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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "ui_fsm.hpp"
#include <memory>
#include "audio_events.hpp"
#include "core/lv_obj.h"
#include "display.hpp"
#include "event_queue.hpp"
#include "lvgl_task.hpp"
#include "relative_wheel.hpp"
#include "screen.hpp"
#include "screen_menu.hpp"
#include "screen_playing.hpp"
#include "screen_splash.hpp"
#include "screen_track_browser.hpp"
#include "source.hpp"
#include "system_events.hpp"
#include "touchwheel.hpp"
#include "track_queue.hpp"
#include "ui_events.hpp"
namespace ui {
static constexpr char kTag[] = "ui_fsm";
static const std::size_t kRecordsPerPage = 15;
drivers::IGpios* UiState::sIGpios;
audio::TrackQueue* UiState::sQueue;
std::shared_ptr<drivers::TouchWheel> UiState::sTouchWheel;
std::shared_ptr<drivers::RelativeWheel> UiState::sRelativeWheel;
std::shared_ptr<drivers::Display> UiState::sDisplay;
std::weak_ptr<database::Database> UiState::sDb;
std::stack<std::shared_ptr<Screen>> UiState::sScreens;
std::shared_ptr<Screen> UiState::sCurrentScreen;
auto UiState::Init(drivers::IGpios* gpio_expander, audio::TrackQueue* queue)
-> bool {
sIGpios = gpio_expander;
sQueue = queue;
lv_init();
sDisplay.reset(
drivers::Display::Create(gpio_expander, drivers::displays::kST7735R));
if (sDisplay == nullptr) {
return false;
}
sTouchWheel.reset(drivers::TouchWheel::Create());
if (sTouchWheel != nullptr) {
sRelativeWheel.reset(new drivers::RelativeWheel(sTouchWheel.get()));
}
sCurrentScreen.reset(new screens::Splash());
// Start the UI task even if init ultimately failed, so that we can show some
// kind of error screen to the user.
StartLvgl(sRelativeWheel, sDisplay);
if (sTouchWheel == nullptr) {
return false;
}
return true;
}
void UiState::PushScreen(std::shared_ptr<Screen> screen) {
if (sCurrentScreen) {
sScreens.push(sCurrentScreen);
}
sCurrentScreen = screen;
}
void UiState::PopScreen() {
if (sScreens.empty()) {
return;
}
sCurrentScreen = sScreens.top();
sScreens.pop();
}
namespace states {
void Splash::exit() {
if (sDisplay != nullptr) {
sDisplay->SetDisplayOn(true);
}
}
void Splash::react(const system_fsm::BootComplete& ev) {
transit<Browse>();
}
void Browse::entry() {}
void Browse::react(const system_fsm::KeyLockChanged& ev) {
sDisplay->SetDisplayOn(ev.falling);
}
void Browse::react(const system_fsm::StorageMounted& ev) {
sDb = ev.db;
auto db = ev.db.lock();
if (!db) {
// TODO(jacqueline): Hmm.
return;
}
PushScreen(std::make_shared<screens::Menu>(db->GetIndexes()));
}
void Browse::react(const internal::RecordSelected& ev) {
auto db = sDb.lock();
if (!db) {
return;
}
auto record = ev.page->values().at(ev.record);
if (record.track()) {
ESP_LOGI(kTag, "selected track '%s'", record.text()->c_str());
sQueue->Clear();
sQueue->IncludeLast(std::make_shared<playlist::IndexRecordSource>(
sDb, ev.initial_page, 0, ev.page, ev.record));
transit<Playing>();
} else {
ESP_LOGI(kTag, "selected record '%s'", record.text()->c_str());
auto cont = record.Expand(kRecordsPerPage);
if (!cont) {
return;
}
auto query = db->GetPage(&cont.value());
std::string title = record.text().value_or("TODO");
PushScreen(
std::make_shared<screens::TrackBrowser>(sDb, title, std::move(query)));
}
}
void Browse::react(const internal::IndexSelected& ev) {
auto db = sDb.lock();
if (!db) {
return;
}
ESP_LOGI(kTag, "selected index %s", ev.index.name.c_str());
auto query = db->GetTracksByIndex(ev.index, kRecordsPerPage);
PushScreen(std::make_shared<screens::TrackBrowser>(sDb, ev.index.name,
std::move(query)));
}
void Browse::react(const internal::BackPressed& ev) {
PopScreen();
}
static std::shared_ptr<screens::Playing> sPlayingScreen;
void Playing::entry() {
sPlayingScreen.reset(new screens::Playing(sDb, sQueue));
PushScreen(sPlayingScreen);
}
void Playing::exit() {
sPlayingScreen.reset();
PopScreen();
}
void Playing::react(const audio::PlaybackStarted& ev) {
sPlayingScreen->OnTrackUpdate();
}
void Playing::react(const audio::PlaybackUpdate& ev) {
sPlayingScreen->OnPlaybackUpdate(ev.seconds_elapsed, ev.seconds_total);
}
void Playing::react(const audio::QueueUpdate& ev) {
sPlayingScreen->OnQueueUpdate();
}
void Playing::react(const internal::BackPressed& ev) {
transit<Browse>();
}
} // namespace states
} // namespace ui
FSM_INITIAL_STATE(ui::UiState, ui::states::Splash)
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