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refact: date handling

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This commit is contained in:
Thomas Lambert
2023-04-29 00:38:15 +02:00
parent 0367fa6a66
commit 9c95eb0e52
2 changed files with 150 additions and 138 deletions
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157
lua/telekasten.lua
View File

@@ -445,134 +445,10 @@ end
-- end of image stuff
local function daysuffix(day)
day = tostring(day)
if (day == "1") or (day == "21") or (day == "31") then
return "st"
end
if (day == "2") or (day == "22") then
return "nd"
end
if (day == "3") or (day == "23") then
return "rd"
end
return "th"
end
local daymap = {
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
"Sunday",
}
local monthmap = {
"January",
"February",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December",
}
local dateformats = {
date = "%Y-%m-%d",
week = "%V",
isoweek = "%Y-W%V",
time24 = "%H:%M:%S",
time12 = "%I:%M:%S %p",
}
local function calculate_dates(date)
local time = os.time(date)
local dinfo = os.date("*t", time) -- this normalizes the input to a full date table
local oneday = 24 * 60 * 60 -- hours * days * seconds
local oneweek = 7 * oneday
local df = dateformats
local dates = {}
-- this is to compensate for the calendar showing M-Su, but os.date Su is
-- always wday = 1
local wday = dinfo.wday - 1
if wday == 0 then
wday = 7
end
dates.year = dinfo.year
dates.month = dinfo.month
dates.day = dinfo.day
dates.hdate = daymap[wday]
.. ", "
.. monthmap[dinfo.month]
.. " "
.. dinfo.day
.. daysuffix(dinfo.day)
.. ", "
.. dinfo.year
local zonehour = string.sub(os.date("%z"), 1, 3)
local zonemin = string.sub(os.date("%z"), 4, 5)
dates.rfc3339 = os.date(df.date, time)
.. os.date("T%H:%M:%S")
.. "Z"
.. zonehour
.. ":"
.. zonemin
dates.time24 = os.date(df.time24, time)
dates.time12 = os.date(df.time12, time)
dates.date = os.date(df.date, time)
dates.prevday = os.date(df.date, time - oneday)
dates.nextday = os.date(df.date, time + oneday)
dates.week = os.date(df.week, time)
dates.prevweek = os.date(df.week, time - oneweek)
dates.nextweek = os.date(df.week, time + oneweek)
dates.isoweek = os.date(df.isoweek, time)
dates.isoprevweek = os.date(df.isoweek, time - oneweek)
dates.isonextweek = os.date(df.isoweek, time + oneweek)
-- things get a bit hairy at the year rollover. W01 only starts the first week ofs
-- January if it has more than 3 days. Partial weeks with less than 4 days are
-- considered W52, but os.date still sets the year as the new year, so Jan 1 2022
-- would appear as being in 2022-W52. That breaks linear linking respective
-- of next/prev week, so we want to put the days of that partial week in
-- January in 2021-W52. This tweak will only change the ISO formatted week string.
if tonumber(dates.week) == 52 and tonumber(dates.month) == 1 then
dates.isoweek = tostring(dates.year - 1) .. "-W52"
end
-- Find the Sunday that started this week regardless of the calendar
-- display preference. Then use that as the base to calculate the dates
-- for the days of the current week.
-- Finally, adjust Sunday to suit user calendar preference.
