模块:Countdown

此模块的文档可以在模块:Countdown/doc创建

local p = {}

-- Constants
local lang = mw.language.getContentLanguage()
local getArgs = require('Module:Arguments').getArgs

local function formatMessage(secondsLeft, event, color)
	local timeLeft = lang:formatDuration(secondsLeft, {'years', 'days', 'hours', 'minutes'})

	-- Color and bold the numbers, because it makes them look important.
	timeLeft = string.gsub(timeLeft, '(%d+)', '<span> %1</span>')
	return string.format('<span style="font-weight: bold;">%s</span>', timeLeft)
end

function p.main(frame)
	local args = getArgs(frame)

	if not (args.year and args.month and args.day) then
		return '<strong class="error">错误：需指定年、月、日。</strong>'
	end

	local timeArgs = {year=args.year, month=args.month, day=args.day, hour=args.hour, min=args.minute, sec=args.second}
	for k,v in pairs(timeArgs) do
		if not tonumber(v) then
			error('Argument ' .. k .. ' could not be parsed as a number: ' .. v)
		end
	end
	local eventTime = os.time(timeArgs)
	local timeToStart = os.difftime(eventTime, os.time()) -- (future time - current time)
	local text
	if timeToStart > 0 then
		-- Event has not begun yet
		text = formatMessage(timeToStart, args.event or '事件开始', args.color)
	elseif args.duration then
		local timeToEnd
		if args['duration unit'] then
			-- Duration is in unit other than seconds, use formatDate to add
			timeToEnd = tonumber(lang:formatDate('U', '@' .. tostring(timeToStart) .. ' +' .. tostring(args.duration) .. ' ' .. args['duration unit']))
		else
			timeToEnd = timeToStart + (tonumber(args.duration) or error('args.duration should be a number of seconds', 0))
		end
		if timeToEnd > 0 then
			-- Event is in progress
			text = args.eventstart or formatMessage(timeToEnd, args.color)
		else
			-- Event had a duration and has now ended
			text = args.eventend or ((lang:ucfirst(args.event or '事件')) .. ' 已结束。')
		end
	else
		-- Event had no duration and has begun
		text = args.eventstart or ((lang:ucfirst(args.event or '事件')) .. ' 已开始。')
	end
	return text
end

return p