/* Copyright 2015 Bloomberg Finance L.P.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import * as widgets from '@jupyter-widgets/base';
import { semver_range } from './version';
import * as serialize from './serialize';

export class MarkModel extends widgets.WidgetModel {
  defaults() {
    return {
      ...widgets.WidgetModel.prototype.defaults(),
      _model_name: 'MarkModel',
      _model_module: 'bqplot',
      _view_module: 'bqplot',
      _model_module_version: semver_range,
      _view_module_version: semver_range,

      scales: {},
      scales_metadata: {},
      preserve_domain: {},
      display_legend: false,
      labels: [],
      apply_clip: true,
      visible: true,
      selected_style: {},
      unselected_style: {},
      selected: null,
      enable_hover: true,
      tooltip: null,
      tooltip_style: { opacity: 0.9 },
      interactions: { hover: 'tooltip' },
      tooltip_location: 'mouse',
    };
  }

  // These two attributes are the pixel values which should be appended
  // to the area of the plot to make sure that the entire mark is visible
  initialize(attributes, options) {
    super.initialize(attributes, options);
    this.on('change:scales', this.update_scales, this);
    this.once('destroy', this.handle_destroy, this);
    // `this.dirty` is set to `true` before starting computations that
    // might lead the state of the model to be temporarily inconsistent.
    // certain functions of views on that model might check the value
    // of `this.dirty` before rendering
    this.dirty = false;
    this.update_scales();
  }

  update_data() {
    // Update_data is typically overloaded in each mark
    // it triggers the "data_updated" event
    this.update_domains();
    this.trigger('data_updated');
  }

  update_domains() {
    // update_domains is typically overloaded in each mark to update
    // the domains related to its scales
  }

  update_scales() {
    this.unregister_all_scales(this.previous('scales'));
    this.trigger('scales_updated');
    this.update_domains();
  }

  unregister_all_scales(scales) {
    // disassociates the mark with the scale
    this.dirty = true;
    for (const key in scales) {
      scales[key].del_domain([], this.model_id + '_' + key);
    }
    this.dirty = false;
    //TODO: Check if the views are being removed
  }

  handle_destroy() {
    this.unregister_all_scales(this.get('scales'));
  }

  get_key_for_dimension(dimension) {
    const scales_metadata = this.get('scales_metadata');
    for (const scale in scales_metadata) {
      if (scales_metadata[scale].dimension === dimension) {
        return scale;
      }
    }
    return null;
  }

  get_key_for_orientation(orientation) {
    const scales_metadata = this.get('scales_metadata');
    for (const scale in scales_metadata) {
      if (scales_metadata[scale].orientation === orientation) {
        return scale;
      }
    }
    return null;
  }

  // TODO make this abstract
  get_data_dict(data, index) {
    return data;
  }

  static serializers = {
    ...widgets.WidgetModel.serializers,
    scales: { deserialize: widgets.unpack_models },
    tooltip: { deserialize: widgets.unpack_models },
    selected: serialize.array_or_json_serializer,
  };

  dirty: boolean;
  mark_data: any;
}