local starting_sunday = time - (wday * oneday)
local sunday_offset = 0
if M.Cfg.calendar_opts.calendar_monday == 1 then
sunday_offset = 7
end
dates.monday = os.date(df.date, starting_sunday + (1 * oneday))
dates.tuesday = os.date(df.date, starting_sunday + (2 * oneday))
dates.wednesday = os.date(df.date, starting_sunday + (3 * oneday))
dates.thursday = os.date(df.date, starting_sunday + (4 * oneday))
dates.friday = os.date(df.date, starting_sunday + (5 * oneday))
dates.saturday = os.date(df.date, starting_sunday + (6 * oneday))
dates.sunday = os.date(df.date, starting_sunday + (sunday_offset * oneday))
return dates
end
local function linesubst(line, title, dates, uuid)
if dates == nil then
dates = calculate_dates()
dates =
dateutils.calculate_dates(nil, M.Cfg.calendar_opts.calendar_monday)
end
if uuid == nil then
uuid = ""
@@ -718,7 +594,8 @@ local function check_if_daily_or_weekly(title)
local is_daily = false
local is_weekly = false
local dateinfo = calculate_dates() -- sane default
local dateinfo =
dateutils.calculate_dates(nil, M.Cfg.calendar_opts.calendar_monday) -- sane default
local start, _, year, month, day = title:find(daily_match)
if start ~= nil then
@@ -728,7 +605,10 @@ local function check_if_daily_or_weekly(title)
dateinfo.year = tonumber(year)
dateinfo.month = tonumber(month)
dateinfo.day = tonumber(day)
dateinfo = calculate_dates(dateinfo)
dateinfo = dateutils.calculate_dates(
dateinfo,
M.Cfg.calendar_opts.calendar_monday
)
end
end
end
@@ -740,7 +620,10 @@ local function check_if_daily_or_weekly(title)
is_weekly = true
-- ISO8601 week -> date calculation
dateinfo = dateutils.isoweek_to_date(tonumber(year), tonumber(week))
dateinfo = calculate_dates(dateinfo)
dateinfo = dateutils.calculate_dates(
dateinfo,
M.Cfg.calendar_opts.calendar_monday
)
end
end
return is_daily, is_weekly, dateinfo
@@ -1266,7 +1149,7 @@ local function FindDailyNotes(opts)
return
end
local today = os.date(dateformats.date)
local today = os.date(dateutils.dateformats.date)
local fname = M.Cfg.dailies .. "/" .. today .. M.Cfg.extension
local fexists = fileutils.file_exists(fname)
if
@@ -1321,7 +1204,7 @@ local function FindWeeklyNotes(opts)
return
end
local title = os.date(dateformats.isoweek)
local title = os.date(dateutils.dateformats.isoweek)
local fname = M.Cfg.weeklies .. "/" .. title .. M.Cfg.extension
local fexists = fileutils.file_exists(fname)
if
@@ -1692,14 +1575,17 @@ end
-- find note for date and create it if necessary.
--
local function GotoDate(opts)
opts.dates = calculate_dates(opts.date_table)
opts.dates = dateutils.calculate_dates(
opts.date_table,
M.Cfg.calendar_opts.calendar_monday
)
opts.insert_after_inserting = opts.insert_after_inserting
or M.Cfg.insert_after_inserting
opts.close_after_yanking = opts.close_after_yanking
or M.Cfg.close_after_yanking
opts.journal_auto_open = opts.journal_auto_open or M.Cfg.journal_auto_open
local word = opts.date or os.date(dateformats.date)
local word = opts.date or os.date(dateutils.dateformats.date)
local fname = M.Cfg.dailies .. "/" .. word .. M.Cfg.extension
local fexists = fileutils.file_exists(fname)
@@ -1765,7 +1651,7 @@ local function GotoToday(opts)
return
end
local today = os.date(dateformats.date)
local today = os.date(dateutils.dateformats.date)
opts.date_table = os.date("*t")
opts.date = today
opts.dailies_create_nonexisting = true -- Always use template for GotoToday
@@ -2556,7 +2442,8 @@ local function GotoThisWeek(opts)
return
end
local dinfo = calculate_dates()
local dinfo =
dateutils.calculate_dates(nil, M.Cfg.calendar_opts.calendar_monday)
local title = dinfo.isoweek
local fname = M.Cfg.weeklies .. "/" .. title .. M.Cfg.extension
local fexists = fileutils.file_exists(fname)

131
lua/telekasten/utils/dates.lua
View File

@@ -1,7 +1,7 @@
local M = {}
local date = require("telekasten.utils.luadate")
local luadate = require("telekasten.utils.luadate")
--- returns the day of week (1..Monday, ..., 7..Sunday) for Dec, 31st of year
--- Returns the day of week (1..Monday, ..., 7..Sunday) for Dec, 31st of year
