import React from "react";
import _ from "lodash";
import useTranslation from "next-translate/useTranslation";
import { Field } from "redux-form";
import { RenderTextfield } from "./renderTextfield";
import { RenderDecimalField } from "./renderDecimalField";
import { validateField } from "../validationUtils";

const isVisibleByInclusion = ({
    parentField,
    form,
    formProps,
    parentFieldShowOnValue
}) =>
    parentField != false &&
    !_.isEmpty(formProps[form]) &&
    _.has(formProps[form].values, parentField) &&
    parentFieldShowOnValue.indexOf(
        formProps[form].values[parentField].toString()
    ) > -1;

export function DecimalField(props) {
    const {
        name,
        validation,
        form,
        formProps,
        parentFieldShowOnValue,
        parentField
    } = props;

    let { t } = useTranslation();

    const showIfHasParentShowValue = isVisibleByInclusion({
        parentField,
        form,
        formProps,
        parentFieldShowOnValue
    });

    const validateDecimal = (value) => {
        if (!value) return t("newappeal:is-required-label");

        const regex = /^\d{1,6}(\.\d{1,2})?$/;

        if (!regex.test(value)) {
            return t("newappeal:invalid-decimal-label");
        }

        return undefined;
    };

    const requiredMessage = t("newappeal:is-required-label");
    const emojiNotAllowedMessage = t("newappeal:emojis-not-allowed-label");
    const invalidPostcodeMessage = t("newappeal:invalid-postcode-label");

    return (
        <>
            {parentField != false ? (
                showIfHasParentShowValue && (
                    <div className="govuk-form-group">
                        <Field
                            name={props.name}
                            id={props.name}
                            type="number"
                            className="govuk-input govuk-input--width-10"
                            spellCheck="false"
                            aria-describedby={name}
                            pattern="[0-9]*"
                            inputMode="numeric"
                            parse={Number}
                            validate={(value) =>
                                validateField(
                                    value,
                                    validation,
                                    requiredMessage,
                                    emojiNotAllowedMessage,
                                    invalidPostcodeMessage
                                )
                            }
                            component={RenderTextfield}
                            label={props.label}
                            maxFieldLength={props.maxFieldLength}
                        />
                    </div>
                )
            ) : (
                <div className="govuk-form-group">
                    <Field
                        name={props.name}
                        id={props.name}
                        type="text"
                        className="govuk-input govuk-input--width-10"
                        spellCheck="false"
                        aria-describedby={name}
                        pattern="^\d*\.?\d+$"
                        validate={[validateDecimal]}
                        component={RenderDecimalField}
                        label={props.label}
                        maxFieldLength={props.maxFieldLength}
                    />
                </div>
            )}
        </>
    );
}