/**
 * 起单守卫:不合调用接口契约的输入,**一条工作流都不留**。
 *
 * 用例层测试 —— 端口给的是**真实实现**(内存版),不 mock 内部机制;
 * 类型一律走 schema 解析而来的真值,不用断言绕过(§12.5#4)。
 */
import { describe, expect, it } from 'vitest';
import { processPackageSchema } from '@contracts';
import type { ProcessPackage } from '@contracts';
import { CallInterfaceViolationError } from '../contract.ts';
import { createProcessService } from '../internal/usecase/process-service.ts';
import type { ProcessServiceDeps } from '../internal/usecase/process-service.ts';
import type { WorkflowRecord } from '../port.ts';
import type { NodeInstance } from '../internal/domain/owner-resolution.ts';

/** 最小可发布包:一个开始、一个结束、一条边 —— 起单守卫不需要更复杂的图 */
const PKG: ProcessPackage = processPackageSchema.parse({
  id: 'p1',
  name: '测试包',
  version: 1,
  state: 'published',
  callInterface: {
    input: { type: 'object', required: ['customerCode'], properties: { customerCode: { type: 'string' } } },
    output: { type: 'object' },
  },
  nodes: [
    { kind: 'start', id: 'S', label: '开始' },
    { kind: 'end', id: 'E', label: '结束' },
  ],
  edges: [{ id: 'e1', from: 'S', to: 'E', mapping: [], reopen: false }],
  variables: [],
});

type Harness = {
  readonly service: ReturnType<typeof createProcessService>;
  readonly inserted: WorkflowRecord[];
  readonly published: unknown[];
};

function harness(validationErrors: readonly string[]): Harness {
  const inserted: WorkflowRecord[] = [];
  const published: unknown[] = [];
  const instances: NodeInstance[] = [];

  const deps: ProcessServiceDeps = {
    store: {
      savePackage: async () => undefined,
      getPackage: async () => PKG,
      listPackages: async () => [PKG],
      publishPackage: async () => undefined,
      insertWorkflow: async (record) => {
        inserted.push(record);
      },
      getWorkflow: async (id) => inserted.find((w) => w.id === id),
      listWorkflows: async () => inserted,
      // 内存版要**真的落笔**:用例读回它自己刚写的状态,假实现敷衍就测不出真行为
      updateWorkflow: async (id, patch) => {
        const at = inserted.findIndex((w) => w.id === id);
        if (at < 0) throw new Error(`测试:工作流不存在 ${id}`);
        const next = { ...inserted[at]!, ...patch };
        inserted[at] = next;
        return next;
      },
      listInstances: async () => instances,
      insertInstance: async (_workflowId, instance) => {
        instances.push(instance);
      },
      updateInstance: async () => undefined,
      findInstanceByTask: async () => undefined,
    },
    activities: { faces: async () => new Map() },
    org: { positions: async () => new Set<string>(), candidates: async () => [], workGroupBinding: async () => undefined, isActive: async () => true },
    tasks: { start: async () => ({ id: 'task-1' }) },
    approvals: { raise: async () => ({ id: 'apr-1' }) },
    sfeel: { condition: () => true, expression: () => undefined },
    schemas: {
      validate: () => ({ ok: validationErrors.length === 0, errors: [...validationErrors] }),
    },
    events: {
      publish: async (input) => {
        published.push(input);
      },
    },
    receipts: { notify: async () => undefined },
    clock: { now: () => new Date('2026-07-27T00:00:00.000Z') },
    ids: { next: () => 'wf-1' },
  };

  return { service: createProcessService(deps), inserted, published };
}

describe('起单:凡单必合契约', () => {
  const input = {
    packageId: 'p1',
    subject: '测试单',
    source: { kind: 'registration' as const, ref: 'p1', by: 's1' },
    data: {},
  };

  it('入参不合调用接口 → 抛错,且**不建工作流、不发事件**', async () => {
    const { service, inserted, published } = harness(["must have required property 'customerCode'"]);
    await expect(service.start(input)).rejects.toBeInstanceOf(CallInterfaceViolationError);
    // 校验若放在建单之后,这里就会留下一条永远推不动的在途单,污染在途口径
    expect(inserted).toHaveLength(0);
    expect(published).toHaveLength(0);
  });

  it('错误带上缺了哪个字段 —— 登记人据此补齐,而不是猜', async () => {
    const { service } = harness(["must have required property 'customerCode'"]);
    await expect(service.start(input)).rejects.toThrow(/customerCode/);
  });

  it('入参合契约 → 正常建单,来源记在单上', async () => {
    const { service, inserted } = harness([]);
    const record = await service.start({ ...input, data: { customerCode: 'ACME' } });
    expect(record.id).toBe('wf-1');
    expect(inserted).toHaveLength(1);
    // 凡单必有来源:登记起单的来源就是登记人
    expect(inserted[0]?.source).toEqual({ kind: 'registration', ref: 'p1', by: 's1' });
  });
});