{% extends "base.html" %}
{% block title %}{{ '编辑' if postcard else '新建' }}明信片 - Postcard Manager{% endblock %}
{% block content %}
<div class="section-header">
    <h1>{{ '编辑' if postcard else '新建' }}明信片</h1>
</div>
<form method="post" action="{{ '/postcards/%d/edit' % postcard.id if postcard else '/profiles/%d/postcards' % profile.id }}" class="form-card">
    <label>编号 * <span style="font-weight:400;color:var(--text-muted);font-size:.8rem">格式：AB-1234567</span></label>
    <input type="text" name="card_number" value="{{ postcard.card_number if postcard else '' }}" required pattern="[A-Za-z]{2}-\d{7}" title="两个字母 + 短横线 + 7位数字（如 AB-1234567）">

    <label>状态 *</label>
    <select name="status" id="status-select" onchange="toggleFields()" required>
        <option value="sent" {% if postcard and postcard.status=='sent' %}selected{% endif %}>已寄出</option>
        <option value="delivered" {% if postcard and postcard.status=='delivered' %}selected{% endif %}>已送达</option>
        <option value="received" {% if postcard and postcard.status=='received' %}selected{% endif %}>已收到</option>
    </select>

    <div id="fields-sent-delivered">
        <label>收件人 *</label>
        <input type="text" name="recipient_name" value="{{ postcard.recipient_name if postcard else '' }}" required>
        <label>国家/地区 *</label>
        <input type="text" name="country" value="{{ postcard.country if postcard else '' }}" required pattern="[A-Z]{2}" title="两个大写字母（如 JP、US）" maxlength="2" style="width:80px;text-transform:uppercase">
        <label>寄出时间 *</label>
        <input type="date" name="send_time" value="{{ postcard.send_time.strftime('%Y-%m-%d') if postcard and postcard.send_time else '' }}" required>
        <label>到达时间 *</label>
        <input type="date" name="arrival_time" value="{{ postcard.arrival_time.strftime('%Y-%m-%d') if postcard and postcard.arrival_time else '' }}" required>
    </div>

    <div id="fields-received" style="display:none">
        <label>发件人 *</label>
        <input type="text" name="sender_name" value="{{ postcard.sender_name if postcard else '' }}" required>
        <label>收到时间 *</label>
        <input type="date" name="receive_time" value="{{ postcard.receive_time.strftime('%Y-%m-%d') if postcard and postcard.receive_time else '' }}" required>
    </div>

    <div class="form-actions">
        <button type="submit" class="btn btn-primary">保存</button>
        <a href="/profiles/{{ profile.id }}/postcards" class="btn">取消</a>
    </div>
</form>
<script>
function toggleFields() {
    var s = document.getElementById('status-select').value;
    var sd = document.getElementById('fields-sent-delivered');
    var rc = document.getElementById('fields-received');
    sd.style.display = (s === 'received') ? 'none' : '';
    rc.style.display = (s === 'received') ? '' : 'none';
}
toggleFields();
</script>
{% endblock %}