import { createCerebro } from "@visulima/cerebro";

// Create CLI instance
const cli = createCerebro("greet-cli", {
  packageName: "greet-cli",
  packageVersion: "1.0.0",
});

// Add a command
cli.addCommand({
  name: "hello",
  description: "Greet someone",
  execute: ({ logger }) => {
    logger.log("Hello, World!");
  },
});

// Run the CLI
await cli.run();

$ node cli.js hello
Hello, World!

cli.addCommand({
  name: "greet",
  description: "Greet someone by name",
  argument: {
    name: "name",
    description: "Person to greet",
    type: String,
  },
  execute: ({ argument, logger }) => {
    const name = argument[0];
    logger.log(`Hello, ${name}!`);
  },
});

$ node cli.js greet Alice
Hello, Alice!

cli.addCommand({
  name: "greet",
  description: "Greet someone",
  argument: {
    name: "name",
    description: "Person to greet",
    type: String,
  },
  options: [
    {
      name: "loud",
      alias: "l",
      description: "Make it loud",
      type: Boolean,
    },
    {
      name: "times",
      alias: "t",
      description: "Number of times to greet",
      type: Number,
      defaultValue: 1,
    },
  ],
  execute: ({ argument, options, logger }) => {
    const name = argument[0];
    const message = `Hello, ${name}!`;
    const output = options.loud ? message.toUpperCase() : message;

    for (let i = 0; i < options.times; i++) {
      logger.log(output);
    }
  },
});

$ node cli.js greet Alice --loud --times 3
HELLO, ALICE!
HELLO, ALICE!
HELLO, ALICE!

$ node cli.js --help
greet-cli v1.0.0

Usage: greet-cli <command> [options]

Commands:
  greet <name>  Greet someone

Options:
  --help     Show help
  --version  Show version

cli.addCommand({
  name: "env",
  description: "Show environment info",
  env: {
    API_KEY: {
      description: "API key for authentication",
      required: true,
    },
  },
  execute: ({ env, logger }) => {
    logger.log(`API Key: ${env.API_KEY}`);
  },
});

$ API_KEY=secret123 node cli.js env
API Key: secret123

cli.addCommand({
  name: "db",
  description: "Database commands",
  commands: [
    {
      name: "migrate",
      description: "Run migrations",
      execute: ({ logger }) => {
        logger.log("Running migrations...");
      },
    },
    {
      name: "seed",
      description: "Seed database",
      execute: ({ logger }) => {
        logger.log("Seeding database...");
      },
    },
  ],
});

$ node cli.js db migrate
Running migrations...

$ node cli.js db seed
Seeding database...