//  SPDX-License-Identifier: MIT
//
//  EmulationStation Desktop Edition
//  GuiScraperMulti.cpp
//
//  Multiple game scraping user interface.
//  Shows the progress for the scraping as it's running.
//  This interface is triggered from GuiScraperMenu.
//  GuiScraperSearch is called from here.
//

#include "guis/GuiScraperMulti.h"

#include "CollectionSystemsManager.h"
#include "FileFilterIndex.h"
#include "GamelistFileParser.h"
#include "MameNames.h"
#include "SystemData.h"
#include "Window.h"
#include "components/ButtonComponent.h"
#include "components/MenuComponent.h"
#include "components/TextComponent.h"
#include "guis/GuiMsgBox.h"
#include "guis/GuiScraperSearch.h"
#include "views/ViewController.h"

GuiScraperMulti::GuiScraperMulti(const std::queue<ScraperSearchParams>& searches,
                                 bool approveResults)
    : mBackground {":/graphics/frame.svg"}
    , mGrid {glm::ivec2 {2, 6}}
    , mSearchQueue {searches}
    , mApproveResults {approveResults}
{
    assert(mSearchQueue.size());

    addChild(&mBackground);
    addChild(&mGrid);

    mIsProcessing = true;

    mTotalGames = static_cast<int>(mSearchQueue.size());
    mCurrentGame = 0;
    mTotalSuccessful = 0;
    mTotalSkipped = 0;

    // Set up grid.
    mTitle = std::make_shared<TextComponent>("SCRAPING IN PROGRESS", Font::get(FONT_SIZE_LARGE),
                                             0x555555FF, ALIGN_CENTER);
    mGrid.setEntry(mTitle, glm::ivec2 {0, 0}, false, true, glm::ivec2 {2, 2});

    mSystem = std::make_shared<TextComponent>("SYSTEM", Font::get(FONT_SIZE_MEDIUM), 0x777777FF,
                                              ALIGN_CENTER);
    mGrid.setEntry(mSystem, glm::ivec2 {0, 2}, false, true, glm::ivec2 {2, 1});

    mSubtitle = std::make_shared<TextComponent>("subtitle text", Font::get(FONT_SIZE_SMALL),
                                                0x888888FF, ALIGN_CENTER);
    mGrid.setEntry(mSubtitle, glm::ivec2 {0, 3}, false, true, glm::ivec2 {2, 1});

    if (mApproveResults && !Settings::getInstance()->getBool("ScraperSemiautomatic"))
        mSearchComp =
            std::make_shared<GuiScraperSearch>(GuiScraperSearch::NEVER_AUTO_ACCEPT, mTotalGames);
    else if (mApproveResults && Settings::getInstance()->getBool("ScraperSemiautomatic"))
        mSearchComp = std::make_shared<GuiScraperSearch>(GuiScraperSearch::ACCEPT_SINGLE_MATCHES,
                                                         mTotalGames);
    else if (!mApproveResults)
        mSearchComp = std::make_shared<GuiScraperSearch>(
            GuiScraperSearch::ALWAYS_ACCEPT_FIRST_RESULT, mTotalGames);
    mSearchComp->setAcceptCallback(
        std::bind(&GuiScraperMulti::acceptResult, this, std::placeholders::_1));
    mSearchComp->setSkipCallback(std::bind(&GuiScraperMulti::skip, this));
    mSearchComp->setCancelCallback(std::bind(&GuiScraperMulti::finish, this));
    mSearchComp->setRefineCallback([&] {
        mScrollUp->setOpacity(0.0f);
        mScrollDown->setOpacity(0.0f);
        mResultList->resetScrollIndicatorStatus();
    });

    mGrid.setEntry(mSearchComp, glm::ivec2 {0, 4},
                   mSearchComp->getSearchType() != GuiScraperSearch::ALWAYS_ACCEPT_FIRST_RESULT,
                   true, glm::ivec2 {2, 1});

    mResultList = mSearchComp->getResultList();

    // Set up scroll indicators.
    mScrollUp = std::make_shared<ImageComponent>();
    mScrollDown = std::make_shared<ImageComponent>();
    mScrollIndicator =
        std::make_shared<ScrollIndicatorComponent>(mResultList, mScrollUp, mScrollDown);

    mScrollUp->setResize(0.0f, mTitle->getFont()->getLetterHeight() / 2.0f);
    mScrollUp->setOrigin(0.0f, -0.35f);

    mScrollDown->setResize(0.0f, mTitle->getFont()->getLetterHeight() / 2.0f);
    mScrollDown->setOrigin(0.0f, 0.35f);

    mGrid.setEntry(mScrollUp, glm::ivec2 {1, 0}, false, false, glm::ivec2 {1, 1});
    mGrid.setEntry(mScrollDown, glm::ivec2 {1, 1}, false, false, glm::ivec2 {1, 1});

