import { it, describe, expect } from 'vitest';
import { Schema } from 'effect';
import { EntityESchema } from '../index.js';

describe('ESchema', () => {
  describe('Descriptors', () => {
    describe('Get descriptor', () => {
      it('returns JSON Schema for encoded type including id field', () => {
        const schema = EntityESchema.make('User', 'id', {
          name: Schema.String,
          age: Schema.Number,
        }).build();

        const descriptor = schema.getDescriptor();
        expect(descriptor.type).toBe('object');
        expect(descriptor.properties).toHaveProperty('id');
        expect(descriptor.properties).toHaveProperty('name');
        expect(descriptor.properties).toHaveProperty('age');
        expect(descriptor.properties).toHaveProperty('_v');
      });

      it('includes _v as literal with latest version', () => {
        const schema = EntityESchema.make('Test', 'id', {
          a: Schema.String,
        }).build();

        const descriptor = schema.getDescriptor();
        const versionSchema = descriptor.properties._v as { enum?: string[] };
        expect(versionSchema.enum).toEqual(['v1']);
      });

      it('reflects evolved schema with correct version', () => {
        const schema = EntityESchema.make('Test', 'id', {
          a: Schema.String,
        })
          .evolve('v2', { b: Schema.Number }, (v) => ({ ...v, b: 0 }))
          .build();

        const descriptor = schema.getDescriptor();
        const versionSchema = descriptor.properties._v as { enum?: string[] };

        expect(descriptor.properties).toHaveProperty('id');
        expect(descriptor.properties).toHaveProperty('a');
        expect(descriptor.properties).toHaveProperty('b');
        expect(versionSchema.enum).toEqual(['v2']);
      });

      it('includes id in properties', () => {
        const schema = EntityESchema.make('User', 'id', {
          name: Schema.String,
        }).build();

        const descriptor = schema.getDescriptor();
        expect(descriptor.properties).toHaveProperty('id');
      });
    });
  });
});