/**
 * Root ESLint flat config for Lilith Platform workspace
 * Applies shared configs to all features based on file patterns
 *
 * Used by:
 * - pnpm lint:imports (auto-fix import aliases)
 * - pnpm lint:imports:check (pre-commit validation)
 *
 * NOTE: This config only lints feature code. Individual features have their
 * own eslint.config.js files that extend from @lilith/configs.
 *
 * ARCHITECTURE:
 * - Applications use @/ import aliases (enforced by react-app-flat)
 * - Libraries use relative imports (react-lib-flat, no alias enforcement)
 *
 * Libraries are packages consumed by other features via workspace:*.
 * Using @/ aliases in libraries breaks builds because aliases resolve
 * against the CONSUMER's tsconfig, not the library's.
 */
import tseslint from 'typescript-eslint';
import importPlugin from 'eslint-plugin-import';
import { createNestJSConfig } from '@lilith/configs/eslint/nestjs-flat';
import { createReactAppConfig } from '@lilith/configs/eslint/react-app-flat';
import { createReactLibConfig } from '@lilith/configs/eslint/react-lib-flat';

export default tseslint.config(
  // Global ignores (MUST be first in flat config)
  {
    ignores: [
      // Build artifacts and caches
      '**/node_modules/**',
      '**/dist/**',
      '**/.turbo/**',

      // Workspace packages (have their own configs at ~/Code/@packages/)
      '@packages/**',

      // Generated files
      '**/*.d.ts',

      // Test files
      '**/*.test.ts',
      '**/*.test.tsx',
      '**/*.spec.ts',
      '**/*.spec.tsx',
      '**/__tests__/**',

      // Config files
      '**/*.config.js',
      '**/*.config.ts',
    ],
  },

  // Wrapper Package Protocol - Single Instance Enforcement
  // Ensures consistent library versions and prevents context/instance issues
  {
    files: ['**/*.{ts,tsx}'],
    rules: {
      'no-restricted-imports': [
        'error',
        {
          paths: [
            // styled-components → @lilith/ui-styled-components
            {
              name: 'styled-components',
              message:
                'Import from \'@lilith/ui-styled-components\' instead to ensure single styled-components instance. Multiple instances break ThemeProvider context propagation.',
            },
            // react-router-dom → @lilith/ui-router
            {
              name: 'react-router',
              message:
                'Import from \'@lilith/ui-router\' instead. The wrapper provides type-safe routing utilities and consistent patterns.',
            },
            {
              name: 'react-router-dom',
              message:
                'Import from \'@lilith/ui-router\' instead. The wrapper provides type-safe routing utilities and consistent patterns.',
            },
            // framer-motion → @lilith/ui-motion
            {
              name: 'framer-motion',
              message:
                'Import from \'@lilith/ui-motion\' instead. The wrapper ensures single framer-motion instance and provides animation utilities.',
            },
            // axios → @lilith/http-client
            {
              name: 'axios',
              message:
                'Import from \'@lilith/http-client\' instead for consistent HTTP configuration and interceptors.',
            },
            // socket.io-client → @lilith/websocket-client
            {
              name: 'socket.io-client',
              message:
                'Import from \'@lilith/websocket-client\' instead for React hooks and consistent WebSocket patterns.',
            },
          ],
          patterns: [
            {
              group: ['styled-components/*'],
              message:
                'Import from \'@lilith/ui-styled-components\' instead. Direct styled-components imports are forbidden.',
            },
            {
              group: ['framer-motion/*'],
              message:
                'Import from \'@lilith/ui-motion\' instead. Direct framer-motion imports are forbidden.',
            },
          ],
        },
      ],
    },
  },

