{% extends "base.html" %}
{% block title %}Admin — Sæt{% endblock %}
{% block content %}
<a href="/admin" style="color:var(--text-muted);text-decoration:none;font-size:0.9rem;">&larr; Admin</a>
<h1 style="margin-top:12px;">📁 Sæt</h1>

<div style="display:flex;gap:24px;flex-wrap:wrap;margin:20px 0;">
    <div class="card" style="flex:1;min-width:280px;">
        <h3>Opret sæt</h3>
        <form onsubmit="createSet(event)" style="display:flex;flex-direction:column;gap:10px;margin-top:12px;">
            <select id="set-serie" required>
                <option value="">— Vælg serie —</option>
                {% for s in series %}
                <option value="{{ s.name }}">{{ s.name }}</option>
                {% endfor %}
            </select>
            <input type="text" id="set-code" placeholder="Kode (f.eks. EVS)" required>
            <input type="text" id="set-name" placeholder="Navn (f.eks. Evolving Skies)" required>
            <input type="date" id="set-date" placeholder="Udgivelsesdato">
            <input type="text" id="set-desc" placeholder="Beskrivelse (valgfri)">
            <button class="btn btn-primary">Opret</button>
        </form>
    </div>

    <div class="card" style="flex:1;min-width:280px;">
        <h3>CSV-import</h3>
        <p style="font-size:0.85rem;color:var(--text-muted);margin:8px 0;">
            Kolonner: <code>serie,code,name,release_date,description</code>
            <br><a href="/api/admin/templates/sets.csv" style="color:var(--accent);">Download skabelon</a>
        </p>
        <form onsubmit="importSets(event)" style="display:flex;flex-direction:column;gap:10px;">
            <input type="file" id="sets-csv" accept=".csv" required>
            <button class="btn btn-primary">Importer</button>
        </form>
        <div id="sets-import-result" style="margin-top:8px;"></div>
    </div>
</div>

<h2>Eksisterende sæt</h2>
<table>
    <thead>
        <tr><th>Kode</th><th>Navn</th><th>Serie</th><th>Kort</th><th>Handling</th></tr>
    </thead>
    <tbody id="sets-list">
        {% for s in sets %}
        <tr id="set-{{ s.id }}">
            <td><span class="tag">{{ s.code }}</span></td>
            <td><a href="/admin/cards/{{ s.code }}" style="color:var(--text);">{{ s.name }}</a></td>
            <td>{{ s.serie.name }}</td>
            <td>{{ s.cards|length }}</td>
            <td>
                <a href="/admin/cards/{{ s.code }}" class="btn btn-outline btn-sm">Kort</a>
                <button class="btn btn-danger btn-sm" onclick="deleteSet({{ s.id }})">Slet</button>
            </td>
        </tr>
        {% endfor %}
    </tbody>
</table>

{% if sets|length == 0 %}
<div class="card" style="text-align:center;color:var(--text-muted);margin-top:16px;">
    <p>Ingen sæt endnu.</p>
</div>
{% endif %}

<script>
async function createSet(e) {
    e.preventDefault();
    const serie = document.getElementById('set-serie').value;
    const code = document.getElementById('set-code').value.trim().toUpperCase();
    const name = document.getElementById('set-name').value.trim();
    const date = document.getElementById('set-date').value || null;
    const desc = document.getElementById('set-desc').value.trim() || null;
    if (!serie || !code || !name) return;
    const res = await fetch('/api/admin/series/' + encodeURIComponent(serie) + '/sets', {
        method: 'POST',
        headers: {'Content-Type': 'application/json'},
        body: JSON.stringify({code, name, release_date: date, description: desc})
    });
    const data = await res.json();
    if (data.ok) {
        location.reload();
    } else {
        alert(data.detail || 'Fejl');
    }
}

async function deleteSet(id) {
    if (!confirm('Slet dette sæt og alle dets kort?')) return;
    const res = await fetch('/api/admin/sets/' + id, {method: 'DELETE'});
    const data = await res.json();
    if (data.ok) {
        document.getElementById('set-' + id).remove();
    } else {
        alert('Fejl ved sletning');
    }
}

async function importSets(e) {
    e.preventDefault();
    const file = document.getElementById('sets-csv').files[0];
    if (!file) return;
    const form = new FormData();
    form.append('file', file);
    const res = await fetch('/api/admin/sets/import', {method: 'POST', body: form});
    const data = await res.json();
    const el = document.getElementById('sets-import-result');
    if (data.ok) {
        el.innerHTML = '<p style="color:green;">✓ ' + data.created + ' sæt oprettet</p>';
        if (data.errors.length) {
            el.innerHTML += '<p style="color:var(--accent);">' + data.errors.join('<br>') + '</p>';
        }
        setTimeout(() => location.reload(), 1500);
    } else {
        el.innerHTML = '<p style="color:var(--accent);">Fejl ved import</p>';
    }
}
</script>
{% endblock %}