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// This script deploys website/dist to a AWS S3 Bucket.
// This script expects an environment to have non-empty variables
// AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, and AWS_DEFAULT_REGION.

import * as commander from "commander";

interface DeployOptions {
  s3BucketName: string;
  cfDistributionID: string;
}

function deploy({ s3BucketName, cfDistributionID }: DeployOptions) {
  const sync = Bun.spawnSync(
    [
      "aws",
      "s3",
      "sync",
      "--delete",
      new URL("../../website/dist", import.meta.url).pathname,
      `s3://${s3BucketName}`,
    ],
    {
      stdio: ["inherit", "inherit", "inherit"],
    },
  );

  if (!sync.success) {
    throw new Error("Failed to sync local contents to S3 bucket");
  }

  const invalidation = Bun.spawnSync(
    [
      "aws",
      "cloudfront",
      "create-invalidation",
      "--distribution-id",
      cfDistributionID,
      "--paths",
      "/*",
    ],
    {
      stdio: ["inherit", "inherit", "inherit"],
    },
  );

  if (!invalidation.success) {
    throw new Error("Failed to invalidate CloudFront cache");
  }
}

if (import.meta.main) {
  interface CLIOptions {
    s3Bucket?: string;
    cfDistId?: string;
  }

  const program = commander.program
    .option("--s3-bucket", "S3 Bucket name to deploy ($S3_BUCKET_NAME)")
    .option(
      "--cf-dist-id",
      "CloudFront distribution ID of the website CDN ($CF_DIST_ID)",
    )
    .action(
      ({
        s3Bucket = Bun.env.S3_BUCKET,
        cfDistId = Bun.env.CF_DIST_ID,
      }: CLIOptions) => {
        if (!s3Bucket) {
          throw new Error("S3 Bucket name is required.");
        }

        if (!cfDistId) {
          throw new Error("CloudFront distribution ID is required.");
        }

        deploy({
          s3BucketName: s3Bucket,
          cfDistributionID: cfDistId,
        });
      },
    );

  await program.parseAsync(Bun.argv);
}