/*
title: Aggregate Morphing Between Scatter Clustering
category: custom
titleCN: 聚合分割形变（散点图聚类）
difficulty: 10
*/


var CLUSTER_COLORS = [
    '#cc5664', '#9bd6ec', '#ea946e', '#8acaaa', '#f1ec64', '#ee8686', '#a48dc1', '#5da6bc', '#b9dcae'
];
var ANIMATION_DURATION_UPDATE = 1500;

var RAW_DATA = [[1425139200000,34,0.13,2,"MD","ZD","P0"],[1425225600000,28,0.71,1.5,"MB","ZD","P1"],[1425312000000,23,0.9,2.8,"MA","ZC","P2"],[1425398400000,21,0.58,6,"MB","ZC","P3"],[1425484800000,14,0.1,1.6,"MC","ZA","P4"],[1425571200000,21,0.6,7.7,"MC","ZA","P5"],[1425657600000,23,0.31,2.6,"MC","ZC","P6"],[1425744000000,34,0.74,2.4,"MD","ZE","P7"],[1425830400000,14,0.59,2.3,"MB","ZD","P8"],[1425916800000,18,0.85,5.1,"MB","ZB","P9"],[1426003200000,36,0.96,1.2,"MC","ZC","P10"],[1426089600000,18,0.28,2.5,"MA","ZC","P11"],[1426176000000,20,0.62,6,"MB","ZD","P12"],[1426262400000,32,0.79,1.7,"MB","ZA","P13"],[1426348800000,17,0.58,4.4,"MD","ZB","P14"],[1426435200000,23,0.77,3,"MB","ZA","P15"],[1426521600000,39,0.87,4.6,"MC","ZA","P16"],[1426608000000,15,0.7,6,"MB","ZC","P17"],[1426694400000,21,0.94,2.7,"MB","ZD","P18"],[1426780800000,28,0.48,4.5,"MC","ZC","P19"],[1426867200000,31,0.49,9.8,"MA","ZC","P20"],[1426953600000,27,0.87,7.7,"MB","ZB","P21"],[1427040000000,27,0.82,5.5,"MC","ZB","P22"],[1427126400000,11,0.53,2.7,"MD","ZC","P23"],[1427212800000,13,0.7,7.6,"MB","ZD","P24"],[1427299200000,39,0.99,4.8,"MB","ZD","P25"],[1427385600000,32,0.91,2.1,"MB","ZE","P26"],[1427472000000,20,0.97,5,"MB","ZA","P27"],[1427558400000,36,0.01,8.9,"MB","ZD","P28"],[1427644800000,22,0.08,9.2,"MB","ZE","P29"],[1427731200000,21,0.36,3.1,"MD","ZC","P30"],[1427817600000,11,0.15,5.8,"MD","ZB","P31"],[1427904000000,39,0.02,1.4,"MC","ZD","P32"],[1427990400000,20,0.86,8.7,"MB","ZD","P33"],[1428076800000,23,0.24,7.2,"MD","ZB","P34"],[1428163200000,12,0.06,2,"MD","ZB","P35"],[1428249600000,36,0.42,8.2,"MA","ZB","P36"],[1428336000000,17,0.48,7.5,"MB","ZC","P37"],[1428422400000,19,0.12,6.6,"MB","ZB","P38"],[1428508800000,39,0.58,3.1,"MC","ZE","P39"],[1428595200000,10,0.18,6.6,"MC","ZD","P40"],[1428681600000,22,0.28,2.1,"MB","ZE","P41"],[1428768000000,27,0.33,1.9,"MC","ZB","P42"],[1428854400000,37,0.46,9.4,"MD","ZE","P43"],[1428940800000,18,0.96,5.5,"MB","ZA","P44"],[1429027200000,11,0.61,8.2,"MD","ZC","P45"],[1429113600000,15,0.88,4.6,"MD","ZA","P46"],[1429200000000,38,0.89,7.2,"MD","ZC","P47"],[1429286400000,20,0.39,5.4,"MB","ZB","P48"],[1429372800000,30,0.71,5.5,"MA","ZA","P49"]];
var RAW_DATA_DIMENSIONS = ['DATE', 'COUNT', 'PRICE', 'WEIGHT', 'M_TAG', 'Z_TAG', 'ID'];


$.when(
    $.getScript('https://cdn.jsdelivr.net/npm/echarts-stat@1.2.0/dist/ecStat.min.js'),
    $.getScript('https://cdn.jsdelivr.net/npm/echarts-simple-transform@1.0.0/dist/ecSimpleTransform.min.js')
).done(function () {

    init();

    var currentIsClustered = false;
    setRawScatterOption();

    setInterval(function () {
        if (currentIsClustered) {
            currentIsClustered = false;
            setRawScatterOption();
        }
        else {
            currentIsClustered = true;
            setClusteredScatterOption();
        }
    }, 3000);

