Module:Calendar date/recurring: Difference between revisions

Revision as of 23:29, 26 March 2019

Latest revision as of 21:13, 21 October 2022

(12 intermediate revisions by 2 users not shown)

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require('Module:No globalsstrict')

local p = {}

function p.calculate(frame)

local pframeargs = frame:getParent().args

local args = pframe.args

local ONE_DAY = 86400 -- number of seconds in one day

local year = tonumber(args.year)

local month = tonumber(args.month)

local yearstrweeknumber = "year = " .. tonumber(args.yearweeknumber)

local dayofweek = tonumber(args.dayofweek)

return yearstr

local date = os.time{year=year, month=month, day=1}

local dateparts = os.date("*t", date)

if weeknumber > 0 then

-- find the first [dayofweek] of this month

while dateparts["wday"] ~= dayofweek do

date = date + ONE_DAY

dateparts = os.date("*t", date)

end

-- add the correct number of weeks

if weeknumber > 1 then

date = date + ((weeknumber - 1) * (7 * ONE_DAY))

end

else

-- find the first day of the next month

while dateparts["month"] == month do

date = date + ONE_DAY

dateparts = os.date("*t", date)

end

-- go back one day to get the last day of the month we want

date = date - ONE_DAY

dateparts = os.date("*t", date)

-- go backwards until we find the right day of week

while dateparts["wday"] ~= dayofweek do

date = date - ONE_DAY

dateparts = os.date("*t", date)

end

end

local result = os.date("%Y-%m-%d", date)

return yearstrresult

end