import React, { useState, useContext, useEffect, FC } from 'react';
import { Typography } from 'antd';
import {
  TextFieldWithSubmit,
  TEXTFIELD_TYPE_TEXTAREA,
  TEXTFIELD_TYPE_URL,
} from './TextFieldWithSubmit';
import { ServerStatusContext } from '../../utils/server-status-context';
import {
  postConfigUpdateToAPI,
  TEXTFIELD_PROPS_INSTANCE_URL,
  TEXTFIELD_PROPS_SERVER_NAME,
  TEXTFIELD_PROPS_SERVER_SUMMARY,
  TEXTFIELD_PROPS_SERVER_OFFLINE_MESSAGE,
  API_YP_SWITCH,
  FIELD_PROPS_YP,
  FIELD_PROPS_NSFW,
  FIELD_PROPS_HIDE_VIEWER_COUNT,
} from '../../utils/config-constants';
import { UpdateArgs } from '../../types/config-section';
import { ToggleSwitch } from './ToggleSwitch';
import { EditLogo } from './EditLogo';

const { Title } = Typography;

export const EditInstanceDetails: FC = () => {
  const [formDataValues, setFormDataValues] = useState(null);
  const serverStatusData = useContext(ServerStatusContext);
  const { serverConfig } = serverStatusData || {};

  const { instanceDetails, yp } = serverConfig;
  const { instanceUrl } = yp;

  useEffect(() => {
    setFormDataValues({
      ...instanceDetails,
      ...yp,
    });
  }, [instanceDetails, yp]);

  if (!formDataValues) {
    return null;
  }

  // if instanceUrl is empty, we should also turn OFF the `enabled` field of directory.
  const handleSubmitInstanceUrl = () => {
    if (formDataValues.instanceUrl === '') {
      if (yp.enabled === true) {
        postConfigUpdateToAPI({
          apiPath: API_YP_SWITCH,
          data: { value: false },
        });
      }
    }
  };

  const handleFieldChange = ({ fieldName, value }: UpdateArgs) => {
    setFormDataValues({
      ...formDataValues,
      [fieldName]: value,
    });
  };

  function handleHideViewerCountChange(enabled: boolean) {
    handleFieldChange({ fieldName: 'hideViewerCount', value: enabled });
  }

  const hasInstanceUrl = instanceUrl !== '';

  return (
    <div className="edit-general-settings">
      <Title level={3} className="section-title">
        Configure Instance Details
      </Title>
      <br />

      <TextFieldWithSubmit
        fieldName="name"
        {...TEXTFIELD_PROPS_SERVER_NAME}
        value={formDataValues.name}
        initialValue={instanceDetails.name}
        onChange={handleFieldChange}
      />

      <TextFieldWithSubmit
        fieldName="instanceUrl"
        {...TEXTFIELD_PROPS_INSTANCE_URL}
        value={formDataValues.instanceUrl}
        initialValue={yp.instanceUrl}
        type={TEXTFIELD_TYPE_URL}
        onChange={handleFieldChange}
        onSubmit={handleSubmitInstanceUrl}
      />

      <TextFieldWithSubmit
        fieldName="summary"
        {...TEXTFIELD_PROPS_SERVER_SUMMARY}
        type={TEXTFIELD_TYPE_TEXTAREA}
        value={formDataValues.summary}
        initialValue={instanceDetails.summary}
        onChange={handleFieldChange}
      />

      <TextFieldWithSubmit
        fieldName="offlineMessage"
        {...TEXTFIELD_PROPS_SERVER_OFFLINE_MESSAGE}
        type={TEXTFIELD_TYPE_TEXTAREA}
        value={formDataValues.offlineMessage}
        initialValue={instanceDetails.offlineMessage}
        onChange={handleFieldChange}
      />

      {/* Logo section */}
      <EditLogo />

      <ToggleSwitch
        fieldName="hideViewerCount"
        useSubmit
        {...FIELD_PROPS_HIDE_VIEWER_COUNT}
        checked={formDataValues.hideViewerCount}
        onChange={handleHideViewerCountChange}
      />

      <br />
      <p className="description">
        Increase your audience by appearing in the{' '}
        <a href="https://directory.owncast.online" target="_blank" rel="noreferrer">
          <strong>Owncast Directory</strong>
        </a>
        . This is an external service run by the Owncast project.{' '}
        <a
          href="https://owncast.online/docs/directory/?source=admin"
          target="_blank"
          rel="noopener noreferrer"
        >
          Learn more
        </a>
        .
      </p>
      {!yp.instanceUrl && (
        <p className="description">
          You must set your <strong>Server URL</strong> above to enable the directory.
        </p>
      )}

      <div className="config-yp-container">
        <ToggleSwitch
          fieldName="enabled"
          useSubmit
          {...FIELD_PROPS_YP}
          checked={formDataValues.enabled}
          disabled={!hasInstanceUrl}
        />
        <ToggleSwitch
          fieldName="nsfw"
          useSubmit
          {...FIELD_PROPS_NSFW}
          checked={formDataValues.nsfw}
          disabled={!hasInstanceUrl}
        />
      </div>
    </div>
  );
};