import React, { useEffect } from 'react';
import { connect, ConnectedProps } from 'react-redux';

import { Form, Button, Field, Checkbox, LinkButton, HorizontalGroup, Alert } from '@grafana/ui';
import { Page } from 'app/core/components/Page/Page';
import { StoreState } from 'app/types';

import { loadSupportBundleCollectors, createSupportBundle } from './state/actions';

const subTitle = (
  <span>
    Choose the components for the support bundle. The support bundle will be available for 3 days after creation.
  </span>
);

const mapStateToProps = (state: StoreState) => {
  return {
    collectors: state.supportBundles.supportBundleCollectors,
    isLoading: state.supportBundles.createBundlePageLoading,
    loadCollectorsError: state.supportBundles.loadBundlesError,
    createBundleError: state.supportBundles.createBundleError,
  };
};

const mapDispatchToProps = {
  loadSupportBundleCollectors,
  createSupportBundle,
};

const connector = connect(mapStateToProps, mapDispatchToProps);

type Props = ConnectedProps<typeof connector>;

export const SupportBundlesCreateUnconnected = ({
  collectors,
  isLoading,
  loadCollectorsError,
  createBundleError,
  loadSupportBundleCollectors,
  createSupportBundle,
}: Props): JSX.Element => {
  const onSubmit = (data: Record<string, boolean>) => {
    const selectedLabelsArray = Object.keys(data).filter((key) => data[key]);
    createSupportBundle({ collectors: selectedLabelsArray });
  };

  useEffect(() => {
    loadSupportBundleCollectors();
  }, [loadSupportBundleCollectors]);

  // turn components into a uuid -> enabled map
  const values: Record<string, boolean> = collectors.reduce((acc, curr) => {
    return { ...acc, [curr.uid]: curr.default };
  }, {});

  return (
    <Page navId="support-bundles" pageNav={{ text: 'Create support bundle' }} subTitle={subTitle}>
      <Page.Contents isLoading={isLoading}>
        <Page.OldNavOnly>
          <h3 className="page-sub-heading">Create support bundle</h3>
        </Page.OldNavOnly>
        {loadCollectorsError && <Alert title={loadCollectorsError} severity="error" />}
        {createBundleError && <Alert title={createBundleError} severity="error" />}
        {!!collectors.length && (
          <Form defaultValues={values} onSubmit={onSubmit} validateOn="onSubmit">
            {({ register, errors }) => {
              return (
                <>
                  {collectors.map((component) => {
                    return (
                      <Field key={component.uid}>
                        <Checkbox
                          {...register(component.uid)}
                          label={component.displayName}
                          id={component.uid}
                          description={component.description}
                          defaultChecked={component.default}
                          disabled={component.includedByDefault}
                        />
                      </Field>
                    );
                  })}
                  <HorizontalGroup>
                    <Button type="submit">Create</Button>
                    <LinkButton href="/support-bundles" variant="secondary">
                      Cancel
                    </LinkButton>
                  </HorizontalGroup>
                </>
              );
            }}
          </Form>
        )}
      </Page.Contents>
    </Page>
  );
};

export default connector(SupportBundlesCreateUnconnected);
