import React from 'react';
import Chart from 'react-chartjs-2';
import _ from 'lodash';
import styled from 'styled-components';
import useTheme from '../theme/useTheme';
import useDimensions from '../utility/useDimensions';
import { HorizontalSplitter } from '../widgets/Splitter';
import WidgetColumnBar, { WidgetColumnBarItem } from '../widgets/WidgetColumnBar';
import { FormCheckboxField, FormSelectField, FormTextField } from '../utility/forms';
import DataChart from './DataChart';
import { FormProviderCore } from '../utility/FormProvider';
import { loadChartData, loadChartStructure } from './chartDataLoader';
import useExtensions from '../utility/useExtensions';
import { getConnectionInfo } from '../utility/metadataLoaders';
import { findEngineDriver } from 'dbgate-tools';
import { FormFieldTemplateTiny } from '../utility/formStyle';
import { ManagerInnerContainer } from '../datagrid/ManagerStyles';
import { presetPrimaryColors } from '@ant-design/colors';
import ErrorInfo from '../widgets/ErrorInfo';

const LeftContainer = styled.div`
  background-color: ${(props) => props.theme.manager_background};
  display: flex;
  flex: 1;
`;

export default function ChartEditor({ data, config, setConfig, sql, conid, database }) {
  const [managerSize, setManagerSize] = React.useState(0);
  const theme = useTheme();
  const extensions = useExtensions();
  const [error, setError] = React.useState(null);

  const [availableColumnNames, setAvailableColumnNames] = React.useState([]);
  const [loadedData, setLoadedData] = React.useState(null);

  const getDriver = async () => {
    const conn = await getConnectionInfo({ conid });
    if (!conn) return;
    const driver = findEngineDriver(conn, extensions);
    return driver;
  };

  const handleLoadColumns = async () => {
    const driver = await getDriver();
    if (!driver) return;
    try {
      const columns = await loadChartStructure(driver, conid, database, sql);
      setAvailableColumnNames(columns);
    } catch (err) {
      setError(err.message);
    }
  };

  const handleLoadData = async () => {
    const driver = await getDriver();
    if (!driver) return;
    const loaded = await loadChartData(driver, conid, database, sql, config);
    if (!loaded) return;
    const { columns, rows } = loaded;
    setLoadedData({
      structure: columns,
      rows,
    });
  };

  React.useEffect(() => {
    if (sql && conid && database) {
      handleLoadColumns();
    }
  }, [sql, conid, database, extensions]);

  React.useEffect(() => {
    if (data) {
      setAvailableColumnNames(data ? data.structure.columns.map((x) => x.columnName) : []);
    }
  }, [data]);

  React.useEffect(() => {
    if (config.labelColumn && sql && conid && database) {
      handleLoadData();
    }
  }, [config, sql, conid, database, availableColumnNames]);

  if (error) {
    return (
      <div>
        <ErrorInfo message={error} />
      </div>
    );
  }

  return (
    <FormProviderCore values={config} setValues={setConfig} template={FormFieldTemplateTiny}>
      <HorizontalSplitter initialValue="300px" size={managerSize} setSize={setManagerSize}>
        <LeftContainer theme={theme}>
          <WidgetColumnBar>
            <WidgetColumnBarItem title="Style" name="style" height="40%">
              <ManagerInnerContainer style={{ maxWidth: managerSize }}>
                <FormSelectField label="Chart type" name="chartType">
                  <option value="bar">Bar</option>
                  <option value="line">Line</option>
                  {/* <option value="radar">Radar</option> */}
                  <option value="pie">Pie</option>
                  <option value="polarArea">Polar area</option>
                  {/* <option value="bubble">Bubble</option>
                <option value="scatter">Scatter</option> */}
                </FormSelectField>
                <FormTextField label="Color set" name="colorSeed" />
                <FormSelectField label="Truncate from" name="truncateFrom">
                  <option value="begin">Begin</option>
                  <option value="end">End (most recent data for datetime)</option>
                </FormSelectField>
                <FormTextField label="Truncate limit" name="truncateLimit" />
                <FormCheckboxField label="Show relative values" name="showRelativeValues" />
              </ManagerInnerContainer>
            </WidgetColumnBarItem>
            <WidgetColumnBarItem title="Data" name="data">
              <ManagerInnerContainer style={{ maxWidth: managerSize }}>
                {availableColumnNames.length > 0 && (
                  <FormSelectField label="Label column" name="labelColumn">
                    <option value=""></option>
                    {availableColumnNames.map((col) => (
                      <option value={col} key={col}>
                        {col}
                      </option>
                    ))}
                  </FormSelectField>
                )}
                {availableColumnNames.map((col) => (
                  <React.Fragment key={col}>
                    <FormCheckboxField label={col} name={`dataColumn_${col}`} />
                    {config[`dataColumn_${col}`] && (
                      <FormSelectField label="Color" name={`dataColumnColor_${col}`}>
                        <option value="">Random</option>

                        {_.keys(presetPrimaryColors).map((color) => (
                          <option value={color} key={color}>
                            {_.startCase(color)}
                          </option>
                        ))}
                      </FormSelectField>
                    )}
                  </React.Fragment>
                ))}
              </ManagerInnerContainer>
            </WidgetColumnBarItem>
          </WidgetColumnBar>
        </LeftContainer>

        <DataChart data={data || loadedData} />
      </HorizontalSplitter>
    </FormProviderCore>
  );
}