Editing Module:Sandbox/Shreyansh Saboo

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

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

p.converttemp = function(frame)
		cels = tonumber(frame.args.celsius) or 0
		fahr = 	cels * 9/5 + 32
		msg =  cels .. " celsius is equal to " .. fahr .. " 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", "Joe", "Jimmy", "Jack"}
	local msg = ""
	
	for i = 1, #friends do
		msg = msg .. "Hello " .. friends[i] .. "<br>"
	end

	return msg
end

function p.sent(frame)
	local txt = frame.args.text or ""
	a = string.sub(txt,0,1)
	
	local out = string.upper(a) .. 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

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 langcode = frame .  args .  langcode
	local langslist = mw.language.getFallbacksFor( langcode )
	local out = ""
	local count = 0
		for k, v in pairs(langslist) do
		out = out .. k .. " - " .. v .. "<br>"
		count = count + 1
	end
	return langcode .. " fallbacks " .. count .. " language " .. "<br>= " .. 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 title = tostring(frame.args.title) or ""
	 local ttlobj = mw.title.new( title ) or title
	 if ttlobj.exists then
	   if ttlobj.isRedirect then
	     txt = title .. " exists and is a redirect"
	   else
	     txt = title .. " exists and is not a redirect"
	   end
	 else
	   txt = title .. " does not exist"
	 end
	 return txt
end

-- Get date

p.getdate = function(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
	year = string.sub(timestamp, 2, 5)
	month =string.sub(timestamp, 7, 8)
	date = string.sub(timestamp, 10, 11)
	return year .. "-" .. month .. "-" .. date
end	

p.getfulldate = function(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
	year = string.sub(timestamp, 2, 5)
	monthnum =string.sub(timestamp, 7, 8)
	local monthname = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" }
	month = tostring(monthname[tonumber(monthnum)])
	date = string.sub(timestamp, 10, 11)
	return date .. " " .. month .. " " .. year
end	

p.getitem = function(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.id
	local timestamp1 = mw.wikibase.getLabel(timestamp)
	return timestamp1
end	

return p