // namespace chromecast