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

import { loadProjectSummaries } from "@/lib/data/board";
import { getServerPb } from "@/lib/pb/server";

vi.mock("@/lib/pb/server", () => ({ getServerPb: vi.fn() }));

describe("home project summaries", () => {
  beforeEach(() => vi.clearAllMocks());

  it("counts open and inbox cards across projects with one read per collection", async () => {
    const projects = [
      { id: "p1", client: "c1", name: "Alpha" },
      { id: "p2", client: "c1", name: "Beta" },
    ];
    const clients = [{ id: "c1", name: "Client" }];
    const columns = [
      { id: "i1", project: "p1", is_inbox: true, is_done: false },
      { id: "d1", project: "p1", is_inbox: false, is_done: true },
      { id: "i2", project: "p2", is_inbox: true, is_done: false },
    ];
    const cards = [
      { project: "p1", column: "i1" },
      { project: "p1", column: "d1" },
      { project: "p2", column: "i2" },
      { project: "p2", column: "i2" },
    ];
    const getFullList = vi.fn(async (name: string) => ({ projects, clients, columns, cards })[name as "projects" | "clients" | "columns" | "cards"]);
    const getFirstListItem = vi.fn(async (filter: string) => {
      const projectId = filter.match(/project = "([^"]+)"/)?.[1];
      const column = columns.find((item) => item.project === projectId && (filter.includes("is_inbox") ? item.is_inbox : item.is_done));
      if (!column) throw new Error("No matching column");
      return column;
    });
    const getList = vi.fn(async (_page: number, _perPage: number, options: { filter: string }) => ({
      totalItems: options.filter.includes('column = "i1"') ? 1
        : options.filter.includes('column = "i2"') ? 2
          : options.filter.includes('project = "p1"') ? 1 : 2,
    }));
    const pb = {
      authStore: { isValid: true },
      collection: vi.fn((name: string) => ({
        getFullList: () => getFullList(name),
        getFirstListItem,
        getList,
      })),
    };
    vi.mocked(getServerPb).mockResolvedValue(pb as never);

    const summaries = await loadProjectSummaries();

    expect(summaries.map((summary) => ({ id: summary.project.id, open: summary.openCards, inbox: summary.inboxCards }))).toEqual([
      { id: "p1", open: 1, inbox: 1 },
      { id: "p2", open: 2, inbox: 2 },
    ]);
    expect(getFullList).toHaveBeenCalledTimes(4);
    expect(getFirstListItem).not.toHaveBeenCalled();
    expect(getList).not.toHaveBeenCalled();
  });
});