import { describe, it, expect } from 'vitest';
import { mkdtempSync, writeFileSync, readFileSync, existsSync, rmSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { processEvent } from './enforce-askuser-answer-parser.mjs';

function tmpRuntimeDir() {
  return mkdtempSync(join(tmpdir(), 'askuser-decisions-test-'));
}

describe('enforce-askuser-answer-parser wrapper (Stream H Task 6)', () => {
  it('appends approve_git_operation record for git-pattern answer', () => {
    const dir = tmpRuntimeDir();
    const event = {
      session_id: 'sess-abc',
      tool_input: { questions: [{ question: 'разрешить?' }] },
      tool_response: { answers: { 'разрешить?': 'подтверди git push origin main' } },
    };
    processEvent(event, { runtimeDir: dir, nowMs: 1700000000000 });
    const path = join(dir, 'askuser-decisions-sess-abc.jsonl');
    expect(existsSync(path)).toBe(true);
    const lines = readFileSync(path, 'utf-8').split(/\r?\n/).filter(Boolean);
    expect(lines.length).toBe(1);
    const rec = JSON.parse(lines[0]);
    expect(rec).toMatchObject({ type: 'approve_git_operation', command: 'git push origin main', ts: 1700000000000 });
    rmSync(dir, { recursive: true, force: true });
  });

  it('appends nothing for non-git answer', () => {
    const dir = tmpRuntimeDir();
    const event = {
      session_id: 'sess-def',
      tool_input: { questions: [{ question: 'continue?' }] },
      tool_response: { answers: { 'continue?': 'yes' } },
    };
    processEvent(event, { runtimeDir: dir });
    const path = join(dir, 'askuser-decisions-sess-def.jsonl');
    expect(existsSync(path)).toBe(false);
    rmSync(dir, { recursive: true, force: true });
  });

  it('appends multiple records across multiple answers', () => {
    const dir = tmpRuntimeDir();
    const event = {
      session_id: 'sess-multi',
      tool_input: { questions: [{ question: 'A?' }, { question: 'B?' }] },
      tool_response: { answers: { 'A?': 'git push origin main', 'B?': 'git add tools/x.mjs' } },
    };
    processEvent(event, { runtimeDir: dir, nowMs: 1700000000000 });
    const path = join(dir, 'askuser-decisions-sess-multi.jsonl');
    const lines = readFileSync(path, 'utf-8').split(/\r?\n/).filter(Boolean);
    expect(lines.length).toBe(2);
    rmSync(dir, { recursive: true, force: true });
  });

  it('fail-open: missing tool_response does not throw', () => {
    const dir = tmpRuntimeDir();
    expect(() => processEvent({ session_id: 's' }, { runtimeDir: dir })).not.toThrow();
    rmSync(dir, { recursive: true, force: true });
  });

  it('fail-open: missing answer key does not throw', () => {
    const dir = tmpRuntimeDir();
    expect(() => processEvent({
      session_id: 's',
      tool_input: { questions: [{ question: 'X?' }] },
      tool_response: { answers: {} },
    }, { runtimeDir: dir })).not.toThrow();
    rmSync(dir, { recursive: true, force: true });
  });

  it('fail-open: missing session_id does not throw and does not write', () => {
    const dir = tmpRuntimeDir();
    expect(() => processEvent({
      tool_input: { questions: [{ question: 'X?' }] },
      tool_response: { answers: { 'X?': 'git push origin main' } },
    }, { runtimeDir: dir })).not.toThrow();
    rmSync(dir, { recursive: true, force: true });
  });
});

describe('enforce-askuser-answer-parser floor_escape (M6)', () => {
  it('ответ с FLOOR-ESCAPE пишет floor_escape-запись', () => {
    const dir = tmpRuntimeDir();
    const event = {
      session_id: 's1',
      tool_input: { questions: [{ question: 'q' }] },
      tool_response: { answers: { q: 'да FLOOR-ESCAPE: bash:reset --hard' } },
    };
    processEvent(event, { runtimeDir: dir, nowMs: 7 });
    const content = readFileSync(join(dir, 'askuser-decisions-s1.jsonl'), 'utf-8');
    expect(content).toContain('"type":"floor_escape"');
    expect(content).toContain('"action":"bash:reset --hard"');
    rmSync(dir, { recursive: true, force: true });
  });
  it('git-ответ по-прежнему пишет approve_git_operation (без регрессии)', () => {
    const dir = tmpRuntimeDir();
    const event = {
      session_id: 's2',
      tool_input: { questions: [{ question: 'q' }] },
      tool_response: { answers: { q: 'подтверди git push origin main' } },
    };
    processEvent(event, { runtimeDir: dir, nowMs: 9 });
    const content = readFileSync(join(dir, 'askuser-decisions-s2.jsonl'), 'utf-8');
    expect(content).toContain('"type":"approve_git_operation"');
    expect(content).not.toContain('floor_escape');
    rmSync(dir, { recursive: true, force: true });
  });
});