fix: auto-chunk breathing rate and HRV date ranges > 30 days

fitbit_cli/__init__.py

@@ -3,4 +3,4 @@
 fitbit_cli Module
 """
 
-__version__ = "1.8.0"
+__version__ = "1.9.0"

fitbit_cli/fitbit_api.py

@@ -3,6 +3,8 @@
 Fitbit API
 """
 
+from datetime import datetime, timedelta
+
 import requests
 
 from .exceptions import FitbitAPIError
@@ -134,29 +136,59 @@ def get_azm_intraday(self, start_date, end_date=None):
         response = self.make_request("GET", url)
         return response.json()
 
+    def _fetch_chunked_data(self, url_template, key, start_date, end_date=None):
+        """Helper to fetch and aggregate data for APIs with max date range limits."""
+        max_days = 30
+        if not end_date:
+            url = url_template.format(date_range=start_date)
+            return self.make_request("GET", url).json()
+
+        start = (
+            datetime.strptime(str(start_date), "%Y-%m-%d").date()
+            if isinstance(start_date, str)
+            else start_date
+        )
+        end = (
+            datetime.strptime(str(end_date), "%Y-%m-%d").date()
+            if isinstance(end_date, str)
+            else end_date
+        )
+
+        if (end - start).days < max_days:
+            url = url_template.format(date_range=f"{start_date}/{end_date}")
+            return self.make_request("GET", url).json()
+
+        combined_items = []
+        curr_start = start
+        while curr_start <= end:
+            curr_end = min(curr_start + timedelta(days=max_days - 1), end)
+            chunk_range = (
+                f"{curr_start.strftime('%Y-%m-%d')}/{curr_end.strftime('%Y-%m-%d')}"
+            )
+            url = url_template.format(date_range=chunk_range)
+            response = self.make_request("GET", url).json()
+            combined_items.extend(response.get(key, []))
+            curr_start = curr_end + timedelta(days=1)
+
+        return {key: combined_items}
+
     def get_breathing_rate_summary(self, start_date, end_date=None):
         """Get Breathing Rate Summary by Interval and Data"""
 
-        date_range = f"{start_date}/{end_date}" if end_date else start_date
-        url = f"https://api.fitbit.com/1/user/-/br/date/{date_range}.json"
-        response = self.make_request("GET", url)
-        return response.json()
+        url_template = "https://api.fitbit.com/1/user/-/br/date/{date_range}.json"
+        return self._fetch_chunked_data(url_template, "br", start_date, end_date)
 
     def get_breathing_rate_intraday(self, start_date, end_date=None):
         """Get Breathing Rate Intraday by Interval and Data"""
 
-        date_range = f"{start_date}/{end_date}" if end_date else start_date
-        url = f"https://api.fitbit.com/1/user/-/br/date/{date_range}/all.json"
-        response = self.make_request("GET", url)
-        return response.json()
+        url_template = "https://api.fitbit.com/1/user/-/br/date/{date_range}/all.json"
+        return self._fetch_chunked_data(url_template, "br", start_date, end_date)
 
     def get_hrv_summary(self, start_date, end_date=None):
         """Get HRV Summary by Interval and Date"""
 
-        date_range = f"{start_date}/{end_date}" if end_date else start_date
-        url = f"https://api.fitbit.com/1/user/-/hrv/date/{date_range}.json"
-        response = self.make_request("GET", url)
-        return response.json()
+        url_template = "https://api.fitbit.com/1/user/-/hrv/date/{date_range}.json"
+        return self._fetch_chunked_data(url_template, "hrv", start_date, end_date)
 
     def get_body_time_series(self, resource_path, start_date, end_date=None):
         """Get Body Time Series by Interval and Date"""

