/*
 * ImageAndTextLayout.tsx
 * Purpose: Implements one of the generic fallback slide layouts used when a template-specific renderer is unavailable.
 * Used by: components/slides/SlideFactory.
 * Depends on: Template styling props and inline field-edit callbacks.
 */

'use client';

import React, { useState } from 'react';
import { TemplateStyles } from '@/data/templates';

export interface ImageAndTextLayoutProps {
  title: string;
  body?: string;
  imageUrl?: string;
  styles: TemplateStyles;
  slideId?: string;
  isEditable?: boolean;
  onFieldUpdate?: (slideId: string, field: string, value: string) => void;
}

export default function ImageAndTextLayout({
  title,
  body,
  imageUrl,
  styles,
  slideId,
  isEditable = false,
  onFieldUpdate,
}: ImageAndTextLayoutProps) {
  const [editingField, setEditingField] = useState<string | null>(null);
  const [tempTitle, setTempTitle] = useState(title);
  const [tempBody, setTempBody] = useState(body || '');

  const handleBlur = (field: string) => {
    if (!slideId || !onFieldUpdate) return;
    if (field === 'title' && tempTitle !== title) onFieldUpdate(slideId, 'title', tempTitle);
    if (field === 'body' && tempBody !== body) onFieldUpdate(slideId, 'body', tempBody);
    setEditingField(null);
  };

  const handleKeyDown = (e: React.KeyboardEvent, field: string) => {
    if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); handleBlur(field); }
    if (e.key === 'Escape') {
      setEditingField(null);
      setTempTitle(title);
      setTempBody(body || '');
    }
  };

  return (
    <div
      className="w-full h-full flex relative overflow-hidden"
      style={{ backgroundColor: styles.colors.background, color: styles.colors.text }}
    >
      {styles.dotPattern && (
        <div aria-hidden className="absolute inset-0 opacity-30" style={{ background: styles.dotPattern }} />
      )}

      {/* Image Side */}
      <div
        className="w-[45%] h-full relative shrink-0"
        style={{
          backgroundColor: styles.colors.cardBg,
          borderRight: `${styles.border.width} solid ${styles.colors.border}`,
        }}
      >
        {imageUrl ? (
          <img
            src={imageUrl}
            alt={title}
            className="w-full h-full object-cover"
          />
        ) : (
          <div className="w-full h-full flex items-center justify-center" style={{ backgroundColor: styles.colors.cardBg }}>
            <span style={{ fontFamily: styles.fonts.body, fontSize: '14px', opacity: 0.5 }}>
              Image placeholder
            </span>
          </div>
        )}
      </div>

      {/* Text Side */}
      <div className="flex-1 p-10 flex flex-col justify-center relative z-10">
        {/* Title */}
        {editingField === 'title' ? (
          <input
            type="text"
            value={tempTitle}
            onChange={(e) => setTempTitle(e.target.value)}
            onBlur={() => handleBlur('title')}
            onKeyDown={(e) => handleKeyDown(e, 'title')}
            className="bg-transparent outline-none mb-6"
            style={{
              fontFamily: styles.fonts.heading,
              fontSize: '36px',
              fontWeight: 'bold',
              textTransform: 'uppercase',
              color: styles.colors.text,
              backgroundColor: styles.colors.accent,
              border: `${styles.border.width} solid ${styles.colors.border}`,
              boxShadow: styles.border.shadow,
              padding: '8px 20px',
            }}
            autoFocus
          />
        ) : (
          <h2
            className={`mb-6 ${isEditable ? 'cursor-pointer' : ''}`}
            style={{
              fontFamily: styles.fonts.heading,
              fontSize: '36px',
              fontWeight: 'bold',
              textTransform: 'uppercase',
              color: styles.colors.text,
              display: 'inline-block',
              alignSelf: 'flex-start',
              backgroundColor: styles.colors.accent,
              border: `${styles.border.width} solid ${styles.colors.border}`,
              boxShadow: styles.border.shadow,
              padding: '8px 20px',
            }}
            onClick={() => { if (isEditable) { setEditingField('title'); setTempTitle(title); } }}
          >
            {title}
          </h2>
        )}

        {/* Body text */}
        {editingField === 'body' ? (
          <textarea
            value={tempBody}
            onChange={(e) => setTempBody(e.target.value)}
            onBlur={() => handleBlur('body')}
            onKeyDown={(e) => handleKeyDown(e, 'body')}
            className="bg-transparent outline-none resize-none flex-1"
            style={{
              fontFamily: styles.fonts.body,
              fontSize: '17px',
              color: styles.colors.text,
              lineHeight: 1.7,
              opacity: 0.85,
            }}
            autoFocus
          />
        ) : (
          <p
            className={`${isEditable ? 'cursor-pointer hover:opacity-70' : ''}`}
            style={{
              fontFamily: styles.fonts.body,
              fontSize: '17px',
              color: styles.colors.text,
              lineHeight: 1.7,
              opacity: 0.85,
            }}
            onClick={() => { if (isEditable) { setEditingField('body'); setTempBody(body || ''); } }}
          >
            {body || (isEditable ? 'Click to add description' : '')}
          </p>
        )}
      </div>
    </div>
  );
}