/**
 * Test script for view-model-taxonomy rule
 */

const rule = require('./view-model-taxonomy.js');
const { Linter } = require('eslint');

const linter = new Linter();

// Register the plugin
linter.defineRule('gridpilot-rules/view-model-taxonomy', rule);

// Test 1: DTO import should be caught
const codeWithDtoImport = `
import type { RecordEngagementOutputDTO } from '@/lib/types/generated/RecordEngagementOutputDTO';

export class RecordEngagementOutputViewModel {
  eventId: string;
  engagementWeight: number;

  constructor(dto: RecordEngagementOutputDTO) {
    this.eventId = dto.eventId;
    this.engagementWeight = dto.engagementWeight;
  }
}
`;

// Test 2: Inline ViewData interface should be caught
const codeWithInlineViewData = `
export interface RaceViewData {
  id: string;
  name: string;
}

export class RaceViewModel {
  private readonly data: RaceViewData;

  constructor(data: RaceViewData) {
    this.data = data;
  }
}
`;

// Test 3: Valid code (no violations)
const validCode = `
import { RaceViewData } from '@/lib/view-data/RaceViewData';

export class RaceViewModel {
  private readonly data: RaceViewData;

  constructor(data: RaceViewData) {
    this.data = data;
  }
}
`;

// Test 4: Disallowed import from service layer (should be caught)
const codeWithServiceImport = `
import { SomeService } from '@/lib/services/SomeService';

export class RaceViewModel {
  private readonly service: SomeService;

  constructor(service: SomeService) {
    this.service = service;
  }
}
`;

// Test 5: Strict import violation (import from non-allowed path)
const codeWithStrictImportViolation = `
import { SomeOtherThing } from '@/lib/other/SomeOtherThing';

export class RaceViewModel {
  private readonly thing: SomeOtherThing;

  constructor(thing: SomeOtherThing) {
    this.thing = thing;
  }
}
`;

console.log('=== Test 1: DTO import ===');
const messages1 = linter.verify(codeWithDtoImport, {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: 'module',
  },
  rules: {
    'gridpilot-rules/view-model-taxonomy': 'error',
  },
});
console.log('Messages:', messages1);
console.log('Expected: Should have 1 error for DTO import');
console.log('Actual: ' + messages1.length + ' error(s)');
console.log('');

console.log('=== Test 2: Inline ViewData interface ===');
const messages2 = linter.verify(codeWithInlineViewData, {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: 'module',
  },
  rules: {
    'gridpilot-rules/view-model-taxonomy': 'error',
  },
});
console.log('Messages:', messages2);
console.log('Expected: Should have 1 error for inline ViewData interface');
console.log('Actual: ' + messages2.length + ' error(s)');
console.log('');

console.log('=== Test 3: Valid code ===');
const messages3 = linter.verify(validCode, {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: 'module',
  },
  rules: {
    'gridpilot-rules/view-model-taxonomy': 'error',
  },
});
console.log('Messages:', messages3);
console.log('Expected: Should have 0 errors');
console.log('Actual: ' + messages3.length + ' error(s)');
console.log('');

console.log('=== Test 4: Service import (should be caught) ===');
const messages4 = linter.verify(codeWithServiceImport, {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: 'module',
  },
  rules: {
    'gridpilot-rules/view-model-taxonomy': 'error',
  },
});
console.log('Messages:', messages4);
console.log('Expected: Should have 1 error for service import');
console.log('Actual: ' + messages4.length + ' error(s)');
console.log('');

console.log('=== Test 5: Strict import violation ===');
const messages5 = linter.verify(codeWithStrictImportViolation, {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 2020,
    sourceType: 'module',
  },
  rules: {
    'gridpilot-rules/view-model-taxonomy': 'error',
  },
});
console.log('Messages:', messages5);
console.log('Expected: Should have 1 error for strict import violation');
console.log('Actual: ' + messages5.length + ' error(s)');
console.log('');

console.log('=== Summary ===');
console.log('Test 1 (DTO import): ' + (messages1.length === 1 ? '✓ PASS' : '✗ FAIL'));
console.log('Test 2 (Inline ViewData): ' + (messages2.length === 1 ? '✓ PASS' : '✗ FAIL'));
console.log('Test 3 (Valid code): ' + (messages3.length === 0 ? '✓ PASS' : '✗ FAIL'));
console.log('Test 4 (Service import): ' + (messages4.length === 1 ? '✓ PASS' : '✗ FAIL'));
console.log('Test 5 (Strict import): ' + (messages5.length === 1 ? '✓ PASS' : '✗ FAIL'));