<script language="javascript" src="{{ url_for('shelf.static', filename='shelf/js/library_field.js') }}"></script>
<script language="javascript" src="{{ url_for('shelf.static', filename='jquery/jquery.cropit.js') }}"></script>
<script language="javascript" src="{{ url_for('library.static', filename='smartcrop.js') }}"></script>
<script language="javascript">
(function($) {
    var CROP_PREVIEW_MAX_WIDTH = 400;
    var CROP_PREVIEW_MAX_HEIGHT = 300;

    $('.model-form').on('click', "button.modal-open", function() {
        var input_el = $(this).closest('.form-group').find('input');
        var modal = $(this).closest('.form-group').find('.modal');

        if (input_el.hasClass('remote-file'))
        {
            modal.data('val-target', '#' + input_el.attr('id'));

            modal.modal({
                remote: "/admin/fileadmin/modal/",
                toggle: "modal"
            });
        }
        else if (input_el.hasClass('picture'))
        {
            var thumb_id = 'thumb_' + input_el.attr('id');
            var thumb_el = $(this).closest('.form-group').find('.thumbnail>img').first();

            thumb_el.attr('id', thumb_id);

            modal.data('val-target', '#' + input_el.attr('id'));
            modal.data('src-target', '#' + thumb_id);

            if (thumb_el.attr('width') && thumb_el.attr('height')) {
                modal.data('crop-width', thumb_el.attr('width'));
                modal.data('crop-height', thumb_el.attr('height'));

                modal.observe('added', '.modal_file_element', function(record) {
                    if (!$(this).data('width') || !$(this).data('height')) {
                        $(this).removeClass('modal_file_element');
                        return;
                    }

                    if ($(this).data('width') < thumb_el.attr('width') || $(this).data('height') < thumb_el.attr('height')) {
                        $(this).find('span.link-file').append('<span class="picture_too_small">🚫 picture too small</span>');
                        $(this).removeClass('modal_file_element');
                        return;
                    }

                    if ($(this).data('width') != thumb_el.attr('width') || $(this).data('width') != thumb_el.attr('width')) {
                        $(this).addClass('modal_crop_required');
                    }
                });

                modal.observe('added', '.image-cropper', function(record) {
                    var preview = $(this).find('.cropit-preview').first();
                    var validator = modal.find('.modal_file_validate_crop').first();

                    validator.data('x', 0);
                    validator.data('y', 0);
                    validator.data('crop_width', thumb_el.attr('width'));
                    validator.data('crop_height', thumb_el.attr('height'));

                    preview_width_ratio = thumb_el.attr('width') / CROP_PREVIEW_MAX_WIDTH;
                    preview_height_ratio = thumb_el.attr('height') / CROP_PREVIEW_MAX_HEIGHT;
                    preview_max_ratio = Math.max(1, preview_width_ratio, preview_height_ratio);

                    preview_width = thumb_el.attr('width') / preview_max_ratio;
                    preview_height = thumb_el.attr('height') / preview_max_ratio;

                    $('.image-cropper').cropit({
                        imageState: {src: "{{ url_for('fileadmin.download', path='') }}" + $(this).data('path')},
                        width: preview_width,
                        height: preview_height,
                        exportZoom: preview_max_ratio,
                        imageBackground: true,
                        allowDragNDrop: false,
                        imageBackground: true,
                        onImageLoaded: function() {
                            validator.data('width', this.cropit.image.width);
                            validator.data('height', this.cropit.image.height);
                            validator.removeClass('disabled');

                            var $this = this;
                            SmartCrop.crop(this.cropit.image, {width: thumb_el.attr('width'), height: thumb_el.attr('height')}, function(result) {
                                $('.image-cropper').cropit('zoom', (preview_width/result.topCrop.width + preview_height/result.topCrop.height) / 2);
                                $('.image-cropper').cropit('offset', {
                                    x: -result.topCrop.x * $this.cropit.zoom,
                                    y: -result.topCrop.y * $this.cropit.zoom
                                });
                            });
                        },
                        onOffsetChange: function(offset) {
                            validator.data('x', (-offset.x / this.cropit.zoom).toFixed());
                            validator.data('y', (-offset.y / this.cropit.zoom).toFixed());
                        },
                        onZoomChange: function(zoom) {
                            validator.data('width', (thumb_el.attr('width') / (zoom * this.exportZoom)).toFixed());
                            validator.data('height', (thumb_el.attr('height') / (zoom * this.exportZoom)).toFixed());
                        }
                    });
                });
            }

            modal.get(0).crop_base_url = "{{ url_for('fileadmin.modal_crop', path='') }}";

            modal.modal({
                remote: "{{ url_for('fileadmin.modal_iconic_index') }}",
                toggle: "modal"
            }).on('hidden.bs.modal', function(e) {
                modal.disconnect();
            });
        }
        return false;
    });

    $('.model-form').on('click', "button.remove", function() {
        if ($(this).closest('.form-group').find('input').hasClass('remote-file'))
        {
            $(this).closest('.form-group').find('input').first().val('');
        }
        else if ($(this).closest('.form-group').find('input').hasClass('picture'))
        {
            $(this).closest('.form-group').find('img').first().attr('src', "/shelf/static/shelf/img/missing-picture.png");
            $(this).closest('.form-group').find('input[type=hidden]').first().val('');
        }
        return false;
    });
})(jQuery);
</script>
