@npio/internals/src/server/filesystem.ts

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import { Driver, createLocal, createS3 } from "@npio/filesystem";
import { createGlobal } from "./util";
import { useServerConfig } from "./config";

const create = () => {
  const config = useServerConfig();
  const drivers = {} as { local: Driver; s3?: Driver };

  if (config.filesystem.drivers.local) {
    drivers.local = createLocal(config.filesystem.drivers.local);
  }

  if (config.filesystem.drivers.s3) {
    drivers.s3 = createS3(config.filesystem.drivers.s3);
  }

  return { default: config.filesystem.defaultDriver, drivers };
};

const initFilesystem = () => setFilesystem(create);
export default initFilesystem;

export const [useFilesystem, setFilesystem] =
  createGlobal<ReturnType<typeof create>>("npFilesystem");

export const useFilesystemDriver = (driver?: string | null) => {
  const fs = useFilesystem();
  const d = (driver as keyof typeof fs.drivers) ?? "local";
  if (fs.drivers[d]) return fs.drivers[d]!;
  const alt = d === "local" ? "s3" : "local";
  if (import.meta.env.DEV) {
    console.log(
      `Requested filesystem driver "${driver}" not found in config, using "${alt}"!`,
    );
  }

  return fs.drivers[alt]!;
};