Extra Facility Funcs - v2

facility = {
    facility_id = 0,
    facility_name = "",
    facility_password = "",
    facility_registered = false
}

url = "http://localhost:3000/"
allChars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"

function facility:new(name)
    setmetatable({}, facility)
    self.facility_id = os.getComputerID()
    self.facility_name = name
    self.facility_password = ""
    self.facility_registered = false
    return self
end

function facility:register(name)
    if self.facility_registered == true then
        print("I'm already registered")
        return false
    else
        -- register facility on server
        -- generate a random password
        local new_password = ""
        for i = 1, 16 do
            r = math.random(#allChars)
            new_password = new_password .. string.sub(allChars, r, r)
        end

        self.facility_password = new_password

        -- set facility if not nil or not set
        facility_data = {facility_name = name}
        local facility_exists =
            http.post(
            url .. "facility_exists",
            textutils.serializeJSON(facility_data),
            {
                ["Content-Type"] = "application/json",
                ["content-encoding"] = "identity"
            },
            true
        )
        if facility_exists ~= nil then
            if facility_exists.getResponseCode() == 200 then
                if string.find(facility_exists.readAll(), "false") == nil then
                    return false
                end
            else
                print("No 200 response code")
                return false
            end
        else
            print("Server error")
            return false
        end

        local server_data = {
            facility_id = self.facility_id,
            facility_name = self.facility_name,
            facility_password = self.facility_password
        }
        print(self.this_id)

        local register =
            http.post(
            url .. "register_facility",
            textutils.serializeJSON(server_data),
            {
                ["Content-Type"] = "application/json",
                ["content-encoding"] = "identity"
            },
            true
        )

        if register ~= nil then
            if register.getResponseCode() == 200 then
                self.facility_registered = true
                self.facility_id = os.getComputerID()
                -- Save data
                local h = fs.open("api/facility", "w")
                h.writeLine(self.facility_id)
                h.writeLine(self.facility_name)
                h.writeLine(self.facility_password)
                h.writeLine(self.facility_registered)
                h.close()
                return true
            else
                print("E: post 'register_facility' response code was not 200")
                return false
            end
        else
            print("register returned nil")
            return false
        end
    end
end

function facility:is_registered()
    if fs.exists("api/facility") then
        local h = fs.open("api/facility", "r")
        some_facility_id = tonumber(h.readLine())
        some_facility_name = h.readLine()
        some_facility_password = h.readLine()
        some_facility_registered = h.readLine() == true
        h.close()

        self.facility_id = some_facility_id
        self.facility_name = some_facility_name
        self.facility_password = some_facility_password
        self.facility_registered = some_facility_registered

        local server_data = {
            this_id = self.facility_id,
            this_name = self.facility_name,
            password = self.facility_password
        }

        local found =
            http.post(
            url .. self.type .. "/find_facility",
            textutils.serializeJSON(server_data),
            {
                ["Content-Type"] = "application/json",
                ["content-encoding"] = "identity"
            },
            true
        )

        if found ~= nil then
            if found.getResponseCode() == 200 then
                if found.readAll() == true then
                    return true
                else
                    return false
                end
            else
                print("E: post 'find_facility' response code was not 200")
                return false
            end
        else
            print("found returned nil")
            return false
        end
    else
        return false
    end
end

function facility:join(name)
    facility_data = {facility_name = name}

    local facility_exists =
        http.post(
        url .. "facility_exists",
        textutils.serializeJSON(facility_data),
        {
            ["Content-Type"] = "application/json",
            ["content-encoding"] = "identity"
        },
        true
    )
    if facility_exists ~= nil then
        if facility_exists.getResponseCode() == 200 then
            if string.find(facility_exists.readAll(), "false") == nil then
                setmetatable({}, facility)
                self.facility_id = os.getComputerID()
                self.facility_name = name
                self.facility_password = ""
                self.facility_registered = true
                return self
            else
                return false
            end
        else
            print("No 200 response code")
            return false
        end
    else
        print("Server error")
        return false
    end
end