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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "track_queue.hpp"
#include <algorithm>
#include <mutex>
#include "audio_events.hpp"
#include "audio_fsm.hpp"
#include "event_queue.hpp"
#include "track.hpp"
#include "ui_fsm.hpp"
namespace audio {
TrackQueue::TrackQueue() {}
auto TrackQueue::GetCurrent() const -> std::optional<database::TrackId> {
const std::lock_guard<std::mutex> lock(mutex_);
return current_;
}
auto TrackQueue::GetUpcoming(std::size_t limit) const
-> std::vector<database::TrackId> {
const std::lock_guard<std::mutex> lock(mutex_);
std::vector<database::TrackId> ret;
limit = std::min(limit, upcoming_.size());
std::for_each_n(upcoming_.begin(), limit,
[&](const auto i) { ret.push_back(i); });
return ret;
}
auto TrackQueue::AddNext(database::TrackId t) -> void {
const std::lock_guard<std::mutex> lock(mutex_);
if (!current_) {
current_ = t;
} else {
upcoming_.push_front(t);
}
events::Dispatch<QueueUpdate, AudioState, ui::UiState>({});
}
auto TrackQueue::AddNext(const std::vector<database::TrackId>& t) -> void {
const std::lock_guard<std::mutex> lock(mutex_);
std::for_each(t.rbegin(), t.rend(),
[&](const auto i) { upcoming_.push_front(i); });
if (!current_) {
current_ = upcoming_.front();
upcoming_.pop_front();
}
events::Dispatch<QueueUpdate, AudioState, ui::UiState>({});
}
auto TrackQueue::AddLast(database::TrackId t) -> void {
const std::lock_guard<std::mutex> lock(mutex_);
if (!current_) {
current_ = t;
} else {
upcoming_.push_back(t);
}
events::Dispatch<QueueUpdate, AudioState, ui::UiState>({});
}
auto TrackQueue::AddLast(const std::vector<database::TrackId>& t) -> void {
const std::lock_guard<std::mutex> lock(mutex_);
std::for_each(t.begin(), t.end(),
[&](const auto i) { upcoming_.push_back(i); });
if (!current_) {
current_ = upcoming_.front();
upcoming_.pop_front();
}
events::Dispatch<QueueUpdate, AudioState, ui::UiState>({});
}
auto TrackQueue::Next() -> void {
const std::lock_guard<std::mutex> lock(mutex_);
if (current_) {
played_.push_front(*current_);
}
if (!upcoming_.empty()) {
current_ = upcoming_.front();
upcoming_.pop_front();
} else {
current_.reset();
}
events::Dispatch<QueueUpdate, AudioState, ui::UiState>({});
}
auto TrackQueue::Previous() -> void {
const std::lock_guard<std::mutex> lock(mutex_);
if (current_) {
upcoming_.push_front(*current_);
}
if (!played_.empty()) {
current_ = played_.front();
played_.pop_front();
} else {
current_.reset();
}
events::Dispatch<QueueUpdate, AudioState, ui::UiState>({});
}
auto TrackQueue::Clear() -> void {
const std::lock_guard<std::mutex> lock(mutex_);
played_.clear();
upcoming_.clear();
current_.reset();
events::Dispatch<QueueUpdate, AudioState, ui::UiState>({});
}
auto TrackQueue::RemoveUpcoming(database::TrackId t) -> void {
const std::lock_guard<std::mutex> lock(mutex_);
for (auto it = upcoming_.begin(); it != upcoming_.end(); it++) {
if (*it == t) {
upcoming_.erase(it);
return;
}
}
events::Dispatch<QueueUpdate, AudioState, ui::UiState>({});
}
} // namespace audio
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