/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* global DomProvider */

"use strict";

// React & Redux
const {
  Component,
  createFactory,
} = require("devtools/client/shared/vendor/react");
const PropTypes = require("devtools/client/shared/vendor/react-prop-types");

const { connect } = require("devtools/client/shared/vendor/react-redux");

const TreeView = createFactory(
  require("devtools/client/shared/components/tree/TreeView")
);
// Reps
const { REPS, MODE } = require("devtools/client/shared/components/reps/reps");
const { Rep } = REPS;

const Grip = REPS.Grip;
// DOM Panel
const { GripProvider } = require("../grip-provider");

const { DomDecorator } = require("../dom-decorator");

/**
 * Renders DOM panel tree.
 */
class DomTree extends Component {
  static get propTypes() {
    return {
      dispatch: PropTypes.func.isRequired,
      filter: PropTypes.string,
      grips: PropTypes.object,
      object: PropTypes.any,
      openLink: PropTypes.func,
    };
  }

  constructor(props) {
    super(props);
    this.onFilter = this.onFilter.bind(this);
  }

  /**
   * Filter DOM properties. Return true if the object
   * should be visible in the tree.
   */
  onFilter(object) {
    if (!this.props.filter) {
      return true;
    }

    return object.name && object.name.indexOf(this.props.filter) > -1;
  }

  /**
   * Render DOM panel content
   */
  render() {
    const { dispatch, grips, object, openLink } = this.props;

    const columns = [
      {
        id: "value",
      },
    ];

    let onDOMNodeMouseOver;
    let onDOMNodeMouseOut;
    let onInspectIconClick;
    const toolbox = DomProvider.getToolbox();
    if (toolbox) {
      onDOMNodeMouseOver = async (grip, options = {}) => {
        const inspectorFront = await toolbox.target.getFront("inspector");
        const nodeFront = await inspectorFront.getNodeFrontFromNodeGrip(grip);
        const { highlighterFront } = nodeFront;
        return highlighterFront.highlight(nodeFront, options);
      };
      onDOMNodeMouseOut = async grip => {
        const inspectorFront = await toolbox.target.getFront("inspector");
        const nodeFront = await inspectorFront.getNodeFrontFromNodeGrip(grip);
        nodeFront.highlighterFront.unhighlight();
      };
      onInspectIconClick = async grip => {
        const onSelectInspector = toolbox.selectTool(
          "inspector",
          "inspect_dom"
        );
        const onNodeFront = toolbox.target
          .getFront("inspector")
          .then(inspectorFront =>
            inspectorFront.getNodeFrontFromNodeGrip(grip)
          );
        const [nodeFront, inspectorPanel] = await Promise.all([
          onNodeFront,
          onSelectInspector,
        ]);

        const onInspectorUpdated = inspectorPanel.once("inspector-updated");
        const onNodeFrontSet = toolbox.selection.setNodeFront(nodeFront, {
          reason: "dom",
        });

        return Promise.all([onNodeFrontSet, onInspectorUpdated]);
      };
    }

    // This is the integration point with Reps. The DomTree is using
    // Reps to render all values. The code also specifies default rep
    // used for data types that don't have its own specific template.
    const renderValue = props => {
      return Rep(
        Object.assign({}, props, {
          onDOMNodeMouseOver,
          onDOMNodeMouseOut,
          onInspectIconClick,
          defaultRep: Grip,
          cropLimit: 50,
        })
      );
    };

    return TreeView({
      columns,
      decorator: new DomDecorator(),
      mode: MODE.SHORT,
      object,
      onFilter: this.onFilter,
      openLink,
      provider: new GripProvider(grips, dispatch),
      renderValue,
    });
  }
}

const mapStateToProps = state => {
  return {
    grips: state.grips,
    filter: state.filter,
  };
};

// Exports from this module
module.exports = connect(mapStateToProps)(DomTree);