import { beforeEach, describe, expect, it } from "vitest";
import "./test-helpers/fast-core-tools.js";
import {
  getCallGatewayMock,
  resetSessionsSpawnConfigOverride,
  setSessionsSpawnConfigOverride,
} from "./openclaw-tools.subagents.sessions-spawn.test-harness.js";
import { resetSubagentRegistryForTests } from "./subagent-registry.js";

const callGatewayMock = getCallGatewayMock();

type CreateOpenClawTools = (typeof import("./openclaw-tools.js"))["createOpenClawTools"];
type CreateOpenClawToolsOpts = Parameters<CreateOpenClawTools>[0];

async function getSessionsSpawnTool(opts: CreateOpenClawToolsOpts) {
  // Dynamic import: ensure harness mocks are installed before tool modules load.
  const { createOpenClawTools } = await import("./openclaw-tools.js");
  const tool = createOpenClawTools(opts).find((candidate) => candidate.name === "sessions_spawn");
  if (!tool) {
    throw new Error("missing sessions_spawn tool");
  }
  return tool;
}

describe("openclaw-tools: subagents (sessions_spawn allowlist)", () => {
  beforeEach(() => {
    resetSessionsSpawnConfigOverride();
  });

  it("sessions_spawn only allows same-agent by default", async () => {
    resetSubagentRegistryForTests();
    callGatewayMock.mockReset();

    const tool = await getSessionsSpawnTool({
      agentSessionKey: "main",
      agentChannel: "whatsapp",
    });

    const result = await tool.execute("call6", {
      task: "do thing",
      agentId: "beta",
    });
    expect(result.details).toMatchObject({
      status: "forbidden",
    });
    expect(callGatewayMock).not.toHaveBeenCalled();
  });

  it("sessions_spawn forbids cross-agent spawning when not allowed", async () => {
    resetSubagentRegistryForTests();
    callGatewayMock.mockReset();
    setSessionsSpawnConfigOverride({
      session: {
        mainKey: "main",
        scope: "per-sender",
      },
      agents: {
        list: [
          {
            id: "main",
            subagents: {
              allowAgents: ["alpha"],
            },
          },
        ],
      },
    });

    const tool = await getSessionsSpawnTool({
      agentSessionKey: "main",
      agentChannel: "whatsapp",
    });

    const result = await tool.execute("call9", {
      task: "do thing",
      agentId: "beta",
    });
    expect(result.details).toMatchObject({
      status: "forbidden",
    });
    expect(callGatewayMock).not.toHaveBeenCalled();
  });

  it("sessions_spawn allows cross-agent spawning when configured", async () => {
    resetSubagentRegistryForTests();
    callGatewayMock.mockReset();
    setSessionsSpawnConfigOverride({
      session: {
        mainKey: "main",
        scope: "per-sender",
      },
      agents: {
        list: [
          {
            id: "main",
            subagents: {
              allowAgents: ["beta"],
            },
          },
        ],
      },
    });

    let childSessionKey: string | undefined;
    callGatewayMock.mockImplementation(async (opts: unknown) => {
      const request = opts as { method?: string; params?: unknown };
      if (request.method === "agent") {
        const params = request.params as { sessionKey?: string } | undefined;
        childSessionKey = params?.sessionKey;
        return { runId: "run-1", status: "accepted", acceptedAt: 5000 };
      }
      if (request.method === "agent.wait") {
        return { status: "timeout" };
      }
      return {};
    });

    const tool = await getSessionsSpawnTool({
      agentSessionKey: "main",
      agentChannel: "whatsapp",
    });

    const result = await tool.execute("call7", {
      task: "do thing",
      agentId: "beta",
    });

    expect(result.details).toMatchObject({
      status: "accepted",
      runId: "run-1",
    });
    expect(childSessionKey?.startsWith("agent:beta:subagent:")).toBe(true);
  });

  it("sessions_spawn allows any agent when allowlist is *", async () => {
    resetSubagentRegistryForTests();
    callGatewayMock.mockReset();
    setSessionsSpawnConfigOverride({
      session: {
        mainKey: "main",
        scope: "per-sender",
      },
      agents: {
        list: [
          {
            id: "main",
            subagents: {
              allowAgents: ["*"],
            },
          },
        ],
      },
    });

    let childSessionKey: string | undefined;
    callGatewayMock.mockImplementation(async (opts: unknown) => {
      const request = opts as { method?: string; params?: unknown };
      if (request.method === "agent") {
        const params = request.params as { sessionKey?: string } | undefined;
        childSessionKey = params?.sessionKey;
        return { runId: "run-1", status: "accepted", acceptedAt: 5100 };
      }
      if (request.method === "agent.wait") {
        return { status: "timeout" };
      }
      return {};
    });

    const tool = await getSessionsSpawnTool({
      agentSessionKey: "main",
      agentChannel: "whatsapp",
    });

    const result = await tool.execute("call8", {
      task: "do thing",
      agentId: "beta",
    });

    expect(result.details).toMatchObject({
      status: "accepted",
      runId: "run-1",
    });
    expect(childSessionKey?.startsWith("agent:beta:subagent:")).toBe(true);
  });

  it("sessions_spawn normalizes allowlisted agent ids", async () => {
    resetSubagentRegistryForTests();
    callGatewayMock.mockReset();
    setSessionsSpawnConfigOverride({
      session: {
        mainKey: "main",
        scope: "per-sender",
      },
      agents: {
        list: [
          {
            id: "main",
            subagents: {
              allowAgents: ["Research"],
            },
          },
        ],
      },
    });

    let childSessionKey: string | undefined;
    callGatewayMock.mockImplementation(async (opts: unknown) => {
      const request = opts as { method?: string; params?: unknown };
      if (request.method === "agent") {
        const params = request.params as { sessionKey?: string } | undefined;
        childSessionKey = params?.sessionKey;
        return { runId: "run-1", status: "accepted", acceptedAt: 5200 };
      }
      if (request.method === "agent.wait") {
        return { status: "timeout" };
      }
      return {};
    });

    const tool = await getSessionsSpawnTool({
      agentSessionKey: "main",
      agentChannel: "whatsapp",
    });

    const result = await tool.execute("call10", {
      task: "do thing",
      agentId: "research",
    });

    expect(result.details).toMatchObject({
      status: "accepted",
      runId: "run-1",
    });
    expect(childSessionKey?.startsWith("agent:research:subagent:")).toBe(true);
  });
});