/**
 * coding-tdd WorkflowType tests — TDD pipeline + rejection loops.
 *
 * 小橘 🍊 (NEKO Team)
 */

import { describe, expect, it } from 'bun:test';
import { mkdtempSync, rmSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { createStore, type PulseStore } from '@uncaged/pulse-local';
import { createTddCodingWorkflow } from './coding-tdd.js';
import { createWorkflowRule } from '@uncaged/pulse';
import { END, START } from '@uncaged/pulse';

describe('coding-tdd WorkflowType', () => {
  let store: PulseStore;
  let tmpDir: string;

  function setup() {
    tmpDir = mkdtempSync(join(tmpdir(), 'coding-tdd-'));
    store = createStore({
      eventsDbPath: join(tmpDir, 'test.db'),
      objectsDir: join(tmpDir, 'objects'),
    });
  }

  async function cleanup() {
    try {
      await store?.close();
    } catch {}
    if (tmpDir) rmSync(tmpDir, { recursive: true, force: true });
  }

  async function trigger(topicId: string, title: string, description: string) {
    const hash = await store.putObject(description);
    await store.appendEvent({
      occurredAt: Date.now(),
      kind: 'coding-tdd.__start__',
      key: topicId,
      hash,
      meta: JSON.stringify({ title, repoDir: '/tmp/r' }),
    });
  }

  const ruleOpts = {
    maxTicksPerTopic: 200,
    maxTicksPerWindow: 500,
    cooldownMs: 0,
  } as const;

  it('limits.maxRounds is 25', () => {
    const wf = createTddCodingWorkflow();
    expect(wf.limits?.maxRounds).toBe(25);
  });

  it('exports createTddCodingWorkflow', () => {
    expect(typeof createTddCodingWorkflow).toBe('function');
  });

  it('full happy path via adapter: all roles until END', async () => {
    setup();
    try {
      const wf = createTddCodingWorkflow();
      const rule = createWorkflowRule(wf, store, undefined, ruleOpts);
      await trigger('t1', 'Feature', 'desc');

      const order: string[] = [];
      for (let i = 0; i < 30; i++) {
        const r = await rule.tick();
        if (r.executed.length === 0) break;
        order.push(...r.executed.map((x) => x.role));
      }

      expect(order).toEqual([
        'test-planner',
        'test-reviewer',
        'test-coder',
        'coder',
        'auto-tester',
        'manual-tester',
        'reviewer',
      ]);

      const r = await rule.tick();
      expect(r.executed).toEqual([]);
    } finally {
      await cleanup();
    }
  });

  it('moderator: START → test-planner', () => {
    const wf = createTddCodingWorkflow();
    expect(wf.moderator({ role: START, meta: null }, 'x')).toBe('test-planner');
  });

  it('moderator: test-planner → test-reviewer', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'test-planner',
          meta: {
            testPlan: '# p',
            scenarios: ['a'],
          },
        },
        'x',
      ),
    ).toBe('test-reviewer');
  });

  it('moderator: test-reviewer approved → test-coder', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        { role: 'test-reviewer', meta: { verdict: 'approved', feedback: '' } },
        'x',
      ),
    ).toBe('test-coder');
  });

  it('moderator: test-reviewer rejected → test-planner', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'test-reviewer',
          meta: { verdict: 'rejected', feedback: 'no' },
        },
        'x',
        10,
      ),
    ).toBe('test-planner');
  });

  it('moderator: test-reviewer rejected + emergency → END', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'test-reviewer',
          meta: { verdict: 'rejected', feedback: 'no' },
        },
        'x',
        1,
      ),
    ).toBe(END);
  });

  it('moderator: test-coder → coder', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'test-coder',
          meta: { testFiles: ['a.test.ts'], testCount: 1 },
        },
        'x',
      ),
    ).toBe('coder');
  });

  it('moderator: coder → auto-tester', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'coder',
          meta: {
            filesChanged: ['src/foo.ts'],
            deploymentGuide: 'bun test',
          },
        },
        'x',
      ),
    ).toBe('auto-tester');
  });

  it('moderator: auto-tester pass → manual-tester', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'auto-tester',
          meta: { pass: true, failedTests: [], output: 'ok' },
        },
        'x',
      ),
    ).toBe('manual-tester');
  });

  it('moderator: auto-tester fail → coder', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'auto-tester',
          meta: { pass: false, failedTests: ['x'], output: 'fail' },
        },
        'x',
        10,
      ),
    ).toBe('coder');
  });

  it('moderator: auto-tester fail + emergency → END', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'auto-tester',
          meta: { pass: false, failedTests: ['x'], output: 'fail' },
        },
        'x',
        1,
      ),
    ).toBe(END);
  });

  it('moderator: manual-tester pass → reviewer', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        { role: 'manual-tester', meta: { pass: true, issues: [] } },
        'x',
      ),
    ).toBe('reviewer');
  });

  it('moderator: manual-tester fail → coder', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'manual-tester',
          meta: { pass: false, issues: ['ui broken'] },
        },
        'x',
        10,
      ),
    ).toBe('coder');
  });

  it('moderator: manual-tester fail + emergency → END', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'manual-tester',
          meta: { pass: false, issues: ['ui broken'] },
        },
        'x',
        1,
      ),
    ).toBe(END);
  });

