Module:Sandbox/Bradv/Case

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local p = {}

local sub = mw.ustring.sub
local find = mw.ustring.find
local gmatch = mw.ustring.gmatch
local trim = mw.text.trim

local prefix = 'Wikipedia:Arbitration/Requests/Case/'
local ptalk = 'Wikipedia talk:Arbitration/Requests/Case/'

function render ( tbl, count )
	local output = ''
	if (count > 0) then
		local div = mw.html.create( 'div' )
		div
			:css( 'text-align', 'left' )
			:wikitext( '<p>\n' .. table.concat(tbl, '</p><p>\n') .. '</p>\n' )
		output = tostring( div )
	else
		output = "''none''"
	end
	return output
end

function p.dates( frame )
	local case = frame.args[1] or frame.args.case
	return p._dates( case )
end
function p._dates( case )
	local page = prefix .. case
	local pagecontent = mw.title.new(page):getContent()
	local result = {}
	local re = '\n<big>(.-)</big>'
	for str in gmatch (pagecontent, re) do
		table.insert(result, trim(str))
	end
	return render( result, 1 )
end

function p.decision( frame )
	local case = frame.args[1] or frame.args.case
	return p._decision( case )
end
function p._decision( case )
	local page = prefix .. case
	local pagecontent = mw.title.new(page):getContent()
	local fdstart = find(pagecontent, '\n=%s*Final decision')
	local fd = sub(pagecontent, fdstart)
	local result = {}
	local count = 0
	local re = '\n==(.-)=='
	for str in gmatch(fd, re) do
		if find(str, '^%s*Enforcement') then
			--ignore
		else
			if find(str, '^=') then
				s = trim(sub(str, 2))
				table.insert(result, ':[[' .. page .. '#' .. s .. '|' .. s .. ']]')
			else
				table.insert(result, "'''" .. str .. "'''")
			end
			count = count + 1
		end
	end
	
	return render ( result, count )
end

function p.arca( frame )
	local case = frame.args[1] or frame.args.case
	return p._arca( case )
end
function p._arca( case )
	local page = ptalk .. case
	local pagecontent = mw.title.new(page):getContent()
	local result = {}
	local count = 0
	local re = '\n==(.-)=='
	for str in gmatch (pagecontent, re) do
		str = trim(str)
		if find(str, '^Amendment request')
		or find(str, '^Clarification request') then
			table.insert(result, '[[' .. page .. '#' .. str .. '|' .. str .. ']]')
			count = count + 1
		end
	end
	return render ( result, count )
end

function p.sections( frame )
	local case = frame.args[1] or frame.args.case
	return p._sections( case )
end
function p._sections( case )
	local page = prefix .. case
	local talkpage = ptalk .. case
	
	local result = {}
	
	function add (name)
		local path = ''
		if name then
			path = '/' .. name
		else
			name = 'Case'
		end
		
		local title = mw.title.new(page .. path)
		if (title.exists) then
			table.insert(result, 
				'[[' .. page .. path .. '|' .. name .. ']]'
				.. ' (' .. '[[' .. talkpage .. path .. '|' .. 'talk]])'
				) 
		end
	end
	
	add()
	add('Evidence')
	add('Workshop')
	add('Proposed decision')

	return table.concat(result, ' • ')
end

return p