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8da2481 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 | defmodule Plausible.Stats.Time do
@moduledoc """
Collection of functions to work with time in queries.
"""
alias Plausible.Stats.{Query, DateTimeRange}
def utc_boundaries(%Query{
utc_time_range: time_range,
site_native_stats_start_at: native_stats_start_at
}) do
first =
time_range.first
|> DateTime.to_naive()
|> beginning_of_time(native_stats_start_at)
last = DateTime.to_naive(time_range.last)
{first, last}
end
defp beginning_of_time(candidate, native_stats_start_at) do
if NaiveDateTime.after?(native_stats_start_at, candidate) do
native_stats_start_at
else
candidate
end
end
def format_datetime(%Date{} = date), do: Date.to_string(date)
def format_datetime(%mod{} = datetime) when mod in [NaiveDateTime, DateTime],
do: Calendar.strftime(datetime, "%Y-%m-%d %H:%M:%S")
# Realtime graphs return numbers
def format_datetime(other), do: other
def time_dimension(query) do
Enum.find(query.dimensions, &time_dimension?/1)
end
def time_dimension?("time" <> _rest), do: true
def time_dimension?(_dimension), do: false
@doc """
Returns list of time bucket labels for the given query.
"""
def time_labels(query) do
time_labels_for_dimension(time_dimension(query), query)
end
defp time_labels_for_dimension("time:month", query) do
date_range = Query.date_range(query)
n_buckets =
Plausible.Times.diff(
date_range.last,
Date.beginning_of_month(date_range.first),
:month
)
Enum.map(n_buckets..0//-1, fn shift ->
date_range.last
|> Date.beginning_of_month()
|> Date.shift(month: -shift)
|> format_datetime()
end)
end
defp time_labels_for_dimension("time:week", query) do
date_range = Query.date_range(query)
n_buckets =
Plausible.Times.diff(
date_range.last,
Date.beginning_of_week(date_range.first),
:week
)
Enum.map(0..n_buckets, fn shift ->
date_range.first
|> Date.shift(week: shift)
|> date_or_weekstart(date_range)
|> format_datetime()
end)
end
defp time_labels_for_dimension("time:day", query) do
Query.date_range(query)
|> Enum.into([])
|> Enum.map(&format_datetime/1)
end
defp time_labels_for_dimension("time:hour", query) do
time_range = query.utc_time_range |> DateTimeRange.to_timezone(query.timezone)
from_timestamp = time_range.first |> Map.merge(%{minute: 0, second: 0})
n_buckets = DateTime.diff(time_range.last, from_timestamp, :hour)
Enum.map(0..n_buckets, fn step ->
from_timestamp
|> DateTime.to_naive()
|> NaiveDateTime.shift(hour: step)
|> format_datetime()
end)
end
defp time_labels_for_dimension("time:minute", query) do
time_range = query.utc_time_range |> DateTimeRange.to_timezone(query.timezone)
first_datetime = Map.put(time_range.first, :second, 0)
first_datetime
|> Stream.iterate(fn datetime -> DateTime.shift(datetime, minute: 1) end)
|> Enum.take_while(fn datetime ->
current_minute = Map.put(query.now, :second, 0)
DateTime.before?(datetime, time_range.last) &&
DateTime.before?(datetime, current_minute)
end)
|> Enum.map(&format_datetime/1)
end
def partial_time_labels(time_labels, query) do
time_dimension = time_dimension(query)
range_start = to_naive_in_tz!(query.utc_time_range.first, query.timezone)
range_end = to_naive_in_tz!(query.utc_time_range.last, query.timezone)
now = to_naive_in_tz!(query.now, query.timezone)
cutoff = if NaiveDateTime.before?(now, range_end), do: now, else: range_end
first_bucket = List.first(time_labels)
last_bucket = List.last(time_labels)
first_partial? =
case bucket_start(first_bucket, time_dimension) do
nil -> false
start -> NaiveDateTime.after?(range_start, start)
end
last_partial? =
case bucket_end(last_bucket, time_dimension) do
nil -> false
bucket_end -> NaiveDateTime.after?(bucket_end, cutoff)
end
[
if(first_partial?, do: first_bucket),
if(last_partial?, do: last_bucket)
]
|> Enum.uniq()
|> Enum.reject(&is_nil/1)
end
defp bucket_start(label, "time:week") do
case Date.from_iso8601(label) do
{:ok, date} -> NaiveDateTime.new!(Date.beginning_of_week(date), ~T[00:00:00])
_ -> nil
end
end
defp bucket_start(label, _time_dimension) do
case Date.from_iso8601(label) do
{:ok, date} ->
NaiveDateTime.new!(date, ~T[00:00:00])
_ ->
case NaiveDateTime.from_iso8601(label) do
{:ok, naive_datetime} -> naive_datetime
_ -> nil
end
end
end
defp bucket_end(label, time_dimension) do
shift_unit =
case time_dimension do
"time:month" -> :month
"time:week" -> :week
"time:day" -> :day
"time:hour" -> :hour
"time:minute" -> :minute
end
case bucket_start(label, time_dimension) do
nil -> nil
start -> NaiveDateTime.shift(start, [{shift_unit, 1}, {:second, -1}])
end
end
defp to_naive_in_tz!(utc_datetime, timezone) do
Plausible.Times.to_naive_datetime!(utc_datetime, timezone)
end
def present_index(time_labels, query) do
now = DateTime.shift_zone!(query.now, query.timezone)
current_label =
case time_dimension(query) do
"time:month" ->
DateTime.to_date(now)
|> Date.beginning_of_month()
|> Date.to_string()
"time:week" ->
DateTime.to_date(now)
|> date_or_weekstart(Query.date_range(query))
|> Date.to_string()
"time:day" ->
DateTime.to_date(now)
|> Date.to_string()
"time:hour" ->
Calendar.strftime(now, "%Y-%m-%d %H:00:00")
"time:minute" ->
Calendar.strftime(now, "%Y-%m-%d %H:%M:00")
end
Enum.find_index(time_labels, &(&1 == current_label))
end
def date_or_weekstart(date, date_range) do
weekstart = Date.beginning_of_week(date)
if Enum.member?(date_range, weekstart) do
weekstart
else
date
end
end
end
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