mirror of https://github.com/snachodog/mybuddy.git
178 lines
6.1 KiB
Python
178 lines
6.1 KiB
Python
# -*- coding: utf-8 -*-
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from collections import OrderedDict
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from django.utils import timezone
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from django.utils.translation import gettext as _
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import pandas as pd
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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_string
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from reports import utils
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def sleep_pattern(instances):
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"""
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Create a graph showing blocked out periods of sleep during 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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# TODO: Simplify this using the bar charts "base" property.
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y_df = pd.DataFrame()
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text_df = pd.DataFrame()
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last_end_time = None
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adjustment = None
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df_index = 0
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for instance in instances:
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start_time = timezone.localtime(instance.start)
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end_time = timezone.localtime(instance.end)
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start_date = start_time.date().isoformat()
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duration = instance.duration
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# Check if the previous entry crossed midnight (see below).
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if adjustment:
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# Fake (0) entry to keep the color switching logic working.
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df_index = _add_sleep_entry(
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y_df, text_df, 0, adjustment['column'], 0)
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# Real adjustment entry.
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df_index = _add_sleep_entry(
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y_df,
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text_df,
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df_index,
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adjustment['column'],
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adjustment['duration'].seconds/60,
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'Asleep {} ({} to {})'.format(
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duration_string(adjustment['duration']),
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adjustment['start_time'].strftime('%I:%M %p'),
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adjustment['end_time'].strftime('%I:%M %p')
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)
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)
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last_end_time = timezone.localtime(adjustment['end_time'])
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adjustment = None
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# If the dates do not match, set up an adjustment for the next day.
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if end_time.date() != start_time.date():
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adj_start_time = end_time.replace(hour=0, minute=0, second=0)
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adjustment = {
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'column': end_time.date().isoformat(),
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'start_time': adj_start_time,
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'end_time': end_time,
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'duration': end_time - adj_start_time
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}
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# Adjust end_time for the current entry.
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end_time = end_time.replace(
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year=start_time.year, month=start_time.month,
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day=start_time.day, hour=23, minute=59, second=0)
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duration = end_time - start_time
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if start_date not in y_df:
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last_end_time = start_time.replace(hour=0, minute=0, second=0)
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# Awake time.
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df_index = _add_sleep_entry(
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y_df,
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text_df,
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df_index,
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start_date,
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(start_time - last_end_time).seconds/60
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)
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# Asleep time.
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df_index = _add_sleep_entry(
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y_df,
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text_df,
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df_index,
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start_date,
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duration.seconds/60,
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'Asleep {} ({} to {})'.format(
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duration_string(duration),
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start_time.strftime('%I:%M %p'),
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end_time.strftime('%I:%M %p')
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)
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)
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# Update the previous entry duration if an offset change occurred.
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# This can happen when an entry crosses a daylight savings time change.
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if start_time.utcoffset() != end_time.utcoffset():
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diff = start_time.utcoffset() - end_time.utcoffset()
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duration -= timezone.timedelta(seconds=diff.seconds)
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y_df.at[df_index - 1, start_date] = duration.seconds/60
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last_end_time = end_time
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dates = list(y_df)
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traces = []
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color = 'rgba(255, 255, 255, 0)'
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for index, row in y_df.iterrows():
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traces.append(go.Bar(
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x=dates,
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y=row,
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text=text_df.iloc[index],
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hoverinfo='text',
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marker={'color': color},
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marker_line_width=0,
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showlegend=False,
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))
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if color == 'rgba(255, 255, 255, 0)':
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color = 'rgb(35, 110, 150)'
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else:
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color = 'rgba(255, 255, 255, 0)'
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layout_args = utils.default_graph_layout_options()
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layout_args['margin']['b'] = 100
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layout_args['barmode'] = 'stack'
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layout_args['bargap'] = 0
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layout_args['hovermode'] = 'closest'
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layout_args['title'] = _('<b>Sleep Pattern</b>')
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layout_args['height'] = 800
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layout_args['xaxis']['title'] = _('Date')
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layout_args['xaxis']['tickangle'] = -65
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layout_args['xaxis']['rangeselector'] = utils.rangeselector_date()
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start = timezone.localtime().strptime('12:00 AM', '%I:%M %p')
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ticks = OrderedDict()
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ticks[0] = start.strftime('%I:%M %p')
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for i in range(30, 60*24, 30):
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ticks[i] = (start + timezone.timedelta(minutes=i)).strftime('%I:%M %p')
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layout_args['yaxis']['title'] = _('Time of day')
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layout_args['yaxis']['range'] = [0, 24*60]
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layout_args['yaxis']['tickmode'] = 'array'
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layout_args['yaxis']['tickvals'] = list(ticks.keys())
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layout_args['yaxis']['ticktext'] = list(ticks.values())
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layout_args['yaxis']['tickfont'] = {'size': 10}
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fig = go.Figure({
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'data': traces,
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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 _add_sleep_entry(y_df, text_df, index, column, duration, text=''):
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"""
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Create a duration and text description entry in a DataFrame and return
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the next index on success.
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:param y_df: the y values DataFrame.
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:param text_df: the text values DataFrame.
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:param index: the index to target in both y_df and text_df.
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:param column: the column (date) to make the entry in.
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:param duration: the duration of the entry.
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:param text: text to go with the entry (displays on graph hover).
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:return: the next index of the DataFrames.
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"""
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if column not in y_df:
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y_df.assign(**{column: 0 in range(0, len(y_df.index))})
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text_df.assign(**{column: 0 in range(0, len(text_df.index))})
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index = 0
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y_df.at[index, column] = duration
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text_df.at[index, column] = text
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return index + 1
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