// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial
#include "Globals.h"
#include <platform/platform.h>

namespace {
const uint16_t maxTimeout = 5000;
const uint16_t minTimeout = 1000;
const uint16_t interval = 500;
const uint8_t minTries = 1;
const uint8_t maxTries = 4;
} // namespace

// For the game we use a random list of countries sorted by their total size in square kilometers
static const char *countries[] = {"Vatican City", "Monaco",      "Liechtenstein", "Malta",      "Andorra",
                                  "Singapore",    "Tonga",       "Mauritius",     "Luxembourg", "Hong Kong",
                                  "Samoa",        "Lebanon",     "Kosovo",        "Jamaica",    "Qatar",
                                  "Slovenia",     "Israel",      "Haiti",         "Albania",    "Belgium",
                                  "Taiwan",       "Switzerland", "Netherlands",   "Denmark",    "Costa Rica",
                                  "Croatia",      "Ireland",     "Austria",       "Portugal",   "South Korea",
                                  "Cuba",         "Bulgaria",    "Greece",        "Romania",    "United Kingdom",
                                  "New Zealand",  "Italy",       "Poland",        "Finland",    "Germany",
                                  "Japan",        "Norway",      "Sweden",        "Spain",      "Thailand",
                                  "Kenya",        "France",      "Turkey",        "Mexico",     "Argentina",
                                  "Australia",    "Brazil",      "United States", "China",      "Canada",
                                  "Russia"};
static const int numCountries = sizeof(countries) / sizeof(*countries);

Globals::Globals()
    : m_startNumber(0)
    , m_currentNumber(0)
{
    time.setValue(3000);
    tries.setValue(3);

    currentGameMode.setValue(GameMode::Numbers);
    score.setValue(0);
    fails.setValue(0);

    useSmallTouchAreas.setValue(false);
    showTouchAreas.setValue(false);
    useViewAnimations.setValue(false);
}

void Globals::increaseTime()
{
    if (time.value() < maxTimeout) {
        time.setValue(time.value() + interval);
    }
}

void Globals::decreaseTime()
{
    if (time.value() > minTimeout) {
        time.setValue(time.value() - interval);
    }
}

void Globals::increaseTries()
{
    if (tries.value() < maxTries) {
        tries.setValue(tries.value() + 1);
    }
}

void Globals::decreaseTries()
{
    if (tries.value() > minTries) {
        tries.setValue(tries.value() - 1);
    }
}

void Globals::switchGameMode()
{
    initGameData();
    GameMode newMode = isNumberMode() ? GameMode::Countries : GameMode::Numbers;
    currentGameMode.setValue(newMode);
}

bool Globals::isNumberMode()
{
    return (currentGameMode.value() == GameMode::Numbers);
}

void Globals::requestNewValue()
{
    m_currentNumber = generateNewNumber();
    gameCurrentNumber.setValue(m_currentNumber);
    gameCurrentCountry.setValue(countries[m_currentNumber]);
}

void Globals::initGameData()
{
    m_startNumber = generateRandomNumber();
    gameStartNumber.setValue(m_startNumber);
    gameStartCountry.setValue(countries[m_startNumber]);
    score.setValue(0);
    fails.setValue(0);
}

void Globals::updateScore(bool correctGuess)
{
    if (correctGuess) {
        score.setValue(score.value() + 1);
    } else {
        addFail();
    }
}

void Globals::checkAnswer(bool guessedGreater)
{
    if (guessedGreater) {
        updateScore(m_currentNumber > m_startNumber);
    } else {
        updateScore(m_currentNumber < m_startNumber);
    }
}

void Globals::addFail()
{
    fails.setValue(fails.value() + 1);
}

int Globals::generateRandomNumber() const
{
    const int randomNumber = static_cast<int>(static_cast<double>(std::numeric_limits<int>::max())
                                              * Qul::Platform::getPlatformInstance()->rand());
    return 1 + (randomNumber % (numCountries - 3));
}

int Globals::generateNewNumber() const
{
    int newNumber = generateRandomNumber();
    while (newNumber == m_currentNumber || newNumber == m_startNumber) {
        newNumber = generateRandomNumber();
    }

    return newNumber;
}