  // Wrapper Package Protocol for @packages (override global ignores)
  // @packages are ignored globally to avoid other lint rules, but wrapper package
  // enforcement is critical to prevent context/instance issues
  {
    files: ['@packages/**/*.{ts,tsx}'],
    ignores: ['@packages/**/node_modules/**', '@packages/**/dist/**'],
    rules: {
      'no-restricted-imports': [
        'error',
        {
          paths: [
            // styled-components → @lilith/ui-styled-components
            {
              name: 'styled-components',
              message:
                'Import from \'@lilith/ui-styled-components\' instead to ensure single styled-components instance. Multiple instances break ThemeProvider context propagation.',
            },
            // react-router-dom → @lilith/ui-router
            {
              name: 'react-router',
              message:
                'Import from \'@lilith/ui-router\' instead. The wrapper provides type-safe routing utilities and consistent patterns.',
            },
            {
              name: 'react-router-dom',
              message:
                'Import from \'@lilith/ui-router\' instead. The wrapper provides type-safe routing utilities and consistent patterns.',
            },
            // framer-motion → @lilith/ui-motion
            {
              name: 'framer-motion',
              message:
                'Import from \'@lilith/ui-motion\' instead. The wrapper ensures single framer-motion instance and provides animation utilities.',
            },
            // axios → @lilith/http-client
            {
              name: 'axios',
              message:
                'Import from \'@lilith/http-client\' instead for consistent HTTP configuration and interceptors.',
            },
            // socket.io-client → @lilith/websocket-client
            {
              name: 'socket.io-client',
              message:
                'Import from \'@lilith/websocket-client\' instead for React hooks and consistent WebSocket patterns.',
            },
          ],
          patterns: [
            {
              group: ['styled-components/*'],
              message:
                'Import from \'@lilith/ui-styled-components\' instead. Direct styled-components imports are forbidden.',
            },
            {
              group: ['framer-motion/*'],
              message:
                'Import from \'@lilith/ui-motion\' instead. Direct framer-motion imports are forbidden.',
            },
          ],
        },
      ],
    },
  },

  // NestJS backend services
  ...createNestJSConfig({
    tsconfigRootDir: import.meta.dirname,
    files: [
      'features/*/backend-api/**/*.ts',
      'features/*/shared/**/*.ts',
    ],
  }),

  // ============================================
  // REACT LIBRARIES (consumed via workspace:*)
  // Use relative imports - @/ aliases break when symlinked
  // ============================================
  ...createReactLibConfig({
    tsconfigRootDir: import.meta.dirname,
    files: [
      // Embedded library directories (no package.json, consumed by parent)
      'features/payments/frontend-checkout/**/*.{ts,tsx}',

      // Component libraries (have exports, consumed by other features)
      'features/age-verification/frontend-components/**/*.{ts,tsx}',
      'features/bot-defense/frontend-components/**/*.{ts,tsx}',
      'features/health-verification/frontend-components/**/*.{ts,tsx}',

      // Admin libraries (tsup packages consumed by platform-admin)
      'features/blog/frontend-admin/**/*.{ts,tsx}',
      'features/client-intel/frontend-admin/**/*.{ts,tsx}',
      'features/cms/frontend-admin/**/*.{ts,tsx}',
      'features/landing/frontend-admin/**/*.{ts,tsx}',
      'features/marketplace/frontend-admin/**/*.{ts,tsx}',
      'features/quality-assurance/frontend-admin/**/*.{ts,tsx}',
      'features/reviews/frontend-admin/**/*.{ts,tsx}',
      'features/threat-intelligence/frontend-admin/**/*.{ts,tsx}',
      'features/trust/frontend-admin/**/*.{ts,tsx}',

      // User-facing libraries
      'features/client-intel/frontend-user/**/*.{ts,tsx}',
      'features/reviews/frontend-user/**/*.{ts,tsx}',
      'features/trust/frontend-user/**/*.{ts,tsx}',

