import { Command } from "@cliffy/command";
import { basename } from "@std/path";
import { Hsh } from "../hsh.ts";

function register(cmd: Command, hsh: Hsh) {
  cmd
    .command("import", "import an existing file")
    .arguments("<...paths:file>")
    .option("-t, --target <target:string>", "target path")
    .action(({ target }, ...paths) => {
      if (paths.length === 0) return;
      const t = target != null
        ? hsh.parse(target)
        : hsh.getNotebook().newPath();
      if (t.entry) {
        throw new Error("target must be a folder, not a document");
      }
      for (const p of paths) {
        Deno.copyFileSync(p, t.withEntry(basename(p)).getAbsolutePath());
      }
      hsh.emitNotebookChanged(
        t.notebook,
        `[hsh]: imported ${
          paths.length === 1 ? paths[0] : `${paths.length} items`
        }`,
      );
    });
}

export default { register };