/**
 * 成员组(MemberGroup)集成测试(真实 Postgres)。ADR-0038。
 * 覆盖:嵌套创建 + 闭包维护、解析(直接组 ∪ 活跃祖先)、祖先授权递归传递
 * (3.2)、级联软删 + 实时失效、非管理员 403、成员增删幂等/重加、搜索 breadcrumb。
 * 运行前提:本地 PG(paradigm:paradigm@127.0.0.1:5432/cph_hub_test)且已 migrate。
 */
import { beforeEach, describe, expect, it } from "vitest";
import { prisma, resetDb, DEFAULT_ORG_ID } from "./helpers.js";
import {
  addMember,
  createMemberGroup,
  deleteMemberGroup,
  listMemberGroups,
  listMembers,
  removeMember,
  searchMemberGroups,
  searchUsers,
  updateMemberGroup,
  type MemberGroupServiceDeps,
} from "../../src/database/filelib/memberGroupService.js";
import { createMemberGroupResolver } from "../../src/database/filelib/memberGroupResolver.js";
import {
  createNode,
  getEffectiveRole,
  type FileLibActor,
  type TreeServiceDeps,
} from "../../src/database/filelib/treeService.js";
import { createInMemoryVersionStore } from "../../src/database/filelib/versionStore.js";

const ADMIN: FileLibActor = { userId: "u_admin", isWebsiteAdmin: true };
const ALICE: FileLibActor = { userId: "u_alice", isWebsiteAdmin: false };

function svc(): MemberGroupServiceDeps {
  return { prisma, organizationId: DEFAULT_ORG_ID };
}

/** treeService deps 用真实 MemberGroup 解析器,串起「组授权 → 成员生效」全链路。 */
function treeDeps(): TreeServiceDeps {
  return {
    prisma,
    groupResolver: createMemberGroupResolver(prisma),
    versionStore: createInMemoryVersionStore(),
    organizationId: DEFAULT_ORG_ID,
    storageRoot: "/tmp/member-groups-test",
  };
}

async function seedUsers(): Promise<void> {
  for (const [id, openId] of [["u_admin", "ou_admin"], ["u_alice", "ou_alice"], ["u_bob", "ou_bob"]] as const) {
    await prisma.user.create({ data: { id, feishuOpenId: openId, displayName: id } });
  }
}

/** 建嵌套链 A>B>C,返回三者 id。 */
async function seedChain(): Promise<{ a: string; b: string; c: string }> {
  const a = await createMemberGroup(svc(), ADMIN, { name: "A" });
  const b = await createMemberGroup(svc(), ADMIN, { name: "B", parentId: a.id });
  const c = await createMemberGroup(svc(), ADMIN, { name: "C", parentId: b.id });
  return { a: a.id, b: b.id, c: c.id };
}

beforeEach(async () => {
  await resetDb();
  await seedUsers();
});

describe("memberGroupService · 创建与闭包", () => {
  it("建根 depth0;建子继承祖先闭包,depth 递增", async () => {
    const { a, b, c } = await seedChain();

    // 闭包不变量:C 有 (A,C,2)/(B,C,1)/(C,C,0) 三行。
    const closureC = await prisma.memberGroupClosure.findMany({
      where: { descendantId: c },
      orderBy: { depth: "asc" },
    });
    expect(closureC.map((r) => [r.ancestorId, r.depth])).toEqual([
      [c, 0], [b, 1], [a, 2],
    ]);

    const groups = await listMemberGroups(svc(), ADMIN);
    const byId = new Map(groups.map((g) => [g.id, g]));
    expect(byId.get(a)?.depth).toBe(0);
    expect(byId.get(b)?.depth).toBe(1);
    expect(byId.get(c)?.depth).toBe(2);
    expect(byId.get(b)?.parentId).toBe(a);
  });

  it("父组不存在/已归档 → 404", async () => {
    await expect(createMemberGroup(svc(), ADMIN, { name: "X", parentId: "nope" }))
      .rejects.toMatchObject({ statusCode: 404 });
  });
});

