// CLI dispatcher — recursively walks CLICommand tree and wires up yargs
import yargs from "yargs";
import { hideBin } from "yargs/helpers";
export class CLI {
    prog;
    description;
    constructor(opts) {
        this.prog = opts.prog;
        this.description = opts.description;
    }
    registerCommand(y, CommandClass) {
        const cmd = new CommandClass();
        const subcommands = CommandClass._subcommands;
        if (subcommands?.length) {
            // Branch command with subcommands
            y.command(cmd.name, cmd.help, (sub) => {
                for (const Sub of subcommands) {
                    this.registerCommand(sub, Sub);
                }
                return sub.demandCommand(1, `Please specify a ${cmd.name} subcommand`);
            }, () => { });
        }
        else {
            // Leaf command
            y.command(cmd.name, cmd.help, (sub) => cmd.addArguments(sub), async (args) => {
                const code = await cmd.execute(args);
                process.exit(code);
            });
        }
    }
    bootstrap(commands) {
        const y = yargs(hideBin(process.argv))
            .scriptName(this.prog)
            .usage(`${this.description}\n\n$0 <command> [options]`)
            .option("verbose", {
            alias: "v",
            type: "boolean",
            description: "Enable verbose output",
            default: false,
        })
            .demandCommand(1, "Please specify a command")
            .strict()
            .help();
        for (const Cmd of commands) {
            this.registerCommand(y, Cmd);
        }
        y.parse();
    }
}