Editing Module:Sandbox/roguxivlo1101

--roguxivlo1101 Google Code-in 2019, Introduction to Lua in Wikipedia
--Lua Task 2 - Working with modules
local p = {}

function p.hello( frame )
	return "Hello, world!"
end

p.Hi = function(frame)
	strName = frame.args.name or "Jimmy"
	return "Hello from Lua to my friend " .. strName .. ".<br>"
end

function p.converttemp( frame )
	cels = tonumber(frame.args.celsius) or 0
	fahr = (cels*9/5)+32
	msg = cels .. " degrees Celsius is " .. fahr .. " degrees Fahrenheit."
	if cels > 9
	then 
		msg = msg .. " It is warm."
	else
		msg = msg .. " It is cold."
	end
	return msg
end

-- Task 4

function p.timestable(frame)
	local numb = tonumber( frame.args.numb ) or 2
	local out = numb .. " times table<br>"
	for i = 1, 12 do
		out = out .. numb .. " times " .. i .. " equals " .. i * numb .. "<br>"
	end
	return out
end

function p.people(frame)
	local friends = {"Agnetha", "Betty", "Carlos", "Davinder", "Eloise", "Adam", "Thomas", "Anna"}
	local msg = ""
	for i =1,#friends do
		msg = msg .. "Hello " .. friends[i] .. "<br>"
	end
	return msg
end

-- Task 5

function p.sent(frame)
	local txt = frame.args.text or ""
	local out = string.upper(string.sub(txt,1,1)) .. string.sub(txt,2)
	return out
end

function p.unpack(frame)
	local dmy = frame.args.dmydate or ""
	local d, m, y = string.match(dmy, "(%d+) (%w+) (%d+)")
	return "Year = " .. y .. "<br>Day = " .. d .. "<br>Month = " .. m
end

-- Task 6

function p.langs(frame)
	local langslist = mw.language.fetchLanguageNames()
	local out = ""
	local count = 0
	for k, v in pairs(langslist) do
		out = out .. k .. " - " .. v .. "<br>"
		count = count + 1
	end
	return out .. "<br>= " .. count .. " languages"
end

function p.fallbacklangs(frame)
	local code = frame.args.langcode
	local langs = mw.language.getFallbacksFor( code )
	local out=""
	for i = 1,#langs do
		out = out .. langs[i] .. " "
	end
	out = out .. "<br>"
	return out
end

p.pgtitle = function( frame )
 	local title = frame.args.title
 	local ttlobj = mw.title.new( title )
 	local txt = ttlobj.text
 	return txt
end

p.pginfo = function( frame )
 	local tt = frame.args.title or ""
	local ttlobj = mw.title.new( tt )
	if ttlobj == nil
	then
		return "Invalid or missing parameter."
	else
		local out = tt
		if ttlobj.exists
		then
			out = out .. " exists and is "
		else
			out = out .. " does not exist and is not a redirect"
			return out
		end
		if ttlobj.isRedirect
		then
			out = out .. "a redirect"
		else
			out = out .. "not a redirect"
		end
		return out
	end
end

-- Task 7
-- Get date

function p.getdate(frame)
	local qid = frame.args.qid
	local prop = frame.args.prop
	local valtbl = mw.wikibase.getBestStatements(qid, prop)
	local timestamp = valtbl[1].mainsnak.datavalue.value.time
	local date = string.match(timestamp, "(%d+.%d+.%d+)")
	return date
end

function p.getfulldate(frame)
	local monthname = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" }
	local qid = frame.args.qid
	local prop = frame.args.prop
	local valtbl = mw.wikibase.getBestStatements(qid, prop)
	local timestamp = valtbl[1].mainsnak.datavalue.value.time
	local year, month, day = string.match(timestamp, "(%d+)-(%d+)-(%d+)")
	local fulldate = day .. " " .. monthname[tonumber(month)] .. " " .. year
	return fulldate
end

function p.getitem(frame)
	local qid = frame.args.qid
	local prop = frame.args.prop
	local valtbl = mw.wikibase.getBestStatements(qid, prop)
	local id = valtbl[1].mainsnak.datavalue.value.id
	local label = mw.wikibase.getLabel(id)
	return label
end
return p