{% extends "base.html" %}

{% block title %}Uitlenen{% endblock %}
{% block page_title %}Toestel uitdelen{% endblock %}
{% block main_class %}medium{% endblock %}

{% block head %}
<script src="https://unpkg.com/html5-qrcode" type="text/javascript"></script>
{% endblock %}

{% block extra_css %}
<style>
    #reader { width: 100%; margin-top: 14px; border: 3px solid var(--primary-color); border-radius: var(--radius); overflow: hidden; display: none; background: #000; }
    #reader video { width: 100% !important; height: auto !important; object-fit: cover !important; }
    #scan-result-container { display: none; margin-top: 14px; padding: 14px; border: 2px dashed var(--primary-color); border-radius: var(--radius); background: var(--primary-light); }
    #scannedText { font-size: 1.2em; color: var(--primary-color); word-break: break-all; }
    .scan-actions { display: flex; gap: 8px; margin-top: 10px; }
    .scan-actions button { flex: 1; }
</style>
{% endblock %}

{% block content %}
<div class="split">
    <div class="card">
        <h2 class="card-title">Toestelgegevens</h2>
        <form method="POST" action="{{ url_for('devices.uitdelen_submit') }}" onsubmit="showLoader()">
            <div class="field zoek-wrap">
                <label for="internnummer">Internnummer</label>
                <input type="text" id="internnummer" name="internnummer" required autocomplete="off"
                       placeholder="Zoek op naam of scan/typ internnummer..." role="combobox"
                       value="{{ request.args.get('internnummer', '') }}"
                       aria-autocomplete="list" aria-controls="leerlingSuggesties" aria-expanded="false">
                <ul class="suggesties" id="leerlingSuggesties" role="listbox"></ul>
                {% if request.args.get('naam') %}<p class="field-hint">👤 {{ request.args.get('naam') }}</p>{% endif %}
            </div>
            <div class="field zoek-wrap">
                <label for="serienummer">Toestelnummer</label>
                <input type="text" id="serienummer" name="serienummer" required autocomplete="off"
                       placeholder="Zoek of scan toestelnummer (of serienummer)..." role="combobox"
                       {{ 'autofocus' if request.args.get('internnummer') }}
                       aria-autocomplete="list" aria-controls="toestelSuggesties" aria-expanded="false">
                <ul class="suggesties" id="toestelSuggesties" role="listbox"></ul>
            </div>

            <button class="btn-block btn-lg" type="submit" name="action" value="check">✅ Ingeven</button>
            <button class="btn-block btn-warning" type="submit" name="action" value="no_check">Zonder nakijken</button>
        </form>
    </div>

    <div class="card order-first-mobile text-center">
        <h2 class="card-title">📷 Scanner</h2>
        <button type="button" class="btn-block btn-secondary" id="btn-toggle-scan">📷 Open camera-scanner</button>
        {# Zonder https geeft de browser geen live camera: dan een foto nemen met de camera-app en de code daaruit lezen #}
        <label class="btn btn-block btn-secondary" id="btn-foto" style="display:none">
            📷 Foto van de code nemen
            <input type="file" id="foto-input" accept="image/*" capture="environment" hidden>
        </label>
        <p class="muted small" id="scan-hint" style="display:none;margin:8px 0 0"></p>

        <div id="reader"></div>

        <div id="scan-result-container">
            <div class="muted small">Gescande waarde</div>
            <strong id="scannedText">-</strong>
            <div class="scan-actions">
                <button type="button" class="btn-sm" onclick="copyToField('internnummer')">→ Internnr.</button>
                <button type="button" class="btn-sm" onclick="copyToField('serienummer')">→ Toestelnr.</button>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block scripts %}
{% set toestel_voorkeur = 'beschikbaar' %}{% include '_toestel_zoekveld.html' %}
<script>
    let html5QrCode;
    const scanBtn = document.getElementById('btn-toggle-scan');
    const readerDiv = document.getElementById('reader');
    const resultContainer = document.getElementById('scan-result-container');
    const scannedTextElement = document.getElementById('scannedText');

    scanBtn.addEventListener('click', () => {
        if (!html5QrCode || !html5QrCode.isScanning) startScanner(); else stopScanner();
    });

    // Live camera kan enkel via https (of localhost). Anders: foto nemen en de code uit de foto lezen.
    const fotoBtn = document.getElementById('btn-foto');
    const fotoInput = document.getElementById('foto-input');
    const scanHint = document.getElementById('scan-hint');
    function fotoModus(reden) {
        scanBtn.style.display = 'none';
        fotoBtn.style.display = '';
        scanHint.textContent = reden;
        scanHint.style.display = '';
    }
    if (!window.isSecureContext || !(navigator.mediaDevices && navigator.mediaDevices.getUserMedia)) {
        fotoModus('Neem een scherpe foto van de streepjes- of QR-code, van dichtbij en recht ervoor.');
    }
    fotoInput.addEventListener('change', () => {
        const bestand = fotoInput.files && fotoInput.files[0];
        if (!bestand) return;
        scanHint.textContent = 'Code zoeken in de foto...';
        scanHint.style.display = '';
        const lezer = new Html5Qrcode("reader");
        lezer.scanFile(bestand, false)
            .then(tekst => {
                scannedTextElement.textContent = tekst;
                resultContainer.style.display = 'block';
                scanHint.textContent = 'Code gevonden. Kies hieronder in welk veld ze moet komen.';
            })
            .catch(() => { scanHint.textContent = 'Geen code gevonden in de foto. Probeer opnieuw, van dichterbij en zonder schittering.'; })
            .finally(() => { fotoInput.value = ''; lezer.clear(); });
    });

    function startScanner() {
        readerDiv.style.display = 'block';
        scanBtn.textContent = '❌ Stop scanner';
        scanBtn.classList.replace('btn-secondary', 'btn-danger');

        html5QrCode = new Html5Qrcode("reader");
        const config = { fps: 20, qrbox: { width: 300, height: 150 }, aspectRatio: 1.777778 };

        html5QrCode.start(
            { facingMode: "environment" },
            config,
            (decodedText) => {
                scannedTextElement.textContent = decodedText;
                resultContainer.style.display = 'block';
            },
            () => {}
        ).catch((err) => {
            console.error(err);
            readerDiv.style.display = 'none';
            scanBtn.textContent = '📷 Open camera-scanner';
            scanBtn.classList.replace('btn-danger', 'btn-secondary');
            fotoModus('De live camera kon niet starten. Neem in de plaats een foto van de code.');
        });
    }

    function stopScanner() {
        if (html5QrCode) {
            html5QrCode.stop().then(() => {
                readerDiv.style.display = 'none';
                scanBtn.textContent = '📷 Open camera-scanner';
                scanBtn.classList.replace('btn-danger', 'btn-secondary');
            }).catch(err => console.error(err));
        }
    }

    function copyToField(fieldId) {
        const input = document.getElementById(fieldId);
        input.value = scannedTextElement.textContent;
        input.style.backgroundColor = '#d1fae5';
        setTimeout(() => input.style.backgroundColor = '', 500);
    }
</script>
{% endblock %}