-- Ste1la Google Code-in, Names of People
local p = {}

p.getName = function(frame)
	local name = frame.args.name or ""
	local format = frame.args.format
	local givenName = ""
	local lastName = ""
	local obtain = 0
	
	if name == "" then
		return "No name given"
	end
	
	--gets rid of any appendages
	if name:find("Jr") or name:find("Jr.") or name:find("Sr") or
		name:find("Sr.") or name:find("II") or name:find("III") then
			local i, j = name:reverse():find("%S+")
			name = name:reverse():sub(j+1):reverse()
	end
	
	--check if chinese
	if obtain == 0 then
		local exist
		local chineseList = {"Wang", "Li", "Zhang", "Huang", "Liu", "Chen", "Yang", "Zhao",
			"Wu", "Zhou", "Xu", "Wen", "Zhu", "Fan", "Zu", "Xu", "Mao", "Sun", "He", "Gao", "Zheng"}
		for i = 1, #chineseList do
			if name:find(chineseList[i]) then
				exist = 1
			end
		end
		
		if exist == 1 then
			lastName = name:match("%a+")
			local i, j = name:find(lastName)
			givenName = name:sub(j+2)
			if givenName:find("%(") then
				i = givenName:find("%(")
				givenName = givenName:sub(1, i - 2)
			end
			obtain = 1
		end
	end
	
	--check if dutch
	if obtain == 0 then
		local dutchList = {" van ", " de ", " ter ", " van de ", " van den ", " van der "}
		for i = 1, #dutchList do
			if name:find(dutchList[i]) then
				i, j = name:find(dutchList[i])
				lastName = name:sub(i)
				givenName = name:sub(1, i - 1)
				obtain = 1
			end
		end
		
		--[[if i ~= nil then
			lastName = name:sub(i)
			givenName = name:sub(1, i - 2)
			obtain = 1
		elseif name:find("de") then
			i, j = name:find("de")
			lastName = name:sub(i)
			givenName = name:sub(1, i - 2)
			obtain = 1
		elseif name:find("ter") then
			i, j = name:find("ter")
			lastName = name:sub(i)
			givenName = name:sub(1, i - 2)
			obtain = 1		
		end]]
	end
	
	--check if spanish
	if format == "es" or name:find(" y ") then
		i, j = name:find(" de ")
		if i ~= nil then
			lastName = name:sub(j + 1)
			k, l = lastName:reverse():match("(%S+) (%S+)")
			if k ~= nil and l ~= nil then
				if lastName:find("de") == nil then
				lastName = l:reverse() .. " " .. k:reverse()
				end
			end
			givenName = name:sub(1, i - 1)
			obtain = 1
		elseif name:find(" y ") then
			i, j, k = name:reverse():match("(%S+) (%S+) (%S+)")
    		lastName = k:reverse() .. " " .. j:reverse() .. " " .. i:reverse()
			i, j = name:find(lastName)
			givenName = name:sub(1, i - 2)
			obtain = 1
		else
			givenName = name:match("%a+")
			i, j = name:find(givenName)
			lastName = name:sub(j + 2)
			obtain = 1
		end
	end
	
	--check if thai
	if format == "th" then
		givenName = name:match("%S+")
		i, j = name:find(givenName)
		lastName = name:sub(j + 2)
		obtain = 1
	end
	
	--normal name
	if obtain == 0 then
		i, j = name:reverse():find("%S+")
		lastName = name:reverse():sub(i, j)
		lastName = lastName:reverse()
	
		givenName = name:reverse():sub(j + 2)
		givenName = givenName:reverse()
		--[[lastName = name:reverse():match("%S+")
		lastName = lastName:reverse()
		i, j = name:find(lastName)
		givenName = name:sub(1, i-2)]]
	end
	
	
	out = "''Given'' = " .. givenName .. " -- ''Family'' = " .. lastName
	return out
end

return p