115 lines
5.0 KiB
Python
115 lines
5.0 KiB
Python
import json
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import pandas as pd
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from datetime import datetime
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HR_SUMMARY_COLUMNS = ("device_id",
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"local_date",
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"heartrate_daily_restinghr",
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"heartrate_daily_caloriesoutofrange",
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"heartrate_daily_caloriesfatburn",
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"heartrate_daily_caloriescardio",
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"heartrate_daily_caloriespeak")
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HR_INTRADAY_COLUMNS = ("device_id",
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"heartrate", "heartrate_zone",
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"local_date_time", "local_date", "local_month", "local_day",
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"local_day_of_week", "local_time", "local_hour", "local_minute",
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"local_day_segment")
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def parseHeartrateZones(heartrate_data):
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# Get the range of heartrate zones: outofrange, fatburn, cardio, peak
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# refer to: https://help.fitbit.com/articles/en_US/Help_article/1565
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heartrate_fitbit_data = json.loads(heartrate_data["fitbit_data"].iloc[0])["activities-heart"][0]
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# API Version X: not sure the exact version
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if "heartRateZones" in heartrate_fitbit_data:
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heartrate_zones = heartrate_fitbit_data["heartRateZones"]
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# API VERSION Y: not sure the exact version
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elif "value" in heartrate_fitbit_data:
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heartrate_zones = heartrate_fitbit_data["value"]["heartRateZones"]
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else:
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raise ValueError("Heartrate zone are stored in an unkown format, this could mean Fitbit's heartrate API changed")
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heartrate_zones_range = {}
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for hrzone in heartrate_zones:
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heartrate_zones_range[hrzone["name"].lower().replace(" ", "")] = [hrzone["min"], hrzone["max"]]
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return heartrate_zones_range
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def parseHeartrateSummaryData(record_summary, device_id, curr_date):
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# API Version X: not sure the exact version
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if "heartRateZones" in record_summary:
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heartrate_zones = record_summary["heartRateZones"]
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d_resting_heartrate = record_summary["value"] if "value" in record_summary else None
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# API VERSION Y: not sure the exact version
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elif "value" in record_summary:
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heartrate_zones = record_summary["value"]["heartRateZones"]
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d_resting_heartrate = record_summary["value"]["restingHeartRate"] if "restingHeartRate" in record_summary["value"] else None
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else:
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ValueError("Heartrate zone are stored in an unkown format, this could mean Fitbit's heartrate API changed")
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if "caloriesOut" in heartrate_zones[0]:
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d_calories_outofrange = heartrate_zones[0]["caloriesOut"]
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d_calories_fatburn = heartrate_zones[1]["caloriesOut"]
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d_calories_cardio = heartrate_zones[2]["caloriesOut"]
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d_calories_peak = heartrate_zones[3]["caloriesOut"]
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else:
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d_calories_outofrange, d_calories_fatburn, d_calories_cardio, d_calories_peak = None, None, None, None
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row_summary = (device_id,
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curr_date,
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d_resting_heartrate,
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d_calories_outofrange,
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d_calories_fatburn,
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d_calories_cardio,
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d_calories_peak)
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return row_summary
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def parseHeartrateIntradayData(records_intraday, dataset, device_id, curr_date, heartrate_zones_range, HOUR2EPOCH):
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for data in dataset:
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d_time = datetime.strptime(data["time"], '%H:%M:%S').time()
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d_datetime = datetime.combine(curr_date, d_time)
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d_hr = data["value"]
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# Get heartrate zone by range: min <= heartrate < max
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d_hrzone = None
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for hrzone, hrrange in heartrate_zones_range.items():
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if d_hr >= hrrange[0] and d_hr < hrrange[1]:
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d_hrzone = hrzone
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break
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row_intraday = (device_id,
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d_hr, d_hrzone,
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d_datetime, d_datetime.date(), d_datetime.month, d_datetime.day,
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d_datetime.weekday(), d_datetime.time(), d_datetime.hour, d_datetime.minute,
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HOUR2EPOCH[d_datetime.hour])
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records_intraday.append(row_intraday)
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return records_intraday
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def parseHeartrateData(heartrate_data, HOUR2EPOCH):
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if heartrate_data.empty:
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return pd.DataFrame(columns=HR_COLUMNS)
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device_id = heartrate_data["device_id"].iloc[0]
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records_summary, records_intraday = [], []
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heartrate_zones_range = parseHeartrateZones(heartrate_data)
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# Parse JSON into individual records
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for record in heartrate_data.fitbit_data:
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record = json.loads(record) # Parse text into JSON
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curr_date = datetime.strptime(record["activities-heart"][0]["dateTime"], "%Y-%m-%d")
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record_summary = record["activities-heart"][0]
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row_summary = parseHeartrateSummaryData(record_summary, device_id, curr_date)
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records_summary.append(row_summary)
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dataset = record["activities-heart-intraday"]["dataset"]
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records_intraday = parseHeartrateIntradayData(records_intraday, dataset, device_id, curr_date, heartrate_zones_range, HOUR2EPOCH)
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return pd.DataFrame(data=records_summary, columns=HR_SUMMARY_COLUMNS), pd.DataFrame(data=records_intraday, columns=HR_INTRADAY_COLUMNS)
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