-- Sumitkhan 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  = fahr 
	if cels >= 9 then string = ' It is warm. ' else string = ' It is cold. ' end
	msg = cels..' degrees celsius is '..fahr..' degrees Fahrenheit.'..string
	return msg
end

-- Task 4
function p.timestable(frame)
	local numb = tonumber( frame.args.numb ) or 2
	local out = " Times table<br>"
	local times = numb
	for i = 1, 12 do
		out = out ..( i .. ' times ' .. numb .. ' equals ' .. i * numb .. "<br>")
	end
	return times , out
end
function p.people(frame)
	local friends = {"Agnetha", "Betty", "Carlos", "Davinder", "Eloise" , "Sumit" , "Shreyas" , "Martin"}
	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 ""
	local out = string.sub(txt, 1, 1)
	local stri = string.upper( out )
	local strf = string.sub(txt, 2)
	return stri .. strf
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 = mw.language.getFallbacksFor( langcode )
	end
return p