/*
#ffbd00 - gold
#0e1a36 - royal
#008281 - teal
#fafafa
#c1c1c1 - line
#f2f2f2;
*/

// set the dimensions and margins of the graph
const margin = {top: 20, right: 20, bottom: 70, left: 50},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

// parse the date / time
const parseTime = d3.timeParse("%d-%b-%y"); //"%B %d, %Y"

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

// define the line
// line options https://bl.ocks.org/d3noob/ced1b9b18bd8192d2c898884033b5529
// http://bl.ocks.org/emmasaunders/c25a147970def2b02d8c7c2719dc7502
  const valueline = d3.line()
		.curve(d3.curveLinear)
    .x(function(d) { return x(d.date); })
    .y(function(d) { return y(d.close); });

// append the svg obgect to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
const svg = d3.select("body").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 + ")");
  
//  
  

const drawChart = (data, chartMin = 0, chartMax = 100) => {
  
  
   data.forEach(function(d) {
      d.date = parseTime(d.date);
      d.close = +d.close;
  });

  // Scale the range of the data
  x.domain(d3.extent(data, function(d) { return d.date; }));
  y.domain([chartMin, d3.max(data, function(d) { return chartMax; })]); //d.close;

  // Add the X Axis
  svg.append("g")
      .attr("class", "axis")
      .attr("transform", "translate(0," + height + ")")
      .call(d3.axisBottom(x).ticks(20))
      .selectAll("text")	
        .style("text-anchor", "end")
        .attr("dx", "-.8em")
        .attr("dy", ".15em")
        .attr("transform", "rotate(-65)");

  // Add the Y Axis
  svg.append("g")
      .attr("class", "axis")
      .call(d3.axisLeft(y).ticks(20));
    
}

const handleMouseClick = (d) => {
  
}

const handleMouseOver = (d) => {
  
}

const handleMouseOut = (d) => {
  
}
  
const drawLine = (data, lineClass, bDrawPoints, bParseData = false) => {
  
  // format the data
  if (bParseData){
    data.forEach(function(d) {
        d.date = parseTime(d.date);
        d.close = +d.close;
    });
  }
  
  
  // Scale the range of the data
  x.domain(d3.extent(data, function(d) { return d.date; }));
  y.domain([0, d3.max(data, function(d) { return 100; })]); //d.close;
  

  // Add the valueline path.
  const path = svg.append("path")
      .data([data])
      .attr("class", lineClass)
      .attr("d", valueline);
  
  if (bDrawPoints) {
   
     svg.append('g').selectAll('circle')
          .data(data.reverse())
          .enter().append('circle')
     			.on("click", function(d) { return handleMouseClick(d)})
          .on("mouseover", function(d) {return handleMouseOver(d)})
          .on("mouseover", function(d) {return handleMouseOut(d)})
          .attr("cx", function(d) { return x(d.date) })
          .attr("cy", function(d) { return y(d.close) })
          .attr("r", 0)
     			.attr("class","datapoint")
          .style("opacity", function(d){ return (d.selected) ? 1 : 1})
          .style("fill", "white")
          .style("stroke", function(d) { return "#000" })
     			.style("pointer-events", "all")
     			.style("cursor", "pointer")
          .transition()
            .duration(1000)
            .delay( function(d,i){ return 250 + ( 750 * i) })
            .attr("r", 10);
          }
}