mirror of https://github.com/snachodog/mybuddy.git
72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
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# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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from django.utils import timezone
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import plotly.offline as plotly
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import plotly.graph_objs as go
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from core.utils import duration_parts
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from reports import utils
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def sleep_totals(instances):
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"""
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Create a graph showing total time sleeping for each day.
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:param instances: a QuerySet of Sleep instances.
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:returns: a tuple of the the graph's html and javascript.
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"""
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totals = {}
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for instance in instances:
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start = timezone.localtime(instance.start)
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end = timezone.localtime(instance.end)
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if start.date() not in totals.keys():
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totals[start.date()] = timezone.timedelta(seconds=0)
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if end.date() not in totals.keys():
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totals[end.date()] = timezone.timedelta(seconds=0)
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# Account for dates crossing midnight.
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if start.date() != end.date():
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totals[start.date()] += end.replace(
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year=start.year, month=start.month, day=start.day,
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hour=23, minute=59, second=59) - start
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totals[end.date()] += end - start.replace(
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year=end.year, month=end.month, day=end.day, hour=0, minute=0,
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second=0)
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else:
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totals[start.date()] += instance.duration
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trace = go.Bar(
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name='Total sleep',
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x=list(totals.keys()),
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y=[td.seconds/3600 for td in totals.values()],
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hoverinfo='text',
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textposition='outside',
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text=[_duration_string_short(td) for td in totals.values()]
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)
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layout_args = utils.default_graph_layout_options()
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layout_args['barmode'] = 'stack'
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layout_args['title'] = '<b>Sleep Totals</b>'
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layout_args['xaxis']['title'] = 'Date'
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layout_args['xaxis']['rangeselector'] = utils.rangeselector_date()
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layout_args['yaxis']['title'] = 'Hours of sleep'
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fig = go.Figure({
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'data': [trace],
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'layout': go.Layout(**layout_args)
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})
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output = plotly.plot(fig, output_type='div', include_plotlyjs=False)
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return utils.split_graph_output(output)
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def _duration_string_short(duration):
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"""
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Format a "short" duration string without seconds precision. This is
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intended to fit better in smaller spaces on a graph.
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:returns: a string of the form XhXm.
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"""
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h, m, s = duration_parts(duration)
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return '{}h{}m'.format(h, m)
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