Add breeding/heat cycle API routes

server/routes/breeding.js

@@ -0,0 +1,133 @@
+const express = require('express');
+const router = express.Router();
+const { getDatabase } = require('../db/init');
+
+// GET all heat cycles for a dog
+router.get('/heat-cycles/dog/:dogId', (req, res) => {
+  try {
+    const db = getDatabase();
+    const cycles = db.prepare(`
+      SELECT * FROM heat_cycles 
+      WHERE dog_id = ? 
+      ORDER BY start_date DESC
+    `).all(req.params.dogId);
+    
+    res.json(cycles);
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+// GET all active heat cycles
+router.get('/heat-cycles/active', (req, res) => {
+  try {
+    const db = getDatabase();
+    const cycles = db.prepare(`
+      SELECT hc.*, d.name as dog_name, d.registration_number
+      FROM heat_cycles hc
+      JOIN dogs d ON hc.dog_id = d.id
+      WHERE hc.end_date IS NULL OR hc.end_date >= date('now', '-30 days')
+      ORDER BY hc.start_date DESC
+    `).all();
+    
+    res.json(cycles);
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+// POST create heat cycle
+router.post('/heat-cycles', (req, res) => {
+  try {
+    const { dog_id, start_date, end_date, progesterone_peak_date, breeding_date, breeding_successful, notes } = req.body;
+    
+    if (!dog_id || !start_date) {
+      return res.status(400).json({ error: 'Dog ID and start date are required' });
+    }
+    
+    const db = getDatabase();
+    
+    // Verify dog is female
+    const dog = db.prepare('SELECT sex FROM dogs WHERE id = ?').get(dog_id);
+    if (!dog || dog.sex !== 'female') {
+      return res.status(400).json({ error: 'Dog must be female' });
+    }
+    
+    const result = db.prepare(`
+      INSERT INTO heat_cycles (dog_id, start_date, end_date, progesterone_peak_date, breeding_date, breeding_successful, notes)
+      VALUES (?, ?, ?, ?, ?, ?, ?)
+    `).run(dog_id, start_date, end_date, progesterone_peak_date, breeding_date, breeding_successful || 0, notes);
+    
+    const cycle = db.prepare('SELECT * FROM heat_cycles WHERE id = ?').get(result.lastInsertRowid);
+    
+    res.status(201).json(cycle);
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+// PUT update heat cycle
+router.put('/heat-cycles/:id', (req, res) => {
+  try {
+    const { start_date, end_date, progesterone_peak_date, breeding_date, breeding_successful, notes } = req.body;
+    
+    const db = getDatabase();
+    db.prepare(`
+      UPDATE heat_cycles 
+      SET start_date = ?, end_date = ?, progesterone_peak_date = ?, 
+          breeding_date = ?, breeding_successful = ?, notes = ?
+      WHERE id = ?
+    `).run(start_date, end_date, progesterone_peak_date, breeding_date, breeding_successful, notes, req.params.id);
+    
+    const cycle = db.prepare('SELECT * FROM heat_cycles WHERE id = ?').get(req.params.id);
+    res.json(cycle);
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+// DELETE heat cycle
+router.delete('/heat-cycles/:id', (req, res) => {
+  try {
+    const db = getDatabase();
+    db.prepare('DELETE FROM heat_cycles WHERE id = ?').run(req.params.id);
+    res.json({ message: 'Heat cycle deleted successfully' });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+// GET calculate expected whelping date
+router.get('/whelping-calculator', (req, res) => {
+  try {
+    const { breeding_date } = req.query;
+    
+    if (!breeding_date) {
+      return res.status(400).json({ error: 'Breeding date is required' });
+    }
+    
+    const breedDate = new Date(breeding_date);
+    
+    // Average gestation: 63 days, range 58-68 days
+    const expectedDate = new Date(breedDate);
+    expectedDate.setDate(expectedDate.getDate() + 63);
+    
+    const earliestDate = new Date(breedDate);
+    earliestDate.setDate(earliestDate.getDate() + 58);
+    
+    const latestDate = new Date(breedDate);
+    latestDate.setDate(latestDate.getDate() + 68);
+    
+    res.json({
+      breeding_date: breeding_date,
+      expected_whelping_date: expectedDate.toISOString().split('T')[0],
+      earliest_date: earliestDate.toISOString().split('T')[0],
+      latest_date: latestDate.toISOString().split('T')[0],
+      gestation_days: 63
+    });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+module.exports = router;