#!/usr/bin/env bun
import { Command } from 'commander';
import { runAddPage, runBuild, runPublish, runRebuild } from './operations.js';

const program = new Command();

program.name('webstir-frontend').description('Webstir frontend build orchestrator');

program
  .command('build')
  .description('Build frontend assets for development workflows')
  .requiredOption('-w, --workspace <path>', 'Absolute path to the workspace root')
  .option('-c, --changed-file <path>', 'Optional path filter for incremental builds')
  .action(async (cmd) => {
    try {
      await runBuild({
        workspaceRoot: cmd.workspace,
        changedFile: cmd.changedFile ?? undefined,
      });
    } catch (error) {
      handleError(error);
    }
  });

program
  .command('publish')
  .description('Build production assets into the dist directory')
  .requiredOption('-w, --workspace <path>', 'Absolute path to the workspace root')
  .option('-m, --mode <mode>', 'Publish mode: bundle or ssg', 'bundle')
  .action(async (cmd) => {
    try {
      await runPublish({
        workspaceRoot: cmd.workspace,
        publishMode: cmd.mode === 'ssg' ? 'ssg' : 'bundle',
      });
    } catch (error) {
      handleError(error);
    }
  });

program
  .command('rebuild')
  .description('Rebuild frontend assets in response to file changes')
  .requiredOption('-w, --workspace <path>', 'Absolute path to the workspace root')
  .requiredOption('-c, --changed-file <path>', 'Path to the changed file triggering the rebuild')
  .action(async (cmd) => {
    try {
      await runRebuild({
        workspaceRoot: cmd.workspace,
        changedFile: cmd.changedFile ?? undefined,
      });
    } catch (error) {
      handleError(error);
    }
  });

program
  .command('add-page <name>')
  .description('Scaffold a new frontend page (HTML/CSS/TS)')
  .requiredOption('-w, --workspace <path>', 'Absolute path to the workspace root')
  .option('-m, --mode <mode>', 'Page mode: standard or ssg (defaults to ssg when webstir.mode=ssg)')
  .action(async (name, cmd) => {
    try {
      const rawMode = typeof cmd.mode === 'string' ? cmd.mode.toLowerCase() : undefined;
      await runAddPage({
        workspaceRoot: cmd.workspace,
        pageName: name,
        ssg: rawMode === 'ssg' ? true : rawMode === 'standard' ? false : undefined,
      });
    } catch (error) {
      handleError(error);
    }
  });

program.parseAsync(process.argv).catch(handleError);

function handleError(error: unknown): void {
  if (error instanceof Error) {
    console.error(error.message);
  } else {
    console.error('Unknown error', error);
  }
  process.exitCode = 1;
}