tests/date_range_test.py

@@ -0,0 +1,106 @@
+# -*- coding: utf-8 -*-
+"""
+Date Range Chunking Tests for Breathing Rate and HRV APIs
+"""
+
+import os
+import sys
+import unittest
+from datetime import date
+from unittest.mock import MagicMock
+
+# Add the parent directory to sys.path to make imports work
+sys.path.insert(0, os.path.abspath(os.path.dirname(os.path.dirname(__file__))))
+
+# pylint: disable=C0413
+from fitbit_cli.fitbit_api import FitbitAPI
+
+
+class TestDateRangeChunking(unittest.TestCase):
+    """Test suite for auto-chunking date ranges > 30 days for Breathing Rate and HRV."""
+
+    def setUp(self):
+        self.fitbit = FitbitAPI("client", "secret", "access", "refresh")
+
+    def test_breathing_rate_single_date(self):
+        """Test breathing rate summary with a single date."""
+        mock_resp = MagicMock()
+        mock_resp.json.return_value = {
+            "br": [{"dateTime": "2026-01-01", "value": {"breathingRate": 14.0}}]
+        }
+        self.fitbit.make_request = MagicMock(return_value=mock_resp)
+
+        res = self.fitbit.get_breathing_rate_summary("2026-01-01")
+
+        self.fitbit.make_request.assert_called_once_with(
+            "GET", "https://api.fitbit.com/1/user/-/br/date/2026-01-01.json"
+        )
+        self.assertEqual(len(res["br"]), 1)
+
+    def test_breathing_rate_short_range(self):
+        """Test breathing rate summary with a range <= 30 days."""
+        mock_resp = MagicMock()
+        mock_resp.json.return_value = {
+            "br": [{"dateTime": "2026-01-01"}, {"dateTime": "2026-01-15"}]
+        }
+        self.fitbit.make_request = MagicMock(return_value=mock_resp)
+
+        res = self.fitbit.get_breathing_rate_summary("2026-01-01", "2026-01-15")
+
+        self.fitbit.make_request.assert_called_once_with(
+            "GET", "https://api.fitbit.com/1/user/-/br/date/2026-01-01/2026-01-15.json"
+        )
+        self.assertEqual(len(res["br"]), 2)
+
+    def test_breathing_rate_long_range_chunks_and_aggregates(self):
+        """Test breathing rate summary with a range > 30 days automatically chunks and merges data."""
+        mock_resp1 = MagicMock()
+        mock_resp1.json.return_value = {
+            "br": [{"dateTime": "2026-01-01"}, {"dateTime": "2026-01-30"}]
+        }
+
+        mock_resp2 = MagicMock()
+        mock_resp2.json.return_value = {
+            "br": [{"dateTime": "2026-01-31"}, {"dateTime": "2026-03-01"}]
+        }
+
+        self.fitbit.make_request = MagicMock(side_effect=[mock_resp1, mock_resp2])
+
+        # Range is 59 days: 2026-01-01 to 2026-03-01
+        res = self.fitbit.get_breathing_rate_summary("2026-01-01", "2026-03-01")
+
+        expected_calls = [
+            (
+                (
+                    "GET",
+                    "https://api.fitbit.com/1/user/-/br/date/2026-01-01/2026-01-30.json",
+                ),
+            ),
+            (
+                (
+                    "GET",
+                    "https://api.fitbit.com/1/user/-/br/date/2026-01-31/2026-03-01.json",
+                ),
+            ),
+        ]
+        self.assertEqual(self.fitbit.make_request.call_args_list, expected_calls)
+        self.assertEqual(len(res["br"]), 4)
+
+    def test_hrv_long_range_chunks_and_aggregates(self):
+        """Test HRV summary with a range > 30 days automatically chunks and merges data."""
+        mock_resp1 = MagicMock()
+        mock_resp1.json.return_value = {"hrv": [{"dateTime": "2026-01-01"}]}
+
+        mock_resp2 = MagicMock()
+        mock_resp2.json.return_value = {"hrv": [{"dateTime": "2026-01-31"}]}
+
+        self.fitbit.make_request = MagicMock(side_effect=[mock_resp1, mock_resp2])
+
+        res = self.fitbit.get_hrv_summary(date(2026, 1, 1), date(2026, 3, 1))
+
+        self.assertEqual(self.fitbit.make_request.call_count, 2)
+        self.assertEqual(len(res["hrv"]), 2)
+
+
+if __name__ == "__main__":
+    unittest.main()