flopp / FloppsMap

  regexp: true

  indent: 4

*/

/*global

  $, google, theMarkers, id2alpha, Cookies, Coordinates, TxtOverlay

*/

function Line(themap, id, source, target) {

    'use strict';

    this.m_map = themap;

    this.m_id = id;

    this.m_lineMapObject = null;

    this.m_source = -1;

    this.m_target = -1;

    this.m_distanceLabel = null;

    $('#dynLineDiv').append(

        "<div id=\"dynLine" + id + "\">" +

            "<table style=\"width: 100%\">" +

            "<tr>" +

            "<td>" +

            "<select id=\"dynlinesource" + id + "\" class=\"my-small-select\" data-i18n=\"[title]sidebar.lines.source\" onchange=\"Lines.selectLineSource(" + id + ")\"><option value=\"-1\">?</option></select>" +

            " → " +

            "<select id=\"dynlinetarget" + id + "\" class=\"my-small-select\" data-i18n=\"[title]sidebar.lines.destination\" onchange=\"Lines.selectLineTarget(" + id + ")\"><option value=\"-1\">?</option></select>" +

            "</td>" +

            "<td>" +

            "<button class=\"my-button btn btn-mini btn-danger\" style=\"float: right\" data-i18n=\"[title]sidebar.lines.delete_line\" type=\"button\" onClick=\"trackLine('delete'); Lines.deleteLine(" + id + ")\"><i class=\"fa fa-trash-o\"></i></button>" +

            "<div>" +

            "</div>" +

            "</td>" +

            "</tr>" +

            "<tr><td colspan=\"2\"><i class=\"fa fa-arrows-h\"></i> <span id=\"dynlinedist" + id + "\">n/a</span> <i class=\"fa fa-compass\"></i> <span id=\"dynlineangle" + id + "\">n/a</span></td></tr>" +

            "</table>" +

            "</div>"

    );

    this.updateLists();

    this.setSource(source);

    this.setTarget(target);

}

Line.prototype.m_map = null;

Line.prototype.m_id = -1;

Line.prototype.m_lineMapObject = null;

Line.prototype.m_source = -1;

Line.prototype.m_target = -1;

Line.prototype.m_distanceLabel = null;

Line.prototype.clearMapObject = function () {

    'use strict';

    if (this.m_lineMapObject) {

        this.m_lineMapObject.setMap(null);

        this.m_lineMapObject = null;

    }

    if (this.m_distanceLabel) {

        this.m_distanceLabel.setMap(null);

        this.m_distanceLabel = null;

    }

};

Line.prototype.getEndpointsString = function () {

    'use strict';

    return id2alpha(this.m_source) + ":" + id2alpha(this.m_target);

};

Line.prototype.setSource = function (markerId) {

    'use strict';

    if (markerId !== this.m_source) {

        this.m_source = markerId;

        this.update();

        $("#dynlinesource" + this.m_id + " > option[value=" + markerId + "]").attr("selected", "selected");

    }

};

Line.prototype.setTarget = function (markerId) {

    'use strict';

    if (markerId !== this.m_target) {

        this.m_target = markerId;

        this.update();

        $("#dynlinetarget" + this.m_id + " > option[value=" + markerId + "]").attr("selected", "selected");

    }

};

Line.prototype.update = function () {

    'use strict';

    if (this.m_source === -1 || this.m_target === -1) {

        this.clearMapObject();

        $("#dynlinedist" + this.m_id).html("n/a");

        $("#dynlineangle" + this.m_id).html("n/a");

        return;

    }

    var pos1 = theMarkers.getById(this.m_source).getPosition(),

        pos2 = theMarkers.getById(this.m_target).getPosition(),

        path = new google.maps.MVCArray(),

        dist_angle = { dist: 0, angle: 0 },

        centerPos;

    if (!this.m_lineMapObject) {

        this.m_lineMapObject = new google.maps.Polyline({

            strokeColor: '#ff0000',

            strokeWeight: 2,

            strokeOpacity: 0.7,

            geodesic: true,

            icons: [{

                icon: {

                    path: google.maps.SymbolPath.FORWARD_CLOSED_ARROW

                },

                repeat: '0'

            }]

        });

        this.m_lineMapObject.setMap(this.m_map);

        this.m_distanceLabel = new TxtOverlay(pos2, "n/a", "mapDistanceLabel", this.m_map);

    }

    path.push(pos1);

    path.push(pos2);

    this.m_lineMapObject.setPath(path);

    if (this.m_source !== this.m_target) {

        dist_angle = Coordinates.dist_angle_geodesic(pos1, pos2);

    }

    centerPos = Coordinates.projection_geodesic(pos1, dist_angle.angle, 0.5 * dist_angle.dist);

    this.m_distanceLabel.setPos(centerPos);

    this.m_distanceLabel.setText(dist_angle.dist.toFixed() + "m");

    if (dist_angle.dist <= 0) {

        $("#dynlinedist" + this.m_id).html("0m");

        $("#dynlineangle" + this.m_id).html("n/a");