--- see https://webspace.science.uu.nl/~gent0113/calendar/isocalendar.htm
--- see https://en.wikipedia.org/wiki/ISO_week_date
M.dow_for_year = function(year)
@@ -70,7 +70,7 @@ end
-- the algo on wikipedia seems wrong, so we opt for full-blown luadate
M.isoweek_to_date = function(year, isoweek)
local ret = date(year .. "-W" .. string.format("%02d", isoweek) .. "-1")
local ret = luadate(year .. "-W" .. string.format("%02d", isoweek) .. "-1")
return {
year = ret:getyear(),
month = ret:getmonth(),
@@ -78,6 +78,131 @@ M.isoweek_to_date = function(year, isoweek)
}
end
local function daysuffix(day)
day = tostring(day)
if (day == "1") or (day == "21") or (day == "31") then
return "st"
end
if (day == "2") or (day == "22") then
return "nd"
end
if (day == "3") or (day == "23") then
return "rd"
end
return "th"
end
local daymap = {
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
"Sunday",
}
local monthmap = {
"January",
"February",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December",
}
M.dateformats = {
date = "%Y-%m-%d",
week = "%V",
isoweek = "%Y-W%V",
time24 = "%H:%M:%S",
time12 = "%I:%M:%S %p",
}
function M.calculate_dates(date, calendar_monday)
local time = os.time(date)
local dinfo = os.date("*t", time) -- this normalizes the input to a full date table
local oneday = 24 * 60 * 60 -- hours * days * seconds
local oneweek = 7 * oneday
local df = M.dateformats
local dates = {}
-- this is to compensate for the calendar showing M-Su, but os.date Su is
-- always wday = 1
local wday = dinfo.wday - 1
if wday == 0 then
wday = 7
end
dates.year = dinfo.year
dates.month = dinfo.month
dates.day = dinfo.day
dates.hdate = daymap[wday]
.. ", "
.. monthmap[dinfo.month]
.. " "
.. dinfo.day
.. daysuffix(dinfo.day)
.. ", "
.. dinfo.year
local zonehour = string.sub(os.date("%z"), 1, 3)
local zonemin = string.sub(os.date("%z"), 4, 5)
dates.rfc3339 = os.date(df.date, time)
.. os.date("T%H:%M:%S")
.. "Z"
.. zonehour
.. ":"
.. zonemin
dates.time24 = os.date(df.time24, time)
dates.time12 = os.date(df.time12, time)
dates.date = os.date(df.date, time)
dates.prevday = os.date(df.date, time - oneday)
dates.nextday = os.date(df.date, time + oneday)
dates.week = os.date(df.week, time)
dates.prevweek = os.date(df.week, time - oneweek)
dates.nextweek = os.date(df.week, time + oneweek)
dates.isoweek = os.date(df.isoweek, time)
dates.isoprevweek = os.date(df.isoweek, time - oneweek)
dates.isonextweek = os.date(df.isoweek, time + oneweek)
-- things get a bit hairy at the year rollover. W01 only starts the first week ofs
-- January if it has more than 3 days. Partial weeks with less than 4 days are
-- considered W52, but os.date still sets the year as the new year, so Jan 1 2022
-- would appear as being in 2022-W52. That breaks linear linking respective
-- of next/prev week, so we want to put the days of that partial week in
-- January in 2021-W52. This tweak will only change the ISO formatted week string.
if tonumber(dates.week) == 52 and tonumber(dates.month) == 1 then
dates.isoweek = tostring(dates.year - 1) .. "-W52"
end
-- Find the Sunday that started this week regardless of the calendar
-- display preference. Then use that as the base to calculate the dates
-- for the days of the current week.
-- Finally, adjust Sunday to suit user calendar preference.
local starting_sunday = time - (wday * oneday)
local sunday_offset = 0
if calendar_monday == 1 then
sunday_offset = 7
end
dates.monday = os.date(df.date, starting_sunday + (1 * oneday))
dates.tuesday = os.date(df.date, starting_sunday + (2 * oneday))
dates.wednesday = os.date(df.date, starting_sunday + (3 * oneday))
dates.thursday = os.date(df.date, starting_sunday + (4 * oneday))
dates.friday = os.date(df.date, starting_sunday + (5 * oneday))
dates.saturday = os.date(df.date, starting_sunday + (6 * oneday))
dates.sunday = os.date(df.date, starting_sunday + (sunday_offset * oneday))
return dates
end
local function check_isoweek(year, isoweek, ydate)
print("*********** KW " .. isoweek .. " " .. year .. ": ")
-- local ret = M.weeknumber_to_date(year, isoweek)