  it('moderator: reviewer approved → END', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'reviewer',
          meta: {
            verdict: 'approved',
            comments: '',
            codeQuality: 'a',
            testQuality: 'a',
          },
        },
        'x',
      ),
    ).toBe(END);
  });

  it('moderator: reviewer approved + emergency → END', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'reviewer',
          meta: {
            verdict: 'approved',
            comments: '',
            codeQuality: 'a',
            testQuality: 'a',
          },
        },
        'x',
        1,
      ),
    ).toBe(END);
  });

  it('moderator: reviewer rejected → coder', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'reviewer',
          meta: {
            verdict: 'rejected',
            comments: 'fix',
            codeQuality: 'c',
            testQuality: 'b',
          },
        },
        'x',
        10,
      ),
    ).toBe('coder');
  });

  it('moderator: reviewer rejected + emergency → END', () => {
    const wf = createTddCodingWorkflow();
    expect(
      wf.moderator(
        {
          role: 'reviewer',
          meta: {
            verdict: 'rejected',
            comments: 'fix',
            codeQuality: 'c',
            testQuality: 'b',
          },
        },
        'x',
        1,
      ),
    ).toBe(END);
  });

  it('loop: test-reviewer rejects once then approves', async () => {
    setup();
    try {
      let trRound = 0;
      const wf = createTddCodingWorkflow({
        testReviewerFn: async () => {
          trRound++;
          return {
            content: `review ${trRound}`,
            meta:
              trRound === 1
                ? { verdict: 'rejected' as const, feedback: 'add cases' }
                : { verdict: 'approved' as const, feedback: 'ok' },
          };
        },
      });
      const rule = createWorkflowRule(wf, store, undefined, ruleOpts);
      await trigger('loop-tr', 'L', 'd');

      const roles: string[] = [];
      for (let i = 0; i < 40; i++) {
        const r = await rule.tick();
        if (r.executed.length === 0) break;
        roles.push(...r.executed.map((x) => x.role));
      }

      expect(roles.slice(0, 4)).toEqual([
        'test-planner',
        'test-reviewer',
        'test-planner',
        'test-reviewer',
      ]);
      expect(roles).toContain('test-coder');
    } finally {
      await cleanup();
    }
  });

  it('loop: auto-tester fails once then passes', async () => {
    setup();
    try {
      let autoRound = 0;
      const wf = createTddCodingWorkflow({
        autoTesterFn: async () => {
          autoRound++;
          return {
            content: 'out',
            meta:
              autoRound === 1
                ? {
                    pass: false,
                    failedTests: ['t1'],
                    output: 'fail',
                  }
                : {
                    pass: true,
                    failedTests: [],
                    output: 'ok',
                  },
          };
        },
      });
      const rule = createWorkflowRule(wf, store, undefined, ruleOpts);
      await trigger('loop-auto', 'L', 'd');

      const roles: string[] = [];
      for (let i = 0; i < 40; i++) {
        const r = await rule.tick();
        if (r.executed.length === 0) break;
        roles.push(...r.executed.map((x) => x.role));
      }

      const firstCoder = roles.indexOf('coder');
      const firstAuto = roles.indexOf('auto-tester');
      const secondCoder = roles.indexOf('coder', firstCoder + 1);
      expect(firstAuto).toBeGreaterThan(firstCoder);
      expect(secondCoder).toBeGreaterThan(firstAuto);
    } finally {
      await cleanup();
    }
  });

  it('loop: manual-tester fails once then passes', async () => {
    setup();
    try {
      let manRound = 0;
      const wf = createTddCodingWorkflow({
        manualTesterFn: async () => {
          manRound++;
          return {
            content: 'notes',
            meta:
              manRound === 1
                ? { pass: false, issues: ['bug'] }
                : { pass: true, issues: [] },
          };
        },
      });
      const rule = createWorkflowRule(wf, store, undefined, ruleOpts);
      await trigger('loop-man', 'L', 'd');

      const roles: string[] = [];
      for (let i = 0; i < 40; i++) {
        const r = await rule.tick();
        if (r.executed.length === 0) break;
        roles.push(...r.executed.map((x) => x.role));
      }

      const idxReviewer1 = roles.indexOf('reviewer');
      expect(idxReviewer1).toBeGreaterThan(-1);
      expect(roles.lastIndexOf('coder')).toBeGreaterThan(
        roles.indexOf('manual-tester'),
      );
    } finally {
      await cleanup();
    }
  });

  it('loop: reviewer rejects once then approves', async () => {
    setup();
    try {
      let revRound = 0;
      const wf = createTddCodingWorkflow({
        reviewerFn: async () => {
          revRound++;
          return {
            content: `rev ${revRound}`,
            meta:
              revRound === 1
                ? {
                    verdict: 'rejected' as const,
                    comments: 'fix',
                    codeQuality: 'c',
                    testQuality: 'c',
                  }
                : {
                    verdict: 'approved' as const,
                    comments: 'ok',
                    codeQuality: 'a',
                    testQuality: 'a',
                  },
          };
        },
      });
      const rule = createWorkflowRule(wf, store, undefined, ruleOpts);
      await trigger('loop-rev', 'L', 'd');

      const roles: string[] = [];
      for (let i = 0; i < 40; i++) {
        const r = await rule.tick();
        if (r.executed.length === 0) break;
        roles.push(...r.executed.map((x) => x.role));
      }

      expect(roles.filter((r) => r === 'reviewer').length).toBe(2);
    } finally {
      await cleanup();
    }
  });
});