describe("memberGroupResolver · 解析(直接组 ∪ 活跃祖先)", () => {
  it("成员在 C → 解析得 {C,B,A};无所属 → 空", async () => {
    const { a, b, c } = await seedChain();
    await addMember(svc(), ADMIN, c, { userId: "u_alice" });
    const resolver = createMemberGroupResolver(prisma);

    const ids = await resolver.resolveMemberGroupIds("u_alice");
    expect([...ids].sort()).toEqual([a, b, c].sort());
    expect(await resolver.resolveMemberGroupIds("u_bob")).toEqual([]);
  });
});

describe("memberGroupService · 3.2 祖先授权递归传递", () => {
  it("给祖先组 A 授文件夹权限 → C 的成员经 effectiveRole 拿到该权限", async () => {
    const { a, c } = await seedChain();
    await addMember(svc(), ADMIN, c, { userId: "u_alice" });

    // ADMIN 建根文件夹,授权给"祖先组 A"。ALICE 只在 C,靠祖先方向解析命中 A。
    const folder = await createNode(treeDeps(), ADMIN, {
      parentId: null, kind: "FOLDER", name: "共享",
      grants: [{ principalType: "GROUP", principalId: a, role: "EDIT" }],
    });
    expect(await getEffectiveRole(treeDeps(), ALICE, folder.id)).toBe("EDIT");
  });
});

describe("memberGroupService · 改名/改描述(决策6)", () => {
  it("改名不动闭包:depth/parentId/子树关系全保持", async () => {
    const { a, b, c } = await seedChain();
    const before = await prisma.memberGroupClosure.findMany({ orderBy: [{ ancestorId: "asc" }, { descendantId: "asc" }] });

    const updated = await updateMemberGroup(svc(), ADMIN, b, { name: "B2", description: "改后" });
    expect(updated.name).toBe("B2");
    expect(updated.description).toBe("改后");
    expect(updated.parentId).toBe(a);
    expect(updated.depth).toBe(1);

    // 闭包逐行未变 —— rename 不碰层级(ADR-0038 决策6 的核心不变量)。
    const after = await prisma.memberGroupClosure.findMany({ orderBy: [{ ancestorId: "asc" }, { descendantId: "asc" }] });
    expect(after).toEqual(before);
    // C 仍在 B 之下,depth 不变。
    const byId = new Map((await listMemberGroups(svc(), ADMIN)).map((g) => [g.id, g]));
    expect(byId.get(c)?.depth).toBe(2);
    expect(byId.get(c)?.parentId).toBe(b);
  });

  it("空描述清空;字段缺省则不动;两者皆缺 → 400", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G", description: "原描述" });
    expect((await updateMemberGroup(svc(), ADMIN, g.id, { description: "" })).description).toBeNull();

    // 只传 name → 描述保持(此时已是 null)。
    const renamed = await updateMemberGroup(svc(), ADMIN, g.id, { name: "G2" });
    expect(renamed.name).toBe("G2");
    expect(renamed.description).toBeNull();

    await expect(updateMemberGroup(svc(), ADMIN, g.id, {})).rejects.toMatchObject({ statusCode: 400 });
  });

  it("空名 → 400;已归档组 → 404;非管理员 → 403", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });
    await expect(updateMemberGroup(svc(), ADMIN, g.id, { name: "   " })).rejects.toMatchObject({ statusCode: 400 });
    await expect(updateMemberGroup(svc(), ALICE, g.id, { name: "X" })).rejects.toMatchObject({ statusCode: 403 });

    await deleteMemberGroup(svc(), ADMIN, g.id);
    await expect(updateMemberGroup(svc(), ADMIN, g.id, { name: "X" })).rejects.toMatchObject({ statusCode: 404 });
  });

