# Module:Time ago

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-- Implement Template:Time ago

local numberSpell, yesno -- lazy load

function numberSpell(arg) numberSpell = require('Module:NumberSpell')._main return numberSpell(arg) end

function yesno(arg) yesno = require('Module:Yesno') return yesno(arg) end

local p = {}

-- Table to convert entered text values to numeric values. local timeText = { ['seconds'] = 1, ['minutes'] = 60, ['hours'] = 3600, ['days'] = 86400, ['weeks'] = 604800, ['months'] = 2629800, -- 365.25 * 24 * 60 * 60 / 12 ['years'] = 31557600 }

-- Table containing tables of possible units to use in output. local timeUnits = { [1] = { 'ثانیه', 'ثانیه', "ثانیه", "ثانیه" }, [60] = { 'دقیقه', 'دقیقه', "دقیقه'", "دقیقه'" }, [3600] = { 'ساعت', 'ساعت', "ساعت", "ساعت'" }, [86400] = { 'روز', 'روز', "روز", "روز'" }, [604800] = { 'هفته', 'هفته', "هفته", "هفته'", unit = 'w' }, [2629800] = { 'ماه', 'ماه', "ماه", "ماه'", unit = 'm' }, [31557600] = { 'سال', 'سال', "سال", "سال'", unit = 'y' }}

function p._main( args ) -- Initialize variables local lang = mw.language.getContentLanguage() local auto_magnitude_num local min_magnitude_num local magnitude = args.magnitude local min_magnitude = args.min_magnitude 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 if args[1] then args[1] = args[1]:gsub( "ژانویه", "January") args[1] = args[1]:gsub( "فوریه", "February") args[1] = args[1]:gsub( "مارس", "March") args[1] = args[1]:gsub( "آوریل", "April") args[1] = args[1]:gsub( "مه", "May") args[1] = args[1]:gsub( "ژوئن", "June") args[1] = args[1]:gsub( "ژوئیه", "July") args[1] = args[1]:gsub( "اوت", "August") args[1] = args[1]:gsub( "سپتامبر", "September") args[1] = args[1]:gsub( "اکتبر", "October") args[1] = args[1]:gsub( "نوامبر", "November") args[1] = args[1]:gsub( "دسامبر", "December") end -- Check that the entered timestamp is valid. If it isn't, then give an error message. local success, inputTime = pcall( lang.formatDate, lang, 'xnU', args[1] ) if not success 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( 'xnU' ) - 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 = { { factor = 2, amn = 31557600 }, { factor = 2, amn = 2629800 }, { factor = 2, amn = 86400 }, { factor = 2, amn = 3600 }, { factor = 2, amn = 60 } } for _, t in ipairs( autoMagnitudeData ) do if absTimeDiff / t.amn >= t.factor 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 result_num local magnitude_num = math.max( min_magnitude_num, auto_magnitude_num ) local unit = timeUnits[magnitude_num].unit if unit and absTimeDiff >= 864000 then local Date = require('Module:Date')._Date local input = lang:formatDate('Y-m-d H:i:s', args[1]) -- Date needs a clean date input = Date(input) if input then local id if input.hour == 0 and input.minute == 0 then id = 'currentdate' else id = 'currentdatetime' end result_num = (Date(id) - input):age(unit) end end result_num = result_num or math.floor ( absTimeDiff / magnitude_num )

local punctuation_key, suffix if timeDiff >= 0 then -- Past if result_num == 1 then punctuation_key = 1 else punctuation_key = 2 end if args.ago == then suffix = else suffix = ' ' .. (args.ago or 'پیش') end else -- Future if args.ago == then suffix = if result_num == 1 then punctuation_key = 1 else punctuation_key = 2 end else suffix = ' time' if result_num == 1 then punctuation_key = 3 else punctuation_key = 4 end end end local result_unit = timeUnits[ magnitude_num ][ punctuation_key ]

-- Convert numerals to words if appropriate. local spell_out = args.spellout local spell_out_max = tonumber(args.spelloutmax) local result_num_text if spell_out and ( ( 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

local result = result_num_text .. ' ' .. result_unit .. suffix -- Spaces for suffix have been added in earlier. 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 k == 'پیش' or v ~= then return v end end return nil end, wrappers = 'الگو:Time ago' }) return p._main( args ) end

return p

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