LevensLoop/print.php at Master · PCPal-nl/LevensLoop · GitHub

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<?php
/**
 * file: print.php
 *
 * Printer-friendly view of the timeline.
 *
 * Generates a simplified, printable list of all events and relations for the logged-in user.
 */

require_once 'auth.php';
require_once 'config.php';
require_once 'language_loader.php';
require_once 'src/SecurityService.php';

$sec = new SecurityService($pdo, ENCRYPTION_KEY);

// Haal de ingelogde gebruiker's ID op uit de sessie
$user_id = $_SESSION['user_id'];

// --- 1. Haal gebruikersinformatie op ---
$user_stmt = $pdo->prepare("SELECT full_name, date_of_birth FROM users WHERE id = ?");
$user_stmt->execute([$user_id]);
$user = $user_stmt->fetch();
$user_full_name = $sec->decrypt($user['full_name']) ?? $lang['unknown_user'];
$decrypted_dob = $sec->decrypt($user['date_of_birth']);
$user_dob_year = $decrypted_dob ? (int)date('Y', strtotime($decrypted_dob)) : 1982;


// --- 2. Data ophalen voor Gebeurtenissen (specifiek voor de ingelogde user) ---
$stmt = $pdo->prepare("SELECT * FROM gebeurtenissen WHERE user_id = ? ORDER BY datum ASC");
$stmt->execute([$user_id]);
$events = $stmt->fetchAll();

// --- 3. Data ophalen voor Verbanden (specifiek voor de ingelogde user) ---
$stmt_links = $pdo->prepare("SELECT * FROM verbanden WHERE user_id = ?");
$stmt_links->execute([$user_id]);
$links = $stmt_links->fetchAll();


// Helper functie om datum naar decimaal jaar om te zetten
function dateToDecimalYear($date) {
    $timestamp = strtotime($date);
    $year = (int)date('Y', $timestamp);
    $dayOfYear = (int)date('z', $timestamp);
    $daysInYear = (int)date('L', $timestamp) ? 366 : 365;
    return $year + ($dayOfYear / $daysInYear);
}

// --- 4. Raw data array bouwen EN een map maken ---
$rawData = [];
$counter = 1;
$db_id_to_chart_data = []; // Map [db_id] => [chart_data_point]

foreach ($events as $event) {
    $decimalYear = dateToDecimalYear($event['datum']);
    $score = (int)$event['score'];
    $vid = str_pad($counter, 3, '0', STR_PAD_LEFT);

    $dataPoint = [
        'year' => $decimalYear,
        'score' => $score,
        'title' => htmlspecialchars($sec->decrypt($event['titel'])),
        'details' => nl2br(htmlspecialchars($sec->decrypt($event['details']))),
        'type' => ($score >= 0) ? 'pos' : 'neg',
        'id' => $vid, // Visuele ID
        'real_date' => date('d-m-Y', strtotime($event['datum'])),
        'db_id' => (int)$event['id'] // ECHTE DATABASE ID
    ];

    $rawData[] = $dataPoint;

    // Sla de mapping op van de database ID naar het volledige data-object
    $db_id_to_chart_data[$event['id']] = $dataPoint;

    $counter++;
}

// --- 5. Verbanden (links) data voorbereiden ---
$linksData = [];
foreach ($links as $link) {
    $id_begin = $link['gebeurtenis_id_begin'];
    $id_eind = $link['gebeurtenis_id_eind'];

    // Controleer of beide punten (nog) bestaan in onze data
    if (isset($db_id_to_chart_data[$id_begin]) && isset($db_id_to_chart_data[$id_eind])) {
        $point_begin = $db_id_to_chart_data[$id_begin];
        $point_eind = $db_id_to_chart_data[$id_eind];

        $linksData[] = [
            'begin' => ['x' => $point_begin['year'], 'y' => $point_begin['score']],
            'end'   => ['x' => $point_eind['year'], 'y' => $point_eind['score']],
            'desc'  => htmlspecialchars($link['link_desc']),
            'vid_begin' => $point_begin['id'], // Visuele ID voor tooltip
            'vid_eind'  => $point_eind['id']  // Visuele ID voor tooltip
        ];
    }
}


