#include "macro-condition-plugin-state.hpp"
#include "layout-helpers.hpp"
#include "macro-helpers.hpp"
#include "plugin-state-helpers.hpp"

namespace advss {

const uint32_t MacroConditionPluginState::_version = 1;

const std::string MacroConditionPluginState::id = "plugin_state";

bool MacroConditionPluginState::_registered = MacroConditionFactory::Register(
	MacroConditionPluginState::id,
	{MacroConditionPluginState::Create,
	 MacroConditionPluginStateEdit::Create,
	 "AdvSceneSwitcher.condition.pluginState"});

const static std::map<MacroConditionPluginState::Condition, std::string>
	pluginStateConditionTypes = {
		{MacroConditionPluginState::Condition::PLUGIN_START,
		 "AdvSceneSwitcher.condition.pluginState.state.start"},
		{MacroConditionPluginState::Condition::PLUGIN_RESTART,
		 "AdvSceneSwitcher.condition.pluginState.state.restart"},
		{MacroConditionPluginState::Condition::PLUGIN_RUNNING,
		 "AdvSceneSwitcher.condition.pluginState.state.running"},
		{MacroConditionPluginState::Condition::OBS_SHUTDOWN,
		 "AdvSceneSwitcher.condition.pluginState.state.shutdown"},
		{MacroConditionPluginState::Condition::SCENE_COLLECTION_CHANGE,
		 "AdvSceneSwitcher.condition.pluginState.state.sceneCollection"},
		{MacroConditionPluginState::Condition::PLUGIN_SCENE_CHANGE,
		 "AdvSceneSwitcher.condition.pluginState.state.sceneSwitched"},
};

MacroConditionPluginState::~MacroConditionPluginState()
{
	if (_condition == Condition::OBS_SHUTDOWN) {
		GetShutdownConditionCount()--;
	}
}

bool MacroConditionPluginState::CheckCondition()
{
	switch (_condition) {
	case Condition::PLUGIN_SCENE_CHANGE:
		return MacroSwitchedScene();
	case Condition::PLUGIN_RUNNING:
		return true;
	case Condition::OBS_SHUTDOWN:
		return OBSIsShuttingDown();
	case Condition::PLUGIN_START:
		return IsFirstInterval();
	case Condition::PLUGIN_RESTART:
		return IsFirstIntervalAfterStop();
	case Condition::SCENE_COLLECTION_CHANGE:
		if (_firstCheckAfterSceneCollectionChange) {
			_firstCheckAfterSceneCollectionChange = false;
			return true;
		}
		return false;
	}
	return false;
}

bool MacroConditionPluginState::Save(obs_data_t *obj) const
{
	MacroCondition::Save(obj);
	obs_data_set_int(obj, "condition", static_cast<int>(_condition));
	obs_data_set_int(obj, "version", _version);
	return true;
}

bool MacroConditionPluginState::Load(obs_data_t *obj)
{
	MacroCondition::Load(obj);

	// TODO: Remove fallback for older version
	if (!obs_data_has_user_value(obj, "version")) {
		enum class PluginStateCondition {
			SCENE_SWITCHED,
			RUNNING,
			SHUTDOWN,
		};
		auto oldValue = static_cast<PluginStateCondition>(
			obs_data_get_int(obj, "condition"));
		switch (oldValue) {
		case PluginStateCondition::SCENE_SWITCHED:
			SetCondition(Condition::PLUGIN_SCENE_CHANGE);
			break;
		case PluginStateCondition::RUNNING:
			SetCondition(Condition::PLUGIN_RUNNING);
			break;
		case PluginStateCondition::SHUTDOWN:
			SetCondition(Condition::OBS_SHUTDOWN);
			break;
		}
	} else {
		SetCondition(static_cast<Condition>(
			obs_data_get_int(obj, "condition")));
	}
	return true;
}

void MacroConditionPluginState::SetCondition(Condition newValue)
{
	if (_condition == Condition::OBS_SHUTDOWN) {
		GetShutdownConditionCount()--;
	}
	if (newValue == Condition::OBS_SHUTDOWN) {
		GetShutdownConditionCount()++;
	}
	_condition = newValue;
}

static inline void populateConditionSelection(QComboBox *list)
{
	for (const auto &[action, name] : pluginStateConditionTypes) {
		list->addItem(obs_module_text(name.c_str()),
			      static_cast<int>(action));
	}
}

MacroConditionPluginStateEdit::MacroConditionPluginStateEdit(
	QWidget *parent, std::shared_ptr<MacroConditionPluginState> entryData)
	: QWidget(parent),
	  _condition(new QComboBox()),
	  _shutdownLimitation(new QLabel(obs_module_text(
		  "AdvSceneSwitcher.condition.pluginState.state.shutdown.limitation")))
{
	_shutdownLimitation->setWordWrap(true);
	QWidget::connect(_condition, SIGNAL(currentIndexChanged(int)), this,
			 SLOT(ConditionChanged(int)));
	populateConditionSelection(_condition);

	auto entryLayout = new QHBoxLayout;
	std::unordered_map<std::string, QWidget *> widgetPlaceholders = {
		{"{{condition}}", _condition},
	};
	PlaceWidgets(
		obs_module_text("AdvSceneSwitcher.condition.pluginState.entry"),
		entryLayout, widgetPlaceholders);
	entryLayout->setContentsMargins(0, 0, 0, 0);

	auto mainLayout = new QVBoxLayout;
	mainLayout->addLayout(entryLayout);
	mainLayout->addWidget(_shutdownLimitation);
	setLayout(mainLayout);

	_entryData = entryData;
	UpdateEntryData();
	_loading = false;
}

void MacroConditionPluginStateEdit::ConditionChanged(int idx)
{
	if (_loading || !_entryData) {
		return;
	}

	auto lock = LockContext();
	_entryData->SetCondition(
		static_cast<MacroConditionPluginState::Condition>(
			_condition->itemData(idx).toInt()));
	SetWidgetVisibility();
}

void MacroConditionPluginStateEdit::UpdateEntryData()
{
	if (!_entryData) {
		return;
	}

	_condition->setCurrentIndex(_condition->findData(
		static_cast<int>(_entryData->GetCondition())));
	SetWidgetVisibility();
}

void MacroConditionPluginStateEdit::SetWidgetVisibility()
{
	_shutdownLimitation->setVisible(
		_entryData->GetCondition() ==
		MacroConditionPluginState::Condition::OBS_SHUTDOWN);
	adjustSize();
	updateGeometry();
}

} // namespace advss