import chalk from 'chalk';
import child_process from 'child_process';
import * as fs from 'fs';
import { join as pathJoin, relative as pathRelative } from 'path';
import type { BuildContext } from '../core';
import { getThisCodebaseRootDirPath } from '../tools/getThisCodebaseRootDirPath';
import { command as updateKcGenCommand } from '../update-kc-gen';
import { updateAccountThemeImplementationInConfig } from './updateAccountThemeImplementationInConfig';

export async function command(params: { buildContext: BuildContext }) {
  const { buildContext } = params;

  const accountThemeSrcDirPath = pathJoin(buildContext.themeSrcDirPath, 'account');

  if (fs.existsSync(accountThemeSrcDirPath) && fs.readdirSync(accountThemeSrcDirPath).length > 0) {
    console.warn(
      chalk.red(
        `There is already a ${pathRelative(
          process.cwd(),
          accountThemeSrcDirPath,
        )} directory in your project. Aborting.`,
      ),
    );

    process.exit(-1);
  }

  exit_if_uncommitted_changes: {
    let hasUncommittedChanges: boolean | undefined;

    try {
      hasUncommittedChanges =
        child_process
          .execSync(`git status --porcelain`, {
            cwd: buildContext.projectDirPath,
          })
          .toString()
          .trim() !== '';
    } catch {
      // Probably not a git repository
      break exit_if_uncommitted_changes;
    }

    if (!hasUncommittedChanges) {
      break exit_if_uncommitted_changes;
    }
    console.warn(
      [
        chalk.red('Please commit or stash your changes before running this command.\n'),
        "This command will modify your project's files so it's better to have a clean working directory",
        'so that you can easily see what has been changed and revert if needed.',
      ].join(' '),
    );

    process.exit(-1);
  }

  const accountThemeType = 'Multi-Page';

  fs.cpSync(
    pathJoin(getThisCodebaseRootDirPath(), 'src', 'bin', 'initialize-account-theme', 'boilerplate'),
    accountThemeSrcDirPath,
    { recursive: true },
  );

  updateAccountThemeImplementationInConfig({ buildContext, accountThemeType });

  updateKcGenCommand({
    buildContext: {
      ...buildContext,
      implementedThemeTypes: {
        ...buildContext.implementedThemeTypes,
        account: {
          isImplemented: true,
          type: accountThemeType,
          hasEarlyColorSchemeScript: false,
        },
      },
    },
  });

  console.log(
    [
      chalk.green(`The ${accountThemeType} account theme has been initialized.`),
      `Directory created: ${chalk.bold(pathRelative(process.cwd(), accountThemeSrcDirPath))}`,
    ].join('\n'),
  );
}