fetch-require.lua

-- Fetch n url in parallel, must be run in a coroutine (co parameter)
local fetch = function(co, ...)
    local requests = {...}
    for i = 1, #requests do
        local promise = js.global:fetch(requests[i])
        promise["then"](promise, function(_, res)
            local textPromise = res:text()
            textPromise["then"](textPromise, function(_, text)
                co(i, text)
            end)
        end)
    end

    local results = {}
    for i = 1, #requests do
        local requestId, response = coroutine.yield()
        results[requestId] = response
    end

    return table.unpack(results)
end

-- Take full paths for now
local require = function(...)
    local paths = table.pack(...)

    local co
    co = coroutine.wrap(function ()
        local modules = table.pack(fetch(co, table.unpack(paths)))

        for i = 1, #modules do
            local module = modules[i]

            modules[i] = load(module)
        end

        coroutine.yield(table.unpack(modules))
    end)

    return co()
end