// jshint esversion: 6
import React from "react";
import _ from "lodash";
import {
  Button,
  Tooltip,
  InputGroup,
  Dialog,
  Classes,
  MenuItem
} from "@blueprintjs/core";
import { Select } from "@blueprintjs/select";
import { connect } from "react-redux";
import * as globals from "../../globals";
import Category from "./category";

@connect(state => ({
  categoricalSelection: state.categoricalSelection,
  writableCategoriesEnabled: state.config?.parameters?.["label_file"] ?? false,
  schema: state.world?.schema
}))
class Categories extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      createAnnoModeActive: false,
      newCategoryText: "",
      categoryToDuplicate: null
    };
  }

  handleCreateUserAnno = () => {
    const { dispatch } = this.props;
    const { newCategoryText, categoryToDuplicate } = this.state;
    dispatch({
      type: "annotation: create category",
      data: newCategoryText,
      categoryToDuplicate
    });
    this.setState({
      createAnnoModeActive: false,
      categoryToDuplicate: null,
      newCategoryText: ""
    });
  };

  handleEnableAnnoMode = () => {
    this.setState({ createAnnoModeActive: true });
  };

  handleDisableAnnoMode = () => {
    this.setState({ createAnnoModeActive: false });
  };

  handleModalDuplicateCategorySelection = d => {
    this.setState({ categoryToDuplicate: d });
  };

  render() {
    const { createAnnoModeActive, categoryToDuplicate } = this.state;
    const {
      categoricalSelection,
      writableCategoriesEnabled,
      schema
    } = this.props;
    if (!categoricalSelection) return null;

    /* all names, sorted in display order.  Will be rendered in this order */
    const allCategoryNames = Object.keys(categoricalSelection).sort();

    return (
      <div
        style={{
          padding: globals.leftSidebarSectionPadding
        }}
      >
        {/* READ ONLY CATEGORICAL FIELDS */}
        {/* this is duplicative but flat, could be abstracted */}
        {_.map(allCategoryNames, catName =>
          !schema.annotations.obsByName[catName].writable ? (
            <Category
              key={catName}
              metadataField={catName}
              createAnnoModeActive={createAnnoModeActive}
              isUserAnno={false}
            />
          ) : null
        )}
        {/* WRITEABLE FIELDS */}
        {_.map(allCategoryNames, catName =>
          schema.annotations.obsByName[catName].writable ? (
            <Category
              key={catName}
              metadataField={catName}
              createAnnoModeActive={createAnnoModeActive}
              isUserAnno
            />
          ) : null
        )}
        {writableCategoriesEnabled ? (
          <div>
            <Dialog
              icon="tag"
              title="Create new category"
              isOpen={createAnnoModeActive}
              onClose={this.handleDisableAnnoMode}
            >
              <div className={Classes.DIALOG_BODY}>
                <div style={{ marginBottom: 20 }}>
                  <p>New, unique category name:</p>
                  <InputGroup
                    autoFocus
                    onChange={e =>
                      this.setState({ newCategoryText: e.target.value })
                    }
                    leftIcon="tag"
                  />
                </div>
                <p>
                  Optionally duplicate all labels & cell assignments from
                  existing category into new category:
                </p>
                <Select
                  items={allCategoryNames}
                  filterable={false}
                  itemRenderer={(d, { handleClick }) => {
                    return <MenuItem onClick={handleClick} key={d} text={d} />;
                  }}
                  noResults={<MenuItem disabled text="No results." />}
                  onItemSelect={d => {
                    this.handleModalDuplicateCategorySelection(d);
                  }}
                >
                  {/* children become the popover target; render value here */}
                  <Button
                    text={
                      categoryToDuplicate || "None (all cells 'unassigned')"
                    }
                    rightIcon="double-caret-vertical"
                  />
                </Select>
              </div>
              <div className={Classes.DIALOG_FOOTER}>
                <div className={Classes.DIALOG_FOOTER_ACTIONS}>
                  <Tooltip content="Close this dialog without creating a category.">
                    <Button onClick={this.handleDisableAnnoMode}>Cancel</Button>
                  </Tooltip>
                  <Button onClick={this.handleCreateUserAnno} intent="primary">
                    Create new category
                  </Button>
                </div>
              </div>
            </Dialog>
            <Button onClick={this.handleEnableAnnoMode} intent="primary">
              Create new category
            </Button>
          </div>
        ) : null}
      </div>
    );
  }
}

export default Categories;