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70 lines
1.9 KiB
70 lines
1.9 KiB
"""
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Rendering weather data in the Prometheus format.
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"""
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from datetime import datetime
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from fields import DESCRIPTION
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def _render_current(data, for_day="current", already_seen=[]):
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"Converts data into prometheus style format"
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output = []
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for field_name, val in DESCRIPTION.items():
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help, name = val
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try:
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value = data[field_name]
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if field_name == "weatherDesc":
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value = value[0]["value"]
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except (IndexError, KeyError):
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try:
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value = data["astronomy"][0][field_name]
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if value.endswith(" AM") or value.endswith(" PM"):
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value = _convert_time_to_minutes(value)
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except (IndexError, KeyError, ValueError):
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continue
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try:
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if name == "observation_time":
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value = _convert_time_to_minutes(value)
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except ValueError:
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continue
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description = ""
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try:
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float(value)
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except ValueError:
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description = f", description=\"{value}\""
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value = "1"
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if name not in already_seen:
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output.append(f"# HELP {name} {help}")
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already_seen.append(name)
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output.append(f"{name}{{forecast=\"{for_day}\"{description}}} {value}")
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return "\n".join(output)+"\n"
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def _convert_time_to_minutes(time_str):
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"Convert time from midnight to minutes"
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return int((datetime.strptime(time_str, "%I:%M %p")
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- datetime.strptime("12:00 AM", "%I:%M %p")).total_seconds())//60
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def render_prometheus(data):
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"""
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Convert `data` into Prometheus format
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and return it as string.
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"""
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already_seen = []
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answer = _render_current(
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data["current_condition"][0], already_seen=already_seen)
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for i in range(3):
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answer += _render_current(
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data["weather"][i], for_day="%sd" % i, already_seen=already_seen)
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return answer
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