import * as yargs from 'yargs';
import { CommandModule } from 'yargs';
import { MessageDiffOptions } from './message-diff-options';
import { MessageDiff } from './msg-diff';

export const msgDiff: CommandModule<unknown, MessageDiffOptions> = {
  command: 'msg-diff',
  describe: 'Compares AsyncAPI documents with git for breaking changes.',
  builder: (yargs) =>
    yargs
      .option('inputDir', {
        alias: 'i',
        describe: 'Path to input directory - AsyncAPI document root.',
        type: 'string',
        demandOption: true,
      })
      .option('filePattern', {
        alias: 'p',
        describe: 'Regular expression used to include suitable input files.',
        type: 'string',
        default: '^.*(-asyncapi).(json|yaml|yml)$',
      })
      .option('excludePattern', {
        alias: 'e',
        describe:
          'Exclude input files matching a regular expression. Exclusion takes precedence over inclusion.',
        type: 'string',
        default: undefined,
      })
      .option('branch', {
        alias: 'b',
        description: 'Git branch or commit identifier to compare to.',
        type: 'string',
        default: 'origin/master',
      })
      .option('verbose', {
        alias: 'v',
        description: 'Verbose output including non-breaking changes.',
        type: 'boolean',
        default: false,
      }),
  handler: async (argv) => {
    const diff = new MessageDiff(argv);
    await diff.run();
    console.log('done.');
  },
};

// Dev helper. Script can be run directly with command:
//   ts-node libs/cli/src/commands/msg-diff/index.ts msg-diff -i libs/messages/schemas
if (require.main === module) {
  yargs.command(msgDiff).demandCommand().argv;
}