/* eslint-disable i18next/no-literal-string */
import React from 'react';
import { Input, Icon } from 'UI';
import { Button } from 'antd';
import { observer } from 'mobx-react-lite';
import { useStore } from 'App/mstore';
import cn from 'classnames';
import { Rollout, Payload } from './Helpers';
import { useTranslation } from 'react-i18next';

const alphabet = [
  'A',
  'B',
  'C',
  'D',
  'E',
  'F',
  'G',
  'H',
  'I',
  'J',
  'K',
  'L',
  'M',
  'N',
  'O',
  'P',
  'Q',
  'R',
  'S',
  'T',
  'U',
  'V',
  'W',
  'X',
  'Y',
  'Z',
];

function Multivariant({ readonly }: { readonly?: boolean }) {
  const { t } = useTranslation();
  const { featureFlagsStore } = useStore();

  const avg = React.useMemo(
    () => Math.floor(100 / featureFlagsStore.currentFflag!.variants.length),
    [featureFlagsStore.currentFflag!.variants.length],
  );

  return (
    <div>
      <div className="text-sm text-disabled-text mt-1 flex items-center gap-1">
        {t("Users who meet release conditions will be server variant's")}
        <code className="p-1 text-red rounded bg-gray-lightest">key</code>&nbsp;
        {t('based on specific distribution.')}
      </div>
      <div className="flex items-center gap-2 font-semibold mt-4">
        <div style={{ flex: 1 }}>{t('Variant')}</div>
        <div style={{ flex: 4 }}>{t('Key')}</div>
        <div style={{ flex: 4 }}>{t('Description')}</div>
        <div style={{ flex: 4 }}>
          <Payload />
        </div>
        <div style={{ flex: 4 }} className="flex items-center">
          <Rollout />
          {readonly ? null : (
            <div
              className="ml-auto text-main font-normal cursor-pointer mr-10 hover:underline"
              onClick={featureFlagsStore.currentFflag!.redistributeVariants}
            >
              {t('Distribute Equally')}
            </div>
          )}
        </div>
      </div>
      <div>
        {featureFlagsStore.currentFflag!.variants.map((variant, ind) => (
          <div className="flex items-center gap-2 my-2 " key={variant.index}>
            <div style={{ flex: 1 }}>
              <div className="p-2 text-center bg-gray-lightest rounded-full w-10 h-10">
                {alphabet[ind] || ind + 1}
              </div>
            </div>
            <div style={{ flex: 4 }}>
              {readonly ? (
                <code className="p-1 text-red rounded bg-gray-lightest">
                  {variant.value}
                </code>
              ) : (
                <Input
                  placeholder={`buy-btn-variant-${ind + 1}`}
                  value={variant.value}
                  onChange={(e: React.ChangeEvent<HTMLInputElement>) => {
                    if (e.target.value?.length > 25) return;
                    variant.setKey(e.target.value);
                  }}
                />
              )}
            </div>
            <div style={{ flex: 4 }}>
              {readonly ? (
                <div>{variant.description}</div>
              ) : (
                <Input
                  placeholder={t('Enter here...')}
                  value={variant.description}
                  onChange={(e: React.ChangeEvent<HTMLInputElement>) =>
                    variant.setDescription(e.target.value)
                  }
                />
              )}
            </div>
            <div style={{ flex: 4 }}>
              {readonly ? (
                <code className="p-1 text-red rounded bg-gray-lightest">
                  {variant.payload}
                </code>
              ) : (
                <Input
                  placeholder={t("E.g. red button, {'buttonColor': 'red'}")}
                  value={variant.payload}
                  onChange={(e: React.ChangeEvent<HTMLInputElement>) =>
                    variant.setPayload(e.target.value)
                  }
                />
              )}
            </div>
            <div style={{ flex: 4 }} className="flex items-center gap-2">
              {readonly ? (
                <div>{variant.rolloutPercentage}</div>
              ) : (
                <>
                  <Input
                    className="!flex-1"
                    type="tel"
                    wrapperClassName="flex-1"
                    placeholder={avg}
                    value={variant.rolloutPercentage}
                    onChange={(e: React.ChangeEvent<HTMLInputElement>) => {
                      if (e.target.value === '') variant.setRollout(0);
                      variant.setRollout(
                        parseInt(e.target.value.replace(/\D/g, ''), 10),
                      );
                    }}
                  />
                  <div
                    className={cn(
                      'p-2 cursor-pointer rounded',
                      featureFlagsStore.currentFflag!.variants.length === 1
                        ? 'cursor-not-allowed'
                        : 'hover:bg-teal-light',
                    )}
                    onClick={() =>
                      featureFlagsStore.currentFflag!.variants.length === 1
                        ? null
                        : featureFlagsStore.currentFflag!.removeVariant(
                            variant.index,
                          )
                    }
                  >
                    <Icon
                      name="trash"
                      color={
                        featureFlagsStore.currentFflag!.variants.length === 1
                          ? ''
                          : 'main'
                      }
                    />
                  </div>
                </>
              )}
            </div>
          </div>
        ))}
      </div>
      {readonly ? null : (
        <div className="mt-2 flex justify-between w-full">
          {featureFlagsStore.currentFflag!.variants.length < 10 ? (
            <Button
              type="text"
              onClick={featureFlagsStore.currentFflag!.addVariant}
            >
              +&nbsp;{t('Add Variant')}
            </Button>
          ) : null}
          {featureFlagsStore.currentFflag!.isRedDistribution ? (
            <div className="text-red mr-10">
              {t('Total distribution is less than 100%.')}
            </div>
          ) : null}
        </div>
      )}
    </div>
  );
}

export default observer(Multivariant);