Update app.py

app.py

@@ -130,7 +130,51 @@ class TyphoonAnalyzer:
         today = datetime.now()
         return (today.day == 1 or today.day == 15 or 
                 today.day == (today.replace(day=1, month=today.month%12+1) - timedelta(days=1)).day)
-
+    def convert_typhoondata(self, input_file, output_file):
+       """Convert IBTrACS data to processed format"""
+       print(f"Converting typhoon data from {input_file} to {output_file}")
+       with open(input_file, 'r') as infile:
+           # Skip the header lines
+           next(infile)
+           next(infile)
+           
+           reader = csv.reader(infile)
+           sid_data = defaultdict(list)
+           
+           for row in reader:
+               if not row:  # Skip blank lines
+                   continue
+               
+               sid = row[0]
+               iso_time = row[6]
+               sid_data[sid].append((row, iso_time))
+
+       with open(output_file, 'w', newline='') as outfile:
+           fieldnames = ['SID', 'ISO_TIME', 'LAT', 'LON', 'SEASON', 'NAME', 
+                        'WMO_WIND', 'WMO_PRES', 'USA_WIND', 'USA_PRES', 
+                        'START_DATE', 'END_DATE']
+           writer = csv.DictWriter(outfile, fieldnames=fieldnames)
+           writer.writeheader()
+           
+           for sid, data in sid_data.items():
+               start_date = min(data, key=lambda x: x[1])[1]
+               end_date = max(data, key=lambda x: x[1])[1]
+               
+               for row, iso_time in data:
+                   writer.writerow({
+                       'SID': row[0],
+                       'ISO_TIME': iso_time,
+                       'LAT': row[8],
+                       'LON': row[9],
+                       'SEASON': row[1],
+                       'NAME': row[5],
+                       'WMO_WIND': row[10].strip() or ' ',
+                       'WMO_PRES': row[11].strip() or ' ',
+                       'USA_WIND': row[23].strip() or ' ',
+                       'USA_PRES': row[24].strip() or ' ',
+                       'START_DATE': start_date,
+                       'END_DATE': end_date
+                   })
     def update_oni_data(self):
         if not self.should_update_oni():
             return