import React, { useId } from 'react';
import { X, Eye, EyeOff } from 'lucide-react';

interface FilledInputProps {
    label: string;
    value: string | number;
    onChange: (e: React.ChangeEvent<HTMLInputElement>) => void;
    onClear?: () => void;
    onFocus?: (e: React.FocusEvent<HTMLInputElement>) => void;
    onBlur?: (e: React.FocusEvent<HTMLInputElement>) => void;
    type?: string;
    icon?: React.ReactNode;
    autoFocus?: boolean;
    step?: string;
    inputMode?: "search" | "text" | "email" | "tel" | "url" | "none" | "numeric" | "decimal";
    autocapitalize?: "off" | "none" | "on" | "sentences" | "words" | "characters";
    autoComplete?: string;
    rightElement?: React.ReactNode;
    multiline?: boolean;
    rows?: number;
    showPasswordToggle?: boolean;
}

const FilledInput: React.FC<FilledInputProps> = ({
    label, value, onChange, onClear, onFocus, onBlur, type = "number", icon,
    autoFocus, step, inputMode, autocapitalize, autoComplete, rightElement,
    multiline = false, rows = 3, showPasswordToggle = false
}) => {
    const id = useId();
    const inputRef = React.useRef<HTMLInputElement | HTMLTextAreaElement>(null);
    const [showPassword, setShowPassword] = React.useState(false);

    const actualType = type === 'password' && showPassword ? 'text' : type;

    const handleClear = () => {
        const syntheticEvent = {
            target: { value: '' }
        } as React.ChangeEvent<HTMLInputElement>;
        onChange(syntheticEvent);
        if (onClear) onClear();
        inputRef.current?.focus();
    };

    return (
        <div className="relative group bg-surface-container-high rounded-t-[4px] border-b border-on-surface-variant hover:bg-on-surface/10 focus-within:border-primary focus-within:border-b-2 transition-colors min-h-[56px]">
            <label htmlFor={id} className="absolute top-2 left-4 text-label-sm font-medium text-on-surface-variant flex items-center gap-1 group-focus-within:text-primary">
                {icon ? <>{icon} {label}</> : label}
            </label>

            {!multiline ? (
                <input
                    ref={inputRef as React.RefObject<HTMLInputElement>}
                    id={id}
                    type={actualType}
                    step={step}
                    inputMode={inputMode || (type === 'number' ? 'decimal' : 'text')}
                    autoFocus={autoFocus}
                    className={`w-full h-[56px] pt-5 pb-1 pl-4 bg-transparent text-body-lg text-on-surface focus:outline-none placeholder-transparent ${rightElement ? 'pr-20' : (showPasswordToggle && type === 'password' ? 'pr-20' : 'pr-10')}`}
                    placeholder=" "
                    value={value}
                    onChange={onChange}
                    onFocus={onFocus}
                    onBlur={onBlur}
                    autoCapitalize={autocapitalize}
                    autoComplete={autoComplete}
                />
            ) : (
                <textarea
                    ref={inputRef as React.RefObject<HTMLTextAreaElement>}
                    id={id}
                    rows={rows}
                    className={`w-full pt-6 pb-2 pl-4 bg-transparent text-body-lg text-on-surface focus:outline-none placeholder-transparent resize-none ${rightElement ? 'pr-20' : 'pr-10'}`}
                    placeholder=" "
                    value={value}
                    onChange={onChange as any}
                    onFocus={onFocus as any}
                    onBlur={onBlur as any}
                    autoCapitalize={autocapitalize}
                />
            )}

            {value !== '' && value !== 0 && (
                <button
                    type="button"
                    onClick={handleClear}
                    aria-label="Clear input"
                    className={`absolute top-1/2 -translate-y-1/2 p-2 text-on-surface-variant hover:text-on-surface rounded-full transition-opacity ${(rightElement || (showPasswordToggle && type === 'password')) ? 'right-12' : 'right-2'}`}
                    tabIndex={-1}
                >
                    <X size={16} />
                </button>
            )}

            {showPasswordToggle && type === 'password' && (
                <button
                    type="button"
                    onClick={() => setShowPassword(!showPassword)}
                    aria-label="Toggle visibility"
                    className="absolute top-1/2 -translate-y-1/2 right-2 p-2 text-on-surface-variant hover:text-on-surface rounded-full transition-opacity"
                    tabIndex={-1}
                >
                    {showPassword ? <EyeOff size={20} /> : <Eye size={20} />}
                </button>
            )}
            {
                rightElement && (
                    <div className="absolute right-2 top-1/2 -translate-y-1/2 z-10">
                        {rightElement}
                    </div>
                )
            }
        </div >
    );
};

export default FilledInput;
