Module:WDL/sandbox

require('strict')

local getArgs = require('Module:Arguments').getArgs
local roundAndPad = require('Module:Math')._precision_format

local p = {}

local function total(won, drawn, lost)
	if not won and not drawn and not lost then
		return ''
	else
		return (won or 0) + (drawn or 0) + (lost or 0)
	end
end

local function displayWinPercent(frame, winPercent, decimals)
	local retval = ''
	if winPercent < 10 then
		retval = '<span style="visibility:hidden;color:transparent;">00</span>'
	elseif winPercent < 100 then
		retval = '<span style="visibility:hidden;color:transparent;">0</span>'
	end
	return retval .. frame:expandTemplate{title = 'Number table sorting', args = { roundAndPad(winPercent, decimals or 2) }}
end

local function pct(frame, played, won, drawn, lost, decimals, winpctdraw)
	if played == '-' or played == '—' then
		return '—'
	elseif not played then
		if not won and not drawn and not lost then
			return ''
		elseif (won or 0) + (drawn or 0) + (lost or 0) <= 0 then
			return '<span style="display:none">!</span>—'
		end
		
		played = (won or 0) + (drawn or 0) + (lost or 0)
	elseif tonumber(played) <= 0 then
		return '<span style="display:none">!</span>—'
	end
	
	local wins = (won or 0)
	local draws = tonumber(drawn) or 0
	local games = played
	if draws > 0 then
		if winpctdraw == 'ignore'then
			-- treat ignored draws like the game was never played
			games = games - draws
		elseif winpctdraw == 'loss' then
			-- don't have to do anything - this was the previous behavior
		else  -- default to 'half'
			wins = wins + (draws / 2)
		end
	end
	
	return displayWinPercent(frame, 100 * wins / games, decimals)
end

function p.main(frame, otherargs)
	local args = otherargs or getArgs(frame)
	local tableprefix = string.format('| style="%stext-align:%s" |', args.total and 'font-weight:bold;background:#efefef;' or '', args.align or 'center')
	local played = total(args[2], args[3], args[4])
	local retval = tableprefix .. frame:expandTemplate{title = 'Number table sorting', args = { played }} .. '\n'
	retval = retval .. tableprefix .. frame:expandTemplate{title = 'Number table sorting', args = { args[2] }} .. '\n'
	retval = retval .. tableprefix .. frame:expandTemplate{title = 'Number table sorting', args = { args[3] }} .. '\n'
	retval = retval .. tableprefix .. frame:expandTemplate{title = 'Number table sorting', args = { args[4] }} .. '\n'
	if args['for'] then
		retval = retval .. tableprefix .. frame:expandTemplate{title = 'Number table sorting', args = { args['for'] }} .. '\n'
	end
	if args.against then
		retval = retval .. tableprefix .. frame:expandTemplate{title = 'Number table sorting', args = { args.against }} .. '\n'
	end
	if args.diff == 'yes' then
		if tonumber(args['for']) and tonumber(args.against) then
			retval = retval .. tableprefix .. string.format('%s%d\n', tonumber(args['for']) < tonumber(args.against) and '−' or '+', math.abs(args['for'] - args.against))
		else
			retval = retval .. tableprefix .. '<span style="display:none">!</span>—\n'
		end
	end
	if args.winpctdraw then
		retval = retval .. tableprefix .. frame:expandTemplate{title = 'Number table sorting', args = { args.winpctdraw }} .. '\n'
	end
	
	return retval .. tableprefix .. pct(frame, played, args[2], args[3], args[4], args.decimals, args.winpctdraw)
end

return p