// 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/extensions/pack_extension_job.h"

#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "base/strings/sys_string_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/extensions/extension_creator.h"
#include "extensions/common/constants.h"
#include "grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"

using content::BrowserThread;

namespace extensions {

PackExtensionJob::PackExtensionJob(Client* client,
                                   const base::FilePath& root_directory,
                                   const base::FilePath& key_file,
                                   int run_flags)
    : client_(client), key_file_(key_file), asynchronous_(true),
      run_flags_(run_flags | ExtensionCreator::kRequireModernManifestVersion) {
  root_directory_ = root_directory.StripTrailingSeparators();
  CHECK(BrowserThread::GetCurrentThreadIdentifier(&client_thread_id_));
}

void PackExtensionJob::Start() {
  if (asynchronous_) {
    BrowserThread::PostTask(
        BrowserThread::FILE, FROM_HERE,
        base::Bind(&PackExtensionJob::Run, this));
  } else {
    Run();
  }
}

void PackExtensionJob::ClearClient() {
  client_ = NULL;
}

PackExtensionJob::~PackExtensionJob() {}

void PackExtensionJob::Run() {
  crx_file_out_ = base::FilePath(root_directory_.value() +
                                 kExtensionFileExtension);

  if (key_file_.empty())
    key_file_out_ = base::FilePath(root_directory_.value() +
                                   kExtensionKeyFileExtension);

  // TODO(aa): Need to internationalize the errors that ExtensionCreator
  // returns. See bug 20734.
  ExtensionCreator creator;
  if (creator.Run(root_directory_, crx_file_out_, key_file_, key_file_out_,
                  run_flags_)) {
    if (asynchronous_) {
      BrowserThread::PostTask(
          client_thread_id_, FROM_HERE,
          base::Bind(&PackExtensionJob::ReportSuccessOnClientThread, this));
    } else {
      ReportSuccessOnClientThread();
    }
  } else {
    if (asynchronous_) {
      BrowserThread::PostTask(
          client_thread_id_, FROM_HERE,
          base::Bind(
              &PackExtensionJob::ReportFailureOnClientThread, this,
              creator.error_message(), creator.error_type()));
    } else {
      ReportFailureOnClientThread(creator.error_message(),
          creator.error_type());
    }
  }
}

void PackExtensionJob::ReportSuccessOnClientThread() {
  if (client_)
    client_->OnPackSuccess(crx_file_out_, key_file_out_);
}

void PackExtensionJob::ReportFailureOnClientThread(
    const std::string& error,
    ExtensionCreator::ErrorType error_type) {
  if (client_)
    client_->OnPackFailure(error, error_type);
}

// static
string16 PackExtensionJob::StandardSuccessMessage(
    const base::FilePath& crx_file,
    const base::FilePath& key_file) {
  string16 crx_file_string = crx_file.LossyDisplayName();
  string16 key_file_string = key_file.LossyDisplayName();
  if (key_file_string.empty()) {
    return l10n_util::GetStringFUTF16(
        IDS_EXTENSION_PACK_DIALOG_SUCCESS_BODY_UPDATE,
        crx_file_string);
  } else {
    return l10n_util::GetStringFUTF16(
        IDS_EXTENSION_PACK_DIALOG_SUCCESS_BODY_NEW,
        crx_file_string,
        key_file_string);
  }
}

}  // namespace extensions