/**
 * @file
 * Gmap Overlay Editor
 */

/*global $, Drupal, GEvent, GMarker, GPolygon, GPolyline */

Drupal.gmap.addHandler('overlayedit_linestyle', function (elem) {
    var obj = this;
    obj.vars.styles.overlayline = [];
    var f = function () {
        var o = Number($(this).attr('id').match(/\d+$/));
        obj.vars.styles.overlayline[o] = this.value;
    };
    $(elem).find('input.gmap_style').change(f).each(f);
});

Drupal.gmap.addHandler('overlayedit_linestyle_apply', function (elem) {
    var obj = this;
    obj.vars.overlay_linestyle_apply = Boolean(elem.checked);
    $(elem).change(function () {
        obj.vars.overlay_linestyle_apply = Boolean(this.checked);
    });
});

Drupal.gmap.addHandler('overlayedit_polystyle', function (elem) {
    var obj = this;
    obj.vars.styles.overlaypoly = [];
    var f = function () {
        var o = Number($(this).attr('id').match(/\d+$/));
        obj.vars.styles.overlaypoly[o] = this.value;
    };
    $(elem).find('input.gmap_style').change(f).each(f);
});

Drupal.gmap.addHandler('overlayedit_polystyle_apply', function (elem) {
    var obj = this;
    obj.vars.overlay_polystyle_apply = Boolean(elem.checked);
    $(elem).change(function () {
        obj.vars.overlay_polystyle_apply = Boolean(this.checked);
    });
});

Drupal.gmap.addHandler('overlayedit_fillstroke_default', function (elem) {
    var obj = this;
    obj.vars._usedefaultfillstroke = Boolean(elem.checked);
    $(elem).change(function () {
        obj.vars._usedefaultfillstroke = Boolean(this.checked);
        alert(obj.vars._usedefaultfillstroke);
    });
});

Drupal.gmap.addHandler('overlayedit_mapclicktype', function (elem) {
    var obj = this;
    obj.vars.overlay_add_mode = elem.value;
    $(elem).change(function () {
        obj.vars.overlay_add_mode = elem.value;
        if (obj.temp_point) {
            delete obj.temp_point;
        }
    });
});
Drupal.gmap.addHandler('overlayedit_markerclicktype', function (elem) {
    var obj = this;
    obj.vars.overlay_del_mode = elem.value;
    $(elem).change(function () {
        obj.vars.overlay_del_mode = elem.value;
    });
});

Drupal.gmap.addHandler('gmap', function (elem) {
    var obj = this;

    // Add status bar
    var status = $(elem).after('<div class="gmap-statusbar">Status</div>').next();
    obj.statusdiv = status[0];

    obj.bind('buildmacro', function (add) {
        var temp, i, q, tm, ct;

        var style_line = function (n) {
            if (!n.style.length) {
                return '';
            }
            var style = n.style.slice(0, 3);
            style[0] = '#' + style[0];
            return style.join('/') + ':';
        };
        var style_poly = function (n) {
            if (!n.style.length) {
                return '';
            }
            var style = n.style.slice();
            style[0] = '#' + style[0];
            style[3] = '#' + style[3];
            return style.join('/') + ':';
        };

        var feature_dump = function (n) {
            var f = n.overlay;
            var tmp = [];
            var i, ct, vtx;
            ct = f.getVertexCount();
            for (i = 0; i < ct; i++) {
                vtx = f.getVertex(i);
                tmp.push('' + vtx.lat() + ',' + vtx.lng());
            }
            return tmp.join(' + ');
        };

        if (obj._oe && obj._oe.features) {
            var polygons = [];
            var polylines = [];
            var circles = [];
            var markers = {};
            $.each(obj._oe.features, function (i, n) {
                if (n.type) {
                    switch (n.type) {
                        case 'polyline':
                            add.push('line=' + style_line(n) + feature_dump(n));
                            break;
                        case 'polygon':
                            add.push('polygon=' + style_poly(n) + feature_dump(n));
                            break;
                        case 'point':
                            if (!markers[n.marker]) {
                                markers[n.marker] = [];
                            }
                            var pt = n.overlay.getPosition();
                            var ptxt = '';
                            if (n.html) {
                                ptxt = ':' + n.html;
                            }
                            markers[n.marker].push('' + pt.lat() + ',' + pt.lng() + ptxt);
                            break;
                        case 'circle':
                            add.push('circle=' + style_poly(n) + n.center.lat() + ' , ' + n.center.lng() + ' + ' + n.radius / 1000);
                            break;
                    }
                }
            });
            $.each(markers, function (i, n) {
                add.push('markers=' + i + '::' + n.join(' + '));
            });
        }
    });
});

