'use client';

import { useState, useRef, useEffect } from 'react';
import { useTranslations } from 'next-intl';

interface HelpTooltipProps {
    shortText: string; // Text für Hover
    longText: string; // Text für Click/Modal
    position?: 'top' | 'bottom' | 'left' | 'right';
}

export default function HelpTooltip({ shortText, longText, position = 'top' }: HelpTooltipProps) {
    const t = useTranslations('CuratorHelp');
    const [showHover, setShowHover] = useState(false);
    const [showModal, setShowModal] = useState(false);
    const tooltipRef = useRef<HTMLDivElement>(null);
    const buttonRef = useRef<HTMLButtonElement>(null);

    useEffect(() => {
        function handleClickOutside(event: MouseEvent) {
            if (
                tooltipRef.current &&
                !tooltipRef.current.contains(event.target as Node) &&
                buttonRef.current &&
                !buttonRef.current.contains(event.target as Node)
            ) {
                setShowModal(false);
            }
        }

        if (showModal) {
            document.addEventListener('mousedown', handleClickOutside);
            return () => {
                document.removeEventListener('mousedown', handleClickOutside);
            };
        }
    }, [showModal]);

    const positionStyles = {
        top: { bottom: '100%', left: '50%', transform: 'translateX(-50%)', marginBottom: '0.5rem' },
        bottom: { top: '100%', left: '50%', transform: 'translateX(-50%)', marginTop: '0.5rem' },
        left: { right: '100%', top: '50%', transform: 'translateY(-50%)', marginRight: '0.5rem' },
        right: { left: '100%', top: '50%', transform: 'translateY(-50%)', marginLeft: '0.5rem' },
    };

    return (
        <div style={{ position: 'relative', display: 'inline-block' }}>
            <button
                ref={buttonRef}
                type="button"
                onClick={() => setShowModal(!showModal)}
                onMouseEnter={() => setShowHover(true)}
                onMouseLeave={() => setShowHover(false)}
                style={{
                    background: 'none',
                    border: 'none',
                    cursor: 'pointer',
                    color: '#6b7280',
                    fontSize: '1rem',
                    padding: '0.25rem',
                    display: 'inline-flex',
                    alignItems: 'center',
                    justifyContent: 'center',
                    borderRadius: '50%',
                    width: '1.5rem',
                    height: '1.5rem',
                    transition: 'background-color 0.2s',
                }}
                onMouseOver={(e) => {
                    e.currentTarget.style.backgroundColor = '#f3f4f6';
                }}
                onMouseOut={(e) => {
                    e.currentTarget.style.backgroundColor = 'transparent';
                }}
                aria-label="Help"
            >
                ℹ
            </button>

            {/* Hover Tooltip */}
            {showHover && !showModal && (
                <div
                    ref={tooltipRef}
                    style={{
                        position: 'absolute',
                        ...positionStyles[position],
                        background: '#1f2937',
                        color: 'white',
                        padding: '0.5rem 0.75rem',
                        borderRadius: '0.375rem',
                        fontSize: '0.875rem',
                        whiteSpace: 'normal',
                        zIndex: 1000,
                        pointerEvents: 'none',
                        maxWidth: '250px',
                    }}
                >
                    {shortText}
                    <div
                        style={{
                            position: 'absolute',
                            ...(position === 'top' && { top: '100%', left: '50%', transform: 'translateX(-50%)', borderLeft: '6px solid transparent', borderRight: '6px solid transparent', borderTop: '6px solid #1f2937' }),
                            ...(position === 'bottom' && { bottom: '100%', left: '50%', transform: 'translateX(-50%)', borderLeft: '6px solid transparent', borderRight: '6px solid transparent', borderBottom: '6px solid #1f2937' }),
                            ...(position === 'left' && { left: '100%', top: '50%', transform: 'translateY(-50%)', borderTop: '6px solid transparent', borderBottom: '6px solid transparent', borderLeft: '6px solid #1f2937' }),
                            ...(position === 'right' && { right: '100%', top: '50%', transform: 'translateY(-50%)', borderTop: '6px solid transparent', borderBottom: '6px solid transparent', borderRight: '6px solid #1f2937' }),
                        }}
                    />
                </div>
            )}

            {/* Modal für detaillierte Informationen */}
            {showModal && (
                <>
                    {/* Overlay */}
                    <div
                        style={{
                            position: 'fixed',
                            top: 0,
                            left: 0,
                            right: 0,
                            bottom: 0,
                            background: 'rgba(0, 0, 0, 0.5)',
                            zIndex: 9998,
                        }}
                        onClick={() => setShowModal(false)}
                    />
                    {/* Modal Content */}
                    <div
                        ref={tooltipRef}
                        style={{
                            position: 'fixed',
                            top: '50%',
                            left: '50%',
                            transform: 'translate(-50%, -50%)',
                            background: 'white',
                            padding: '1.5rem',
                            borderRadius: '0.5rem',
                            boxShadow: '0 10px 25px rgba(0, 0, 0, 0.2)',
                            maxWidth: '500px',
                            width: '90%',
                            maxHeight: '80vh',
                            overflowY: 'auto',
                            zIndex: 9999,
                        }}
                        onClick={(e) => e.stopPropagation()}
                    >
                        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'start', marginBottom: '1rem' }}>
                            <h3 style={{ margin: 0, fontSize: '1.25rem', fontWeight: 'bold' }}>{t('modalTitle')}</h3>
                            <button
                                type="button"
                                onClick={() => setShowModal(false)}
                                style={{
                                    background: 'none',
                                    border: 'none',
                                    fontSize: '1.5rem',
                                    cursor: 'pointer',
                                    color: '#6b7280',
                                    padding: '0',
                                    lineHeight: '1',
                                }}
                                aria-label="Close"
                            >
                                ×
                            </button>
                        </div>
                        <div style={{ fontSize: '0.9rem', lineHeight: '1.6', whiteSpace: 'pre-wrap' }}>
                            {longText}
                        </div>
                    </div>
                </>
            )}
        </div>
    );
}