import PaletteProvider from 'bpmn-js/lib/features/palette/PaletteProvider';

function CustomPalette(
  palette,
  create,
  elementFactory,
  spaceTool,
  lassoTool,
  handTool,
  globalConnect,
  translate,
) {
  PaletteProvider.call(
    this,
    palette,
    create,
    elementFactory,
    spaceTool,
    lassoTool,
    handTool,
    globalConnect,
    translate,
    2000,
  );
}

CustomPalette.$inject = [
  'palette',
  'create',
  'elementFactory',
  'spaceTool',
  'lassoTool',
  'handTool',
  'globalConnect',
  'translate',
];

CustomPalette.prototype = Object.create(PaletteProvider.prototype);
CustomPalette.prototype.constructor = CustomPalette;

CustomPalette.prototype.getPaletteEntries = function () {
  const actions = {};
  const create = this._create;
  const elementFactory = this._elementFactory;
  const spaceTool = this._spaceTool;
  const lassoTool = this._lassoTool;
  const handTool = this._handTool;
  const globalConnect = this._globalConnect;
  const translate = this._translate;

  function createAction(type, group, className, title, options) {
    function createListener(event) {
      const shape = Object.assign(
        elementFactory.createShape({ type }, options),
      );

      if (options) {
        shape.businessObject.di.isExpanded = options.isExpanded;
      }

      create.start(event, shape);
    }

    const shortType = type.replace(/^bpmn:/, '');

    return {
      group,
      className,
      title: title || translate('Create {type}', { type: shortType }),
      action: {
        dragstart: createListener,
        click: createListener,
      },
    };
  }

  function createSubprocess(event) {
    const subProcess = elementFactory.createShape({
      type: 'bpmn:SubProcess',
      x: 0,
      y: 0,
      isExpanded: true,
    });

    const startEvent = elementFactory.createShape({
      type: 'bpmn:StartEvent',
      x: 40,
      y: 82,
      parent: subProcess,
    });

    create.start(event, [subProcess, startEvent], {
      hints: {
        autoSelect: [startEvent],
      },
    });
  }

  function createParticipant(event) {
    create.start(event, elementFactory.createParticipantShape());
  }

  Object.assign(actions, {
    'hand-tool': {
      group: 'tools',
      className: 'bpmn-icon-hand-tool',
      title: translate('Activate the hand tool'),
      action: {
        click(event) {
          handTool.activateHand(event);
        },
      },
    },
    'lasso-tool': {
      group: 'tools',
      className: 'bpmn-icon-lasso-tool',
      title: translate('Activate the lasso tool'),
      action: {
        click(event) {
          lassoTool.activateSelection(event);
        },
      },
    },
    'space-tool': {
      group: 'tools',
      className: 'bpmn-icon-space-tool',
      title: translate('Activate the create/remove space tool'),
      action: {
        click(event) {
          spaceTool.activateSelection(event);
        },
      },
    },
    'global-connect-tool': {
      group: 'tools',
      className: 'bpmn-icon-connection-multi',
      title: translate('Activate the global connect tool'),
      action: {
        click(event) {
          globalConnect.toggle(event);
        },
      },
    },
    'tool-separator': {
      group: 'tools',
      separator: true,
    },
    'create.start-event': createAction(
      'bpmn:StartEvent',
      'event',
      'bpmn-icon-start-event-none',
      translate('Create StartEvent'),
    ),
    'create.intermediate-event': createAction(
      'bpmn:IntermediateThrowEvent',
      'event',
      'bpmn-icon-intermediate-event-none',
      translate('Create Intermediate/Boundary Event'),
    ),
    'create.end-event': createAction(
      'bpmn:EndEvent',
      'event',
      'bpmn-icon-end-event-none',
      translate('Create EndEvent'),
    ),
    'create.exclusive-gateway': createAction(
      'bpmn:ExclusiveGateway',
      'gateway',
      'bpmn-icon-gateway-none',
      translate('Create Gateway'),
    ),
    'create.user-task': createAction(
      'bpmn:UserTask',
      'activity',
      'bpmn-icon-user-task',
      translate('Create User Task'),
    ),
    'create.call-activity': createAction(
      'bpmn:CallActivity',
      'activity',
      'bpmn-icon-call-activity',
      translate('Create Call Activity'),
    ),
    'create.service-task': createAction(
      'bpmn:ServiceTask',
      'activity',
      'bpmn-icon-service',
      translate('Create Service Task'),
    ),
    'create.data-object': createAction(
      'bpmn:DataObjectReference',
      'data-object',
      'bpmn-icon-data-object',
      translate('Create DataObjectReference'),
    ),
    'create.data-store': createAction(
      'bpmn:DataStoreReference',
      'data-store',
      'bpmn-icon-data-store',
      translate('Create DataStoreReference'),
    ),
    'create.subprocess-expanded': {
      group: 'activity',
      className: 'bpmn-icon-subprocess-expanded',
      title: translate('Create expanded SubProcess'),
      action: {
        dragstart: createSubprocess,
        click: createSubprocess,
      },
    },
    'create.participant-expanded': {
      group: 'collaboration',
      className: 'bpmn-icon-participant',
      title: translate('Create Pool/Participant'),
      action: {
        dragstart: createParticipant,
        click: createParticipant,
      },
    },
    'create.group': createAction(
      'bpmn:Group',
      'artifact',
      'bpmn-icon-group',
      translate('Create Group'),
    ),
  });

  return actions;
};

export default CustomPalette;