Drupal.gmap.map.prototype.statusdiv = undefined;

Drupal.gmap.map.prototype.status = function (text) {
    var obj = this;
    if (obj.statusdiv) {
        $(obj.statusdiv).html(text);
    }
};

// Extend markers to store type info.
google.maps.Marker.prototype.gmapMarkerData = function (data) {
    if (data) {
        this._gmapdata = data;
    }
    return this._gmapdata;
};

/************* Overlay edit widget ******************/
Drupal.gmap.addHandler('overlayedit', function (elem) {
    var obj = this;

    var binding = obj.bind('overlay_edit_mode', function () {
        // @@@
    });

    $(elem).change(function () {
        obj.vars.overlay_next_icon = elem.value;
//    obj.vars.overlay_edit_mode = elem.value;
//    obj.change('overlay_edit_mode',binding);
    });

    obj.bind('init', function () {
        obj._oe = {};
        obj.vars.overlay_add_mode = 'Points'; //elem.value;
        obj.vars.overlay_del_mode = 'Remove';
        var edit_text_elem;

        if (obj.map) {
            obj._oe.features = [];
            obj._oe.featuresRef = {};
            obj._oe.editing = false;
            obj._oe.markerseq = {};
            google.maps.event.addListener(obj.map, 'click', function (event) {
                var ctx, s, p;
                var point = event.latLng;
                if (0 && overlay) {
                    if (obj._oe.editing) {
                        // Work around problem where double clicking to finish a poly fires a click event.
                        obj._oe.editing = false;
                    }
                    else {
                    }
                }
                else if (point && !obj._oe.editing) {
                    obj._oe.editing = true;
                    switch (obj.vars.overlay_add_mode) {
                        case 'Points':
                            var m = elem.value; // @@@ It's kinda silly to be binding the whole shebang to this dropdown..
                            if (!obj._oe.markerseq.hasOwnProperty(m)) {
                                obj._oe.markerseq[m] = -1;
                            }
                            obj._oe.markerseq[m] = obj._oe.markerseq[m] + 1;
                            var p = new google.maps.Marker({
                                position: point,
                                map: obj.map,
                                icon: Drupal.gmap.getIcon(m, obj._oe.markerseq[m]).ra
                            });
                            ctx = {
                                'type': 'point',
                                'marker': m,
                                'overlay': p
                            };
                            var offset = obj._oe.features.push(ctx) - 1;
                            obj._oe.editing = false;
                            google.maps.event.addListener(p, "click", function () {
                                switch (obj.vars.overlay_del_mode) {
                                    case 'Remove':
                                        obj._oe.markerseq[m] = obj._oe.markerseq[m] - 1;
                                        ctx.type = 'deleted';
                                        p.setMap(null);
                                        ctx.overlay = null;
                                        var tmpcnt = 0;
                                        // Renumber markers in set.
                                        $.each(obj._oe.features, function (i, n) {
                                            if (n.type && n.type === 'point' && n.marker === m) {
                                                var pt = n.overlay.getLatLng();
                                                n.overlay.setImage(Drupal.gmap.getIcon(n.marker, tmpcnt).ra);
                                                tmpcnt = tmpcnt + 1;
                                            }
                                        });
                                        break;
                                    case 'Edit info':
                                        // @@@
                                        break;
                                }
                                obj.change('mapedited', -1);
                            });
                            obj.change('mapedited', -1);
                            break;

                        case 'Lines':
                            ctx = {
                                'type': 'polyline',
                                'style': [],
                                'overlay': null
                            };
                            s = obj.vars.styles.line_default;
                            if (obj.vars.overlay_linestyle_apply) {
                                ctx.style = obj.vars.styles.overlayline.slice();
                                s = ctx.style;
                            }

                            var coord = [ new google.maps.LatLng(point) ];
                            var p = new google.maps.Polyline({path: coord, strokeColor: "#" + s[0], strokeOpacity: s[2] / 100, strokeWeight: Number(s[1])});
                            p.setMap(obj.map);

                            ctx.overlay = p;
                            obj._oe.featuresRef[p] = obj._oe.features.push(ctx) - 1;

