import { Colors, Path, FS, Compress, Base64 } from "../deps.ts";
import { getMeta, IMeta, log, getConfig } from "../global.ts";

export default async function publish() {
   const meta: IMeta = await getMeta();

   if (!meta.name) throw new Error("name is not set in meta.json");
   if (!meta.version) throw new Error("version is not set in meta.json");
   if (!meta.files || !Array.isArray(meta.files) || meta.files.length <= 0)
      throw new Error("files is not set or empty in meta.json");

   const tmpDir = await Deno.makeTempDir();
   const packedFile = await Deno.makeTempFile();

   try {
      const walker = FS.walk(".", {
         includeDirs: false,
         includeFiles: true,
         match: meta.files.map((file) => Path.globToRegExp(file)),
      });

      log("Copying files to package to", tmpDir);

      const copy = async (path: string) => {
         const dest = Path.join(tmpDir, path);
         await FS.ensureDir(Path.dirname(dest));
         await FS.copy(path, dest);
      };

      await copy("meta.json");

      for await (const file of walker) {
         await copy(file.path);
      }

      log("Compressing file");

      await Compress.Tar.compress(tmpDir, packedFile, {
         excludeSrc: true,
      });

      const url = new URL(getConfig("registry"));
      url.pathname = "/api/package/" + meta.name;

      log("Uploading new package version");

      await fetch(url, {
         method: "POST",
         body: await Deno.readFile(packedFile),
         headers: {
            Authorization:
               "Basic " +
               Base64.encode(
                  getConfig("username") + ":" + getConfig("password")
               ),
         },
      })
         .then((res) =>
            res.status === 200
               ? res.json()
               : Promise.reject(new Error("res.statusText"))
         )
         .then((res) => {
            if (!res.success) {
               throw new Error(res.message);
            } else {
               console.log(Colors.green("Upload successfull"));
            }
         })
         .catch((err) => {
            console.log(Colors.red("Error: " + err.message));
         });
   } finally {
      await Deno.remove(tmpDir, { recursive: true });
      await Deno.remove(packedFile);
   }
}