{% extends "base.html" %}
{% block title %}行情K线 - 国内期货监控系统{% endblock %}
{% block content %}

<div class="card market-card">
    <h2>行情 K 线</h2>
    <form class="market-toolbar" id="market-form" onsubmit="return false;">
        <div class="symbol-wrap market-symbol-wrap">
            <input type="text" class="symbol-input" id="market-symbol-input" placeholder="点击选择主力合约，或输入搜索" autocomplete="off" value="{{ symbol }}">
            <input type="hidden" name="symbol" id="market-symbol-hidden" value="{{ symbol }}">
            <input type="hidden" name="symbol_name" id="market-symbol-name">
            <input type="hidden" name="market_code" id="market-market-code">
            <input type="hidden" name="sina_code" id="market-sina-code">
            <div class="symbol-dropdown"></div>
            <div class="symbol-selected" id="market-symbol-selected"></div>
        </div>
        <div class="market-period-tabs" id="market-period-tabs">
            {% for p in market_periods %}
            <button type="button" class="period-tab{% if p.key == period %} active{% endif %}" data-period="{{ p.key }}">{{ p.label }}</button>
            {% endfor %}
        </div>
        <button type="button" class="btn-primary" id="market-load-btn">查看</button>
    </form>
    <div class="market-quote" id="market-quote">
        <span class="market-quote-name" id="market-quote-name">—</span>
        <span class="market-quote-price" id="market-quote-price">—</span>
        <span class="market-quote-prev text-muted" id="market-quote-prev"></span>
        <span class="market-quote-meta text-muted" id="market-quote-meta"></span>
    </div>
    <div class="market-chart-toolbar">
        <div class="market-chart-options">
            <label class="chart-opt"><input type="checkbox" id="chart-opt-prev-close">昨收线</label>
            <label class="chart-opt"><input type="checkbox" id="chart-opt-ma">均线 21/55</label>
            <label class="chart-opt"><input type="checkbox" id="chart-opt-gap-day">间隔日</label>
        </div>
        <div class="market-chart-zoom">
            <button type="button" class="chart-zoom-btn" id="chart-zoom-in" title="放大">＋</button>
            <button type="button" class="chart-zoom-btn" id="chart-zoom-out" title="缩小">－</button>
            <button type="button" class="chart-zoom-btn chart-zoom-reset" id="chart-zoom-reset">重置</button>
        </div>
        <span class="market-refresh-hint text-muted" id="market-refresh-hint"></span>
    </div>
    <div class="market-chart-wrap" id="market-chart-wrap">
        <div id="market-chart" class="market-chart" aria-label="K线图"></div>
        <div class="market-chart-empty" id="market-chart-empty">请选择合约并点击「查看」</div>
        <div class="market-chart-loading" id="market-chart-loading">连接中…</div>
    </div>
    <p class="hint">数据来源：新浪财经。K 线由后台自动刷新并经 SSE 推送到前端；支持滚轮/拖拽缩放。可视区内自动标注最高/最低价。</p>
</div>

<style>
.market-card{overflow:visible}
.market-card h2{margin-bottom:.75rem}
.market-toolbar{
    display:flex;flex-wrap:wrap;gap:.65rem;align-items:flex-end;
    margin-bottom:.75rem;position:relative;z-index:2;
    min-height:2.5rem;
}
.market-symbol-wrap{flex:1;min-width:200px;max-width:360px;z-index:3}
.market-symbol-wrap .symbol-dropdown{max-height:min(70vh,420px)}
.market-symbol-wrap .symbol-selected{display:none}
.market-period-tabs{display:flex;flex-wrap:wrap;gap:.35rem;align-items:center}
.period-tab{
    padding:.4rem .65rem;border-radius:999px;
    border:1px solid var(--input-border);
    background:var(--toggle-bg);color:var(--text-muted);
    font-size:.78rem;cursor:pointer;width:auto;white-space:nowrap;
}
.period-tab:hover{border-color:var(--accent);color:var(--accent)}
.period-tab.active{
    background:linear-gradient(135deg,var(--accent),var(--accent-2));
    border-color:transparent;color:#fff;
}
#market-load-btn{width:auto;padding:.55rem 1.25rem;font-size:.85rem}
.market-quote{
    display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem 1rem;
    margin-bottom:.75rem;padding:.65rem .85rem;
    background:var(--card-inner);border-radius:10px;border:1px solid var(--card-border);
    min-height:2.75rem;
}
.market-quote-name{font-weight:600;color:var(--text-title)}
.market-quote-price{font-size:1.35rem;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.market-quote-prev{font-size:.78rem}
.market-chart-toolbar{
    display:flex;align-items:center;justify-content:space-between;gap:.75rem;
    margin-bottom:.5rem;flex-wrap:wrap;
    min-height:2rem;
}
.market-chart-options{display:flex;flex-wrap:wrap;gap:.5rem .85rem;align-items:center}
.chart-opt{
    display:flex;align-items:center;gap:.35rem;font-size:.78rem;
    color:var(--text-muted);cursor:pointer;user-select:none;
}
.chart-opt input{width:auto;margin:0;cursor:pointer}
.market-chart-zoom{display:flex;gap:.35rem;align-items:center}
.chart-zoom-btn{
    width:32px;height:32px;padding:0;border-radius:8px;
    border:1px solid var(--input-border);background:var(--toggle-bg);
    color:var(--text-primary);font-size:1rem;line-height:1;cursor:pointer;
}
.chart-zoom-btn:hover{border-color:var(--accent);color:var(--accent)}
.chart-zoom-reset{width:auto;padding:0 .65rem;font-size:.75rem}
.market-refresh-hint{font-size:.72rem}
.market-chart-wrap{
    position:relative;border-radius:12px;border:1px solid var(--card-border);
    background:var(--card-inner);
    height:min(62vh,520px);min-height:360px;
}
.market-chart{width:100%;height:100%}
.market-chart-empty,
.market-chart-loading{
    position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
    color:var(--text-muted);font-size:.9rem;pointer-events:none;
}
.market-chart-loading{display:none}
html[data-theme="light"] .market-chart-loading{background:rgba(244,247,252,.75)}
.market-chart-wrap.has-data .market-chart-empty{display:none}
.market-chart-wrap.loading .market-chart-loading{
    display:flex;background:rgba(10,12,20,.35);
}
html[data-theme="light"] .market-chart-wrap.loading .market-chart-loading{background:rgba(244,247,252,.75)}
.market-chart-wrap.loading .market-chart-empty{display:none}
@media(max-width:767px){
    .market-toolbar{align-items:stretch}
    .market-symbol-wrap{max-width:none}
    .market-period-tabs{order:3;width:100%}
    #market-load-btn{order:4;width:100%}
    .market-chart-wrap{min-height:300px;height:50vh}
    .market-chart-toolbar{flex-direction:column;align-items:stretch}
    .market-chart-options{order:1}
    .market-chart-zoom{order:2}
}
</style>
{% endblock %}

{% block extra_js %}
<script src="https://cdn.jsdelivr.net/npm/echarts@5.5.1/dist/echarts.min.js"></script>
<script src="{{ url_for('static', filename='js/market.js') }}"></script>
{% endblock %}