#!/usr/bin/env node
import { exec } from "child-process-promise";
import { program } from "commander";

import deploy from "./deploy";
import promote from "./promote";

(async function main() {
  let { stdout: currentBranch } = await exec("git branch --show-current");
  currentBranch = currentBranch.trim();
  const currentEnv = sanitizeBranch(currentBranch);

  program
    .command("deploy")
    .option("-t, --terraform-dir <dir>", "terraform directory", "terraform/")
    .option("-a, --auto-approve", "auto-approve terraform changes", false)
    .option(
      "-d, --deploy-env <name>",
      "name of the environment you want to deploy. Defaults to the current git branch name.",
      currentEnv
    )
    .option(
      "-e, --env-file <path>",
      ".env file you want to load environment variables from"
    )
    .option("--pre-apply <script>", "Script to run before terraform apply")
    .option("--post-apply <script>", "Script to run after terraform apply")
    .action(args => deploy(args, currentEnv));

  program
    .command("promote")
    .option(
      "--target <branch>",
      "the name of the branch you want to promote to",
      currentBranch === "dev"
        ? "staging"
        : currentBranch === "staging"
        ? "master"
        : "dev"
    )
    .action(args => promote(args, currentBranch));

  program.parse(process.argv);
})();

function sanitizeBranch(branch: string) {
  return branch
    .replace("/", "_")
    .toLowerCase()
    .trim()
    .replace(/^master$/g, "prod");
}