import {
  DashboardServiceError,
  normalizeDashboardStats,
} from '../src/features/dashboard/dashboard-service'

describe('dashboard response contract', () => {
  it('normalizes exact server aggregates', () => {
    const result = normalizeDashboardStats({
      total_sessions: 3,
      total_recording_seconds: 210.5,
      total_word_count: 35,
      today_sessions: 1,
      today_recording_seconds: 60,
      today_word_count: 10,
      streak_days: 2,
      recent_history: [{
        id: 'entry-1',
        title: null,
        text: 'transcript',
        duration_seconds: 60,
        mode: 'dictation',
        created_at: '2026-08-21T00:00:00Z',
      }],
      generated_at: '2026-08-21T00:01:00Z',
    })
    expect(result.totalRecordingSeconds).toBe(210.5)
    expect(result.streakDays).toBe(2)
    expect(result.recentHistory).toHaveLength(1)
  })

  it('rejects partial or fabricated aggregate responses', () => {
    expect(() => normalizeDashboardStats({ recent_history: [] }))
      .toThrow(DashboardServiceError)
    expect(() => normalizeDashboardStats({
      total_sessions: -1,
      total_recording_seconds: 0,
      total_word_count: 0,
      today_sessions: 0,
      today_recording_seconds: 0,
      today_word_count: 0,
      streak_days: 0,
      recent_history: [],
      generated_at: 'invalid',
    })).toThrow('invalid-response')
  })
})