Update pollen detection after SVG change

custom_components/irm_kmi/pollen.py

@@ -11,8 +11,8 @@
 class PollenParser:
     """
     Extract pollen level from an SVG provided by the IRM KMI API.
-    To get the data, match pollen names and pollen levels that are vertically aligned.  Then, map the value to the
-    corresponding color on the scale.
+    To get the data, match pollen names and pollen levels that are vertically aligned or the dot on the color scale.
+    Then, map the value to the corresponding color on the scale.
     """
 
     def __init__(
@@ -70,9 +70,40 @@ def get_pollen_data(self) -> dict:
         pollen_levels = {e.attrib.get('x', None): POLLEN_LEVEL_TO_COLOR[self._get_elem_text(e)]
                          for e in elements if 'tspan' in e.tag and self._get_elem_text(e) in POLLEN_LEVEL_TO_COLOR}
 
+        level_dots = {e.attrib.get('cx', None) for e in elements if 'circle' in e.tag}
+        print(level_dots)
+
+        # For each pollen name found, check the text just below.
+        # As of January 2025, the text is always 'active' and the dot shows the real level
+        # If text says 'active', check the dot; else trust the text
         for position, pollen in pollens.items():
+            # Determine pollen level based on text
             if position is not None and position in pollen_levels:
                 pollen_data[pollen] = pollen_levels[position]
+                print(f"{pollen} is {pollen_data[pollen]} according to text")
+
+            # If text is 'active' or if there is no text, check the dot as a fallback
+            if pollen_data[pollen] not in {'none', 'active'}:
+                _LOGGER.debug(f"{pollen} trusting text")
+            else:
+                for dot in level_dots:
+                    try:
+                        relative_x_position = float(position) - float(dot)
+                    except TypeError:
+                        pass
+                    else:
+                        if 24 <= relative_x_position <= 34:
+                            pollen_data[pollen] = 'green'
+                        elif 13 <= relative_x_position <= 23:
+                            pollen_data[pollen] = 'yellow'
+                        elif -5 <= relative_x_position <= 5:
+                            pollen_data[pollen] = 'orange'
+                        elif -23 <= relative_x_position <= -13:
+                            pollen_data[pollen] = 'red'
+                        elif -34 <= relative_x_position <= -24:
+                            pollen_data[pollen] = 'purple'
+
+                _LOGGER.debug(f"{pollen} is {pollen_data[pollen]} according to dot")
 
         _LOGGER.debug(f"Pollen data: {pollen_data}")
         return pollen_data

tests/test_pollen.py

@@ -22,6 +22,12 @@ def test_svg_two_pollen_parsing():
     assert data == {'birch': 'none', 'oak': 'none', 'hazel': 'none', 'mugwort': 'active', 'alder': 'none',
                     'grasses': 'red', 'ash': 'none'}
 
+def test_svg_two_pollen_parsing_2025_update():
+    with open("tests/fixtures/pollens-2025.svg", "r") as file:
+        svg_data = file.read()
+    data = PollenParser(svg_data).get_pollen_data()
+    assert data == {'birch': 'none', 'oak': 'none', 'hazel': 'active', 'mugwort': 'none', 'alder': 'green',
+                    'grasses': 'none', 'ash': 'none'}
 
 def test_pollen_options():
     assert set(PollenParser.get_option_values()) == {'green', 'yellow', 'orange', 'red', 'purple', 'active', 'none'}