  it("改名写 group.update 审计(含前后值)", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });
    await updateMemberGroup(svc(), ADMIN, g.id, { name: "G2" });
    const rows = await prisma.fileLibAuditLog.findMany({
      where: { organizationId: DEFAULT_ORG_ID },
      orderBy: { seq: "asc" },
    });
    expect(rows.map((e) => e.action)).toEqual(["group.create", "group.update"]);
    expect(rows[1]!.beforeValue).toMatchObject({ name: "G" });
    expect(rows[1]!.afterValue).toMatchObject({ name: "G2" });
  });
});

describe("memberGroupService · 级联软删 + 实时失效", () => {
  it("软删 B → B、C 从 list/解析消失,经此支的权限立即失效", async () => {
    const { a, b, c } = await seedChain();
    await addMember(svc(), ADMIN, c, { userId: "u_alice" });
    const folder = await createNode(treeDeps(), ADMIN, {
      parentId: null, kind: "FOLDER", name: "共享",
      grants: [{ principalType: "GROUP", principalId: a, role: "EDIT" }],
    });
    expect(await getEffectiveRole(treeDeps(), ALICE, folder.id)).toBe("EDIT");

    const { archivedCount } = await deleteMemberGroup(svc(), ADMIN, b);
    expect(archivedCount).toBe(2); // B + C

    const remaining = (await listMemberGroups(svc(), ADMIN)).map((g) => g.id);
    expect(remaining).toEqual([a]);

    // C 已归档 → ALICE 的直接组失效 → 解析空 → 对该文件夹不再可见(D8 → 404)。
    expect(await createMemberGroupResolver(prisma).resolveMemberGroupIds("u_alice")).toEqual([]);
    await expect(getEffectiveRole(treeDeps(), ALICE, folder.id)).rejects.toMatchObject({ statusCode: 404 });
  });
});

describe("memberGroupService · 成员增删", () => {
  it("重复添加 → 409;移除后可重新添加", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });
    await addMember(svc(), ADMIN, g.id, { userId: "u_alice" });
    await expect(addMember(svc(), ADMIN, g.id, { userId: "u_alice" }))
      .rejects.toMatchObject({ statusCode: 409 });

    await removeMember(svc(), ADMIN, g.id, "u_alice");
    expect(await listMembers(svc(), ADMIN, g.id)).toHaveLength(0);

    // 重加(revokedAt 软删允许 @@unique([groupId,userId,revokedAt]) 下的新活跃行)。
    await addMember(svc(), ADMIN, g.id, { userId: "u_alice" });
    expect(await listMembers(svc(), ADMIN, g.id)).toHaveLength(1);
  });

  it("按飞书 openId 解析成员", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });
    const m = await addMember(svc(), ADMIN, g.id, { feishuOpenId: "ou_bob" });
    expect(m.userId).toBe("u_bob");
  });

  it("移除不存在成员 → 404", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });
    await expect(removeMember(svc(), ADMIN, g.id, "u_alice"))
      .rejects.toMatchObject({ statusCode: 404 });
  });
});

describe("memberGroupService · 管理门禁(决策2)", () => {
  it("非管理员调 CRUD/成员 → 403;搜索不限管理员", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });
    await expect(createMemberGroup(svc(), ALICE, { name: "X" })).rejects.toMatchObject({ statusCode: 403 });
    await expect(deleteMemberGroup(svc(), ALICE, g.id)).rejects.toMatchObject({ statusCode: 403 });
    await expect(listMemberGroups(svc(), ALICE)).rejects.toMatchObject({ statusCode: 403 });
    await expect(listMembers(svc(), ALICE, g.id)).rejects.toMatchObject({ statusCode: 403 });
    await expect(addMember(svc(), ALICE, g.id, { userId: "u_bob" })).rejects.toMatchObject({ statusCode: 403 });
    await expect(removeMember(svc(), ALICE, g.id, "u_bob")).rejects.toMatchObject({ statusCode: 403 });

