import { ensurePackages, interopDefault, type TypedFlatConfigItem } from '@antfu/eslint-config';

// import { pluginUnicorn } from '../plugins.ts';

export async function unicorn(options?: TypedFlatConfigItem['rules']): Promise<TypedFlatConfigItem[]> {
  await ensurePackages(['eslint-plugin-unicorn']);
  const pluginUnicorn = await interopDefault(import('eslint-plugin-unicorn'));

  return [{
    name: 'xaxa/unicorn/rules',
    plugins: { unicorn: pluginUnicorn },
    rules: {
      // It is pretty common to name it `err`, and there is almost no reason to be any other.
      // https://github.com/sindresorhus/eslint-plugin-unicorn/blob/master/docs/rules/catch-error-name.md
      'unicorn/catch-error-name': ['error', { name: 'err' }],
      'unicorn/consistent-destructuring ': 'off',
      // Enforce proper Error subclassing. (fixable)
      // https://github.com/sindresorhus/eslint-plugin-unicorn/blob/master/docs/rules/custom-error-definition.md
      'unicorn/custom-error-definition': 'error',
      'unicorn/expiring-todo-comments': 'off',
      // Pretty useful rule, but it depends.
      // https://github.com/sindresorhus/eslint-plugin-unicorn/blob/master/docs/rules/filename-case.md
      'unicorn/filename-case': 'off',

      // Enforce importing index files with `.` instead of `./index`. (fixable)
      // But we should be explicit. We know it is working without that,
      // but at least it is good for newcomers.
      // https://github.com/sindresorhus/eslint-plugin-unicorn/blob/master/docs/rules/import-index.md
      'unicorn/import-index': 'off',

      'unicorn/no-array-reduce': 'off',
      'unicorn/no-await-expression-member': 'off',
      // Please don't annoy me.
      'unicorn/no-null': 'off',

      // These below are intentional & explicit overrides of XO and Unicorn

      'unicorn/no-process-exit': 'off',

      // 'prefer-destructuring': ['warn', { object: true, array: false }],
      'unicorn/no-unreadable-array-destructuring': 'error', // default in recommended
      // Disallow unsafe regular expressions.
      // Don't allow potential catastrophic crashes, slow behaving and downtimes.
      // You still can disable that and do whatever you want,
      // but that will be explicit and visible.
      // https://github.com/sindresorhus/eslint-plugin-unicorn/blob/master/docs/rules/no-unsafe-regex.md
      // 'unicorn/no-unsafe-regex': 'error',

      'unicorn/no-unused-properties': 'error',

      'unicorn/no-useless-spread': 'off', // useless rule

      // Doesn't work well in node-land. We have `.on/.off` emitters in Nodejs.
      'unicorn/prefer-add-event-listener': 'off',

      'unicorn/prefer-spread': 'off',

      'unicorn/prefer-switch': 'off', // fvck off
      // It is too much annoyance for me. It's a good thing, but generally
      // after so many years we already name things properly,
      // so please don't mess with me and don't correct me.
      'unicorn/prevent-abbreviations': 'off',
    },
  }, {
    name: 'xaxa/unicorn/user-overrides',
    rules: {
      ...(options || {}),
    },
  }];
}