FANDOM


-- Replacement for [[Template:Time ago]]
local numberSpell = require('Module:NumberSpell')._main
local yesno = require('Module:Yesno')
 
local p = {}
 
-- 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] = { 'Sekunde', 'Sekunden' },
	[60] = { 'Minute', 'Minuten' },
	[3600] = { 'Stunde', 'Stunden' },
	[86400] = { 'Tag', 'Tagen' },
	[604800] = { 'Woche', 'Wochen' },
	[2678400] = { 'Monat', 'Monaten' },
	[31557600] = { 'Jahr', 'Jahren' }
}
 
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 purge = args.purge
	local spell_out = args.spellout
	local spell_out_max = args.spelloutmax
 
	-- Add a purge link if something (usually "yes") is entered into the purge parameter
	if purge then
		purge = ' <span class="plainlinks">([' .. mw.title.getCurrentTitle():fullUrl('action=purge') .. ' purge])</span>'
	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], true )
	if not noError then
		return '<strong class="error">Error: first parameter cannot be parsed as a date or time.</strong>'
	end
 
	-- Store the difference between the current time and the inputted time, as well as its absolute value.
	local timeDiff = lang:formatDate( 'U', nil, true ) - 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.
		local autoMagnitudeData = {
			{ denom = 63115200, amn = 31557600 },
			{ denom = 2764800, amn = 2678400 },
			{ denom = 86400, amn = 86400 },
			{ denom = 7200, amn = 3600 },
			{ denom = 120, amn = 60 }
		}
		for i, t in ipairs( autoMagnitudeData ) do
			if absTimeDiff / t.denom >= 1 then
				auto_magnitude_num = t.amn
				break
			end
		end
		auto_magnitude_num = auto_magnitude_num or 1
		if min_magnitude then
			min_magnitude_num = timeText[min_magnitude]
		else
			min_magnitude_num = -1
		end
	end
 
	if not min_magnitude_num then
		-- Default to seconds if an invalid magnitude is entered.
		min_magnitude_num = 1
	end
 
	local magnitude_num = math.max( min_magnitude_num, auto_magnitude_num )
	local result_num = math.floor ( absTimeDiff / magnitude_num )
 
	local punctuation_key, prefix
    if result_num == 1 then
		punctuation_key = 1
	else
		punctuation_key = 2
	end
	if timeDiff >= 0 then -- Past
		prefix = 'vor'
    else -- Future
		prefix = 'in'
	end
	result_unit = timeUnits[ magnitude_num ][ punctuation_key ]
 
	-- Convert numerals to words if appropriate.
	spell_out_max = tonumber( spell_out_max ) -- Would cause script errors if not a number.
	local result_num_text
	if ( spell_out == 'auto' and 1 <= result_num and result_num <= 9 and result_num <= ( spell_out_max or 9 ) )
		or ( yesno( spell_out ) and 1 <= result_num and result_num <= 100 and result_num <= ( spell_out_max or 100 ) )
	then
		result_num_text = numberSpell( result_num )
	else
		result_num_text = tostring( result_num )
	end
 
	result = prefix .. ' ' .. result_num_text .. ' ' .. result_unit
	return result .. purge
end
 
function p.main( frame )
	local args = require( 'Module:Arguments' ).getArgs( frame, {
		valueFunc = function( k, v )
			if v then
				v = v:match( '^%s*(.-)%s*$' ) -- Trim whitespace.
				if v ~= '' then
					return v
				end
			end
			return nil
		end,
		wrappers = 'Template:Time ago'
	})
	return p._main( args )
end
 
return p
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