    // 搜索:非管理员可调(授权选择器)。
    const results = await searchMemberGroups(svc(), "G");
    expect(results.map((r) => r.id)).toContain(g.id);
  });
});

describe("memberGroupService · 成员选择器 searchUsers", () => {
  it("按显示名/openId 搜;excludeGroupId 排除已在组成员;仅管理员", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });

    // 空 q 列出全部(3 个 seed 用户)。
    expect((await searchUsers(svc(), ADMIN, "")).length).toBe(3);
    // 按 displayName 命中(seed 的 displayName 即 id)。
    expect((await searchUsers(svc(), ADMIN, "alice")).map((u) => u.userId)).toEqual(["u_alice"]);
    // 按 openId 命中。
    expect((await searchUsers(svc(), ADMIN, "ou_bob")).map((u) => u.userId)).toEqual(["u_bob"]);

    // 已在组的人被排除 —— 避免选中必然 409 的候选。
    await addMember(svc(), ADMIN, g.id, { userId: "u_alice" });
    const ids = (await searchUsers(svc(), ADMIN, "", g.id)).map((u) => u.userId);
    expect(ids).not.toContain("u_alice");
    expect(ids).toContain("u_bob");

    // 移除后重新成为候选(revokedAt 软删)。
    await removeMember(svc(), ADMIN, g.id, "u_alice");
    expect((await searchUsers(svc(), ADMIN, "", g.id)).map((u) => u.userId)).toContain("u_alice");

    await expect(searchUsers(svc(), ALICE, "")).rejects.toMatchObject({ statusCode: 403 });
  });
});

describe("memberGroupService · 成员表字段", () => {
  it("listMembers 返回 openId/avatar/joinedAt(供成员表列展示)", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });
    await addMember(svc(), ADMIN, g.id, { userId: "u_alice" });
    const [m] = await listMembers(svc(), ADMIN, g.id);
    expect(m).toMatchObject({
      userId: "u_alice",
      displayName: "u_alice",
      feishuOpenId: "ou_alice",
      avatarUrl: null,
    });
    expect(m?.joinedAt).toBeInstanceOf(Date);
  });
});

describe("memberGroupService · 搜索 breadcrumb", () => {
  it("breadcrumb 由活跃祖先链按 depth 拼(根在前)", async () => {
    const { c } = await seedChain();
    const results = await searchMemberGroups(svc(), "C");
    const hit = results.find((r) => r.id === c);
    expect(hit?.breadcrumb).toBe("A / B / C");
  });

  it("归档组不出现在搜索(G3)", async () => {
    const { a, b } = await seedChain();
    await deleteMemberGroup(svc(), ADMIN, b); // 归档 B、C
    const ids = (await searchMemberGroups(svc(), "")).map((r) => r.id);
    expect(ids).toContain(a);
    expect(ids).not.toContain(b);
  });
});

describe("memberGroupService · 审计(ADR-0039/决策4)", () => {
  it("建组/加成员/删组写 FileLibAuditLog(挂 silo org)", async () => {
    const g = await createMemberGroup(svc(), ADMIN, { name: "G" });
    await addMember(svc(), ADMIN, g.id, { userId: "u_alice" });
    await removeMember(svc(), ADMIN, g.id, "u_alice");
    await deleteMemberGroup(svc(), ADMIN, g.id);
    const rows = await prisma.fileLibAuditLog.findMany({
      where: { organizationId: DEFAULT_ORG_ID },
      orderBy: { seq: "asc" },
    });
    expect(rows.map((e) => e.action)).toEqual([
      "group.create", "group.member_add", "group.member_remove", "group.delete",
    ]);
    // 组不在文件库树上,objectPath 用 group: 前缀 —— 与节点路径空间隔离,
    // 因此组日志只对网站管理员可见(ADR-0039)。
    expect(rows.every((e) => e.objectPath === `group:${g.id}`)).toBe(true);
    expect(rows.every((e) => e.objectType === "GROUP")).toBe(true);
  });
});