init

downloader.py

@@ -0,0 +1,46 @@
+import os
+from datetime import datetime, timedelta
+from copernicusmarine import subset
+import subprocess
+
+class CopernicusDownloader:
+    def __init__(self, username="", password=""):
+        self.dataset_id = "cmems_mod_ibi_phy_anfc_0.027deg-2D_PT1H-m"
+        self.username = username
+        self.password = password
+        self.output_file = os.path.join(os.getcwd(), "downloads", "download.nc")
+ 
+    def download(self, lat_min, lat_max, lon_min, lon_max, days):
+        today = datetime.utcnow()
+        start_date = today.strftime("%Y-%m-%dT00:00:00")
+        end_date = (today + timedelta(days=days)).strftime("%Y-%m-%dT23:00:00")
+
+        save_dir = os.path.join(os.getcwd(), "downloads")
+        os.makedirs(save_dir, exist_ok=True)
+
+        subset(
+            dataset_id=self.dataset_id,
+            output_filename=self.output_file,
+            variables=["zos", "uo", "vo", "thetao"],
+            minimum_longitude=lon_min,
+            maximum_longitude=lon_max,
+            minimum_latitude=lat_min,
+            maximum_latitude=lat_max,
+            start_datetime=start_date,
+            end_datetime=end_date,
+            username=self.username,
+            password=self.password
+        )
+
+    def convert_to_grib2(self, input_path=None, output_path=None):
+        input_path = input_path or self.output_file
+        output_path = output_path or input_path.replace(".nc", ".grib2")
+
+        if not os.path.exists(input_path):
+            raise FileNotFoundError(f"Fichier introuvable : {input_path}")
+
+        try:
+            subprocess.run(["cdo", "-f", "grb2", "copy", input_path, output_path], check=True)
+            return output_path
+        except subprocess.CalledProcessError as e:
+            raise RuntimeError(f"Erreur lors de la conversion avec CDO : {e}")