// This is a wrapper for the Ant Switch component.
// This one is styled to match the form-textfield component.
// If `useSubmit` is true then it will automatically post to the config API onChange.

import React, { useState, useContext, FC } from 'react';
import { Switch } from 'antd';
import {
  createInputStatus,
  StatusState,
  STATUS_ERROR,
  STATUS_PROCESSING,
  STATUS_SUCCESS,
} from '../../utils/input-statuses';
import { FormStatusIndicator } from './FormStatusIndicator';

import { RESET_TIMEOUT, postConfigUpdateToAPI } from '../../utils/config-constants';
import { ServerStatusContext } from '../../utils/server-status-context';

export type ToggleSwitchProps = {
  fieldName: string;

  apiPath?: string;
  checked?: boolean;
  reversed?: boolean;
  configPath?: string;
  disabled?: boolean;
  label?: string;
  tip?: string;
  useSubmit?: boolean;
  onChange?: (arg: boolean) => void;
};

export const ToggleSwitch: FC<ToggleSwitchProps> = ({
  apiPath,
  checked,
  reversed = false,
  configPath = '',
  disabled = false,
  fieldName,
  label,
  tip,
  useSubmit,
  onChange,
}) => {
  const [submitStatus, setSubmitStatus] = useState<StatusState>(null);

  let resetTimer = null;

  const serverStatusData = useContext(ServerStatusContext);
  const { setFieldInConfigState } = serverStatusData || {};

  const resetStates = () => {
    setSubmitStatus(null);
    clearTimeout(resetTimer);
    resetTimer = null;
  };

  const handleChange = async (isChecked: boolean) => {
    if (useSubmit) {
      setSubmitStatus(createInputStatus(STATUS_PROCESSING));
      const isCheckedSend = reversed ? !isChecked : isChecked;

      await postConfigUpdateToAPI({
        apiPath,
        data: { value: isCheckedSend },
        onSuccess: () => {
          setFieldInConfigState({ fieldName, value: isCheckedSend, path: configPath });
          setSubmitStatus(createInputStatus(STATUS_SUCCESS));
        },
        onError: (message: string) => {
          setSubmitStatus(createInputStatus(STATUS_ERROR, `There was an error: ${message}`));
        },
      });
      resetTimer = setTimeout(resetStates, RESET_TIMEOUT);
    }
    if (onChange) {
      onChange(isChecked);
    }
  };

  const loading = submitStatus !== null && submitStatus.type === STATUS_PROCESSING;
  return (
    <div className="formfield-container toggleswitch-container">
      {label && (
        <div className="label-side">
          <span className="formfield-label">{label}</span>
        </div>
      )}

      <div className="input-side">
        <div className="input-group">
          <Switch
            className={`switch field-${fieldName}`}
            loading={loading}
            onChange={handleChange}
            defaultChecked={checked}
            checked={checked}
            checkedChildren="ON"
            unCheckedChildren="OFF"
            disabled={disabled}
          />
          <FormStatusIndicator status={submitStatus} />
        </div>
        <p className="field-tip">{tip}</p>
      </div>
    </div>
  );
};
export default ToggleSwitch;

ToggleSwitch.defaultProps = {
  apiPath: '',
  checked: false,
  reversed: false,
  configPath: '',
  disabled: false,
  label: '',
  tip: '',
  useSubmit: false,
  onChange: null,
};