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

    if (mApproveResults) {
        buttons.push_back(std::make_shared<ButtonComponent>("REFINE SEARCH", "refine search", [&] {
            // Check whether we should allow a refine of the game name.
            if (!mSearchComp->getAcceptedResult()) {
                bool allowRefine = false;

                // Previously refined.
                if (mSearchComp->getRefinedSearch())
                    allowRefine = true;
                // Interactive mode and "Auto-accept single game matches" not enabled.
                else if (mSearchComp->getSearchType() != GuiScraperSearch::ACCEPT_SINGLE_MATCHES)
                    allowRefine = true;
                // Interactive mode with "Auto-accept single game matches" enabled and more
                // than one result.
                else if (mSearchComp->getSearchType() == GuiScraperSearch::ACCEPT_SINGLE_MATCHES &&
                         mSearchComp->getScraperResultsSize() > 1)
                    allowRefine = true;
                // Dito but there were no games found, or the search has not been completed.
                else if (mSearchComp->getSearchType() == GuiScraperSearch::ACCEPT_SINGLE_MATCHES &&
                         !mSearchComp->getFoundGame())
                    allowRefine = true;

                if (allowRefine) {
                    // Copy any search refine that may have been previously entered by opening
                    // the input screen using the "Y" button shortcut.
                    mSearchQueue.front().nameOverride = mSearchComp->getNameOverride();
                    mSearchComp->openInputScreen(mSearchQueue.front());
                    mGrid.resetCursor();
                }
            }
        }));

        buttons.push_back(std::make_shared<ButtonComponent>("SKIP", "skip game", [&] {
            // Skip game, unless the result has already been accepted.
            if (!mSearchComp->getAcceptedResult()) {
                skip();
                mGrid.resetCursor();
            }
        }));
    }

    buttons.push_back(std::make_shared<ButtonComponent>("STOP", "stop",
                                                        std::bind(&GuiScraperMulti::finish, this)));

    mButtonGrid = makeButtonGrid(buttons);
    mGrid.setEntry(mButtonGrid, glm::ivec2 {0, 5}, true, false, glm::ivec2 {2, 1});

    // Limit the width of the GUI on ultrawide monitors. The 1.778 aspect ratio value is
    // the 16:9 reference.
    float aspectValue = 1.778f / Renderer::getScreenAspectRatio();
    float width = glm::clamp(0.95f * aspectValue, 0.70f, 0.95f) * Renderer::getScreenWidth();

    float height = (mTitle->getFont()->getLetterHeight() + Renderer::getScreenHeight() * 0.0637f) +
                   mSystem->getFont()->getLetterHeight() +
                   mSubtitle->getFont()->getHeight() * 1.75f + mButtonGrid->getSize().y +
                   Font::get(FONT_SIZE_MEDIUM)->getHeight() * 7.0f;

    // TODO: Temporary hack, see below.
    height -= 7.0f * Renderer::getScreenHeightModifier();

    setSize(width, height);
    setPosition((Renderer::getScreenWidth() - mSize.x) / 2.0f,
                (Renderer::getScreenHeight() - mSize.y) / 2.0f);

    doNextSearch();
}

GuiScraperMulti::~GuiScraperMulti()
{
    if (mTotalSuccessful > 0 || mSearchComp->getSavedNewMedia()) {
        // Sort all systems to possibly update their view style from Basic to Detailed or Video.
        for (auto it = SystemData::sSystemVector.cbegin(); // Line break.
             it != SystemData::sSystemVector.cend(); ++it) {
            (*it)->sortSystem();
        }
    }
}

void GuiScraperMulti::onSizeChanged()
{
    mGrid.setRowHeightPerc(
        0, (mTitle->getFont()->getLetterHeight() + Renderer::getScreenHeight() * 0.0637f) /
               mSize.y / 2.0f);
    mGrid.setRowHeightPerc(
        1, (mTitle->getFont()->getLetterHeight() + Renderer::getScreenHeight() * 0.0637f) /
               mSize.y / 2.0f);
    mGrid.setRowHeightPerc(2, (mSystem->getFont()->getLetterHeight()) / mSize.y, false);
    mGrid.setRowHeightPerc(3, mSubtitle->getFont()->getHeight() * 1.75f / mSize.y, false);
    mGrid.setRowHeightPerc(4, ((Font::get(FONT_SIZE_MEDIUM)->getHeight() * 7.0f)) / mSize.y, false);

