let { Buffer } = require("buffer");
const {ChartJSNodeCanvas} = require("chartjs-node-canvas");

const dependencies = {
    chartJS: require("chartjs-node-canvas")
};

const constants = {
    TYPES: ['PNG', 'SVG'],
    smalll: {
        height: 400,
        width: 400
    },
    medium: {
        height: 500,
        width: 500
    }
};

(async () => {
    console.log("Creating Chart Object");
    const { CanvasRenderService } = dependencies.chartJS;
    const { height, width } = constants.medium;
    const renderService = new ChartJSNodeCanvas({ type: 'svg', width: 800, height: 600 });
    /*let renderService = new CanvasRenderService(width, height, (ChartJS) => {
        ChartJS.defaults.global.animation = false;
        ChartJS.defaults.global.responsive = false;
    }, 'SVG'); //Tried SVG and svg*/
    try {
        let buffer = await renderService.renderToBufferSync({
            type: 'bar',
            data: {
                labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
                datasets: [{
                    label: '# of Votes',
                    data: [12, 19, 3, 5, 2, 3],
                    backgroundColor: [
                        'rgba(255, 99, 132, 0.2)',
                        'rgba(54, 162, 235, 0.2)',
                        'rgba(255, 206, 86, 0.2)',
                        'rgba(75, 192, 192, 0.2)',
                        'rgba(153, 102, 255, 0.2)',
                        'rgba(255, 159, 64, 0.2)'
                    ],
                    borderColor: [
                        'rgba(255, 99, 132, 1)',
                        'rgba(54, 162, 235, 1)',
                        'rgba(255, 206, 86, 1)',
                        'rgba(75, 192, 192, 1)',
                        'rgba(153, 102, 255, 1)',
                        'rgba(255, 159, 64, 1)'
                    ],
                    borderWidth: 1
                }]
            },
            options: {
                /*scales: {
                    yAxes: [{
                        ticks: {
                            beginAtZero: true
                        }
                    }]
                }*/
            }
        }, 'image/svg+xml');
        //When I run this I dont get anthing below this to print out
        console.log("Finished");
        console.log();
        const fs = require('node:fs');
        fs.writeFileSync('image.svg', buffer, 'utf8');
        //let base64Str = Buffer.from(buffer).toString("base64");
        //console.log(base64Str);
    } catch (e) {
        console.log(e);
    }
})();