import React, { Component } from 'react';
import * as d3 from 'd3';
import moment from 'moment';
import { sgg } from 'ml-savitzky-golay-generalized';
import { FaBeer, FaInfoCircle } from "react-icons/fa";

import './TestAnalyticsGraph.css';

class TestAnalyticsGraph extends Component {
    constructor(props) {
        super(props);
        this.state = {
            data: this.props.data,
            show: this.props.show,
            showCardInfo: false
        };
    }
    componentDidMount() {
        // this.drawChart(this.state.data);
        this.drawBar(this.state.data);
    }

    drawBar(data) {
        if (!data) return;

        data.reverse();

        var margin = { top: 30, right: 20, bottom: 50, left: 15 },
            width = 700 - margin.left - margin.right,
            height = 180 - margin.top - margin.bottom;

        var svg = d3.select("#tests-count-graph").append('svg')
            .attr("id", "bargraph")
            .attr("width", width + margin.left + margin.right)
            .attr("height", height + margin.top + margin.bottom)
            .append("g").attr("transform",
                "translate(" + margin.left + "," + margin.top + ")");


        var xScale = d3.scaleBand().range([0, width]).padding(0.4),
            yScale = d3.scaleLinear().range([height, 0]);

        var g = svg.append("g")
            .attr("transform", "translate(" + 5 + "," + 5 + ")");


        xScale.domain(data.map(function (d) { return moment(d.date).format("MM-DD"); }));
        yScale.domain([0, d3.max(data, function (d) { return d.count; })]);


        g.append("g")
            .attr("transform", "translate(0," + height + ")")
            .call(d3.axisBottom(xScale));

        g.append("g")
            .call(d3.axisLeft(yScale).tickFormat(function (d) {
                return " " + d;
            }).ticks(10))
            .append("text")
            .attr("y", 6)
            .attr("dy", "0.71em")
            .attr("text-anchor", "end")
            .text("value");

        g.selectAll(".bar")
            .data(data)
            .enter().append("rect")
            .attr("class", "bar")
            .on("mouseover", (event, d) => {
                // console.log("event", event);
                d3.select(event.srcElement).attr('class', 'highlight');
                d3.select(event.srcElement).transition()
                    .duration(400)
                    .attr('width', xScale.bandwidth() + 5)
                    .attr("y", function (d) { return yScale(d.count) - 10; })
                    .attr("height", function (d) { return height - yScale(d.count) + 10; });

                g.append("text")
                    .attr('class', 'val') // add class to text label
                    .attr('x', function () {
                        return xScale(moment(d.date).format("MM-DD"));
                    })
                    .attr('y', function () {
                        return yScale(d.count) - 15;
                    })
                    .text(function () {
                        return [' ' + d.count];  // Value of the text
                    });
            })
            .on("mouseout", (event, d) => {
                d3.select(event.srcElement).attr('class', 'bar');
                d3.select(event.srcElement)
                    .transition()     // adds animation
                    .duration(400)
                    .attr('width', xScale.bandwidth())
                    .attr("y", function (d) { return yScale(d.count); })
                    .attr("height", function (d) { return height - yScale(d.count); });

                d3.selectAll('.val')
                    .remove()
            })
            .attr("x", function (d) { return xScale(moment(d.date).format("MM-DD")); })
            .attr("y", function (d) { return yScale(d.count); })
            .attr("width", xScale.bandwidth())
            .transition()
            .ease(d3.easeLinear)
            .duration(400)
            .delay(function (d, i) {
                return i * 50;
            })
            .attr("height", function (d) { return height - yScale(d.count); });
    }

    drawChart(data) {
        if (!data) return;
        var margin = { top: 20, right: 20, bottom: 30, left: 50 },
            width = 960 - margin.left - margin.right,
            height = 500 - margin.top - margin.bottom;

        const INNER_WIDTH = width;// - margin.left - margin.right;
        const INNER_HEIGHT = height - margin.top - margin.bottom;

        // set the ranges
        var x = d3.scaleTime().range([0, width]);
        var y = d3.scaleLinear().range([height, 0]);

        const xAxis = d3.axisBottom(x).ticks(10);
        const yAxis = d3.axisLeft(y).ticks(10);
        const xAxisGrid = d3.axisBottom(x).tickSize(-INNER_HEIGHT).tickFormat('').ticks(10);
        const yAxisGrid = d3.axisLeft(y).tickSize(-INNER_WIDTH).tickFormat('').ticks(10);

        // define the line
        var valueline = d3.line()
            .curve(d3.curveCatmullRom.alpha(0.5)) // curve
            .x(function (d) { return x(moment(d.date)); })
            .y(function (d) { return y(d.count); });

        var svg = d3.select("#tests-count-graph").append("svg")
            .attr("width", width + margin.left + margin.right)
            .attr("height", height + margin.top + margin.bottom)
            .append("g").attr("transform",
                "translate(" + margin.left + "," + margin.top + ")");
        // var g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")");

        // const options = {
        //     windowSize: 5,
        //     derivative: 0,
        //     polynomial: 3,
        // };
        // const sggResult = sgg(data.map(x => x.count), (Math.PI * 2) / data.length, options);

        // data.forEach(function (d, index) {
        //     d.date = d.date;
        //     d.count = sggResult[index];
        // });
        // data.forEach(function (d) {
        //     d.date = d.date;
        //     d.count = +d.count;
        // });

        x.domain(d3.extent(data, function (d) { return moment(d.date); }));
        y.domain([0, d3.max(data, function (d) { return d.count; })]);

        svg.append("path")
            .data([data])
            .attr("class", "line")
            .attr("d", valueline(data));

        svg.append("g")
            .attr("transform", "translate(0," + height + ")")
            .call(d3.axisBottom(x))
            .append("text")
            // .attr("transform", "rotate(-90)")
            .attr("x", 400)
            .attr("y", 30)
            .attr("dx", "0.71em")
            .attr("fill", "#000")
            .text("Test time");

        svg.append("g")
            .attr('class', 'y axis-grid')
            .call(yAxisGrid)
            // .call(d3.axisLeft(y))
            .append("text")
            .attr("transform", "rotate(-90)")
            .attr("x", -160)
            .attr("y", -36)
            .attr("dy", "0.71em")
            .attr("fill", "#000")
            .text("Tests Count");

        svg.append('g')
            .attr('class', 'y axis')
            .call(yAxis);


    }

    render() {
        return (
            <div>
                <div className='tests-count-card'>
                    <div className='testcount-graph-title'>Daily test counts<span className='testcount-info-icon' onClick={() => !this.setState({ showCardInfo: !this.state.showCardInfo })}><FaInfoCircle /></span></div>
                    {this.state.showCardInfo && <div className='testcount-info-card'>Daily test counts are shown. While off days are not taken into consideration</div>}
                    <div id="tests-count-graph" style={{ margin: '1em' }}>
                    </div>
                </div>
            </div>
        )
    };
}
export default TestAnalyticsGraph;