/*
 This file is part of GNU Taler
 (C) 2021 Taler Systems S.A.

 GNU Taler is free software; you can redistribute it and/or modify it under the
 terms of the GNU General Public License as published by the Free Software
 Foundation; either version 3, or (at your option) any later version.

 GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along with
 GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
 */

/**
*
* @author Sebastian Javier Marchano (sebasjm)
*/
import { ComponentChildren, h, VNode } from "preact";
import { useField, InputProps } from "./useField.js";

interface Props<T> extends InputProps<T> {
  inputType?: 'text' | 'number' | 'multiline' | 'password';
  expand?: boolean;
  toStr?: (v?: any) => string;
  fromStr?: (s: string) => any;
  inputExtra?: any,
  side?: ComponentChildren;
  children?: ComponentChildren;
}

const defaultToString = (f?: any): string => f || ''
const defaultFromString = (v: string): any => v as any

const TextInput = ({ inputType, error, ...rest }: any) => inputType === 'multiline' ?
  <textarea {...rest} class={error ? "textarea is-danger" : "textarea"} rows="3" /> :
  <input {...rest} class={error ? "input is-danger" : "input"} type={inputType} />;

export function Input<T>({ name, readonly, placeholder, tooltip, label, expand, help, children, inputType, inputExtra, side, fromStr = defaultFromString, toStr = defaultToString }: Props<keyof T>): VNode {
  const { error, value, onChange, required } = useField<T>(name);
  return <div class="field is-horizontal">
    <div class="field-label is-normal">
      <label class="label">
        {label}
        {tooltip && <span class="icon has-tooltip-right" data-tooltip={tooltip}>
          <i class="mdi mdi-information" />
        </span>}
      </label>
    </div>
    <div class="field-body is-flex-grow-3">
      <div class="field">
        <p class={expand ? "control is-expanded has-icons-right" : "control has-icons-right"}>
          <TextInput error={error} {...inputExtra}
            inputType={inputType}
            placeholder={placeholder} readonly={readonly}
            name={String(name)} value={toStr(value)}
            onChange={(e: h.JSX.TargetedEvent<HTMLInputElement>): void => onChange(fromStr(e.currentTarget.value))} />
          {help}
          {children}
          { required && <span class="icon has-text-danger is-right">
            <i class="mdi mdi-alert" />
          </span> }
        </p>
        {error && <p class="help is-danger">{error}</p>}
      </div>
      {side}
    </div>
  </div>;
}