// Bepaal start en eindjaar voor de grafiek as
$startYear = $user_dob_year; // Gebruik geboortejaar van gebruiker
$endYear = (int)date('Y') + 1;
if (!empty($rawData)) {
    $minYearInData = floor(min(array_column($rawData, 'year')));
    // De start van de grafiek is altijd het geboortejaar, tenzij er data van daarvoor is.
    $startYear = min($startYear, $minYearInData);
    $maxYearInData = ceil(max(array_column($rawData, 'year')));
    $endYear = max($endYear, $maxYearInData);
}

?>
<!DOCTYPE html>
<html lang="nl">
<head>
    <meta charset="UTF-8">
    <title><?php echo sprintf($lang['page_title_print'], htmlspecialchars($user_full_name)); ?></title>
    <link rel="apple-touch-icon" sizes="180x180" href="apple-touch-icon.png">
    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
    <link rel="icon" type="image/png" sizes="16x16" href="favicon-16x16.png">
    <link rel="manifest" href="site.webmanifest">
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels@2.0.0"></script>
    <style>
        body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background-color: #fff; color: #111827; }
        .print-container { max-width: 1600px; margin: 2rem auto; padding: 2rem; }
        h1 { font-size: 2.25rem; font-weight: 700; text-align: center; margin-bottom: 0.5rem; color: #111827; }
        p.subtitle { text-align: center; font-size: 1.125rem; color: #6b7280; margin-bottom: 3rem; }
        #timelineChart { max-height: 70vh; }
        .events-list { margin-top: 4rem; }
        .event-item { page-break-inside: avoid; border-left: 3px solid #d1d5db; padding: 1rem 1.5rem; margin-bottom: 1.5rem; }
        .event-item.positive { border-left-color: #16a34a; }
        .event-item.negative { border-left-color: #dc2626; }
        .event-header { display: flex; align-items: baseline; justify-content: space-between; }
        .event-title { font-size: 1.25rem; font-weight: 600; color: #111827; }
        .event-meta { font-size: 0.9rem; font-weight: 500; color: #4b5563; }
        .event-details { margin-top: 0.5rem; color: #374151; line-height: 1.6; }
        .event-id { font-weight: 700; color: #6b7280; margin-right: 0.75rem; font-size: 1rem; }
        @media print {
            body { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
            .print-container { margin: 0; padding: 0; max-width: none; }
            h1, p.subtitle { margin-bottom: 1.5rem; }
            .events-list { margin-top: 2rem; }
        }
    </style>
</head>
<body>
    <div class="print-container">
        <h1><?php echo sprintf($lang['index_heading'], htmlspecialchars($user_full_name)); ?></h1>
        <p class="subtitle"><?php echo $lang['print_subtitle']; ?></p>

        <div style="width: 100%; margin: 0 auto;">
            <canvas id="timelineChart"></canvas>
        </div>

        <div class="events-list">
            <?php foreach ($rawData as $event): ?>
                <div class="event-item <?php echo $event['score'] >= 0 ? 'positive' : 'negative'; ?>">
                    <div class="event-header">
                        <h2 class="event-title">
                            <span class="event-id"><?php echo $event['id']; ?>.</span>
                            <?php echo $event['title']; ?>
                        </h2>
                        <span class="event-meta">
                            <?php echo $event['real_date']; ?> | <?php echo $lang['print_score']; ?>: <?php echo $event['score']; ?>
                        </span>
                    </div>
                    <p class="event-details"><?php echo $event['details']; ?></p>
                </div>
            <?php endforeach; ?>
        </div>
    </div>

    <script>
        const rawData = <?php echo json_encode($rawData); ?>;
        const linksData = <?php echo json_encode($linksData); ?>;
        const startYear = <?php echo $startYear; ?>;
        const endYear = <?php echo $endYear; ?>;

        const posBandData = [];
        const negBandData = [];
        const netTrendData = [];

        // Trendberekeningen
        for (let year = startYear; year <= endYear; year += 0.25) {
            const eventsUntilNow = rawData.filter(d => d.year <= year);
            let currentPosScoreSum = 0, currentNegScoreSum = 0, netScoreSum = 0;
            eventsUntilNow.forEach(event => {
                if (event.score > 0) {
                    currentPosScoreSum += event.score;
                    netScoreSum += event.score;
                } else {
                    currentNegScoreSum += Math.abs(event.score);
                    netScoreSum += event.score;
                }
            });
            const yearsPassed = Math.max(1, year - startYear);
            posBandData.push({ x: year, y: (currentPosScoreSum / yearsPassed) });
            negBandData.push({ x: year, y: -(currentNegScoreSum / yearsPassed) });
            netTrendData.push({ x: year, y: (netScoreSum / yearsPassed) });
        }

        const POSITIVE_COLOR = 'rgb(22, 163, 74)';
        const NEGATIVE_COLOR = 'rgb(220, 38, 38)';
        const LINE_COLOR = 'rgba(107, 114, 128, 0.8)';
        const POS_FILL_COLOR = 'rgba(74, 222, 128, 0.2)';
        const NEG_FILL_COLOR = 'rgba(248, 113, 113, 0.2)';

