Module:Time ago

-- Replacement for Template:Time ago local getArgs = require('Module:Arguments').getArgs

local p = {}

function p.main( frame ) local args = getArgs( frame ) return p._main( args ) end

function p._main( args ) -- Initialize variables local lang = mw.language.getContentLanguage local auto_magnitude_num local min_magnitude_num local result local result_unit local magnitude = args.magnitude local min_magnitude = args.min_magnitude local ago = args.ago or 'ago' local purge = args.purge

-- Add a purge link if something (usually "yes") is entered into the purge parameter if purge then purge = ' ([' .. mw.title.getCurrentTitle:fullUrl('action=purge') .. ' purge]) ' else purge = '' end

-- Check that the entered timestamp is valid. If it isn't, then give an error message. local noError, inputTime = pcall( lang.formatDate, lang, 'U', args[1] ) if not noError then return ' Error: first parameter cannot be parsed as a date or time. '	end

-- Store the difference between the current time and the inputted time, as well as its absolute value. local timeDiff = lang:formatDate( 'U' ) - inputTime local absTimeDiff = math.abs( timeDiff )

if magnitude then auto_magnitude_num = 0 min_magnitude_num = timeText[magnitude] else -- Calculate the appropriate unit of time if it was not specified as an argument. if absTimeDiff / 120 >= 1 then auto_magnitude_num = 60 else auto_magnitude_num = 1 end if absTimeDiff / 7200 >= 1 then auto_magnitude_num = 3600 end if absTimeDiff / 172800 >= 1 then auto_magnitude_num = 86400 end if absTimeDiff / 5356800 >= 1 then auto_magnitude_num = 2678400 end if absTimeDiff / 63115200 >= 1 then auto_magnitude_num = 31557600 end if min_magnitude then min_magnitude_num = timeText[min_magnitude] else min_magnitude_num = -1 end end

if not min_magnitude_num then min_magnitude_num = 1 end -- Default to seconds if an invalid magnitude is entered.

local magnitude_num = math.max( min_magnitude_num, auto_magnitude_num ) local result_num = math.floor ( absTimeDiff / magnitude_num )

if timeDiff >= 0 then -- Past if result_num == 1 then result_unit = timeUnits[ magnitude_num ][1] else result_unit = timeUnits[ magnitude_num ][2] end result = result_num .. ' ' .. result_unit .. ' ' .. ago else -- Future if result_num == 1 then result_unit = timeUnits[ magnitude_num ][3] else result_unit = timeUnits[ magnitude_num ][4] end result = result_num .. ' ' .. result_unit .. ' time' end

return result .. purge end

-- Table to convert entered text values to numeric values. timeText = { ['seconds'] = 1, ['minutes'] = 60, ['hours'] = 3600, ['days'] = 86400, ['weeks'] = 604800, ['months'] = 2678400, ['years'] = 31557600 }

-- Table containing tables of possible units to use in output. timeUnits = { [1] = { 'second', 'seconds', 'second\'s', 'seconds\'' }, [60] = { 'minute', 'minutes', 'minute\'s', 'minutes\'' }, [3600] = { 'hour', 'hours', 'hour\'s', 'hours\'' }, [86400] = { 'day', 'days', 'day\'s', 'days\'' }, [604800] = { 'week', 'weeks', 'week\'s', 'weeks\'' }, [2678400] = { 'month', 'months', 'month\'s', 'months\'' }, [31557600] = { 'year', 'years', 'year\'s', 'years\'' } }

return p