invy/frontend/src/components/DuplicateManager.jsx

import { useState, useEffect } from 'react'
import { getDuplicates, mergeGuests } from '../api/api'
import './DuplicateManager.css'

function DuplicateManager({ eventId, onUpdate, onClose }) {
  const [duplicates, setDuplicates] = useState([])
  const [loading, setLoading] = useState(true)
  const [selectedKeep, setSelectedKeep] = useState({})
  const [merging, setMerging] = useState(false)
  const [duplicateBy, setDuplicateBy] = useState('phone') // 'phone' or 'name'

  useEffect(() => {
    loadDuplicates()
  }, [duplicateBy])

  const loadDuplicates = async () => {
    try {
      setLoading(true)
      const response = await getDuplicates(eventId, duplicateBy)
      setDuplicates(response.duplicates || [])
    } catch (error) {
      console.error('Error loading duplicates:', error)
      alert('שגיאה בטעינת כפילויות')
    } finally {
      setLoading(false)
    }
  }

  const handleMerge = async (key, guests) => {
    const keepId = selectedKeep[key]
    if (!keepId) {
      alert('אנא בחר איזה אורח לשמור')
      return
    }

    const mergeIds = guests
      .filter(g => g.id !== keepId)
      .map(g => g.id)

    if (mergeIds.length === 0) {
      alert('לא נבחרו אורחים למיזוג')
      return
    }

    if (!window.confirm(`האם למזג ${mergeIds.length} אורחים לאורח הנבחר?`)) {
      return
    }

    try {
      setMerging(true)
      await mergeGuests(eventId, keepId, mergeIds)
      alert('האורחים מוזגו בהצלחה!')
      await loadDuplicates()
      if (onUpdate) onUpdate()
    } catch (error) {
      console.error('Error merging guests:', error)
      alert('שגיאה במיזוג אורחים')
    } finally {
      setMerging(false)
    }
  }

  if (loading) {
    return (
      <div className="duplicate-manager">
        <div className="duplicate-header">
          <h2>🔍 ניהול כפילויות</h2>
          <button className="btn-close" onClick={onClose}>✕</button>
        </div>
        <div className="duplicate-controls">
          <label>חפש כפילויות לפי:</label>
          <select value={duplicateBy} onChange={(e) => setDuplicateBy(e.target.value)}>
            <option value="phone">מספר טלפון</option>
            <option value="name">שם מלא</option>
          </select>
        </div>
        <div className="loading">טוען כפילויות...</div>
      </div>
    )
  }

  if (duplicates.length === 0) {
    return (
      <div className="duplicate-manager">
        <div className="duplicate-header">
          <h2>🔍 ניהול כפילויות</h2>
          <button className="btn-close" onClick={onClose}>✕</button>
        </div>
        <div className="duplicate-controls">
          <label>חפש כפילויות לפי:</label>
          <select value={duplicateBy} onChange={(e) => setDuplicateBy(e.target.value)}>
            <option value="phone">מספר טלפון</option>
            <option value="name">שם מלא</option>
          </select>
        </div>
        <div className="no-duplicates">
          <p>✅ לא נמצאו כפילויות! כל האורחים ייחודיים.</p>
        </div>
      </div>
    )
  }

  return (
    <div className="duplicate-manager" dir="rtl">
      <div className="duplicate-header">
        <h2>🔍 ניהול כפילויות ({duplicates.length} {duplicateBy === 'phone' ? 'מספרי טלפון' : 'שמות'})</h2>
        <button className="btn-close" onClick={onClose}>✕</button>
      </div>

      <div className="duplicate-controls">
        <label>חפש כפילויות לפי:</label>
        <select value={duplicateBy} onChange={(e) => setDuplicateBy(e.target.value)}>
          <option value="phone">מספר טלפון</option>
          <option value="name">שם מלא</option>
        </select>
      </div>

      <div className="duplicates-list">
        {duplicates.map((dup, index) => (
          <div key={index} className="duplicate-group">
            <div className="duplicate-info">
              <h3>{duplicateBy === 'phone' ? `📞 ${dup.phone_number}` : `👤 ${dup.first_name} ${dup.last_name}`}</h3>
              <span className="count-badge">{dup.count} אורחים</span>
            </div>

            <div className="guests-grid">
              {dup.guests.map((guest) => (
                <div
                  key={guest.id}
                  className={`guest-card ${selectedKeep[dup.key] === guest.id ? 'selected' : ''}`}
                  onClick={() => setSelectedKeep({...selectedKeep, [dup.key]: guest.id})}
                >
                  <div className="radio-wrapper">
                    <input
                      type="radio"
                      name={`keep-${dup.key}`}
                      checked={selectedKeep[dup.key] === guest.id}
                      onChange={() => setSelectedKeep({...selectedKeep, [dup.key]: guest.id})}
                    />
                    <label>שמור אורח זה</label>
                  </div>
                  <div className="guest-details">
                    <h4>{guest.first_name} {guest.last_name}</h4>
                    <p><strong>אימייל:</strong> {guest.email || '-'}</p>
                    <p><strong>טלפון:</strong> {guest.phone_number || '-'}</p>
                    <p><strong>אישור:</strong> {guest.rsvp_status}</p>
                    <p><strong>ארוחה:</strong> {guest.meal_preference || '-'}</p>
                    <p><strong>פלאס ואן:</strong> {guest.has_plus_one ? `כן${guest.plus_one_name ? ` (${guest.plus_one_name})` : ''}` : 'לא'}</p>
                    <p><strong>שולחן:</strong> {guest.table_number || '-'}</p>
                    <p className="owner-tag"><strong>מקור:</strong> {guest.owner || '-'}</p>
                  </div>
                </div>
              ))}
            </div>

            <div className="merge-actions">
              <button
                className="btn btn-primary"
                onClick={() => handleMerge(dup.key, dup.guests)}
                disabled={!selectedKeep[dup.key] || merging}
              >
                {merging ? 'ממזג...' : `🔗 מזג אורחים`}
              </button>
            </div>
          </div>
        ))}
      </div>
    </div>
  )
}

export default DuplicateManager