// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.

#include "atom/common/native_mate_converters/content_converter.h"

#include <string>
#include <vector>

#include "atom/browser/api/atom_api_web_contents.h"
#include "atom/browser/web_contents_permission_helper.h"
#include "atom/common/native_mate_converters/blink_converter.h"
#include "atom/common/native_mate_converters/callback.h"
#include "atom/common/native_mate_converters/gurl_converter.h"
#include "atom/common/native_mate_converters/string16_converter.h"
#include "atom/common/native_mate_converters/ui_base_types_converter.h"
#include "atom/common/native_mate_converters/value_converter.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/context_menu_params.h"
#include "content/public/common/resource_request_body.h"
#include "native_mate/dictionary.h"

using content::ResourceRequestBody;

namespace {

void ExecuteCommand(content::WebContents* web_contents,
                    int action,
                    const content::CustomContextMenuContext& context) {
  web_contents->ExecuteCustomContextMenuCommand(action, context);
}

// Forward declaration for nested recursive call.
v8::Local<v8::Value> MenuToV8(v8::Isolate* isolate,
                              content::WebContents* web_contents,
                              const content::CustomContextMenuContext& context,
                              const std::vector<content::MenuItem>& menu);

v8::Local<v8::Value> MenuItemToV8(
    v8::Isolate* isolate,
    content::WebContents* web_contents,
    const content::CustomContextMenuContext& context,
    const content::MenuItem& item) {
  mate::Dictionary v8_item = mate::Dictionary::CreateEmpty(isolate);
  switch (item.type) {
    case content::MenuItem::CHECKABLE_OPTION:
    case content::MenuItem::GROUP:
      v8_item.Set("checked", item.checked);
    case content::MenuItem::OPTION:
    case content::MenuItem::SUBMENU:
      v8_item.Set("label", item.label);
      v8_item.Set("enabled", item.enabled);
    default:
      v8_item.Set("type", item.type);
  }
  if (item.type == content::MenuItem::SUBMENU)
    v8_item.Set("submenu",
                MenuToV8(isolate, web_contents, context, item.submenu));
  else if (item.action > 0)
    v8_item.Set("click",
                base::Bind(ExecuteCommand, web_contents, item.action, context));
  return v8_item.GetHandle();
}

v8::Local<v8::Value> MenuToV8(v8::Isolate* isolate,
                              content::WebContents* web_contents,
                              const content::CustomContextMenuContext& context,
                              const std::vector<content::MenuItem>& menu) {
  std::vector<v8::Local<v8::Value>> v8_menu;
  for (const auto& menu_item : menu)
    v8_menu.push_back(MenuItemToV8(isolate, web_contents, context, menu_item));
  return mate::ConvertToV8(isolate, v8_menu);
}

}  // namespace

namespace mate {

// static
v8::Local<v8::Value> Converter<content::MenuItem::Type>::ToV8(
    v8::Isolate* isolate, const content::MenuItem::Type& val) {
  switch (val) {
    case content::MenuItem::CHECKABLE_OPTION:
      return StringToV8(isolate, "checkbox");
    case content::MenuItem::GROUP:
      return StringToV8(isolate, "radio");
    case content::MenuItem::SEPARATOR:
      return StringToV8(isolate, "separator");
    case content::MenuItem::SUBMENU:
      return StringToV8(isolate, "submenu");
    case content::MenuItem::OPTION:
    default:
      return StringToV8(isolate, "normal");
  }
}

// static
v8::Local<v8::Value> Converter<ContextMenuParamsWithWebContents>::ToV8(
    v8::Isolate* isolate, const ContextMenuParamsWithWebContents& val) {
  const auto& params = val.first;
  mate::Dictionary dict = mate::Dictionary::CreateEmpty(isolate);
  dict.Set("x", params.x);
  dict.Set("y", params.y);
  dict.Set("linkURL", params.link_url);
  dict.Set("linkText", params.link_text);
  dict.Set("pageURL", params.page_url);
  dict.Set("frameURL", params.frame_url);
  dict.Set("srcURL", params.src_url);
  dict.Set("mediaType", params.media_type);
  dict.Set("mediaFlags", MediaFlagsToV8(isolate, params.media_flags));
  bool has_image_contents =
    (params.media_type == blink::WebContextMenuData::kMediaTypeImage) &&
    params.has_image_contents;
  dict.Set("hasImageContents", has_image_contents);
  dict.Set("isEditable", params.is_editable);
  dict.Set("editFlags", EditFlagsToV8(isolate, params.edit_flags));
  dict.Set("selectionText", params.selection_text);
  dict.Set("titleText", params.title_text);
  dict.Set("misspelledWord", params.misspelled_word);
  dict.Set("frameCharset", params.frame_charset);
  dict.Set("inputFieldType", params.input_field_type);
  dict.Set("menuSourceType",  params.source_type);

