import { beforeEach, describe, expect, it, vi } from "vitest";

const mocks = vi.hoisted(() => ({
  loadSettings: vi.fn(),
  setMember: vi.fn(),
  removeMember: vi.fn(),
  setPrivacy: vi.fn(),
  leave: vi.fn(),
  archive: vi.fn(),
  projectFindFirst: vi.fn(),
}));

vi.mock("@hivegrid/chat/channel-settings.server", () => ({ loadChatChannelSettings: mocks.loadSettings }));
vi.mock("@hivegrid/chat/lifecycle.server", () => ({
  setChatChannelMember: mocks.setMember,
  removeChatChannelMember: mocks.removeMember,
  setGroupChatPrivacy: mocks.setPrivacy,
  leaveGroupChat: mocks.leave,
  archiveChatChannel: mocks.archive,
}));
vi.mock("~/utils/db/.server/tenantRls.server", () => ({
  withTenantRLS: vi.fn((_tenantId: string, operation: (tx: unknown) => Promise<unknown>) =>
    operation({ projekt: { findFirst: mocks.projectFindFirst } })
  ),
}));

import {
  addChatChannelMember,
  archiveChatChannel,
  changeChatChannelMemberRole,
  changeChatChannelPrivacy,
  leaveChatChannel,
  loadChatChannelSettingsPage,
  removeChatChannelMember,
} from "./ChatChannelSettingsService.server";

const context = {
  tenantId: "tenant_1",
  userId: "user_current",
  tenantUserId: "tenant_user_current",
  permissions: ["chat.read_own_channels"],
  hasModule: true as const,
};
const labels = {
  directMessage: "Direktnachricht",
  unnamedGroup: "Gruppe",
  unnamedProject: "Projekt",
  unknownProjectStage: "Unbekannte Phase",
};

function profile(userId: string, displayName: string) {
  return { userId, displayName, email: `${userId}@example.test`, avatarUrl: null };
}

function settingsRecord(kind: "group" | "dm" | "project" = "group") {
  return {
    channel: {
      id: "chat_1",
      kind,
      name: kind === "group" ? "Montage" : null,
      description: null,
      privacy: kind === "group" ? ("private" as const) : null,
      archivedAtIso: null,
      projectId: kind === "project" ? "project_1" : null,
    },
    members: [
      {
        ...profile("user_current", "Raffael Sheikh"),
        roleInChat: "admin" as const,
        joinedAtIso: "2026-07-15T10:00:00.000Z",
        joinedViaUserId: null,
        writeRevokedAtIso: null,
        provenance: {
          isManualMember: kind !== "dm",
          manualRoleInChat: kind !== "dm" ? ("admin" as const) : null,
          isProjectManaged: kind === "project",
          projectRoleInChat: kind === "project" ? ("admin" as const) : null,
          isGroupManaged: false,
        },
      },
      {
        ...profile("user_peer", "Mara Klein"),
        roleInChat: "member" as const,
        joinedAtIso: "2026-07-15T10:00:00.000Z",
        joinedViaUserId: null,
        writeRevokedAtIso: null,
        provenance: {
          isManualMember: kind === "group",
          manualRoleInChat: kind === "group" ? ("member" as const) : null,
          isProjectManaged: kind === "project",
          projectRoleInChat: kind === "project" ? ("member" as const) : null,
          isGroupManaged: false,
        },
      },
    ],
    candidateUsers: kind === "group" ? [profile("user_candidate", "Ada Lovelace")] : [],
    capabilities: {
      canManageMembers: kind === "group",
      canManageAdmins: kind === "group",
      canChangePrivacy: kind === "group",
      canManageManualGuests: kind === "project",
      canArchive: kind !== "dm",
      canLeave: false,
      isReadOnly: kind !== "group",
    },
  };
}

describe("AK-P15b chat channel settings service", () => {
  beforeEach(() => {
    vi.clearAllMocks();
    mocks.loadSettings.mockResolvedValue(settingsRecord());
  });

  it("maps the RLS-scoped group record to the pure settings VM", async () => {
    const vm = await loadChatChannelSettingsPage({ context, tenantSlug: "demo", chatId: "chat_1", labels });

    expect(mocks.loadSettings).toHaveBeenCalledWith({
      tenantId: "tenant_1",
      userId: "user_current",
      permissions: context.permissions,
      chatId: "chat_1",
    });
    expect(vm.status).toBe("ready");
    if (vm.status !== "ready") throw new Error("fixture must be ready");
    expect(vm.data.channel).toMatchObject({ title: "Montage", privacy: "private", isArchived: false });
    expect(vm.data.members.map(({ displayName }) => displayName)).toEqual(["Raffael Sheikh", "Mara Klein"]);
    expect(vm.data.candidateUsers.map(({ displayName }) => displayName)).toEqual(["Ada Lovelace"]);
  });

  it("resolves project metadata inside tenant RLS and keeps project membership read-only", async () => {
    mocks.loadSettings.mockResolvedValue(settingsRecord("project"));
    mocks.projectFindFirst.mockResolvedValue({
      id: "project_1",
      projektNummer: "P-42",
      projektname: "Wärmepumpe Klein",
      stage: { name: "Montage" },
    });

    const vm = await loadChatChannelSettingsPage({ context, tenantSlug: "demo", chatId: "chat_1", labels });

    expect(mocks.projectFindFirst).toHaveBeenCalledWith(expect.objectContaining({ where: { tenantId: "tenant_1", id: "project_1" } }));
    expect(vm.status).toBe("ready");
    if (vm.status !== "ready") throw new Error("fixture must be ready");
    expect(vm.data.channel.project).toEqual({
      id: "project_1",
      number: "P-42",
      label: "Wärmepumpe Klein",
      stageLabel: "Montage",
      href: "/demo/projects/project_1",
    });
    expect(vm.data.infoKey).toBe("chat.channelSettings.project.managedExternally");
    expect(vm.data.permissions).toMatchObject({ canManageManualGuests: true, canArchive: true });
  });

  it("delegates group settings mutations with tenant context and stable request ids", async () => {
    const base = { context, chatId: "chat_1", requestId: "request_1" };
    await addChatChannelMember({ ...base, memberUserId: "user_new" });
    await changeChatChannelMemberRole({ ...base, memberUserId: "user_new", roleInChat: "admin" });
    await removeChatChannelMember({ ...base, memberUserId: "user_new" });
    await changeChatChannelPrivacy({ ...base, privacy: "public" });
    await leaveChatChannel(base);
    await archiveChatChannel(base);

    const repositoryContext = { tenantId: "tenant_1", userId: "user_current", permissions: context.permissions };
    expect(mocks.setMember).toHaveBeenNthCalledWith(1, { ...repositoryContext, chatId: "chat_1", requestId: "request_1", memberUserId: "user_new", roleInChat: "member" });
    expect(mocks.setMember).toHaveBeenNthCalledWith(2, { ...repositoryContext, chatId: "chat_1", requestId: "request_1", memberUserId: "user_new", roleInChat: "admin" });
    expect(mocks.removeMember).toHaveBeenCalledWith({ ...repositoryContext, chatId: "chat_1", requestId: "request_1", memberUserId: "user_new" });
    expect(mocks.setPrivacy).toHaveBeenCalledWith({ ...repositoryContext, chatId: "chat_1", requestId: "request_1", isPrivate: false });
    expect(mocks.leave).toHaveBeenCalledWith({ ...repositoryContext, chatId: "chat_1", requestId: "request_1" });
    expect(mocks.archive).toHaveBeenCalledWith({ ...repositoryContext, chatId: "chat_1", requestId: "request_1" });
  });
});