/**
 * @file ChatOutline.test.tsx
 * @description The Chat pane's activity panel renders a session's outline the
 * way Claude Desktop does: progress with done/current items, outputs by name
 * with an EXT tag (a click opens that file), and "Used in this session" rows —
 * uploads, files read, memory and skills open their list.
 * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
 */

import { fireEvent, render, screen } from "@testing-library/react";
import { MemoryRouter } from "react-router-dom";
import { describe, expect, it, vi } from "vitest";
import { ChatOutline } from "../ChatOutline";

const outline = {
  progress: [
    { id: "1", subject: "Parse plan", status: "completed" },
    { id: "2", subject: "Build report", status: "in_progress" },
  ],
  outputs: ["/w/out/Progress report.xlsx"],
  files: ["/w/src/a.ts", "/w/src/b.ts", "/w/src/c.ts"],
  uploads: ["/tmp/agenthub-drops-1000/0123456789abcdef-minutes.xlsx"],
  memory: ["/h/.claude/projects/-w/memory/release.md"],
  skills: ["xlsx"],
  mcp: ["vercel_vercel"],
};

describe("ChatOutline", () => {
  it("shows progress, outputs and what the session used", () => {
    const onClose = vi.fn();
    const onOpenFile = vi.fn();
    const onOpenList = vi.fn();
    render(
      <MemoryRouter>
        <ChatOutline
          outline={outline}
          onClose={onClose}
          onOpenFile={onOpenFile}
          onOpenList={onOpenList}
        />
      </MemoryRouter>
    );
    expect(screen.getByText("Parse plan").className).toContain("line-through");
    expect(screen.getByText("Build report").className).not.toContain("line-through");
    // How far the plan is, and which step is being worked on.
    expect(screen.getByText("1/2")).toBeTruthy();
    expect(screen.getByRole("progressbar")).toHaveAttribute("aria-valuenow", "1");
    expect(screen.getByTitle("Build report")).toHaveAttribute("aria-current", "step");

    fireEvent.click(screen.getByRole("button", { name: "XLSX: Progress report" }));
    expect(onOpenFile).toHaveBeenCalledWith("/w/out/Progress report.xlsx");

    // An upload is named without the drop dir's random prefix.
    fireEvent.click(screen.getByTitle("Uploads: minutes.xlsx"));
    expect(onOpenList).toHaveBeenCalledWith("uploads");
    expect(screen.getByText("+1")).toBeTruthy(); // three files read, two named
    fireEvent.click(screen.getByTitle("Memory: release"));
    expect(onOpenList).toHaveBeenCalledWith("memory");
    fireEvent.click(screen.getByTitle("Skills: xlsx"));
    expect(onOpenList).toHaveBeenCalledWith("skills");
    expect(screen.getByText("vercel_vercel")).toBeTruthy();

    fireEvent.click(screen.getByRole("button", { name: "Hide side panel" }));
    expect(onClose).toHaveBeenCalled();
  });

  it("drags its rows into the prompt box", () => {
    render(
      <MemoryRouter>
        <ChatOutline
          outline={outline}
          onClose={() => {}}
          onOpenFile={() => {}}
          onOpenList={() => {}}
        />
      </MemoryRouter>
    );
    const dragged = (el: HTMLElement) => {
      const data: Record<string, string> = {};
      fireEvent.dragStart(el, {
        dataTransfer: { setData: (k: string, v: string) => (data[k] = v) },
      });
      return data;
    };
    const attached = (el: HTMLElement) =>
      JSON.parse(dragged(el)["application/x-agenthub-attach"] ?? "[]") as { path: string }[];
    expect(attached(screen.getByRole("button", { name: "XLSX: Progress report" }))).toEqual([
      { path: "@/w/out/Progress report.xlsx", name: "Progress report.xlsx" },
    ]);
    expect(attached(screen.getByTitle(/a\.ts, /)).map((a) => a.path)).toEqual([
      "@/w/src/a.ts",
      "@/w/src/b.ts",
      "@/w/src/c.ts",
    ]);
    // An upload goes as the composer attaches one: its bare path.
    expect(attached(screen.getByTitle("Uploads: minutes.xlsx"))[0]!.path).toBe(outline.uploads[0]);
    expect(dragged(screen.getByTitle("Skills: xlsx"))["application/x-agenthub-skill"]).toBe("xlsx");
  });

  it("hides progress and the used section when there is none", () => {
    render(
      <MemoryRouter>
        <ChatOutline
          outline={{
            ...outline,
            progress: [],
            files: [],
            uploads: [],
            memory: [],
            skills: [],
            mcp: [],
          }}
          onClose={() => {}}
          onOpenFile={() => {}}
          onOpenList={() => {}}
        />
      </MemoryRouter>
    );
    expect(screen.queryByText("Progress")).toBeNull();
    expect(screen.queryByText("Used in this session")).toBeNull();
    expect(screen.getByRole("button", { name: "Hide side panel" })).toBeTruthy();
  });
});