  if (params.custom_context.is_pepper_menu)
    dict.Set("menu", MenuToV8(isolate, val.second, params.custom_context,
                              params.custom_items));
  return mate::ConvertToV8(isolate, dict);
}

// static
bool Converter<blink::mojom::PermissionStatus>::FromV8(
    v8::Isolate* isolate,
    v8::Local<v8::Value> val,
    blink::mojom::PermissionStatus* out) {
  bool result;
  if (!ConvertFromV8(isolate, val, &result))
    return false;

  if (result)
    *out = blink::mojom::PermissionStatus::GRANTED;
  else
    *out = blink::mojom::PermissionStatus::DENIED;

  return true;
}

// static
v8::Local<v8::Value> Converter<content::PermissionType>::ToV8(
    v8::Isolate* isolate, const content::PermissionType& val) {
  using PermissionType = atom::WebContentsPermissionHelper::PermissionType;
  switch (val) {
    case content::PermissionType::MIDI_SYSEX:
      return StringToV8(isolate, "midiSysex");
    case content::PermissionType::PUSH_MESSAGING:
      return StringToV8(isolate, "pushMessaging");
    case content::PermissionType::NOTIFICATIONS:
      return StringToV8(isolate, "notifications");
    case content::PermissionType::GEOLOCATION:
      return StringToV8(isolate, "geolocation");
    case content::PermissionType::AUDIO_CAPTURE:
    case content::PermissionType::VIDEO_CAPTURE:
      return StringToV8(isolate, "media");
    case content::PermissionType::PROTECTED_MEDIA_IDENTIFIER:
      return StringToV8(isolate, "mediaKeySystem");
    case content::PermissionType::MIDI:
      return StringToV8(isolate, "midi");
    default:
      break;
  }

  if (val == static_cast<content::PermissionType>(PermissionType::POINTER_LOCK))
    return StringToV8(isolate, "pointerLock");
  else if (val ==
           static_cast<content::PermissionType>(PermissionType::FULLSCREEN))
    return StringToV8(isolate, "fullscreen");
  else if (val ==
           static_cast<content::PermissionType>(PermissionType::OPEN_EXTERNAL))
    return StringToV8(isolate, "openExternal");

  return StringToV8(isolate, "unknown");
}

// static
bool Converter<content::StopFindAction>::FromV8(
    v8::Isolate* isolate,
    v8::Local<v8::Value> val,
    content::StopFindAction* out) {
  std::string action;
  if (!ConvertFromV8(isolate, val, &action))
    return false;

  if (action == "clearSelection")
    *out = content::STOP_FIND_ACTION_CLEAR_SELECTION;
  else if (action == "keepSelection")
    *out = content::STOP_FIND_ACTION_KEEP_SELECTION;
  else if (action == "activateSelection")
    *out = content::STOP_FIND_ACTION_ACTIVATE_SELECTION;
  else
    return false;

