/**
 * Constants Integration Tests
 * TASK-005: Constants Extraction and Configuration Centralization
 * 
 * Tests to verify that all constants are properly exported and accessible
 */

import {
  APP_CONFIG,
  VALIDATION_RULES,
  VALIDATION_MESSAGES,
  COLORS,
  LAYOUT,
  ERROR_CODES,
  ERROR_MESSAGES,
  SCHEMA_STATES,
  DEFAULT_TAB,
  Constants,
  CONSTANTS_METADATA
} from '../index';

describe('Constants Integration Tests', () => {
  describe('Configuration Constants', () => {
    test('APP_CONFIG should contain all required properties', () => {
      expect(APP_CONFIG).toBeDefined();
      expect(APP_CONFIG.DEFAULT_TAB).toBe('ingestion');
      expect(APP_CONFIG.AUTHENTICATION).toBeDefined();
      expect(APP_CONFIG.CACHE).toBeDefined();
      expect(APP_CONFIG.PERFORMANCE).toBeDefined();
      expect(APP_CONFIG.FEATURES).toBeDefined();
    });

    test('DEFAULT_TAB should be exported directly', () => {
      expect(DEFAULT_TAB).toBe('ingestion');
      expect(DEFAULT_TAB).toBe(APP_CONFIG.DEFAULT_TAB);
    });
  });

  describe('Validation Constants', () => {
    test('VALIDATION_RULES should contain all field types', () => {
      expect(VALIDATION_RULES).toBeDefined();
      expect(VALIDATION_RULES.TEXT).toBeDefined();
      expect(VALIDATION_RULES.SCHEMA_NAME).toBeDefined();
      expect(VALIDATION_RULES.RANGE_KEY).toBeDefined();
      expect(VALIDATION_RULES.FILE_UPLOAD).toBeDefined();
    });

    test('VALIDATION_MESSAGES should contain SCHEMA-002 compliant messages', () => {
      expect(VALIDATION_MESSAGES).toBeDefined();
      expect(VALIDATION_MESSAGES.SCHEMA_NOT_APPROVED).toBe('Only approved schemas can be used for this operation');
      expect(VALIDATION_MESSAGES.RANGE_KEY_REQUIRED).toBe('Range key is required for range schema mutations');
    });
  });

  describe('Styling Constants', () => {
    test('COLORS should contain schema state colors (SCHEMA-002)', () => {
      expect(COLORS).toBeDefined();
      expect(COLORS.SCHEMA_STATES).toBeDefined();
      expect(COLORS.SCHEMA_STATES.APPROVED).toBeDefined();
      expect(COLORS.SCHEMA_STATES.AVAILABLE).toBeDefined();
      expect(COLORS.SCHEMA_STATES.BLOCKED).toBeDefined();
    });

    test('LAYOUT should contain all dimension constants', () => {
      expect(LAYOUT).toBeDefined();
      expect(LAYOUT.SIDEBAR_WIDTH).toBe(320);
      expect(LAYOUT.HEADER_HEIGHT).toBe(64);
      expect(LAYOUT.BORDER_RADIUS).toBeDefined();
    });
  });

  describe('Error Constants', () => {
    test('ERROR_CODES should contain all error types', () => {
      expect(ERROR_CODES).toBeDefined();
      expect(ERROR_CODES.SCHEMA_NOT_APPROVED).toBe('SCHEMA_NOT_APPROVED');
      expect(ERROR_CODES.RANGE_KEY_REQUIRED).toBe('RANGE_KEY_REQUIRED');
      expect(ERROR_CODES.AUTH_REQUIRED).toBe('AUTH_REQUIRED');
    });

    test('ERROR_MESSAGES should map to ERROR_CODES', () => {
      expect(ERROR_MESSAGES).toBeDefined();
      expect(ERROR_MESSAGES[ERROR_CODES.SCHEMA_NOT_APPROVED]).toBeDefined();
      expect(ERROR_MESSAGES[ERROR_CODES.RANGE_KEY_REQUIRED]).toBeDefined();
    });
  });

  describe('Schema Constants (SCHEMA-002 Compliance)', () => {
    test('SCHEMA_STATES should contain all valid states', () => {
      expect(SCHEMA_STATES).toBeDefined();
      expect(SCHEMA_STATES.APPROVED).toBe('approved');
      expect(SCHEMA_STATES.AVAILABLE).toBe('available');
      expect(SCHEMA_STATES.BLOCKED).toBe('blocked');
    });
  });

