//
//	GuiGameScraper.cpp
//
//	Single game scraping user interface.
//	This interface is triggered from GuiMetaDataEd.
//	GuiScraperSearch is called from here.
//

#include "guis/GuiGameScraper.h"

#include "components/ButtonComponent.h"
#include "components/MenuComponent.h"
#include "components/TextComponent.h"
#include "FileData.h"
#include "PowerSaver.h"
#include "SystemData.h"

GuiGameScraper::GuiGameScraper(
		Window* window,
		ScraperSearchParams params,
		std::function<void(const ScraperSearchResult&)> doneFunc)
		: GuiComponent(window),
		mGrid(window, Vector2i(1, 7)),
		mBox(window, ":/frame.png"),
		mSearchParams(params),
		mClose(false)
{
	PowerSaver::pause();
	addChild(&mBox);
	addChild(&mGrid);

	// Row 0 is a spacer.

	mGameName = std::make_shared<TextComponent>(mWindow, Utils::String::toUpper(
			Utils::FileSystem::getFileName(mSearchParams.game->getPath())),
			Font::get(FONT_SIZE_MEDIUM), 0x777777FF, ALIGN_CENTER);
	mGrid.setEntry(mGameName, Vector2i(0, 1), false, true);

	// Row 2 is a spacer.

	mSystemName = std::make_shared<TextComponent>(mWindow, Utils::String::toUpper(
			mSearchParams.system->getFullName()), Font::get(FONT_SIZE_SMALL),
			0x888888FF, ALIGN_CENTER);
	mGrid.setEntry(mSystemName, Vector2i(0, 3), false, true);

	// Row 4 is a spacer.

	// GuiScraperSearch.
	mSearch = std::make_shared<GuiScraperSearch>(window,
			GuiScraperSearch::NEVER_AUTO_ACCEPT);
	mGrid.setEntry(mSearch, Vector2i(0, 5), true);

	// Buttons
	std::vector< std::shared_ptr<ButtonComponent> > buttons;

	buttons.push_back(std::make_shared<ButtonComponent>(mWindow, "INPUT", "search", [&] {
		mSearch->openInputScreen(mSearchParams);
		mGrid.resetCursor();
	}));
	buttons.push_back(std::make_shared<ButtonComponent>(
			mWindow, "CANCEL", "cancel", [&] { delete this; }));
	mButtonGrid = makeButtonGrid(mWindow, buttons);

	mGrid.setEntry(mButtonGrid, Vector2i(0, 6), true, false);

	// We call this->close() instead of just 'delete this' in the accept callback.
	// This is because of how GuiComponent::update works. If it was just 'delete this',
	// the following would happen when the metadata resolver is done:
	//     GuiGameScraper::update()
	//       GuiComponent::update()
	//         it = mChildren.cbegin();
	//         mBox::update()
	//         it++;
	//         mSearchComponent::update()
	//           acceptCallback -> delete this
	//         it++; // Error, mChildren has been deleted because it was part of 'this'.

	// So instead we do this:
	//     GuiGameScraper::update()
	//       GuiComponent::update()
	//         it = mChildren.cbegin();
	//         mBox::update()
	//         it++;
	//         mSearchComponent::update()
	//           acceptCallback -> close() -> mClose = true
	//         it++; // OK.
	//       if(mClose)
	//         delete this;
	mSearch->setAcceptCallback([this, doneFunc](const ScraperSearchResult& result) {
			doneFunc(result); close(); });
	mSearch->setCancelCallback([&] { delete this; });

	setSize(Renderer::getScreenWidth() * 0.95f, Renderer::getScreenHeight() * 0.747f);
	setPosition((Renderer::getScreenWidth() - mSize.x()) / 2, (Renderer::getScreenHeight() -
			mSize.y()) / 2);

	mGrid.resetCursor();
	mSearch->search(params); // Start the search.
}

void GuiGameScraper::onSizeChanged()
{
	mBox.fitTo(mSize, Vector3f::Zero(), Vector2f(-32, -32));

	mGrid.setRowHeightPerc(0, 0.04f, false);
	mGrid.setRowHeightPerc(1, mGameName->getFont()->getLetterHeight() /
			mSize.y(), false); // Game name.
	mGrid.setRowHeightPerc(2, 0.04f, false);
	mGrid.setRowHeightPerc(3, mSystemName->getFont()->getLetterHeight() /
			mSize.y(), false); // System name.
	mGrid.setRowHeightPerc(4, 0.04f, false);
	mGrid.setRowHeightPerc(6, mButtonGrid->getSize().y() / mSize.y(), false); // Buttons.
	mGrid.setSize(mSize);
}

bool GuiGameScraper::input(InputConfig* config, Input input)
{
	if(config->isMappedTo("b", input) && input.value) {
		PowerSaver::resume();
		delete this;
		return true;
	}

	return GuiComponent::input(config, input);
}

void GuiGameScraper::update(int deltaTime)
{
	GuiComponent::update(deltaTime);

	if(mClose)
		delete this;
}

std::vector<HelpPrompt> GuiGameScraper::getHelpPrompts()
{
	return mGrid.getHelpPrompts();
}

void GuiGameScraper::close()
{
	mClose = true;
}