initial commit

backend/routes/picker.js

@@ -0,0 +1,100 @@
+const express = require('express');
+const db = require('../database');
+
+const router = express.Router();
+
+// Pick a random game with filters and repeat avoidance
+router.post('/pick', (req, res) => {
+  try {
+    const {
+      playerCount,
+      drawing,
+      length,
+      familyFriendly,
+      sessionId
+    } = req.body;
+
+    // Build query for eligible games
+    let query = 'SELECT * FROM games WHERE enabled = 1';
+    const params = [];
+
+    if (playerCount) {
+      const count = parseInt(playerCount);
+      query += ' AND min_players <= ? AND max_players >= ?';
+      params.push(count, count);
+    }
+
+    if (drawing === 'only') {
+      query += ' AND game_type = ?';
+      params.push('Drawing');
+    } else if (drawing === 'exclude') {
+      query += ' AND (game_type != ? OR game_type IS NULL)';
+      params.push('Drawing');
+    }
+
+    if (length) {
+      if (length === 'short') {
+        query += ' AND (length_minutes <= 15 OR length_minutes IS NULL)';
+      } else if (length === 'medium') {
+        query += ' AND length_minutes > 15 AND length_minutes <= 25';
+      } else if (length === 'long') {
+        query += ' AND length_minutes > 25';
+      }
+    }
+
+    if (familyFriendly !== undefined) {
+      query += ' AND family_friendly = ?';
+      params.push(familyFriendly ? 1 : 0);
+    }
+
+    // Get eligible games
+    const stmt = db.prepare(query);
+    let eligibleGames = stmt.all(...params);
+
+    if (eligibleGames.length === 0) {
+      return res.status(404).json({ 
+        error: 'No games match the current filters',
+        suggestion: 'Try adjusting your filters or enabling more games'
+      });
+    }
+
+    // Apply repeat avoidance if session provided
+    if (sessionId) {
+      const lastGames = db.prepare(`
+        SELECT game_id FROM session_games
+        WHERE session_id = ?
+        ORDER BY played_at DESC
+        LIMIT 2
+      `).all(sessionId);
+
+      const excludeIds = lastGames.map(g => g.game_id);
+      
+      if (excludeIds.length > 0) {
+        eligibleGames = eligibleGames.filter(game => !excludeIds.includes(game.id));
+      }
+
+      if (eligibleGames.length === 0) {
+        return res.status(404).json({
+          error: 'All eligible games have been played recently',
+          suggestion: 'Enable more games or adjust your filters',
+          recentlyPlayed: excludeIds
+        });
+      }
+    }
+
+    // Pick random game from eligible pool
+    const randomIndex = Math.floor(Math.random() * eligibleGames.length);
+    const selectedGame = eligibleGames[randomIndex];
+
+    res.json({
+      game: selectedGame,
+      poolSize: eligibleGames.length,
+      totalEnabled: eligibleGames.length + (sessionId ? 2 : 0) // Approximate
+    });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+module.exports = router;
+