import { describe, expect, it } from 'vitest'
import { isKbxProblem, kbxApiCatalog } from '@kbx/contracts'

describe('KBX API contract', () => {
  it('keeps operation IDs and routes unique', () => {
    const operations = Object.values(kbxApiCatalog)
    expect(new Set(operations.map(x => x.id)).size).toBe(operations.length)
    expect(new Set(operations.map(x => `${x.method} ${x.path}`)).size).toBe(operations.length)
  })

  it('requires a stable key only for mutation operations', () => {
    const required = Object.values(kbxApiCatalog).filter(x => x.idempotency === 'required')
    expect(required.length).toBeGreaterThan(0)
    expect(required.every(x => x.method !== 'GET')).toBe(true)
  })

  it('recognizes the public problem discriminator family', () => {
    for (const type of ['validation','business-rule','conflict','permission','not-found','integration','system']) {
      expect(isKbxProblem({ type, title: 'test' })).toBe(true)
    }
  })
})
