import { describe, it, expect } from 'vitest';
import { renderStatus } from './status-md-generator.mjs';

const baseInputs = (overrides = {}) => ({
  now: '2026-05-19T10:00:00+03:00',
  c1: { status: 'ok', detail: 'no drift' },
  c2: { status: 'ok', detail: '0 version drift' },
  c3: { status: 'ok', detail: 'last read today' },
  c5: { status: 'ok', detail: 'coverage OK · registration OK' },
  c6: { status: 'ok', detail: '14 chains in sync' },
  observer: { episodeCount: 12, observerErrors: 0, piiMatches: 0 },
  missed: { totalMissed: 0, byNode: {}, byClassification: {} },
  ...overrides,
});

describe('renderStatus', () => {
  it('renders all 5 controllers + metrics', () => {
    const md = renderStatus(baseInputs());
    expect(md).toContain('# Brain Status');
    expect(md).toContain('| C1 L1-watcher | ✅');
    expect(md).toContain('| C2 Cross-ref consistency | ✅');
    expect(md).toContain('| C3 Observer-of-observer | ✅');
    expect(md).toContain('| C4 Сигнальный статус | ✅');
    expect(md).toContain('| C5 Observer-coverage | ✅');
    expect(md).toContain('12 episodes');
  });

  it('includes a C6 chain-map row', () => {
    const md = renderStatus(baseInputs());
    expect(md).toContain('| C6 Chain map sync | ✅');
  });

  it('shows a warn status for the coverage controller', () => {
    const md = renderStatus(baseInputs({ c5: { status: 'warn', detail: '3 commits, 0 episodes' } }));
    expect(md).toContain('| C5 Observer-coverage | ⚠️');
  });

  it('shows the observer_error count in the metrics block', () => {
    const md = renderStatus(baseInputs({ observer: { episodeCount: 4, observerErrors: 2, piiMatches: 0 } }));
    expect(md).toContain('2 observer_error markers');
  });

  it('shows a red status for failing controllers', () => {
    const md = renderStatus(baseInputs({ c1: { status: 'fail', detail: '2 plugins not formalized' } }));
    expect(md).toContain('| C1 L1-watcher | 🔴');
  });

  it('mentions the conditional capability-readiness behavioral rule (§16.4 v1.36)', () => {
    const md = renderStatus(baseInputs());
    expect(md).toContain('Неиспользованные узлы — не алерт');
    expect(md).toContain('если профильной задачи не было');
    expect(md).toContain('feedback_brain_unused_tools_not_problem');
  });

  it('shows piiMatches > 0 when counter file has data (Task 3)', () => {
    const md = renderStatus(baseInputs({ observer: { episodeCount: 24, observerErrors: 0, piiMatches: 7 } }));
    expect(md).toMatch(/7 PII matches before filter/);
  });
});

describe('renderStatus — last /brain-retro (Task 10)', () => {
  it('shows last /brain-retro days-ago when counter has data', () => {
    const md = renderStatus(baseInputs({ lastRetroDaysAgo: 3 }));
    expect(md).toMatch(/Last \/brain-retro:\s*3 day\(s\) ago/);
  });
  it('shows "never" when lastRetroDaysAgo is null', () => {
    const md = renderStatus(baseInputs({ lastRetroDaysAgo: null }));
    expect(md).toMatch(/Last \/brain-retro:\s*never/);
  });
  it('shows "never" when lastRetroDaysAgo is undefined', () => {
    const md = renderStatus(baseInputs());
    expect(md).toMatch(/Last \/brain-retro:\s*never/);
  });
});

describe('renderStatus — v1 episodes count surface (Task 18)', () => {
  it('shows v1 count when present', () => {
    const md = renderStatus(baseInputs({ observer: { episodeCount: 22, observerErrors: 0, piiMatches: 0, v1Episodes: 5 } }));
    expect(md).toMatch(/Legacy v1 episodes \(not in factor analysis\):\s*5/);
  });
  it('shows 0 when v1Episodes undefined', () => {
    const md = renderStatus(baseInputs());
    expect(md).toMatch(/Legacy v1 episodes \(not in factor analysis\):\s*0/);
  });
});

describe('renderStatus — missed activations (Task 7, Pravila §16.4 v1.36)', () => {
  it('renders missed_activations: 0 when there are no misses', () => {
    const md = renderStatus(baseInputs());
    expect(md).toContain('missed_activations: 0');
  });

  it('renders missed_activations: N when misses occur', () => {
    const md = renderStatus(baseInputs({
      missed: { totalMissed: 3, byNode: { '#11': 2, '#12': 1 }, byClassification: { refactor: 3 } },
    }));
    expect(md).toContain('missed_activations: 3');
  });

  it('keeps C5 ✅ when controller is ok and no misses', () => {
    const md = renderStatus(baseInputs());
    expect(md).toContain('| C5 Observer-coverage | ✅');
  });

  it('honors the c5 status override (warn) regardless of missed count', () => {
    const md = renderStatus(baseInputs({
      c5: { status: 'warn', detail: '16 missed activation(s)' },
    }));
    expect(md).toContain('| C5 Observer-coverage | ⚠️');
  });
});