    // TODO: Replace this temporary hack with a proper solution. There is some kind of rounding
    // issue somewhere that causes a small alignment error. This code partly compensates for this
    // at higher resolutions than 1920x1080.
    if (Renderer::getScreenHeightModifier() > 1.0f)
        mSize.y -= 3.0f * Renderer::getScreenHeightModifier();

    mGrid.setColWidthPerc(1, 0.04f);

    mGrid.setSize(mSize);
    mBackground.fitTo(mSize, glm::vec3 {}, glm::vec2 {-32.0f, -32.0f});
}

void GuiScraperMulti::doNextSearch()
{
    if (mSearchQueue.empty()) {
        finish();
        return;
    }

    // Update title.
    std::stringstream ss;
    mSystem->setText(Utils::String::toUpper(mSearchQueue.front().system->getFullName()));

    std::string scrapeName;

    if (Settings::getInstance()->getBool("ScraperSearchMetadataName")) {
        scrapeName = mSearchQueue.front().game->getName();
    }
    else {
        if (mSearchQueue.front().game->isArcadeGame() &&
            Settings::getInstance()->getString("Scraper") == "thegamesdb")
            scrapeName =
                Utils::FileSystem::getFileName(mSearchQueue.front().game->getPath()) + " (" +
                MameNames::getInstance().getCleanName(mSearchQueue.front().game->getCleanName()) +
                ")";
        else
            scrapeName = Utils::FileSystem::getFileName(mSearchQueue.front().game->getPath());
    }

    mScrollUp->setOpacity(0.0f);
    mScrollDown->setOpacity(0.0f);
    mResultList->resetScrollIndicatorStatus();

    // Extract possible subfolders from the path.
    std::string folderPath =
        Utils::String::replace(Utils::FileSystem::getParent(mSearchQueue.front().game->getPath()),
                               mSearchQueue.front().system->getSystemEnvData()->mStartPath, "");

    if (folderPath.size() >= 2) {
        folderPath.erase(0, 1);
#if defined(_WIN64)
        folderPath.push_back('\\');
        folderPath = Utils::String::replace(folderPath, "/", "\\");
#else
        folderPath.push_back('/');
#endif
    }

    // Update subtitle.
    ss.str("");
    ss << "GAME " << (mCurrentGame + 1) << " OF " << mTotalGames << " - " << folderPath
       << scrapeName
       << ((mSearchQueue.front().game->getType() == FOLDER) ? "  " + ViewController::FOLDER_CHAR :
                                                              "");
    mSubtitle->setText(ss.str());

    mSearchComp->search(mSearchQueue.front());
}

void GuiScraperMulti::acceptResult(const ScraperSearchResult& result)
{
    ScraperSearchParams& search = mSearchQueue.front();

    search.system->getIndex()->removeFromIndex(search.game);

    GuiScraperSearch::saveMetadata(result, search.game->metadata, search.game);
    GamelistFileParser::updateGamelist(search.system);

    search.system->getIndex()->addToIndex(search.game);

    mSearchQueue.pop();
    ++mCurrentGame;
    ++mTotalSuccessful;
    CollectionSystemsManager::getInstance()->refreshCollectionSystems(search.game);
    doNextSearch();
}

void GuiScraperMulti::skip()
{
    mSearchQueue.pop();
    ++mCurrentGame;
    ++mTotalSkipped;
    mSearchComp->decreaseScrapeCount();
    mSearchComp->unsetRefinedSearch();
    doNextSearch();
}

void GuiScraperMulti::finish()
{
    std::stringstream ss;
    if (mTotalSuccessful == 0) {
        ss << "NO GAMES WERE SCRAPED";
    }
    else {
        ss << mTotalSuccessful << " GAME" << ((mTotalSuccessful > 1) ? "S" : "")
           << " SUCCESSFULLY SCRAPED";

        if (mTotalSkipped > 0)
            ss << "\n"
               << mTotalSkipped << " GAME" << ((mTotalSkipped > 1) ? "S" : "") << " SKIPPED";
    }

    mWindow->pushGui(new GuiMsgBox(getHelpStyle(), ss.str(), "OK", [&] {
        mIsProcessing = false;
        delete this;
    }));
}

std::vector<HelpPrompt> GuiScraperMulti::getHelpPrompts()
{
    std::vector<HelpPrompt> prompts = mGrid.getHelpPrompts();
    return prompts;
}

HelpStyle GuiScraperMulti::getHelpStyle()
{
    HelpStyle style = HelpStyle();
    style.applyTheme(ViewController::getInstance()->getState().getSystem()->getTheme(), "system");
    return style;
}