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

import { protectedWriteDeferNote } from "#src/handlers/gates/protected-write";
import type { ProtectedWriteTarget } from "#src/handlers/gates/descriptor";
import type { PermissionCheckResult } from "#src/types";

import { DECIDED_BY_HUMAN } from "#test/helpers/decision-fixtures";
import { makeDescriptor, makeGateRunner } from "#test/helpers/gate-fixtures";
import { makeCheckResult } from "#test/helpers/handler-fixtures";

const MARKER: ProtectedWriteTarget = {
  path: "/vault/auth.json",
  pattern: "/vault/auth.json",
  label: "Pi 凭据",
  extraCount: 0,
};

function protectedDescriptor(check: PermissionCheckResult) {
  return makeDescriptor({
    humanOnly: MARKER,
    sessionApproval: undefined,
    preCheck: check,
  });
}

describe("GateRunner — humanOnly protected writes", () => {
  it("still escalates when the resolved check is a session grant", async () => {
    const { runner, deps } = makeGateRunner();
    const outcome = await runner.run(
      protectedDescriptor(
        makeCheckResult({
          state: "ask",
          source: "session",
          matchedPattern: "/vault/**",
        }),
      ),
      null,
    );

    expect(deps.escalate).toHaveBeenCalledOnce();
    expect(outcome).toEqual({ action: "allow" });
    expect(deps.reporter.writeReviewLog).not.toHaveBeenCalledWith(
      "permission_request.session_approved",
      expect.anything(),
    );
  });

  it("still escalates when yolo mode is enabled", async () => {
    const { runner, deps } = makeGateRunner({ yolo: true });
    await runner.run(
      protectedDescriptor(
        makeCheckResult({ state: "ask", source: "tool", origin: "builtin" }),
      ),
      null,
    );

    expect(deps.escalate).toHaveBeenCalledOnce();
    expect(deps.reporter.writeReviewLog).not.toHaveBeenCalledWith(
      "permission_request.auto_approved",
      expect.anything(),
    );
  });

  it("escalates with humanOnly, the system note, and no session approval", async () => {
    const { runner, deps } = makeGateRunner();
    await runner.run(
      protectedDescriptor(
        makeCheckResult({ state: "ask", source: "tool", origin: "builtin" }),
      ),
      null,
    );

    expect(deps.escalate).toHaveBeenCalledWith(
      expect.objectContaining({
        humanOnly: true,
        deferNotes: [protectedWriteDeferNote(MARKER)],
      }),
    );
    const details = vi.mocked(deps.escalate).mock.calls[0][0];
    expect(details.sessionApproval).toBeUndefined();
  });

  it("records no session grant when the user approves", async () => {
    const { runner, deps } = makeGateRunner({
      escalate: vi.fn().mockResolvedValue({
        approved: true,
        state: "approved_for_session",
        decidedBy: DECIDED_BY_HUMAN,
      }),
    });
    const outcome = await runner.run(
      protectedDescriptor(
        makeCheckResult({ state: "ask", source: "tool", origin: "builtin" }),
      ),
      null,
    );

    // A session-shaped approval cannot be recorded: the descriptor carries no
    // sessionApproval to grant.
    expect(deps.recordSessionApproval).not.toHaveBeenCalled();
    expect(outcome).toEqual({ action: "allow" });
  });
});

describe("protectedWriteDeferNote", () => {
  it("renders the exact system note", () => {
    expect(protectedWriteDeferNote(MARKER)).toEqual({
      origin: "system",
      text: "⚠ 该操作将写入受保护文件：/vault/auth.json（Pi 凭据，匹配 /vault/auth.json）。此类写入不经 AutoReview，必须由你人工确认。",
    });
  });

  it("adds the extra-target count", () => {
    const note = protectedWriteDeferNote({ ...MARKER, extraCount: 2 });
    expect(note.text).toContain("，另有 2 个受保护目标");
  });
});