import { userData } from '@/features/User/userDataTypes'
import { getUserDisplayName } from '@/utils/userUtils'

describe('userUtils', () => {
  describe('getUserDisplayName', () => {
    it('returns full name when user has name and family_name', () => {
      const user: userData = {
        sub: 'test',
        email: 'test@test.com',
        family_name: 'Doe',
        given_name: 'John',
        name: 'John',
        sid: 'mockSid'
      }

      expect(getUserDisplayName(user)).toBe('John Doe')
    })

    it('returns email when user does not have name and family_name', () => {
      const user: userData = {
        sub: 'test',
        email: 'test@test.com',
        family_name: '',
        given_name: '',
        name: '',
        sid: 'mockSid'
      }

      expect(getUserDisplayName(user)).toBe('test@test.com')
    })

    it('returns email when user has only email', () => {
      const user: userData = {
        sub: 'test',
        email: 'user@example.com',
        family_name: '',
        given_name: '',
        name: '',
        sid: 'mockSid'
      }

      expect(getUserDisplayName(user)).toBe('user@example.com')
    })

    it('returns empty string when user is null', () => {
      expect(getUserDisplayName(null)).toBe('')
    })

    it('returns empty string when user is undefined', () => {
      expect(getUserDisplayName(undefined)).toBe('')
    })

    it('returns empty string when user has no name, family_name, or email', () => {
      const user: userData = {
        sub: 'test',
        email: '',
        family_name: '',
        given_name: '',
        name: '',
        sid: 'mockSid'
      }

      expect(getUserDisplayName(user)).toBe('')
    })

    it('handles user with only name (no family_name)', () => {
      const user: userData = {
        sub: 'test',
        email: 'test@test.com',
        family_name: '',
        given_name: 'John',
        name: 'John',
        sid: 'mockSid'
      }

      expect(getUserDisplayName(user)).toBe('test@test.com')
    })

    it('handles user with only family_name (no name)', () => {
      const user: userData = {
        sub: 'test',
        email: 'test@test.com',
        family_name: 'Doe',
        given_name: '',
        name: '',
        sid: 'mockSid'
      }

      expect(getUserDisplayName(user)).toBe('test@test.com')
    })
  })
})