/**
 * Plans2DView - Display 2D plans (assembly, side, top views)
 * With tabs for different views and export options
 */
import { useState, useEffect, useCallback } from 'react';
import CuttingListTable from './CuttingListTable';
import styles from './Plans2DView.module.css';

const API_BASE = import.meta.env.VITE_API_URL || 'http://localhost:3001';

export default function Plans2DView({ config, modules = [], colors = {}, onClose }) {
  const [activeTab, setActiveTab] = useState('assembly');
  const [plans, setPlans] = useState(null);
  const [cuttingList, setCuttingList] = useState(null);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState(null);

  // Fetch plans and cutting list
  useEffect(() => {
    const fetchData = async () => {
      setLoading(true);
      setError(null);
      
      try {
        // Fetch plans
        const plansRes = await fetch(`${API_BASE}/api/plans/generate`, {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ config, modules, colors })
        });
        const plansData = await plansRes.json();
        
        if (plansData.success) {
          setPlans(plansData.plans);
        }
        
        // Fetch cutting list
        const cutRes = await fetch(`${API_BASE}/api/plans/cutting-list`, {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ config, modules, colors })
        });
        const cutData = await cutRes.json();
        
        if (cutData.success) {
          setCuttingList(cutData.cuttingList);
        }
        
      } catch (err) {
        console.error('Error fetching plans:', err);
        setError('Erreur lors de la génération des plans');
      } finally {
        setLoading(false);
      }
    };
    
    fetchData();
  }, [config, modules, colors]);

  // Export handlers
  const handleExport = useCallback(async (format) => {
    try {
      if (format === 'text') {
        const res = await fetch(`${API_BASE}/api/plans/export-text`, {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ config, modules, colors })
        });
        const blob = await res.blob();
        const url = URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url;
        a.download = 'liste-debitage.txt';
        a.click();
        URL.revokeObjectURL(url);
        
      } else if (format === 'pdf') {
        const res = await fetch(`${API_BASE}/api/plans/export-pdf`, {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ config, modules, colors })
        });
        const html = await res.text();
        
        // Open in new window for printing
        const printWindow = window.open('', '_blank');
        printWindow.document.write(html);
        printWindow.document.close();
        printWindow.onload = () => {
          printWindow.print();
        };
      }
    } catch (err) {
      console.error('Export error:', err);
      alert('Erreur lors de l\'export');
    }
  }, [config, modules, colors]);

  const tabs = [
    { id: 'assembly', label: 'Vue de face' },
    { id: 'side', label: 'Vue de côté' },
    { id: 'top', label: 'Vue de dessus' },
    { id: 'cutting', label: 'Liste de débitage' }
  ];

  return (
    <div className={styles.overlay}>
      <div className={styles.modal}>
        <div className={styles.header}>
          <h2 className={styles.title}>Plans de fabrication</h2>
          <button className={styles.closeBtn} onClick={onClose}>×</button>
        </div>

        <div className={styles.tabs}>
          {tabs.map(tab => (
            <button
              key={tab.id}
              className={`${styles.tab} ${activeTab === tab.id ? styles.active : ''}`}
              onClick={() => setActiveTab(tab.id)}
            >
              {tab.label}
            </button>
          ))}
        </div>

        <div className={styles.content}>
          {loading ? (
            <div className={styles.loading}>Génération des plans...</div>
          ) : error ? (
            <div className={styles.error}>{error}</div>
          ) : (
            <>
              {activeTab === 'assembly' && plans?.assembly && (
                <div 
                  className={styles.planContainer}
                  dangerouslySetInnerHTML={{ __html: plans.assembly }}
                />
              )}
              
              {activeTab === 'side' && plans?.side && (
                <div 
                  className={styles.planContainer}
                  dangerouslySetInnerHTML={{ __html: plans.side }}
                />
              )}
              
              {activeTab === 'top' && plans?.top && (
                <div 
                  className={styles.planContainer}
                  dangerouslySetInnerHTML={{ __html: plans.top }}
                />
              )}
              
              {activeTab === 'cutting' && (
                <CuttingListTable 
                  cuttingList={cuttingList}
                  onExport={handleExport}
                />
              )}
            </>
          )}
        </div>

        <div className={styles.footer}>
          <div className={styles.specs}>
            <span>{config.widthMm} × {config.heightMm} × {config.depthMm} mm</span>
            <span>•</span>
            <span>{config.installationType === 'niche' ? 'Encastrée' : 'Libre'}</span>
            <span>•</span>
            <span>{config.doorType === 'sliding' ? 'Coulissantes' : 'Battantes'}</span>
          </div>
          <div className={styles.actions}>
            <button 
              className={styles.exportBtn}
              onClick={() => handleExport('pdf')}
            >
              Imprimer / PDF
            </button>
          </div>
        </div>
      </div>
    </div>
  );
}