Initial import from Docker volume

modules/purchase_trade/cron.py

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+import requests
+from decimal import getcontext, Decimal, ROUND_HALF_UP
+from datetime import datetime
+from trytond.model import fields
+from trytond.model import (ModelSQL, ModelView)
+from trytond.pool import Pool, PoolMeta
+import logging
+logger = logging.getLogger(__name__)
+
+class Cron(metaclass=PoolMeta):
+    __name__ = 'ir.cron'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.method.selection.append(
+            ('forex.cron|update_forex', "Update Forex Prices"))
+
+class PriceCron(ModelSQL, ModelView):
+    "Price Cron"
+    __name__ = 'forex.cron'
+
+    frequency = fields.Selection([
+            ('daily', "Daily"),
+            ('weekly', "Weekly"),
+            ('monthly', "Monthly"),
+            ], "Frequency", required=True,
+        help="How frequently rates must be updated.")
+    
+    last_update = fields.Date("Last Update", required=True)
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls._buttons.update({
+                'run': {},
+                })
+
+    @classmethod
+    def default_frequency(cls):
+        return 'daily'
+
+    @classmethod
+    def default_last_update(cls):
+        pool = Pool()
+        Date = pool.get('ir.date')
+        return Date.today()
+
+    @classmethod
+    @ModelView.button
+    def run(cls, crons):
+        cls.update_forex(crons)
+
+    @classmethod
+    def update_forex(cls):
+        Currency = Pool().get('currency.currency')
+        Rate = Pool().get('currency.currency.rate')
+
+        # On suppose que l'EUR existe déjà dans la base
+        eur, = Currency.search([('name', '=', 'EUR')])
+
+        # Appel API Frankfurter
+        url = "https://api.frankfurter.app/latest"
+        params = {"base": "EUR", "symbols": "USD"}
+        resp = requests.get(url, params=params)
+        resp.raise_for_status()
+        data = resp.json()
+        rate_value = round(Decimal(data["rates"]["USD"]),4)
+        rate_date = datetime.strptime(data["date"], "%Y-%m-%d").date()
+        logger.info(f"Taux EUR/USD : {rate_value} ({rate_date})")
+        # Vérifie si un taux existe déjà pour ce jour
+        existing = Rate.search([
+            ('currency', '=', eur.id),
+            ('date', '=', rate_date),
+        ])
+
+        if not existing and rate_value:
+            rate = Rate(currency=eur, rate=round(1/rate_value,6), date=rate_date)
+            rate.save()
+            logger.info(f"Taux EUR/USD ajouté : {rate_value} ({rate_date})")
+        else:
+            logger.info(f"Taux déjà existant pour {rate_date}")