import { test } from 'node:test';
import assert from 'node:assert/strict';
import { Store, StoreError } from '../src/store/index.js';

function freshStore(): Store {
  return new Store(':memory:');
}

// ---------- patchProject ----------

test('patchProject：更新 autonomy/concurrency/verifyCmd/model/status', () => {
  const s = freshStore();
  const p = s.createProject({ name: 'pp', repoPath: '/tmp/pp-' + Math.random() });
  assert.equal(p.lastSyncAt, null);

  const updated = s.patchProject(p.id, {
    autonomy: 'auto-easy', concurrency: 3, verifyCmd: 'npm test', model: 'sonnet', status: 'paused',
  });
  assert.equal(updated.autonomy, 'auto-easy');
  assert.equal(updated.concurrency, 3);
  assert.equal(updated.verifyCmd, 'npm test');
  assert.equal(updated.model, 'sonnet');
  assert.equal(updated.status, 'paused');

  // 部分字段更新不影响其余字段；null 清空
  const again = s.patchProject(p.id, { verifyCmd: null, status: 'active' });
  assert.equal(again.verifyCmd, null);
  assert.equal(again.autonomy, 'auto-easy');
  assert.equal(again.status, 'active');
  s.close();
});

test('patchProject：非法值被拒（autonomy/concurrency/status）', () => {
  const s = freshStore();
  const p = s.createProject({ name: 'pv', repoPath: '/tmp/pv-' + Math.random() });
  assert.throws(() => s.patchProject(p.id, { autonomy: 'yolo' as never }), StoreError);
  assert.throws(() => s.patchProject(p.id, { concurrency: 0 }), StoreError);
  assert.throws(() => s.patchProject(p.id, { concurrency: 1.5 }), StoreError);
  assert.throws(() => s.patchProject(p.id, { status: 'stopped' as never }), StoreError);
  assert.throws(() => s.patchProject('prj_nope', { concurrency: 1 }), StoreError);
  s.close();
});

// ---------- patchTask ----------

test('patchTask：title/priority 更新', () => {
  const s = freshStore();
  const p = s.createProject({ name: 'pt', repoPath: '/tmp/pt-' + Math.random() });
  const t = s.createTask({ projectId: p.id, title: '原标题', complexity: 'easy' });
  assert.equal(t.priority, 1);                 // 默认 P1（中）
  const u = s.patchTask(t.id, { title: '新标题', priority: 0 });
  assert.equal(u.title, '新标题');
  assert.equal(u.priority, 0);                 // P0 最高
  assert.equal(u.status, 'ready');             // 未动 complexity 不重置状态
  assert.throws(() => s.patchTask(t.id, { title: '  ' }), StoreError);
  assert.throws(() => s.patchTask(t.id, { priority: 5 }), StoreError);   // 超出 0..2
  assert.throws(() => s.patchTask(t.id, { priority: -1 }), StoreError);
  s.close();
});

test('patchTask：complexity 修改 → status 重置为新初始态 + status.changed 事件', () => {
  const s = freshStore();
  const events: Array<{ type: string; payload: Record<string, unknown> }> = [];
  s.subscribe((e) => events.push({ type: e.type, payload: e.payload }));
  const p = s.createProject({ name: 'pc', repoPath: '/tmp/pc-' + Math.random() });

  // easy(ready) → hard：重置为 analyzing
  const t = s.createTask({ projectId: p.id, title: 'x', complexity: 'easy' });
  const u = s.patchTask(t.id, { complexity: 'hard' });
  assert.equal(u.complexity, 'hard');
  assert.equal(u.status, 'analyzing');
  const sc = events.filter((e) => e.type === 'status.changed').at(-1);
  assert.equal(sc?.payload.from, 'ready');
  assert.equal(sc?.payload.to, 'analyzing');

  // hard(analyzing) → medium：重置为 speccing
  const u2 = s.patchTask(t.id, { complexity: 'medium' });
  assert.equal(u2.status, 'speccing');

  // 同值修改 = no-op，不重置
  s.transition(t.id, 'spec_review');
  const u3 = s.patchTask(t.id, { complexity: 'medium' });
  assert.equal(u3.status, 'spec_review');

  // spec_review 在允许列表内：可改
  const u4 = s.patchTask(t.id, { complexity: 'easy' });
  assert.equal(u4.status, 'ready');
  s.close();
});

test('patchTask：执行链路状态下改 complexity 被拒（StoreError → API 400）', () => {
  const s = freshStore();
  const p = s.createProject({ name: 'pr', repoPath: '/tmp/pr-' + Math.random() });
  const t = s.createTask({ projectId: p.id, title: 'y', complexity: 'easy' }); // ready
  s.transition(t.id, 'queued');
  assert.throws(
    () => s.patchTask(t.id, { complexity: 'hard' }),
    (e: unknown) => e instanceof StoreError && (e as Error).message.includes('不允许修改复杂度'),
  );
  // queued 下 title 仍可改
  assert.equal(s.patchTask(t.id, { title: 'z' }).title, 'z');

  // done（终态）同样拒绝
  s.transition(t.id, 'executing');
  s.transition(t.id, 'exec_review');
  s.decide(t.id, 'accept', 'user');
  assert.throws(() => s.patchTask(t.id, { complexity: 'medium' }), StoreError);
  s.close();
});