import { CliffyPrompt, Path, FS } from "../deps.ts";
import {
   getMeta,
   setMeta,
   IMeta,
   getConfig,
   isInteractive,
} from "../global.ts";

export default async function init() {
   let existing = {};
   try {
      existing = await getMeta();
   } catch (err) { }
   let meta: IMeta = {
      name: Path.basename(Deno.cwd()).toLowerCase().replace(/\s+/g, "-"),
      version: "0.0.1",
      description: "",
      author: getConfig("author"),
      contributors: [],
      files: ["**/*.ts", "**/*.js", "README.md"],
      ...existing,
   };

   if (isInteractive()) {
      meta.name = await CliffyPrompt.Input.prompt({
         message: "What's the name of your package?",
         default: meta.name,
      });
      meta.description = await CliffyPrompt.Input.prompt({
         message: "What's the description of your package?",
         default: meta.description,
      });
      meta.author = await CliffyPrompt.Input.prompt({
         message: "Who's the author of your package?",
         default: meta.author,
      });

      if (!(await FS.exists("README.md"))) {
         const res = await CliffyPrompt.Confirm.prompt({
            message: "Autogenerate README?",
            default: true,
         });
         if (res) {
            await Deno.writeFile(
               "README.md",
               new TextEncoder().encode(meta.description || "")
            );
         }
      }
   }

   await setMeta(meta);
}