                            p.runEdit(true);
                            google.maps.event.addListener(p, "mouseover", function () {
                                p.runEdit(true);
                            });
                            google.maps.event.addListener(p, "mouseout", function () {
                                p.stopEdit();
                            });
                            google.maps.event.addListener(p, "endline", function () {
                                //obj._oe.editing = false;
                                google.maps.event.addListener(p, "lineupdated", function () {
                                    obj.change('mapedited', -1);
                                });
                                google.maps.event.addListener(p, "click", function (latlng, index) {
                                    if (typeof index === "number") {
                                        // Delete vertex on click.
                                        p.deleteVertex(index);
                                    }
                                    else {
                                        var feature = obj._oe.features[obj._oe.featuresRef[p]];
                                        feature.stroke = obj.vars.stroke; // @@@
                                        p.setStrokeStyle(feature.stroke);
                                    }
                                });
                                obj.change('mapedited', -1);
                            });
                            break;

                        case 'GPolygon':
                            ctx = {
                                'type': 'polygon',
                                'style': [],
                                'overlay': null
                            };
                            s = obj.vars.styles.poly_default;
                            if (obj.vars.overlay_polystyle_apply) {
                                ctx.style = obj.vars.styles.overlaypoly.slice();
                                s = ctx.style;
                            }
                            p = new GPolygon([point], '#' + s[0], Number(s[1]), s[2] / 100, '#' + s[3], s[4] / 100);
                            obj.map.addOverlay(p);
                            ctx.overlay = p;
                            obj._oe.featuresRef[p] = obj._oe.features.push(ctx) - 1;

                            google.maps.event.addListener(p, "mouseover", function () {
                                p.runEdit(true);
                            });
                            google.maps.event.addListener(p, "mouseout", function () {
                                p.stopEdit();
                            });
                            google.maps.event.addListener(p, "endline", function () {
                                //obj._oe.editing = false;
                                google.maps.event.addListener(p, "lineupdated", function () {
                                    obj.change('mapedited', -1);
                                });
                                google.maps.event.addListener(p, "click", function (latlng, index) {
                                    if (typeof index === "number") {
                                        p.deleteVertex(index);
                                    }
                                    else {
                                        var feature = obj._oe.features[obj._oe.featuresRef[p]];
                                        feature.stroke = obj.vars.stroke;
                                        feature.fill = obj.vars.fill;
                                        p.setStrokeStyle(feature.stroke);
                                        p.setFillStyle(feature.fill); // @@@
                                    }
                                });
                                obj.change('mapedited', -1);
                            });
                            break;

                        case 'Circles':
                            var temppoint = point;
                            // @@@ Translate
                            obj.status("Drawing circle. Click a point on the rim to place.");

                            var handle = google.maps.event.addListener(obj.map, 'click', function (overlay, point) {
                                if (point) {
                                    var ctx = {
                                        'type': 'circle',
                                        'center': temppoint,
                                        'radius': null,
                                        'style': [],
                                        'overlay': null
                                    };
                                    var s = obj.vars.styles.poly_default;
                                    if (obj.vars.overlay_polystyle_apply) {
                                        ctx.style = obj.vars.styles.overlaypoly.slice();
                                        s = ctx.style;
                                    }
                                    obj.status("Placed circle. Radius was " + temppoint.distanceFrom(point) / 1000 + " km.");
                                    ctx.radius = temppoint.distanceFrom(point);
                                    var p = new GPolygon(obj.poly.calcPolyPoints(ctx.center, ctx.radius, 32), '#' + s[0], Number(s[1]), s[2] / 100, '#' + s[3], s[4] / 100);
                                    obj.map.addOverlay(p);
                                    ctx.overlay = p;
                                    obj._oe.featuresRef[p] = obj._oe.features.push(ctx) - 1;
                                    google.maps.event.addListener(p, "click", function () {
                                        switch (obj.vars.overlay_del_mode) {
                                            case 'Remove':
                                                ctx.type = 'deleted';
                                                obj.map.removeOverlay(p);
                                                ctx.overlay = null;
                                                break;
                                            case 'Edit info':
                                                // @@@
                                                break;
                                        }
                                        obj.change('mapedited', -1);
                                    });
                                }
                                else {
                                    // @@@ Uh, do cleanup I suppose..
                                }
                                obj._oe.editing = false;
                                google.maps.event.removeListener(handle);
                                obj.change('mapedited', -1);
                            });
                            break;
                    }
                }
            });
        }
    });
});