import { baseConfig } from './base.js';

/**
 * NestJS config.
 *
 * The two rules that matter architecturally:
 *  1. Only the persistence layer may import PrismaService / Redis directly.
 *  2. A module must not deep-import another module's internals — cross-module
 *     access goes through the other module's public surface (`<module>/public`).
 *
 * @type {import("eslint").Linter.Config[]}
 */
export const nestConfig = [
  ...baseConfig,
  {
    files: ['**/*.ts'],
    rules: {
      /**
       * OFF, and it must stay off.
       *
       * Nest resolves constructor dependencies from `emitDecoratorMetadata`,
       * which requires the parameter's type to survive as a *value* import.
       * This rule cannot tell an injected class from a pure type, so its
       * autofix silently rewrites `import { PrismaService }` into
       * `import { type PrismaService }` — which compiles cleanly and then
       * fails at runtime with "Nest can't resolve dependencies".
       *
       * The same reasoning is why `verbatimModuleSyntax` is disabled in
       * @sport/config/typescript/nestjs.json.
       */
      '@typescript-eslint/consistent-type-imports': 'off',

      // Nest relies on parameter decorators and class-based DI.
      '@typescript-eslint/no-extraneous-class': 'off',
      '@typescript-eslint/no-empty-object-type': 'off',
      'no-console': 'error',

      'no-restricted-imports': [
        'error',
        {
          patterns: [
            {
              /**
               * Two things may cross a module boundary and nothing else:
               *
               *  - `<name>.module`  — the NestJS module class, so it can be
               *    listed in another module's `imports`. Wiring the DI graph is
               *    exactly what a modular monolith is supposed to allow.
               *  - `<name>/public`  — the curated public surface.
               *
               * Everything else — repositories, mappers, DTOs, internal
               * services — stays private.
               */
              group: ['@/modules/*/*', '!@/modules/*/public', '!@/modules/*/*.module'],
              message:
                'Cross-module deep imports are forbidden. Import `@/modules/<name>/public` for behaviour, or `@/modules/<name>/<name>.module` to wire it into your module.',
            },
          ],
        },
      ],
    },
  },
  {
    // Decorated DTO / entity classes legitimately have empty bodies.
    files: ['**/*.dto.ts', '**/*.entity.ts'],
    rules: { '@typescript-eslint/no-extraneous-class': 'off' },
  },
];

export default nestConfig;