local lapis = require("lapis")
local app = lapis.Application()

local config = require("lapis.config").get()

members = {{"fynn","https://fynngodau.de"},
					{"anton","https://anton.ehrmanntraut.de"},
					{"max","https://aaahhh.de"},
					{"theresa","https://treimer.dev"},
					{"never","https://nevereverever.de"}}
members[#members+1] = members[1]

math.randomseed(os.time())

app:get("/", function()
  return 'Welcome to the CUPS (Cool Unique People System) webring </br> <embed type="text/html" src="' .. config.host .. '/embed?from=cups" style="width:350px;">'
end)

app:get("/embed", function(self)
	local from = self.params.from
	if from == nil then
		return {"cups webring embed needs from defined (.../embed?from=me)"}
	end
	return string.format('<div style="display:flex; flex-direction:row; align-items:center;"><a href="%s/prev?from=%s" target="_parent"><img src="%s/static/arrow_left.svg" width=50 height=50/></a><a href="%s" target="_parent"><img src="%s/static/logo_cut.svg" width=200 height=100/></a><a href="%s/next?from=%s" target="_parent"><img src="%s/static/arrow_right.svg" width=50 height=50/></a></div>', config.host, from,  config.host, config.host, config.host, config.host, from, config.host), {layout = false, content_type="text/html"}
end)

app:get("/random", function(self)
	rand = math.random(1,#members-1)
	return {redirect_to=members[rand][2]}
end)

app:get("/next", function(self)
	local found
	for _, elem in ipairs(members) do
		local name = elem[1]
		local url = elem[2]
		if found == true then
			return {redirect_to=url}
		end
		if name == self.params.from then 
			found = true
		end
	end
	if "cups" == self.params.from then
		rand = math.random(1,#members-1)
		return {redirect_to=members[rand][2]}
	end
	return {redirect_to="/"}
end)


app:get("/prev", function(self)
	local found
	for i=#members, 1, -1 do
		local name = members[i][1]
		local url = members[i][2]
		if found == true then
			return {redirect_to=url}
		end
		if name == self.params.from then 
			found = true
		end
	end
	if "cups" == self.params.from then
		rand = math.random(1,#members-1)
		return {redirect_to=members[rand][2]}
	end
	return {redirect_to="/"}
end)

return app