    } else {

        $("#dynlinedist" + this.m_id).html(dist_angle.dist.toFixed() + "m");

        $("#dynlineangle" + this.m_id).html(dist_angle.angle.toFixed(1) + "°");

    }

};

Line.prototype.updateMarkerMoved = function (markerId) {

    'use strict';

    if (this.m_source === markerId || this.m_target === markerId) {

        this.update();

    }

};

Line.prototype.updateMarkerRemoved = function (markerId) {

    'use strict';

    if (this.m_source === markerId) {

        this.m_source = -1;

        this.clearMapObject();

    }

    if (this.m_target === markerId) {

        this.m_target = -1;

        this.clearMapObject();

    }

    this.updateLists();

};

Line.prototype.updateMarkerAdded = function () {

    'use strict';

    this.updateLists();

};

Line.prototype.updateLists = function () {

    'use strict';

    var source = $('#dynlinesource' + this.m_id),

        target = $('#dynlinetarget' + this.m_id),

        i,

        m;

    source.empty();

    target.empty();

    source.append('<option value="-1">?</option>');

    target.append('<option value="-1">?</option>');

    for (i = 0; i < theMarkers.getSize(); i = i + 1) {

        m = theMarkers.getById(i);

        if (!m.isFree()) {

            source.append('<option value="' + i + '">' + m.getAlpha() + '</option>');

            target.append('<option value="' + i + '">' + m.getAlpha() + '</option>');

        }

    }

    $("#dynlinesource" + this.m_id + " > option[value=" + this.m_source + "]").attr("selected", "selected");

    $("#dynlinetarget" + this.m_id + " > option[value=" + this.m_target + "]").attr("selected", "selected");

};

var Lines = {};

Lines.m_map = null;

Lines.m_nextLineId = 0;

Lines.m_lines = [];

Lines.init = function (themap) {

    'use strict';

    Lines.m_map = themap;

    Lines.m_nextLineId = 0;

    Lines.m_lines = [];

};

Lines.newLine = function (source, target) {

    'use strict';

    this.m_lines.push(new Line(Lines.m_map, this.m_nextLineId, source, target));

    this.m_nextLineId += 1;

    this.saveCookie();

};

Lines.getLineIndex = function (id) {

    'use strict';

    var index, line;

    for (index = 0; index < this.m_lines.length; index += 1) {

        line = this.m_lines[index];

        if (line && line.getId() === id) {

            return index;

        }

    }

    return -1;

};

Lines.getLineById = function (id) {

    'use strict';

    var index = this.getLineIndex(id);

    if (index < 0) {

        return null;

    }

    return this.m_lines[index];

};

Lines.getLinesText = function () {

    'use strict';

    var a = [];

    this.m_lines.map(function (line) {

        if (line) {

            a.push(line.getEndpointsString());

        }

    });

    return a.join("*");

};

Lines.saveCookie = function () {

    'use strict';

    Cookies.set("lines", this.getLinesText(), {expires: 30});

};

Lines.selectLineSourceById = function (id, markerId) {

    'use strict';

    this.getLineById(id).setSource(markerId);

    this.saveCookie();

};

Lines.selectLineSource = function (id) {

    'use strict';

    var markerId = -1,

        opt = $("#dynlinesource" + id + " option:selected");

    if (opt) {

        markerId = parseInt(opt.val(), 10);

    }

    this.selectLineSourceById(id, markerId);

};

Lines.selectLineTargetById = function (id, markerId) {

    'use strict';

    this.getLineById(id).setTarget(markerId);

    this.saveCookie();

};

Lines.selectLineTarget = function (id) {

    'use strict';

    var markerId = -1,

        opt = $("#dynlinetarget" + id + " option:selected");

    if (opt) {

        markerId = parseInt(opt.val(), 10);

    }

    this.selectLineTargetById(id, markerId);

};

Lines.updateLinesMarkerMoved = function (markerId) {

    'use strict';

    this.m_lines.map(function (line) {

        if (line) {

            line.updateMarkerMoved(markerId);

        }

    });

};

Lines.updateLinesMarkerAdded = function () {

    'use strict';

    this.m_lines.map(function (line) {

        if (line) {

            line.updateMarkerAdded();

        }

    });

};

Lines.updateLinesMarkerRemoved = function (markerId) {

    'use strict';

    this.m_lines.map(function (line) {

        if (line) {

            line.updateMarkerRemoved(markerId);

        }

    });

    this.saveCookie();

};

Lines.updateLine = function (id) {

    'use strict';

    var index = this.getLineIndex(id);

    if (index < 0) {

        return;

    }

    this.m_lines[index].update();

};

Lines.deleteLine = function (id) {

    'use strict';

    $('#dynLine' + id).remove();

    var index = this.getLineIndex(id);

    if (index < 0 || !this.m_lines[index]) {

        return;

    }

    this.m_lines[index].clearMapObject();

    this.m_lines[index] = null;

    this.saveCookie();

};

Lines.deleteAllLines = function () {

    'use strict';

    var self = this;

    this.m_lines.map(function (line) {

        if (line) {

            self.deleteLine(line.getId());

        }

    });

};