import { exec } from "child_process";

export interface DockerStatus {
  available: boolean;
  version?: string;
  error?: string;
}

export function checkDocker(): Promise<DockerStatus> {
  return new Promise((resolve) => {
    exec("docker version --format '{{.Server.Version}}'", (err, stdout) => {
      if (err) {
        resolve({
          available: false,
          error: "Docker is not running or not installed.",
        });
        return;
      }
      resolve({
        available: true,
        version: stdout.trim().replace(/'/g, ""),
      });
    });
  });
}

export function dockerDownloadUrl(): string {
  switch (process.platform) {
    case "win32":
      return "https://desktop.docker.com/win/main/amd64/Docker%20Desktop%20Installer.exe";
    case "darwin":
      return process.arch === "arm64"
        ? "https://desktop.docker.com/mac/main/arm64/Docker.dmg"
        : "https://desktop.docker.com/mac/main/amd64/Docker.dmg";
    default:
      return "https://docs.docker.com/engine/install/";
  }
}