/**
 * Layout optimization routes
 */
import { optimizeLayout, quickOptimize, suggestInitialLayout } from '../services/layoutOptimizer.js';
import pool from '../db/index.js';

/**
 * POST /api/layout/optimize
 * Optimize module layout using AI
 */
export async function optimizeLayoutRoute(req, res) {
  try {
    const { config, lockedModuleIds = [] } = req.body;

    if (!config) {
      return res.status(400).json({ error: 'Configuration requise' });
    }

    // Fetch available modules from catalog
    const { rows: availableModules } = await pool.query(
      'SELECT * FROM modules WHERE active = 1 ORDER BY category, width_mm'
    );

    if (availableModules.length === 0) {
      return res.status(400).json({ error: 'Aucun module disponible dans le catalogue' });
    }

    const result = await optimizeLayout(config, availableModules, lockedModuleIds);
    res.json(result);

  } catch (error) {
    console.error('Layout optimization error:', error);
    res.status(500).json({ error: error.message || 'Erreur d\'optimisation' });
  }
}

/**
 * POST /api/layout/quick-optimize
 * Quick local optimization without AI
 */
export async function quickOptimizeRoute(req, res) {
  try {
    const { config, lockedModuleIds = [] } = req.body;

    if (!config) {
      return res.status(400).json({ error: 'Configuration requise' });
    }

    const result = quickOptimize(config, lockedModuleIds);
    res.json(result);

  } catch (error) {
    console.error('Quick optimization error:', error);
    res.status(500).json({ error: error.message || 'Erreur d\'optimisation' });
  }
}

/**
 * GET /api/layout/suggest?width=2400
 * Suggest initial layout for given width
 */
export async function suggestLayoutRoute(req, res) {
  try {
    const totalWidth = parseInt(req.query.width) || 2400;

    // Fetch available modules
    const { rows: availableModules } = await pool.query(
      'SELECT * FROM modules WHERE active = 1 ORDER BY category, width_mm'
    );

    if (availableModules.length === 0) {
      return res.status(400).json({ error: 'Aucun module disponible' });
    }

    const suggestions = suggestInitialLayout(totalWidth, availableModules);
    res.json({ success: true, modules: suggestions, totalWidth });

  } catch (error) {
    console.error('Layout suggestion error:', error);
    res.status(500).json({ error: error.message || 'Erreur de suggestion' });
  }
}