Chart - Priority Scatter Plot

function generateChart(api, params, context) {
    const items = api.queryItems("type = 'task'");
    
    const data = items
        .filter(i => i.DueDate() !== null)
        .map(i => ({
            value: [
                new Date(i.DueDate()).getTime(),
                getPriorityScore(i.GetField('priority'))
            ],
            item: i
        }));
    
    return echarts.createScatterChart(data, {
        title: 'Priority vs Due Date',
        xLabel: 'Due Date',
        yLabel: 'Priority'
    });
}

function getPriorityScore(priority) {
    switch(priority) {
        case 'critical': return 4;
        case 'high': return 3;
        case 'medium': return 2;
        case 'low': return 1;
        default: return 0;
    }
}

function getPriorityScore(priority) {
    switch(priority) {
        case 'critical': return 100;
        case 'high': return 75;
        case 'medium': return 50;
        case 'low': return 25;
        default: return 0;
    }
}