<?php
session_start();
require_once 'database.php';

// Fetch configuration from the database
$stmt = $db->query('SELECT * FROM configuration');
$config = $stmt->fetchAll(PDO::FETCH_KEY_PAIR);

if (!isset($_SESSION['scores'])) {
    $_SESSION['scores'] = [
        'flames' => 0,
        'desolation' => 0,
        'relocation' => 0,
    ];
}

$action = $_GET['action'] ?? '';

if ($action === 'roll_dice') {
    $event = roll_dice($config);
    $gameState = check_game_state($config);
    if ($gameState !== 'ongoing') {
        log_game($gameState);
    }
    echo json_encode([
        'scores' => $_SESSION['scores'],
        'event' => $event,
        'gameState' => $gameState,
    ]);
} elseif ($action === 'assassinate') {
    $assassinationResult = assassinate($config);
    if ($assassinationResult['gameState'] !== 'ongoing') {
        log_game($assassinationResult['gameState']);
    }
    echo json_encode([
        'event' => $assassinationResult['event'],
        'gameState' => $assassinationResult['gameState'],
    ]);
} elseif ($action === 'reset_game') {
    $_SESSION['scores'] = [
        'flames' => 0,
        'desolation' => 0,
        'relocation' => 0,
    ];
    echo json_encode([
        'scores' => $_SESSION['scores'],
    ]);
}

function roll_dice($config) {
    $roll = rand(1, 6);
    $event = '';

    if ($roll <= 3) {
        $event = 'In the Imperial Palace: ' . imperial_palace_event($config);
    } elseif ($roll <= 5) {
        $event = 'Relative Unrest: ' . relative_unrest_event($config);
    } else {
        $_SESSION['scores']['flames']++;
        $event = 'The fires spread. +1 Flames.';
    }
    return $event;
}

function imperial_palace_event($config) {
    $roll = rand(1, 6);
    $event = '';
    switch ($roll) {
        case 1:
            $_SESSION['scores']['flames']++;
            $event = $config['imperial_palace_event_1'];
            break;
        case 2:
            $_SESSION['scores']['desolation']++;
            $_SESSION['scores']['relocation']++;
            $event = $config['imperial_palace_event_2'];
            break;
        case 3:
            $_SESSION['scores']['relocation']++;
            $event = $config['imperial_palace_event_3'];
            break;
        case 4:
            $_SESSION['scores']['desolation']++;
            $event = $config['imperial_palace_event_4'];
            break;
        case 5:
            $_SESSION['scores']['flames']++;
            $_SESSION['scores']['relocation']++;
            $event = $config['imperial_palace_event_5'];
            break;
        case 6:
            $_SESSION['scores']['flames']++;
            $event = $config['imperial_palace_event_6'];
            break;
    }
    return $event;
}

function relative_unrest_event($config) {
    $roll = rand(1, 6);
    $event = '';
    switch ($roll) {
        case 1:
            $_SESSION['scores']['relocation']++;
            $event = $config['relative_unrest_event_1'];
            break;
        case 2:
            $_SESSION['scores']['desolation']++;
            $event = $config['relative_unrest_event_2'];
            break;
        case 3:
            $_SESSION['scores']['relocation']++;
            $event = $config['relative_unrest_event_3'];
            break;
        case 4:
            $_SESSION['scores']['desolation']++;
            $_SESSION['scores']['flames']++;
            $event = $config['relative_unrest_event_4'];
            break;
        case 5:
            $_SESSION['scores']['desolation']++;
            $event = $config['relative_unrest_event_5'];
            break;
        case 6:
            $_SESSION['scores']['flames']++;
            $event = $config['relative_unrest_event_6'];
            break;
    }
    return $event;
}

function assassinate($config) {
    $desolation = $_SESSION['scores']['desolation'];
    $total = 0;
    for ($i = 0; $i < $desolation; $i++) {
        $total += rand(1, 6);
    }

    if ($total >= $config['assassination_win']) {
        return ['event' => 'You have assassinated the emperor! You die a martyr.', 'gameState' => 'win_assassination'];
    } else {
        return ['event' => 'Your attempt to assassinate the emperor has failed. You are executed.', 'gameState' => 'loss_assassination'];
    }
}

function check_game_state($config) {
    if ($_SESSION['scores']['flames'] >= $config['flames_win']) {
        return 'loss_flames';
    }
    if ($_SESSION['scores']['desolation'] >= $config['desolation_win']) {
        return 'loss_desolation';
    }
    if ($_SESSION['scores']['relocation'] >= $config['relocation_win']) {
        return 'win';
    }
    return 'ongoing';
}

function log_game($end_condition) {
    global $db;
    $stmt = $db->prepare('INSERT INTO game_logs (date_played, flames_score, desolation_score, relocation_score, end_condition) VALUES (?, ?, ?, ?, ?)');
    $stmt->execute([date('Y-m-d H:i:s'), $_SESSION['scores']['flames'], $_SESSION['scores']['desolation'], $_SESSION['scores']['relocation'], $end_condition]);
}