        // Plugin voor verbandenlijnen
        const linksPlugin = {
            id: 'drawLinks',
            beforeDatasetsDraw: (chart) => {
                const ctx = chart.ctx;
                const xAxis = chart.scales.x;
                const yAxis = chart.scales.y;
                ctx.save();
                ctx.strokeStyle = 'rgba(59, 130, 246, 0.8)';
                ctx.lineWidth = 1.5;
                ctx.setLineDash([4, 4]);
                linksData.forEach(link => {
                    ctx.beginPath();
                    ctx.moveTo(xAxis.getPixelForValue(link.begin.x), yAxis.getPixelForValue(link.begin.y));
                    ctx.lineTo(xAxis.getPixelForValue(link.end.x), yAxis.getPixelForValue(link.end.y));
                    ctx.stroke();
                });
                ctx.restore();
            }
        };

        Chart.register(linksPlugin, ChartDataLabels);

        const ctx = document.getElementById('timelineChart').getContext('2d');
        const chart = new Chart(ctx, {
            type: 'line',
            data: {
                datasets: [
                    { label: '<?php echo $lang['index_chart_label_positive']; ?>', data: posBandData, borderColor: 'transparent', backgroundColor: POS_FILL_COLOR, fill: 'origin', pointRadius: 0, tension: 0.4 },
                    { label: '<?php echo $lang['index_chart_label_negative']; ?>', data: negBandData, borderColor: 'transparent', backgroundColor: NEG_FILL_COLOR, fill: 'origin', pointRadius: 0, tension: 0.4 },
                    {
                        label: '<?php echo $lang['index_chart_label_net']; ?>', data: netTrendData,
                        segment: { borderColor: ctx => ctx.p0.parsed.y >= 0 ? POSITIVE_COLOR : NEGATIVE_COLOR },
                        borderWidth: 2.5, pointRadius: 0, tension: 0.4, fill: false
                    },
                    {
                        label: '<?php echo $lang['index_chart_label_events']; ?>',
                        data: rawData.map(d => ({ x: d.year, y: d.score, raw: d })),
                        borderColor: LINE_COLOR, borderWidth: 1.5, tension: 0.1,
                        pointBackgroundColor: rawData.map(d => d.score >= 0 ? POSITIVE_COLOR : NEGATIVE_COLOR),
                        pointBorderColor: '#fff', pointBorderWidth: 1, pointRadius: 5
                    }
                ]
            },
            options: {
                responsive: true, maintainAspectRatio: true,
                scales: {
                    x: {
                        type: 'linear', min: startYear, max: endYear,
                        ticks: { stepSize: 2, font: { size: 10 } },
                        grid: { color: '#e5e7eb' },
                        title: { display: true, text: '<?php echo $lang['index_chart_axis_year']; ?>', font: { weight: 'bold' } }
                    },
                    y: {
                        min: -11, max: 11, ticks: { stepSize: 2 },
                        grid: { color: ctx => ctx.tick.value === 0 ? '#9ca3af' : '#e5e7eb', lineWidth: ctx => ctx.tick.value === 0 ? 1.5 : 1 },
                        title: { display: true, text: '<?php echo $lang['index_chart_axis_impact']; ?>', font: { weight: 'bold' } }
                    }
                },
                plugins: {
                    legend: { display: false },
                    tooltip: { enabled: false },
                    datalabels: {
                        align: 'top', offset: 4, font: { size: 9, weight: '600' },
                        color: context => context.dataset.data[context.dataIndex].y >= 0 ? '#14532d' : '#991b1b',
                        formatter: (value, context) => context.datasetIndex === 3 ? rawData[context.dataIndex].id : ''
                    }
                },
                animation: {
                    onComplete: () => {
                        window.print();
                    }
                }
            }
        });
    </script>
</body>
</html>