  return true;
}

// static
v8::Local<v8::Value>
Converter<scoped_refptr<ResourceRequestBody>>::ToV8(
    v8::Isolate* isolate,
    const scoped_refptr<ResourceRequestBody>& val) {
  if (!val)
    return v8::Null(isolate);
  std::unique_ptr<base::ListValue> list(new base::ListValue);
  for (const auto& element : *(val->elements())) {
    std::unique_ptr<base::DictionaryValue> post_data_dict(
        new base::DictionaryValue);
    auto type = element.type();
    if (type == ResourceRequestBody::Element::TYPE_BYTES) {
      std::unique_ptr<base::Value> bytes(
          base::Value::CreateWithCopiedBuffer(
              element.bytes(), static_cast<size_t>(element.length())));
      post_data_dict->SetString("type", "rawData");
      post_data_dict->Set("bytes", std::move(bytes));
    } else if (type == ResourceRequestBody::Element::TYPE_FILE) {
      post_data_dict->SetString("type", "file");
      post_data_dict->SetStringWithoutPathExpansion(
          "filePath", element.path().AsUTF8Unsafe());
      post_data_dict->SetInteger("offset", static_cast<int>(element.offset()));
      post_data_dict->SetInteger("length", static_cast<int>(element.length()));
      post_data_dict->SetDouble(
          "modificationTime", element.expected_modification_time().ToDoubleT());
    } else if (type == ResourceRequestBody::Element::TYPE_FILE_FILESYSTEM) {
      post_data_dict->SetString("type", "fileSystem");
      post_data_dict->SetStringWithoutPathExpansion(
          "fileSystemURL", element.filesystem_url().spec());
      post_data_dict->SetInteger("offset", static_cast<int>(element.offset()));
      post_data_dict->SetInteger("length", static_cast<int>(element.length()));
      post_data_dict->SetDouble(
          "modificationTime", element.expected_modification_time().ToDoubleT());
    } else if (type == ResourceRequestBody::Element::TYPE_BLOB) {
      post_data_dict->SetString("type", "blob");
      post_data_dict->SetString("blobUUID", element.blob_uuid());
    }
    list->Append(std::move(post_data_dict));
  }
  return ConvertToV8(isolate, *list);
}

// static
bool Converter<scoped_refptr<ResourceRequestBody>>::FromV8(
    v8::Isolate* isolate,
    v8::Local<v8::Value> val,
    scoped_refptr<ResourceRequestBody>* out) {
  std::unique_ptr<base::ListValue> list(new base::ListValue);
  if (!ConvertFromV8(isolate, val, list.get()))
    return false;
  *out = new content::ResourceRequestBody();
  for (size_t i = 0; i < list->GetSize(); ++i) {
    base::DictionaryValue* dict = nullptr;
    std::string type;
    if (!list->GetDictionary(i, &dict))
      return false;
    dict->GetString("type", &type);
    if (type == "rawData") {
      base::Value* bytes = nullptr;
      dict->GetBinary("bytes", &bytes);
      (*out)->AppendBytes(bytes->GetBlob().data(), bytes->GetBlob().size());
    } else if (type == "file") {
      std::string file;
      int offset = 0, length = -1;
      double modification_time = 0.0;
      dict->GetStringWithoutPathExpansion("filePath", &file);
      dict->GetInteger("offset", &offset);
      dict->GetInteger("file", &length);
      dict->GetDouble("modificationTime", &modification_time);
      (*out)->AppendFileRange(base::FilePath::FromUTF8Unsafe(file),
                              static_cast<uint64_t>(offset),
                              static_cast<uint64_t>(length),
                              base::Time::FromDoubleT(modification_time));
    } else if (type == "fileSystem") {
      std::string file_system_url;
      int offset = 0, length = -1;
      double modification_time = 0.0;
      dict->GetStringWithoutPathExpansion("fileSystemURL", &file_system_url);
      dict->GetInteger("offset", &offset);
      dict->GetInteger("file", &length);
      dict->GetDouble("modificationTime", &modification_time);
      (*out)->AppendFileSystemFileRange(
          GURL(file_system_url),
          static_cast<uint64_t>(offset),
          static_cast<uint64_t>(length),
          base::Time::FromDoubleT(modification_time));
    } else if (type == "blob") {
      std::string uuid;
      dict->GetString("blobUUID", &uuid);
      (*out)->AppendBlob(uuid);
    }
  }
  return true;
}

// static
v8::Local<v8::Value> Converter<content::WebContents*>::ToV8(
    v8::Isolate* isolate, content::WebContents* val) {
  if (!val)
    return v8::Null(isolate);
  return atom::api::WebContents::CreateFrom(isolate, val).ToV8();
}

// static
bool Converter<content::WebContents*>::FromV8(
    v8::Isolate* isolate,
    v8::Local<v8::Value> val,
    content::WebContents** out) {
  atom::api::WebContents* web_contents = nullptr;
  if (!ConvertFromV8(isolate, val, &web_contents) || !web_contents)
    return false;

  *out = web_contents->web_contents();
  return true;
}

}  // namespace mate