});


function init() {

    echarts.registerTransform(ecSimpleTransform.aggregate);
    echarts.registerTransform(ecStat.transform.clustering);

    var baseOption = {
        dataset: [{
            id: 'raw_dataset',
            dimensions: RAW_DATA_DIMENSIONS,
            source: RAW_DATA
        }, {
            id: 'raw_clustered_dataset',
            fromDatasetId: 'raw_dataset',
            transform: {
                type: 'ecStat:clustering',
                print: true,
                config: {
                    clusterCount: 4,
                    dimensions: ['COUNT', 'PRICE'],
                    outputClusterIndexDimension: {
                        index: RAW_DATA_DIMENSIONS.length,
                        name: 'CLUSTER_IDX'
                    },
                    outputCentroidDimensions: [{
                        index: RAW_DATA_DIMENSIONS.length + 1,
                        name: 'CLUSTER_CENTER_COUNT'
                    }, {
                        index: RAW_DATA_DIMENSIONS.length + 2,
                        name: 'CLUSTER_CENTER_PRICE'
                    }]
                }
            }
        }, {
            id: 'raw_cluster_centers_dataset',
            fromDatasetId: 'raw_clustered_dataset',
            transform: {
                type: 'ecSimpleTransform:aggregate',
                print: true,
                config: {
                    resultDimensions: [
                        { from: 'COUNT', method: 'count' },
                        { from: 'CLUSTER_CENTER_COUNT', method: 'first' },
                        { from: 'CLUSTER_CENTER_PRICE', method: 'first' },
                        { from: 'CLUSTER_IDX' }
                    ],
                    groupBy: 'CLUSTER_IDX'
                }
            }
        }],
        tooltip: {}
    };

    myChart.setOption(baseOption, { lazyUpdate: true });
}

function setRawScatterOption() {
    var option = {
        grid: {
            containLabel: true
        },
        xAxis: {
            name: 'PRICE'
        },
        yAxis: {
            name: 'COUNT'
        },
        series: {
            type: 'custom',
            coordinateSystem: 'cartesian2d',
            animationDurationUpdate: ANIMATION_DURATION_UPDATE,
            datasetId: 'raw_clustered_dataset',
            encode: {
                itemName: 'ID',
                x: 'PRICE',
                y: 'COUNT',
                tooltip: ['PRICE', 'COUNT', 'WEIGHT']
            },
            renderItem: function (params, api) {
                var pos = api.coord([
                    api.value('PRICE'),
                    api.value('COUNT')
                ]);
                return {
                    type: 'circle',
                    morph: true,
                    shape: {
                        cx: pos[0],
                        cy: pos[1],
                        r: 10
                    },
                    style: {
                        fill: '#5470c6'
                    },
                    transition: ['shape', 'style']
                };
            }
        }
    };

    myChart.setOption(option, {
        replaceMerge: ['xAxis', 'yAxis'],
        transition: {
            from: { seriesIndex: 0, dimension: 'CLUSTER_IDX' },
            to: { seriesIndex: 0, dimension: 'CLUSTER_IDX' }
        }
    });
}

function setClusteredScatterOption() {
    var option = {
        grid: {
            containLabel: true
        },
        xAxis: {
            name: 'PRICE'
        },
        yAxis: {
            name: 'COUNT'
        },
        series: {
            type: 'custom',
            coordinateSystem: 'cartesian2d',
            animationDurationUpdate: ANIMATION_DURATION_UPDATE,
            datasetId: 'raw_cluster_centers_dataset',
            encode: {
                x: 'CLUSTER_CENTER_PRICE',
                y: 'CLUSTER_CENTER_COUNT',
                tooltip: ['CLUSTER_CENTER_PRICE', 'CLUSTER_CENTER_COUNT']
            },
            renderItem: function (params, api) {
                var context = params.context;
                if (!context.layout) {
                    context.layout = true;
                    context.totalCount = 0;
                    for (var i = 0; i < params.dataInsideLength; i++) {
                        context.totalCount += api.value('COUNT', i);
                    }
                }

                var pos = api.coord([
                    api.value('CLUSTER_CENTER_PRICE'),
                    api.value('CLUSTER_CENTER_COUNT')
                ]);
                var count = api.value('COUNT');
                var radius = count / context.totalCount * 100 + 10;
                return {
                    type: 'circle',
                    morph: true,
                    shape: {
                        cx: pos[0],
                        cy: pos[1],
                        r: radius,
                    },
                    style: {
                        // fill: CONTENT_COLOR,
                        fill: CLUSTER_COLORS[params.dataIndex]
                    },
                    transition: ['shape', 'style']
                };
            }
        }
    };

    myChart.setOption(option, {
        replaceMerge: ['xAxis', 'yAxis'],
        transition: {
            from: { seriesIndex: 0, dimension: 'CLUSTER_IDX' },
            to: { seriesIndex: 0, dimension: 'CLUSTER_IDX' }
        }
    });
}