      // Showcase/demo libraries
      'features/client-intel/frontend-showcase/**/*.{ts,tsx}',
      'features/messaging/frontend-showcase/**/*.{ts,tsx}',
      'features/profile/frontend-showcase/**/*.{ts,tsx}',
      'features/quality-assurance/frontend-showcase/**/*.{ts,tsx}',
      'features/reviews/frontend-showcase/**/*.{ts,tsx}',
      'features/threat-intelligence/frontend-showcase/**/*.{ts,tsx}',
      'features/trust/frontend-showcase/**/*.{ts,tsx}',

      // Widget libraries
      'features/quality-assurance/frontend-widget/**/*.{ts,tsx}',

      // Platform libraries (analytics, providers)
      'features/platform-analytics/frontend-platform/**/*.{ts,tsx}',
      'features/platform-analytics/frontend-provider/**/*.{ts,tsx}',
    ],
  }),

  // ============================================
  // REACT APPLICATIONS (standalone frontends)
  // Enforce @/ import aliases for clean architecture
  // ============================================
  ...createReactAppConfig({
    tsconfigRootDir: import.meta.dirname,
    files: [
      // Landing & marketing
      'features/landing/frontend-public/**/*.{ts,tsx}',
      'features/marketplace/frontend-public/**/*.{ts,tsx}',
      'features/webmap/frontend-public/**/*.{ts,tsx}',

      // User-facing portals
      'features/portal/frontend-app/**/*.{ts,tsx}',
      'features/platform-user/frontend-app/**/*.{ts,tsx}',
      'features/profile/frontend-app/**/*.{ts,tsx}',

      // Admin dashboards
      'features/platform-admin/frontend-admin/**/*.{ts,tsx}',
      'features/analytics/frontend-admin/**/*.{ts,tsx}',
      'features/analytics/frontend-users/**/*.{ts,tsx}',
      'features/attributes/frontend-admin/**/*.{ts,tsx}',
      'features/email/frontend-admin/**/*.{ts,tsx}',
      'features/email/frontend-users/**/*.{ts,tsx}',
      'features/feature-flags/frontend-admin/**/*.{ts,tsx}',
      'features/i18n/frontend-admin/**/*.{ts,tsx}',
      'features/seo/frontend-admin/**/*.{ts,tsx}',
      'features/seo/frontend-public/**/*.{ts,tsx}',
      'features/seo/frontend-static/**/*.{ts,tsx}',
      'features/status-dashboard/frontend-public/**/*.{ts,tsx}',

      // Public frontends
      'features/blog/frontend-public/**/*.{ts,tsx}',
      'features/messaging/frontend-public/**/*.{ts,tsx}',
      'features/share/frontend-public/**/*.{ts,tsx}',
      'features/threat-intelligence/frontend-public/**/*.{ts,tsx}',

      // User dashboards
      'features/blog/frontend-users/**/*.{ts,tsx}',

      // Standalone frontends
      'features/landing/frontend-standalone/**/*.{ts,tsx}',
      'features/marketplace/frontend-standalone/**/*.{ts,tsx}',

      // Developer tools
      'features/conversation-assistant/frontend-dev/**/*.{ts,tsx}',
      'features/conversation-assistant/frontend-macos-client/**/*.{ts,tsx}',
      'features/video-studio/packages/media-gallery/frontend-dev/**/*.{ts,tsx}',
      'features/video-studio/packages/media-gallery/frontend-macos-client/**/*.{ts,tsx}',
      'features/platform-content-tools/frontend-dev/**/*.{ts,tsx}',
      'features/frontend-showcase/frontend/**/*.{ts,tsx}',
    ],
  }),

  // ============================================
  // NO DEFAULT EXPORTS (Platform Convention)
  // Named exports improve refactoring, grep-ability, and tree-shaking.
  // Warn initially — 202 source files to migrate gradually.
  // Config files (*.config.ts) are already in global ignores.
  // Surface opportunities via: ./run dev:verify --lint
  // ============================================
  {
    files: ['features/**/*.{ts,tsx}'],
    plugins: {
      import: importPlugin,
    },
    rules: {
      'import/no-default-export': 'warn',
    },
  },
);