Module:Time ago

Documentation for this module may be created at Module:Time ago/doc

local p = {}

function p.timeAgo( frame )
	local lang = mw.language.getContentLanguage()
	local purge = ''
	
	if ( frame.args.purge ) then
		purge = '&#32;<span class="plainlinks">([' .. mw.title.getCurrentTitle().fullUrl('action=purge') .. ' purge])</span>'
	end
	
	local noError, inputTime = pcall( lang.formatDate, lang, 'U', frame.args[1] )
	if not noError then return "Error: first parameter cannot be parsed as a date or time." .. purge end
	local timeDiff = lang:formatDate( 'U' ) - inputTime
	local magnitude = frame.args.magnitude
	local min_magnitude = frame.args.min_magnitude
	local auto_magnitude_num
	local min_magnitude_num
	local result
	
	if magnitude then 
		auto_magnitude_num = 0
		min_magnitude_num = timeText[magnitude]
	else
		if ( math.floor( math.abs( timeDiff ) / 120 ) > 0 ) then
			auto_magnitude_num = 1
		else
			auto_magnitude_num = 0
		end
		if ( math.floor( math.abs( timeDiff ) / 7200 ) > 0 ) then auto_magnitude_num = 2 end
		if ( math.floor( math.abs( timeDiff ) / 172800 ) > 0 ) then auto_magnitude_num = 3 end
		if ( math.floor( math.abs( timeDiff ) / 5356800 ) > 0 ) then auto_magnitude_num = 5 end
		if ( math.floor( math.abs( timeDiff ) / 63115200 ) > 0 ) then auto_magnitude_num = 6 end
		if min_magnitude then min_magnitude_num = timeText[min_magnitude] else min_magnitude_num = 0 end
	end
	
	local magnitude_num = math.max( min_magnitude_num - 1, auto_magnitude_num )
	if ( timeDiff >= 0 ) then
		if ( magnitude_num == 0 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) ), { 'second', 'seconds' } )
		elseif ( magnitude_num == 1 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 60 ), { 'minute', 'minutes' } )
		elseif ( magnitude_num == 2 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 3600 ), { 'hour', 'hours' } )
		elseif ( magnitude_num == 3 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 86400 ), { 'day', 'days' } )
		elseif ( magnitude_num == 4 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 604800 ), { 'week', 'weeks' } )
		elseif ( magnitude_num == 5 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 2678400 ), { 'month', 'months' } )
		elseif ( magnitude_num == 6 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 31557600 ), { 'year', 'years' } ) end
	else
		if ( magnitude_num == 0 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) ), { 'second\'s', 'seconds\'' } )
		elseif ( magnitude_num == 1 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 60 ), { 'minute\'s', 'minutes\'' } )
		elseif ( magnitude_num == 2 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 3600 ), { 'hour\'s', 'hours\'' } )
		elseif ( magnitude_num == 3 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 86400 ), { 'day\'s', 'days\'' } )
		elseif ( magnitude_num == 4 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 604800 ), { 'week\'s', 'weeks\'' } )
		elseif ( magnitude_num == 5 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 2678400 ), { 'month\'s', 'months\'' } )
		elseif ( magnitude_num == 6 ) then result = lang:plural( math.floor ( math.abs( timeDiff ) / 31557600 ), { 'year\'s', 'years\'' } ) end		
	end
	return result .. purge
end

timeText = {
	["seconds"] = 0,
	["minutes"] = 1,
	["hours"] = 2,
	["days"] = 3,
	["weeks"] = 4,
	["months"] = 5,
	["years"] = 6,
}

return p