import Graphic from "@arcgis/core/Graphic";
import GraphicsLayer from "@arcgis/core/layers/GraphicsLayer";
import Point from "@arcgis/core/geometry/Point";
import SimpleMarkerSymbol from "@arcgis/core/symbols/SimpleMarkerSymbol";
import PopupTemplate from "@arcgis/core/PopupTemplate";
import { IActivityHandler } from "@vertigis/workflow";

/** An interface that defines the inputs of the activity. */
interface CreateGraphicLayerInputs {
  /**
   * @displayName Graphic
   * @description the graphic of the point data includeing geometry and attributes and symbol.
   * @required
   */
  graphics: {
    geometry: { x: number; y: number; z?: number };
    attributes: any;
    symbol?: SimpleMarkerSymbol;
  }[];

  /**
   * @displayName Popup Template
   * @description The popup template for the graphics.
   */
  popupTemplate?: PopupTemplate;

  /**
   * @displayName Spatial Reference WKID
   * @description The Well-Known ID (WKID) of the spatial reference system.
   */
  spatialReferenceWKID: number;
}

/** An interface that defines the outputs of the activity. */
interface CreateGraphicLayerOutputs {
  /**
   * @description The result of the activity.
   */
  result: GraphicsLayer;
}


function createGraphicsLayer(inputs: CreateGraphicLayerInputs): GraphicsLayer {
  const { graphics, popupTemplate, spatialReferenceWKID } = inputs;

  // Create a graphics layer
  const graphicsLayer = new GraphicsLayer();

  // Add graphics based on the provided geometry, symbol, attributes, and popup template
  graphics.forEach((gr) => {
    const graphic = new Graphic({
      geometry: new Point({
        x: gr.geometry.x,
        y: gr.geometry.y,
        z: gr.geometry.z,
        spatialReference: { wkid: spatialReferenceWKID },
      }),
      symbol: gr.symbol !== null ? gr.symbol : undefined,
      attributes: gr.attributes,
      popupTemplate: popupTemplate
        ? new PopupTemplate(popupTemplate)
        : undefined,
    });
    graphicsLayer.add(graphic);
  });

  return graphicsLayer;
}


/**
 * @displayName Create Graphic Layer
 * @category Geocortex
 * @description Create Graphic Point Layer v1.1
 */
export default class CreateGraphicLayerActivity implements IActivityHandler {
  /** Perform the execution logic of the activity. */
  execute(inputs: CreateGraphicLayerInputs): CreateGraphicLayerOutputs {
    const graphicsLayer = createGraphicsLayer(inputs);

    return {
      result: graphicsLayer,
    };
  }
}