// http://colorbrewer2.org/

function ColorMap()
{
    // public methods
    this.byConference = function(conference) // no restrictions
    {
        if (bigFive.indexOf(conference) >= 0)
        {
            return colors0[0];
        }

        if (groupOfFive.indexOf(conference) >= 0)
        {
            return colors0[1];
        }

        return colors0[2];
    }

    this.getConferenceColors = function()
    {
        return [
            { category: 'Big Five', color: colors0[0] },
            { category: 'Group Of Five', color: colors0[1] },
            { category: 'Independent', color: colors0[2] }
        ];
    }

    this.byConferenceBlindSafe = function(conference)
    {
        if (bigFive.indexOf(conference) >= 0)
        {
            return colors1[0];
        }

        if (groupOfFive.indexOf(conference) >= 0)
        {
            return colors1[1];
        }

        return colors1[2];
    }

    this.getConferenceBlindSafeColors = function()
    {
        return [
            { category: 'Big Five', color: colors1[0] },
            { category: 'Group Of Five', color: colors1[1] },
            { category: 'Independent', color: colors1[2] }
        ];
    }

    this.byConferencePhotocopySafe = function(conference)
    {
        if (bigFive.indexOf(conference) >= 0)
        {
            return colors2[0];
        }

        if (groupOfFive.indexOf(conference) >= 0)
        {
            return colors2[1];
        }

        return colors2[2];
    }

    this.getConferencePhotocopySafeColors = function()
    {
        return [
            { category: 'Big Five', color: colors2[0] },
            { category: 'Group Of Five', color: colors2[1] },
            { category: 'Independent', color: colors2[2] }
        ];
    }

    this.byBigFive = function(conference) // no restrictions
    {
        var i = bigFive.indexOf(conference);

        if (i >= 0)
        {
            return bigFiveColors[i];
        }
    }

    this.inBigFive = function(conference)
    {
        return bigFive.indexOf(conference) >= 0;
    }

    this.getBigFiveColors = function()
    {
        var categories = [];
        bigFive.forEach(function(v, i) {
            categories.push(
                { category: v, color: bigFiveColors[i] }
            );
        });
        return categories;
    }

    // expect rank, one of { 0, 1, 2, 3, 4 }
    this.fiveByMultiHue = function(rank)
    {
        if (rank < fiveMultiHue.length)
        {
            return fiveMultiHue[rank];
        }
    }

    this.getMultiHueColors = function()
    {
        var categories = [];
        fiveMultiHue.forEach(function(v, i) {
            categories.push(
                { category: 'Rank ' + (i + 1), color: v }
            );
        });
        return categories;
    }

    // see above for rank
    this.fiveBySingleHue = function(rank)
    {
        if (rank < fiveSingleHue.length)
        {
            return fiveSingleHue[rank];
        }
    }

    this.getSingleHueColors = function()
    {
        var categories = [];
        fiveSingleHue.forEach(function(v, i) {
            categories.push(
                { category: 'Rank ' + (i + 1), color: v }
            );
        });
        return categories;
    }

    // private variables
    var bigFive = [ 'SEC', 'ACC', 'Big 12', 'Pac-12', 'Big Ten' ];

    var groupOfFive = [ 'American', 'Sun Belt', 'MWC', 'MAC', 'CUSA' ];

    var fiveMultiHue = [
        '#253494',
        '#2c7fb8',
        '#41b6c4',
        '#a1dab4',
        '#ffffcc'
    ];

    var fiveSingleHue = [
        '#a50f15',
        '#de2d26',
        '#fb6a4a',
        '#fcae91',
        '#fee5d9'
    ];

    var colors0 = [ '#e41a1c', '#377eb8', '#4daf4a' ];
    var colors1 = [ '#1b9e77', '#d95f02', '#7570b3' ];
    var colors2 = [ '#f0f0f0', '#bdbdbd', '#636363' ];
    var bigFiveColors = [ '#e41a1c', '#377eb8', '#4daf4a', '#984ea3', 
                          '#ff7f00'];
}