{% extends "base.html" %}


{% block title %}Estimation {{ estimation.public_id }} of your ✈ travel footprint{% endblock %}


{% block hero %}
<div class="jumbotron">
{% if estimation.has_failed() %}
    <h1>{{ content.estimation.failure.hero.title | safe }}</h1>
    <p>{{ content.estimation.failure.hero.description | markdown | safe }}</p>
{% else %}
    <h1>{{ content.estimation.hero.title | safe }}</h1>
    <p>{{ content.estimation.hero.description | markdown | safe }}</p>
{% endif %}
</div>
{% endblock %}



{% macro render_cities(cities) %}
<ul class="numbered-list">
{% for city in cities %}
    <li>
        <span class="city-name" title="{{ city.address }}">
    {% if loop.first %}
        <strong>
        {{ city.city }}
        </strong>
    {% else %}
        {{ city.city }}
    {% endif %}
        </span>
        –
        {{ "%.d" | format(city.footprint | round(0) | int) }} CO<sub>2</sub><small>EQ</small>
    </li>
{% endfor %}
</ul>
{% endmacro %}


{% block body %}
<h2>
    {{ estimation.public_id }} ({{ estimation.status.name }})
</h2>
{% if estimation.errors or estimation.warnings %}
<div class="row">
{% if estimation.warnings %}
    <div class="col-md-6 alert-warning card">
        <div class="card-body">
            <h3 class="card-title">Warnings</h3>
            <pre>
{{ estimation.warnings }}
            </pre>
        </div>
    </div>
{% endif %}
{% if estimation.errors %}
    <div class="col-md-6 alert-danger card">
        <div class="card-body">
            <h3 class="card-title">Errors</h3>
            <pre>
{{ estimation.errors }}
            </pre>
        </div>
    </div>
{% endif %}
</div>
{% endif %}


<div class="row">
    <h4>Total CO<sub>2</sub> footprint (in grams-equivalent) of each city</h4>
    <div id="cities_footprints_d3viz"></div>
{#    <br>#}
{#    <p>A Legend here</p>#}
</div>

<hr>

<div class="row">

{% if not estimation.has_failed() %}
{% set estimation_output = estimation.get_output_dict() %}
{% if estimation.has_many_to_many() %}
    <div class="col-md-6">
    <p>
        For each destination city, the sum of the travels from all the origins.
    </p>
    {{ render_cities(estimation_output.cities) }}
    </div>
{% else %}
    <div class="col-md-6">
    <p>
        Carbon footprint for each city.
    </p>
    {{ render_cities(estimation_output.mean_footprint.cities) }}
    </div>
{% endif %}

    <div class="col-md-6">
        <ul class="nav">
            <li class="nav-item m-4">
                <a href="/estimation/{{ estimation.public_id }}.csv" class="btn btn-lg btn-primary">
                    Download CSV
                </a>
            </li>
            <li class="nav-item m-4">
                <a href="/estimation/{{ estimation.public_id }}.yml" class="btn btn-lg btn-warning">
                    Download Raw YAML
                </a>
            </li>
{#            <li class="nav-item m-4">#}
{#                <a href="/estimation/{{ estimation.public_id }}.xls" class="btn btn-lg btn-secondary disabled">#}
{#                    Download XLS#}
{#                </a>#}
{#            </li>#}
{#            <li class="nav-item m-4">#}
{#                <a href="/estimation/{{ estimation.public_id }}.ods" class="btn btn-lg btn-secondary disabled">#}
{#                    Download ODS#}
{#                </a>#}
{#            </li>#}
        </ul>
    </div>

</div>

<hr>

{#<div class="row">#}
{#    <div class="col-md-6">#}
{#        <h3>Raw Output <small>(YAML)</small></h3>#}
{#        <pre>#}
{#{{ estimation.output_yaml }}#}
{#        </pre>#}
{#    </div>#}
{#</div>#}
{% endif %}
{% endblock %}
{% block js %}
<script src="https://d3js.org/d3.v4.js"></script>
<script type="text/javascript">

/** POLYFILLS **/
Math.log10 = Math.log10 || function(x) {
  return Math.log(x) * Math.LOG10E;
};

/**
 * Useful for axes' domains on plots.
 * @param value
 * @returns {number}
 */
var ceil_value_to_magnitude = function(value) {
    var sign = 1;
    if (value < 0) {
        value = Math.abs(value);
        sign = -1;
    }
    if (value < 1) {
        return sign;
    }

    var low = Math.pow(10, Math.floor(Math.log10(value)));

    var cursor = low;
    var follop = 0;
    while ((cursor < value) && (follop <= 100)) {
        cursor += 0.1 * low;
        follop += 1;
    }

    return sign * cursor;
};


/** PLOTS **/
jQuery(document).ready(function($){

    var vizid = "#cities_footprints_d3viz";
    var csvUrl = "/estimation/{{ estimation.public_id }}.csv";
    var x_key = 'city';
    var y_key = 'co2 (g)';

    // Set the dimensions and margins of the graph
    var margin = {top: 10, right: 30, bottom: 100, left: 100},
        height = 666 - margin.top - margin.bottom;
    var width = Math.max(880, $(vizid).parent().width());
    width = width - margin.left - margin.right;

    // Append the svg object to the body of the page
    var svg = d3.select(vizid)
      .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 + ")");

    // Parse the Data
    d3.csv(csvUrl, function(data) {

        // Extrema
        var data_y_max = d3.max(data, function(d) { return parseFloat(d['co2 (g)']); });
        var axis_y_max = ceil_value_to_magnitude(data_y_max);

        // X axis
        var x = d3.scaleBand()
          .range([ 0, width ])
          .domain(data.map(function(d) { return d[x_key]; }))
          .padding(0.2);
        svg.append("g")
          .attr("transform", "translate(0," + height + ")")
          .call(d3.axisBottom(x))
          .selectAll("text")
            .attr("transform", "translate(-10,0)rotate(-45)")
            .style("text-anchor", "end");

        // Add Y axis
        var y = d3.scaleLinear()
          .range([ height, 0 ])
          .domain([ 0, axis_y_max ]);
        svg.append("g")
          .call(d3.axisLeft(y));

        // Bars
        svg.selectAll("mybar")
          .data(data)
          .enter()
          .append("rect")
            .attr("x", function(d) { return x(d[x_key]); })
            .attr("width", x.bandwidth())
            .attr("fill", "#d0808b")
            // Hide bars at the beginning
            .attr("height", function(d) { return height - y(0); }) // always equal to 0
            .attr("y", function(d) { return y(0); });

        // Animation
        svg.selectAll("rect")
          .transition()
          .duration(800)
          .attr("y", function(d) { return y(d[y_key]); })
          .attr("height", function(d) { return height - y(d[y_key]); })
          .delay(function(d, i) { return(i*100); });

        // …
    });

});
</script>
{% endblock %}