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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/offline_pages/core/background/reconcile_task.h"
#include "base/functional/bind.h"
#include "components/offline_pages/core/background/offliner_policy.h"
#include "components/offline_pages/core/background/request_coordinator_event_logger.h"
#include "components/offline_pages/core/background/request_notifier.h"
#include "components/offline_pages/core/background/request_queue_store.h"
#include "components/offline_pages/core/background/save_page_request.h"
namespace offline_pages {
ReconcileTask::ReconcileTask(RequestQueueStore* store,
RequestQueueStore::UpdateCallback callback)
: store_(store), callback_(std::move(callback)) {}
ReconcileTask::~ReconcileTask() = default;
void ReconcileTask::Run() {
GetRequests();
}
void ReconcileTask::GetRequests() {
// Get all the requests from the queue, we will reconcile them in the
// callback.
store_->GetRequests(base::BindOnce(&ReconcileTask::Reconcile,
weak_ptr_factory_.GetWeakPtr()));
}
void ReconcileTask::Reconcile(
bool success,
std::vector<std::unique_ptr<SavePageRequest>> requests) {
// If there is nothing to do, return right away, no need to call the callback,
// since the state of the notifications did not change.
if (requests.empty()) {
TaskComplete();
return;
}
// Check for tasks in the OFFLINING state, and change the state back to
// AVAILABLE.
std::vector<SavePageRequest> items_to_update;
for (auto& request : requests) {
if (request->request_state() == SavePageRequest::RequestState::OFFLINING) {
request->set_request_state(SavePageRequest::RequestState::AVAILABLE);
items_to_update.push_back(*request);
}
}
// If there is no work (most common case), just return, no need for a
// callback.
if (items_to_update.empty()) {
TaskComplete();
return;
}
store_->UpdateRequests(items_to_update,
base::BindOnce(&ReconcileTask::UpdateCompleted,
weak_ptr_factory_.GetWeakPtr()));
}
void ReconcileTask::UpdateCompleted(UpdateRequestsResult update_result) {
// Send a notification to the UI that these items have updated.
std::move(callback_).Run(std::move(update_result));
TaskComplete();
}
} // namespace offline_pages
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