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105 lines
2.8 KiB
Python
105 lines
2.8 KiB
Python
import re
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from datetime import datetime, timezone
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from typing import Optional
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import arrow
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from freqtrade.constants import DATETIME_PRINT_FORMAT
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def dt_now() -> datetime:
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"""Return the current datetime in UTC."""
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return datetime.now(timezone.utc)
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def dt_utc(year: int, month: int, day: int, hour: int = 0, minute: int = 0, second: int = 0,
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microsecond: int = 0) -> datetime:
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"""Return a datetime in UTC."""
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return datetime(year, month, day, hour, minute, second, microsecond, tzinfo=timezone.utc)
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def dt_ts(dt: Optional[datetime] = None) -> int:
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"""
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Return dt in ms as a timestamp in UTC.
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If dt is None, return the current datetime in UTC.
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"""
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if dt:
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return int(dt.timestamp() * 1000)
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return int(dt_now().timestamp() * 1000)
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def dt_ts_def(dt: Optional[datetime], default: int = 0) -> int:
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"""
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Return dt in ms as a timestamp in UTC.
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If dt is None, return the given default.
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"""
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if dt:
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return int(dt.timestamp() * 1000)
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return default
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def dt_ts_none(dt: Optional[datetime]) -> Optional[int]:
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"""
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Return dt in ms as a timestamp in UTC.
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If dt is None, return the given default.
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"""
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if dt:
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return int(dt.timestamp() * 1000)
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return None
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def dt_floor_day(dt: datetime) -> datetime:
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"""Return the floor of the day for the given datetime."""
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return dt.replace(hour=0, minute=0, second=0, microsecond=0)
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def dt_from_ts(timestamp: float) -> datetime:
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"""
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Return a datetime from a timestamp.
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:param timestamp: timestamp in seconds or milliseconds
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"""
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if timestamp > 1e10:
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# Timezone in ms - convert to seconds
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timestamp /= 1000
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return datetime.fromtimestamp(timestamp, tz=timezone.utc)
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def shorten_date(_date: str) -> str:
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"""
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Trim the date so it fits on small screens
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"""
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new_date = re.sub('seconds?', 'sec', _date)
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new_date = re.sub('minutes?', 'min', new_date)
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new_date = re.sub('hours?', 'h', new_date)
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new_date = re.sub('days?', 'd', new_date)
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new_date = re.sub('^an?', '1', new_date)
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return new_date
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def dt_humanize(dt: datetime, **kwargs) -> str:
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"""
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Return a humanized string for the given datetime.
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:param dt: datetime to humanize
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:param kwargs: kwargs to pass to arrow's humanize()
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"""
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return arrow.get(dt).humanize(**kwargs)
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def format_date(date: Optional[datetime]) -> str:
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"""
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Return a formatted date string.
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Returns an empty string if date is None.
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:param date: datetime to format
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"""
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if date:
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return date.strftime(DATETIME_PRINT_FORMAT)
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return ''
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def format_ms_time(date: int) -> str:
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"""
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convert MS date to readable format.
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: epoch-string in ms
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"""
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return datetime.fromtimestamp(date / 1000.0).strftime('%Y-%m-%dT%H:%M:%S')
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