  describe('Namespaced Constants', () => {
    test('Constants namespace should provide organized access', () => {
      expect(Constants).toBeDefined();
      expect(Constants.Config).toBeDefined();
      expect(Constants.Validation).toBeDefined();
      expect(Constants.Styles).toBeDefined();
      expect(Constants.Errors).toBeDefined();
      expect(Constants.Schema).toBeDefined();
    });

    test('Namespaced constants should match direct exports', () => {
      expect(Constants.Config.APP_CONFIG).toEqual(APP_CONFIG);
      expect(Constants.Validation.VALIDATION_RULES).toEqual(VALIDATION_RULES);
      expect(Constants.Styles.COLORS).toEqual(COLORS);
      expect(Constants.Errors.ERROR_CODES).toEqual(ERROR_CODES);
    });
  });

  describe('Constants Metadata', () => {
    test('CONSTANTS_METADATA should provide system information', () => {
      expect(CONSTANTS_METADATA).toBeDefined();
      expect(CONSTANTS_METADATA.VERSION).toBe('1.0.0');
      expect(CONSTANTS_METADATA.CATEGORIES).toContain('Configuration');
      expect(CONSTANTS_METADATA.CATEGORIES).toContain('Validation');
      expect(CONSTANTS_METADATA.CATEGORIES).toContain('Styling');
      expect(CONSTANTS_METADATA.MIGRATION_STATUS).toBeDefined();
    });
  });

  describe('Backward Compatibility', () => {
    test('Should still be able to import from specific files', async () => {
      const { APP_CONFIG: DirectAppConfig } = await import('../config');
      const { VALIDATION_RULES: DirectValidationRules } = await import('../validation');
      const { COLORS: DirectColors } = await import('../styling');
      
      expect(DirectAppConfig).toEqual(APP_CONFIG);
      expect(DirectValidationRules).toEqual(VALIDATION_RULES);
      expect(DirectColors).toEqual(COLORS);
    });
  });

  describe('Type Safety', () => {
    test('Constants should have consistent types', () => {
      // String constants
      expect(typeof DEFAULT_TAB).toBe('string');
      expect(typeof SCHEMA_STATES.APPROVED).toBe('string');
      
      // Number constants
      expect(typeof LAYOUT.SIDEBAR_WIDTH).toBe('number');
      expect(typeof APP_CONFIG.CACHE.DEFAULT_TTL_MS).toBe('number');
      
      // Object constants
      expect(typeof COLORS.SCHEMA_STATES).toBe('object');
      expect(typeof VALIDATION_RULES.TEXT).toBe('object');
    });
  });

  describe('No Duplicate Constants', () => {
    test('Should not have duplicate constant definitions', () => {
      // Test that critical constants are only defined once
      const schemaApprovedValue = SCHEMA_STATES.APPROVED;
      const defaultTabValue = DEFAULT_TAB;
      
      // These should be the same across all imports
      expect(schemaApprovedValue).toBe('approved');
      expect(defaultTabValue).toBe('ingestion');
    });
  });

  describe('Performance Constants', () => {
    test('All timeout and delay constants should be reasonable', () => {
      expect(APP_CONFIG.PERFORMANCE.DEBOUNCE_DELAY_MS).toBeGreaterThan(0);
      expect(APP_CONFIG.PERFORMANCE.DEBOUNCE_DELAY_MS).toBeLessThan(1000);
      
      expect(APP_CONFIG.CACHE.DEFAULT_TTL_MS).toBeGreaterThan(0);
      expect(APP_CONFIG.AUTHENTICATION.SESSION_TIMEOUT_MS).toBeGreaterThan(60000); // At least 1 minute
    });
  });
});

describe('Constants Usage Patterns', () => {
  describe('Component Integration', () => {
    test('Constants should support component styling patterns', () => {
      // Test that styling constants can be used in component classes
      const buttonClass = `${COLORS.SCHEMA_STATES.APPROVED.BACKGROUND} ${COLORS.SCHEMA_STATES.APPROVED.TEXT}`;
      expect(buttonClass).toMatch(/bg-\w+-\d+/);
      expect(buttonClass).toMatch(/text-\w+-\d+/);
    });

    test('Validation constants should support form validation', () => {
      expect(VALIDATION_RULES.RANGE_KEY.MIN_LENGTH).toBeGreaterThan(0);
      expect(VALIDATION_MESSAGES.RANGE_KEY_REQUIRED).toBeTruthy();
    });
  });

  describe('Error Handling Integration', () => {
    test('Error constants should support error recovery', () => {
      expect(ERROR_CODES.SCHEMA_NOT_APPROVED).toBeTruthy();
      expect(ERROR_MESSAGES[ERROR_CODES.SCHEMA_NOT_APPROVED]).toBeTruthy();
    });
  });
});