Module:Seats diagram

Documentation for this module may be created at Module:Seats diagram/doc

require('strict')
local p = {}
local getArgs = require('Module:Arguments').getArgs
local errorCategory = '[[Category:Compilation error of the Seats diagram template]]'
local getPartyData = require('Module:Political party').fetch

-- get the party color from Module:Party color
-- a = party; b = optional color
-- (copied from Module:Parliament_diagram)
local function color(a,b)
	local c = '#CCC'
	if (b) then
		c = b
	else
		c = getPartyData({a, "color"})
	end
	if string.sub(c,1,5) == '#' then c = "#" .. string.sub(c, 6, 11) end
	return c
end

local function partyShortLink(p)
	if getPartyData({p, 'abbrev', error=' '}) == ' ' then
		return p
	end
	
	local shortname = getPartyData({p, 'abbrev'}) or getPartyData({p, 'shortname'}) or ''
	
	if shortname then
		return '[['..p..'|'..shortname..']]'
	end
	return '[['..p..']]'
end



local function getData(args)
	local totalSeats = 0
	local data = {}
	local num = 1
	
	while (args['n'..num]) do
		if (tonumber(args['n'..num])) then
			data[num] = {
				n = args['n'..num] and tonumber(args['n'..num]),
				c = color(args['p'..num] or '', args['c'..num]),
				b = args['b'..num] or '-',
				p = args['p'..num] or 'Serie '..num
			}
			totalSeats = totalSeats + data[num].n
			num = num+1
		else
			error(string.format('Invalid value for n%d', num),2)
		end
	end
	
	data['totalSeats'] = totalSeats
	return data
end

local function generateDiagram(root, args, data)
	local totalSeats = 0
	local width = args.width or 240
	local range = root
	
	local lastRotation = 0
	
	for i, v in ipairs(data) do
		
		if v.n > 0 then
			range = range:tag('div')
			range:css('transform', 'rotate('..tostring(180 * lastRotation)..'deg)')
			range:css('width', tostring(width)..'px')
			range:css('height', tostring(width/2)..'px')
			range:css('position', 'relative')
			range:css('transform-origin', 'bottom center')
			range:css('border-top-left-radius', tostring(width/2)..'px')
			range:css('border-top-right-radius', tostring(width/2)..'px')
			range:css('background', v.c)
			
			range:tag('div') -- seats number
			     :css('text-align', 'center')
			     :css('width', tostring(width)..'px')
			     :css('height', tostring(width/2)..'px')
			     :css('position', 'absolute')
			     :css('transform', 'rotate('..tostring(-90 + 180 * (v.n/data.totalSeats/2))..'deg)')
			     :css('transform-origin', 'bottom center')
			     :css('top', '-15px')
			     :css('line-height', '15px')
			     :css('padding-bottom', '15px')
			     :wikitext(tostring(v.n))
			     :done()
			
			lastRotation = v.n/data.totalSeats
		
		end
	end
	
	root:tag('div') --inner circle
	    :css('width', tostring(width*3/8)..'px')
	    :css('height', tostring(width*3/8)..'px')
	    :css('margin', tostring(-width*3/16)..'px auto')
	    :css('border-radius', tostring(width*3/16)..'px')
	    :css('transform', 'translate(0,0)')
	    :css('background', args.background)
	    :done()
	    :tag('div') --cover below
	    :css('width', tostring(width+1)..'px')
	    :css('height', tostring(width*3/8)..'px')
	    :css('transform', 'translate(0,0)')
	    :css('background', args.background)
	    :done()
	
	return root
end

local function generateCaption(root, args, data)
	
	local list = root:tag('ul')
	list:css('column-count', '2')
	list:css('margin-left', '0')
	
	for i, v in ipairs(data) do
		list:tag('li') --li
			:css('list-style-type', 'none')
			:css('list-style-image', 'none')
			:css('margin', '0')
				:tag('span') --span
				:css('border', 'none')
				:css('width', '1.2em')
				:css('height', '1.2em')
				:css('background-color', v.c)
				:css('margin-right', '0.3em')
				:css('vertical-align', 'middle')
				:css('display', 'inline-block')
				:done()
			:wikitext(partyShortLink(v.p) .. ': ' .. v.n)
			:done()
	end
	
	return list
end

local function parliamentFloat(root, args, data)
	local width = args.width or 240
	local mainDiv = root:tag('div')
	
	mainDiv:addClass('thumb')
	mainDiv:addClass('t'..args['float'])
	
	local divThumbinner = mainDiv:tag('div')
	divThumbinner:addClass('thumbinner')
	divThumbinner:css('width', tostring(width*1.125)..'px')
	divThumbinner:css('padding-right', '6.5px !important')
	
	if args['title'] then
		local divTitle = divThumbinner:tag('div')
		divTitle:addClass('thumbdescription')
		divTitle:css('font-weight', 'bold')
		divTitle:css('text-align', 'center')
		divTitle:css('font-size', '100%')
		divTitle:wikitext(args['title'])
	end
	
	local divThumbimage = divThumbinner:tag('div')
	divThumbimage:addClass('thumbimage')
	divThumbimage:addClass('diagram')
	divThumbimage:addClass('noprint')
	divThumbimage:css('width', tostring(width)..'px')
	divThumbimage:css('height', tostring(width/2)..'px')
	divThumbimage:css('padding', tostring(width/15)..'px')
	divThumbimage:css('overflow', 'hidden')
	divThumbimage:css('background', args.background)
	
	generateDiagram(divThumbimage, args, data)
	
	local divThumbcaption = divThumbinner:tag('div')
	divThumbcaption:addClass('thumbcaption')
	divThumbcaption:wikitext('Total '..tostring(data.totalSeats)..' seats')
	
	generateCaption(divThumbcaption, args, data)
	
	return root
end

local function parliamentNonFloat(root, args, data)
	local width = args.width or 240
	local mainDiv = root:tag('div')
	
	local divCentered = mainDiv:tag('div')
	divCentered:addClass('centered')
	divCentered:css('margin-left', 'auto')
	divCentered:css('margin-right', 'auto')
	divCentered:addClass('diagram')
	divCentered:addClass('noprint')
	divCentered:css('width', tostring(width)..'px')
	divCentered:css('height', tostring(width/2)..'px')
	divCentered:css('padding', tostring(width/15)..'px')
	divCentered:css('padding-top', '15px')
	divCentered:css('padding-bottom', '5px')
	divCentered:css('overflow', 'hidden')
	divCentered:css('background', args.background)
	
	divCentered:css('text-align', 'center')
	
	generateDiagram(divCentered, args, data)
	
	return root
end

function p._parliament(args)
	local root = mw.html.create('div')
	
	local data = getData(args)
	
	if not args.background then args.background = 'white' end
	
	if args['float'] then
		return parliamentFloat(root, args, data)
	else
		return parliamentNonFloat(root, args, data)
	end
end

function p.parliament(frame)
	return p._parliament(getArgs(frame))
end

return p