// @vitest-environment happy-dom
import { describe, it, expect } from 'vitest'

import SourceHealthDot from '../../src/components/subscriptions/SourceHealthDot.vue'
import { VTooltipStub, mountComponent } from '../support/mountComponent.js'

// Milestone #387 A3. The dot is the only always-visible signal per source, so
// the grade it picks IS the claim FC makes about that subscription. These pin
// that no-access is graded as its own thing — not as healthy (which hides it)
// and not as a failure (which would send the operator hunting for a break that
// isn't there).

const checked = { last_checked_at: '2026-09-09T12:00:00+00:00' }

function dotClass (w) {
  return w.find('.fc-health-dot').classes().join(' ')
}

describe('SourceHealthDot', () => {
  it('grades a tier-gated source as no-access, not healthy', () => {
    const w = mountComponent(SourceHealthDot, {
      stubs: { VTooltip: VTooltipStub },
      props: {
        source: { ...checked, consecutive_failures: 0, error_type: 'tier_limited' },
      },
    })
    expect(dotClass(w)).toContain('fc-health-dot--no-access')
    expect(dotClass(w)).not.toContain('fc-health-dot--healthy')
  })

  it('shows the gated count when the list endpoint supplied one', () => {
    const w = mountComponent(SourceHealthDot, {
      stubs: { VTooltip: VTooltipStub },
      props: {
        source: {
          ...checked, consecutive_failures: 0,
          error_type: 'tier_limited', tier_gated_count: 47,
        },
      },
    })
    expect(w.text()).toContain('47 posts')
  })

  it('states the condition without a number when no count was joined in', () => {
    const w = mountComponent(SourceHealthDot, {
      stubs: { VTooltip: VTooltipStub },
      props: {
        source: {
          ...checked, consecutive_failures: 0,
          error_type: 'tier_limited', tier_gated_count: null,
        },
      },
    })
    // Absent is not zero: never render "0 posts you don't have access to".
    expect(w.text()).not.toContain('0 post')
    expect(w.text()).toContain("tier you don't hold")
  })

  // Milestone #387 C5. The count says WHAT; these say WHY — a much stronger
  // claim, so the cases that must stay silent are pinned alongside the ones
  // that speak.

  function gated (extra) {
    return mountComponent(SourceHealthDot, {
      stubs: { VTooltip: VTooltipStub },
      props: {
        source: {
          ...checked, consecutive_failures: 0,
          error_type: 'tier_limited', tier_gated_count: 47, ...extra,
        },
      },
    })
  }

  it('a lapsed membership says the subscription ended', () => {
    expect(gated({ gated_reason: 'lapsed' }).text()).toContain('not a patron any more')
  })

  it('an active membership says the tier is the limit, not the subscription', () => {
    const text = gated({ gated_reason: 'tier' }).text()
    expect(text).toContain("tier doesn't cover these posts")
    expect(text).not.toContain('not a patron any more')
  })

  it('a free follow is not described as a lapsed subscription', () => {
    const text = gated({ gated_reason: 'free' }).text()
    expect(text).toContain('follow this creator for free')
    expect(text).not.toContain('not a patron any more')
  })

  it('no reason means the count stands alone, with no invented explanation', () => {
    // null covers all four not-evidence cases the backend collapses into it:
    // campaign absent, roster stale, never swept, status uncharacterised.
    const text = gated({ gated_reason: null }).text()
    expect(text).toContain('47 posts')
    expect(text).not.toContain('patron')
    expect(text).not.toContain('tier doesn')
  })

  it('a reason the frontend has not been taught renders nothing', () => {
    // The backend's status vocabulary grows per platform (D1). An unknown word
    // must degrade to the bare count, never to `undefined` in the tooltip.
    const text = gated({ gated_reason: 'some_future_word' }).text()
    expect(text).toContain('47 posts')
    expect(text).not.toContain('undefined')
  })

  it('a reason never appears on a source that is not gated', () => {
    const w = mountComponent(SourceHealthDot, {
      stubs: { VTooltip: VTooltipStub },
      props: {
        source: {
          ...checked, consecutive_failures: 0,
          error_type: null, gated_reason: 'lapsed',
        },
      },
    })
    // The roster annotates a gated state; it never asserts one on its own.
    expect(w.text()).not.toContain('not a patron any more')
  })

  it('a genuinely failing source still grades as a failure, gated or not', () => {
    const w = mountComponent(SourceHealthDot, {
      stubs: { VTooltip: VTooltipStub },
      props: {
        source: { ...checked, consecutive_failures: 9, error_type: 'tier_limited' },
        warningThreshold: 5,
      },
    })
    expect(dotClass(w)).toContain('fc-health-dot--critical')
    expect(dotClass(w)).not.toContain('fc-health-dot--no-access')
  })

  it('an unchecked source is still unchecked', () => {
    const w = mountComponent(SourceHealthDot, {
      stubs: { VTooltip: VTooltipStub },
      props: { source: { last_checked_at: null, consecutive_failures: 0 } },
    })
    expect(dotClass(w)).toContain('fc-health-dot--unchecked')
  })
})