<?php
include_once("../inc/functions.inc.php");
$_REQUEST['code']=$_REQUEST['code']?$_REQUEST['code']:'000001.SH';  
$_REQUEST['se']=$_REQUEST['se']?$_REQUEST['se']:'SSE'; 
$_REQUEST['t_start']=$_REQUEST['t_start']?$_REQUEST['t_start']:'2020-01-01';
$_REQUEST['t_end']=$_REQUEST['t_end']?$_REQUEST['t_end']:date('Y-m-d');
$title="指数VS融资融券余额";
include_once "../html/head.php";
?>
<script src="../js/renderCharts.js"></script>
<form name="main" id="main" method="get"> <div style="width:100%;text-align:center">
指数代码: <?php indexList('code'); ?>&nbsp;
融资融券交易所: <?php seList('se'); ?>&nbsp;

开始时间: <input type='date' name='t_start' id='t_start' width='30px' value='<?=$_REQUEST['t_start']?>' >
结束时间: <input type='date' name='t_end' id='t_end' width='30px' value='<?=$_REQUEST['t_end']?>' >
 &nbsp;&nbsp;
 <button id="submitBtn" class="btn-submit"><span>查询数据</span></button>
<div >&nbsp;</div>

</div> </form>
<div >&nbsp;</div>

<!-- 图表容器 -->
<div id="container" style="width: 1000px; height:400px; margin: 0 auto 20px;">
    <div class="loading-overlay" id="loadingOverlay">
        <div class="spinner"></div>
        <p style="font-size:18px; color:#2c3e50;">正在加载数据，请稍候...</p>
    </div>
</div>

<script>
    // 页面加载时初始化图表
    $(document).ready(function() {
        // 设置默认值
        $('#code').val('<?= $_REQUEST['code'] ?>');
        $('#se').val('<?= $_REQUEST['se'] ?>');
        
        // 加载初始数据
        loadChartData();
        
        // 绑定按钮点击事件
        $('#submitBtn').click(function(e) {
            e.preventDefault(); // 阻止表单提交刷新页面
            loadChartData();
        });
    });

    // 加载图表数据的函数
    function loadChartData() {
        // 显示加载动画
        $('#loadingOverlay').addClass('active');

        let t_start = $('#t_start').val();
        let t_end = $('#t_end').val();
        let code = $("#code").val();
        let se = $("#se").val();
        let codeName=convertIndexCode(code);
        url =   "https://api.doorcome.cn/api/indexDatas/?tscode="+code;
        url +=  "&start_date="+t_start+"&end_date="+t_end;
        url1 =   "https://api.doorcome.cn/api/dailymargin/?exchange_id="+se;
        url1 +=  "&start_date="+t_start+"&end_date="+t_end;
        Promise.all([
            fetch(url),
            fetch(url1)
            ])
            .then(responses => Promise.all(responses.map(r => r.json())))
            .then(([indexData,seData]) => {
                let dataMain=pickData(indexData, 'trade_date', 'close');
                let marginData=pickData(seData, 'trade_date', 'rzrqye');
                // 图表配置:total_mv
                params = {};
                params.chartid='container';
                params.legend = [codeName,'融资融券余额-亿'];
                params.text = params.legend[0]+' V.S '+params.legend[1];
                params.data1 = dataMain;
                params.data2 = marginData;
                params.data2 = params.data2.map(item => {
                    return {
                        value: [
                            item.value[0], 
                            parseFloat((parseFloat(item.value[1]) / 10000 / 10000 ).toFixed(2))
                        ]
                    };
                });
                dataCal = calculateStats(params.data2);
                params.sub_text = "融资融券余额  Max:"+dataCal['max'];
                params.sub_text += ",  Min:"+dataCal['min'];
                params.sub_text += ",  Average:"+dataCal['avg'];
                params.sub_text += ",  Recent:"+dataCal['last'];
                doubleLineChart(params);
            })
            .catch(error => console.error('数据加载失败:', error))
            .finally(() => {
                // 隐藏加载动画
                $('#loadingOverlay').removeClass('active');
            });
    }
</script>
<?php include_once("../html/footer.php"); ?>

