// Copyright (c) 2012 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 "chrome/browser/google_apis/drive_api_operations.h"

#include "base/json/json_writer.h"
#include "base/values.h"

namespace google_apis {
namespace {

const char kContentTypeApplicationJson[] = "application/json";
const char kDirectoryMimeType[] = "application/vnd.google-apps.folder";

}  // namespace

//============================== GetAboutOperation =============================

GetAboutOperation::GetAboutOperation(
    OperationRegistry* registry,
    net::URLRequestContextGetter* url_request_context_getter,
    const DriveApiUrlGenerator& url_generator,
    const GetDataCallback& callback)
    : GetDataOperation(registry, url_request_context_getter, callback),
      url_generator_(url_generator) {
  DCHECK(!callback.is_null());
}

GetAboutOperation::~GetAboutOperation() {}

GURL GetAboutOperation::GetURL() const {
  return url_generator_.GetAboutUrl();
}

//============================== GetApplistOperation ===========================

GetApplistOperation::GetApplistOperation(
    OperationRegistry* registry,
    net::URLRequestContextGetter* url_request_context_getter,
    const DriveApiUrlGenerator& url_generator,
    const GetDataCallback& callback)
    : GetDataOperation(registry, url_request_context_getter, callback),
      url_generator_(url_generator) {
  DCHECK(!callback.is_null());
}

GetApplistOperation::~GetApplistOperation() {}

GURL GetApplistOperation::GetURL() const {
  return url_generator_.GetApplistUrl();
}

//============================ GetChangelistOperation ==========================

GetChangelistOperation::GetChangelistOperation(
    OperationRegistry* registry,
    net::URLRequestContextGetter* url_request_context_getter,
    const DriveApiUrlGenerator& url_generator,
    const GURL& url,
    int64 start_changestamp,
    const GetDataCallback& callback)
    : GetDataOperation(registry, url_request_context_getter, callback),
      url_generator_(url_generator),
      url_(url),
      start_changestamp_(start_changestamp) {
  DCHECK(!callback.is_null());
}

GetChangelistOperation::~GetChangelistOperation() {}

GURL GetChangelistOperation::GetURL() const {
  return url_generator_.GetChangelistUrl(url_, start_changestamp_);
}

//============================= GetFlielistOperation ===========================

GetFilelistOperation::GetFilelistOperation(
    OperationRegistry* registry,
    net::URLRequestContextGetter* url_request_context_getter,
    const DriveApiUrlGenerator& url_generator,
    const GURL& url,
    const std::string& search_string,
    const GetDataCallback& callback)
    : GetDataOperation(registry, url_request_context_getter, callback),
      url_generator_(url_generator),
      url_(url),
      search_string_(search_string) {
  DCHECK(!callback.is_null());
}

GetFilelistOperation::~GetFilelistOperation() {}

GURL GetFilelistOperation::GetURL() const {
  return url_generator_.GetFilelistUrl(url_, search_string_);
}

//=============================== GetFlieOperation =============================

GetFileOperation::GetFileOperation(
    OperationRegistry* registry,
    net::URLRequestContextGetter* url_request_context_getter,
    const DriveApiUrlGenerator& url_generator,
    const std::string& file_id,
    const GetDataCallback& callback)
    : GetDataOperation(registry, url_request_context_getter, callback),
      url_generator_(url_generator),
      file_id_(file_id) {
  DCHECK(!callback.is_null());
}

GetFileOperation::~GetFileOperation() {}

GURL GetFileOperation::GetURL() const {
  return url_generator_.GetFileUrl(file_id_);
}

namespace drive {

//========================== CreateDirectoryOperation ==========================

CreateDirectoryOperation::CreateDirectoryOperation(
    OperationRegistry* registry,
    net::URLRequestContextGetter* url_request_context_getter,
    const DriveApiUrlGenerator& url_generator,
    const std::string& parent_resource_id,
    const std::string& directory_name,
    const GetDataCallback& callback)
    : GetDataOperation(registry, url_request_context_getter, callback),
      url_generator_(url_generator),
      parent_resource_id_(parent_resource_id),
      directory_name_(directory_name) {
  DCHECK(!callback.is_null());
}

CreateDirectoryOperation::~CreateDirectoryOperation() {}

GURL CreateDirectoryOperation::GetURL() const {
  if (parent_resource_id_.empty() || directory_name_.empty()) {
    return GURL();
  }
  return url_generator_.GetFilelistUrl(GURL(), "");
}

net::URLFetcher::RequestType CreateDirectoryOperation::GetRequestType() const {
  return net::URLFetcher::POST;
}

bool CreateDirectoryOperation::GetContentData(std::string* upload_content_type,
                                              std::string* upload_content) {
  *upload_content_type = kContentTypeApplicationJson;

  base::DictionaryValue root;
  root.SetString("title", directory_name_);
  {
    base::DictionaryValue* parent_value = new base::DictionaryValue;
    parent_value->SetString("id", parent_resource_id_);
    base::ListValue* parent_list_value = new base::ListValue;
    parent_list_value->Append(parent_value);
    root.Set("parents", parent_list_value);
  }
  root.SetString("mimeType", kDirectoryMimeType);

  base::JSONWriter::Write(&root, upload_content);

  DVLOG(1) << "CreateDirectory data: " << *upload_content_type << ", ["
           << *upload_content << "]";
  return true;
}

}  // namespace drive
}  // namespace google_apis