import { Cliffy, Path, Colors } from "./deps.ts";

import { checkPermOrExit } from "./helper/permission.ts";

await checkPermOrExit("env", "Requires --allow-env");
await checkPermOrExit("read", "Requires --allow-read");
await checkPermOrExit("write", "Requires --allow-write");

import { init } from "./global.ts";
import { version } from "./version.ts";
import setupCMD from "./commands/setup.ts";
import initCMD from "./commands/init.ts";
import bumpCMD from "./commands/bump.ts";
import publishCMD from "./commands/publish.ts";
import deprecateCMD from "./commands/deprecate.ts";
import upgradeCMD from "./commands/upgrade.ts";
import runCMD from "./commands/run.ts";

const HOME_FOLDER = Deno.env.get("HOME") || Deno.env.get("USERPROFILE") || "";

type CommandHandler = (...opts: any[]) => void | Promise<void>;

let command: CommandHandler | undefined = undefined;
let opts: any[] = [];
// const debounce = (fnc: any) => (...args: any[]) => {
//    new Promise((y) => setTimeout(y, 0)).then(() => fnc(...args));
// }; //Put function call into queue

const commandWrapper = (cmd: CommandHandler) => {
   return (...params: any[]) => {
      command = cmd;
      opts = params;
   };
};
const flags = await new Cliffy.Command()
   .name("denreg")
   .version(version)
   .description("CLI for the Open Source DenReg package registry")
   .option("-i, --interactive [interactive:boolean]", "Interactive mode", {
      default: true,
      global: true,
   })
   .option("-c, --config <config>", "Config file", {
      default: Path.resolve(HOME_FOLDER, ".denreg"),
      global: true,
   })
   .option("-v, --verbose  [verbose:boolean]", "Verbose", {
      default: false,
      global: true,
   })
   .command(
      "setup",
      new Cliffy.Command()
         .description("Configure cli")
         .action(commandWrapper(setupCMD))
   )
   .command(
      "publish",
      new Cliffy.Command()
         .description("Upload package")
         .action(commandWrapper(publishCMD))
         .option("-d, --dry [dry:boolean]", "Dry run", {
            default: false,
         })
   )
   .command(
      "init",
      new Cliffy.Command()
         .description("Create meta.json")
         .action(commandWrapper(initCMD))
   )
   .command(
      "bump",
      new Cliffy.Command()
         .complete("major|minor|patch", () => ["major", "minor", "patch"])
         .arguments("<major|minor|patch>")
         .description("Change package version")
         .action(commandWrapper(bumpCMD))
   )
   .command(
      "deprecate",
      new Cliffy.Command()
         .description("Deprecate package")
         .action(commandWrapper(deprecateCMD))
   )
   .command(
      "upgrade",
      new Cliffy.Command()
         .description("Upgrade to latest version of denreg cli")
         .action(commandWrapper(upgradeCMD))
   )
   .command(
      "run",
      new Cliffy.Command()
         .arguments("<name>")
         // .complete("name", ()=>) //TODO: add autocomplete?
         .description("Run script from meta.json")
         .action(commandWrapper(runCMD))
   )
   .command("completions", new Cliffy.CompletionsCommand())
   .command("help", new Cliffy.HelpCommand().global())
   .parse(Deno.args);

await init(flags.options);

if (command) {
   try {
      await Promise.resolve((command as CommandHandler)(...opts));
   } catch (err) {
      console.log(Colors.bold(Colors.red("An error occured:")), err.message);
   }
} else {
   flags.cmd.showHelp();
}