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https://github.com/jdejaegh/irm-kmi-ha.git
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102 lines
3 KiB
Python
102 lines
3 KiB
Python
import logging
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import xml.etree.ElementTree as ET
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from typing import List
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from custom_components.irm_kmi.const import POLLEN_NAMES
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_LOGGER = logging.getLogger(__name__)
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class PollenParser:
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def __init__(
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self,
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xml_string: str
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):
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self._xml = xml_string
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@staticmethod
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def _validate_svg(elements: List[ET.Element]) -> bool:
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x_values = {"rectgreen": 80,
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"rectyellow": 95,
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"rectorange": 110,
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"rectred": 125,
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"rectpurple": 140}
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for e in elements:
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if e.attrib.get('id', '') in x_values.keys():
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try:
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if float(e.attrib.get('x', '0')) != x_values.get(e.attrib.get('id')):
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return False
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except ValueError:
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return False
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return True
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@staticmethod
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def extract_elements(root) -> List[ET.Element]:
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elements = []
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for child in root:
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elements.append(child)
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elements.extend(PollenParser.extract_elements(child))
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return elements
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@staticmethod
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def dot_to_color_value(dot: ET.Element) -> str | None:
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try:
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cx = float(dot.attrib.get('cx'))
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except ValueError:
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return None
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if cx > 155:
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return None
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elif cx > 140:
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return 'purple'
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elif cx > 125:
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return 'red'
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elif cx > 110:
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return 'orange'
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elif cx > 95:
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return 'yellow'
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elif cx > 80:
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return 'green'
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else:
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return None
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def get_pollen_data(self):
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try:
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root = ET.fromstring("self._xml")
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except ET.ParseError:
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# TODO Handle with default case
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return None
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elements: List[ET.Element] = self.extract_elements(root)
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if not self._validate_svg(elements):
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# TODO return default value
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return None
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pollens = [e for e in elements if 'tspan' in e.tag and e.text in POLLEN_NAMES]
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active = [e for e in elements if 'tspan' in e.tag and e.text == 'active']
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dots = [e for e in elements if 'ellipse' in e.tag
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and 'fill:#ffffff' in e.attrib.get('style', '')
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and 3 == float(e.attrib.get('rx', '0'))]
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pollen_data = {k: None for k in POLLEN_NAMES}
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for pollen in pollens:
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try:
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y = float(pollen.attrib.get('y'))
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if y in [float(e.attrib.get('y')) for e in active]:
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pollen_data[pollen.text] = 'active'
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else:
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dot = [d for d in dots if y - 3 <= float(d.attrib.get('cy', '0')) <= y + 3]
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if len(dot) == 1:
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dot = dot[0]
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pollen_data[pollen.text] = self.dot_to_color_value(dot)
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except ValueError | NameError:
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pass
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print(pollen_data)
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for e in pollens + active:
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print(e.text)
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for d in dots:
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print(d.attrib)
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