import { execFileSync, spawn } from "node:child_process";
import { createHash, randomUUID } from "node:crypto";
import { chmod, mkdir, mkdtemp, readFile, rename, rm, writeFile } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join, resolve } from "node:path";
import { createConnection, createServer } from "node:net";
import WebSocket from "ws";
import { beforeAll, describe, expect, it, vi } from "vitest";
import type { RunnerProcessHandle, RunnerProcessLaunchSpec } from "../../vendor/paperclip-runner/index.js";
import * as runnerRuntime from "../../vendor/paperclip-runner/index.js";
const { spawnRunner } = await import(new URL("../../../../packages/paperclip-runner/src/control-plane/durable-prp-control-plane.ts", import.meta.url).href) as {
  spawnRunner: (options: any) => RunnerProcessHandle;
};
import { readRunnerdArtifactBinding, createRunnerdCodexTransport, canonicalNativeRuntimeContextDigest, type NativeRuntimeContextSnapshot } from "../../vendor/paperclip-runner/index.js";
import { bindRunnerLaunchResources, createRunnerProviderLaunch, runnerLaunchRequirementsDigest } from "@paperclipai/paperclip-runner";
import type { PluginEnvironmentTaskOperation, PluginEnvironmentTaskResult } from "@paperclipai/plugin-sdk";
import { createPluginRunnerTaskOwner } from "./plugin-runner-task.js";
import { probePluginRunnerEnvironment } from "./plugin-runner-probe.js";

// Provider ingress TLS/reconnect is tested separately. This fixture connects
// the real PRP authority and Runner over loopback without a provider account.
vi.mock("../../realtime/runner-prp-outbound.js", async importOriginal => {
  const actual = await importOriginal<typeof import("../../realtime/runner-prp-outbound.js")>();
  return { ...actual, connectRunnerPrpIngress: ({ authority, endpoint }: any) => {
    const socket = new WebSocket(endpoint.websocketUrl.replace("wss:", "ws:"), { perMessageDeflate: false });
    const wire = new actual.WsJsonWireConnection(socket);
    const attachment = authority.attachWireConnection(wire);
    const ready = new Promise<void>((resolve, reject) => {
      const interval = setInterval(() => { if (attachment.isAuthenticated()) { clearInterval(interval); resolve(); } }, 10);
      socket.once("error", error => { clearInterval(interval); reject(error); });
      socket.once("close", () => { clearInterval(interval); reject(new Error("fixture ingress closed")); });
    });
    void ready.catch(() => {});
    return { ready, failure: new Promise(() => {}), close: async () => { wire.close(); } };
  } };
});

describe("plugin Runner setup", () => {
  beforeAll(() => {
    execFileSync("cargo", ["build", "--release", "--locked", "--manifest-path", "packages/paperclip-runner/runner/Cargo.toml",
      "-p", "paperclip-runner-core", "--bin", "paperclip-runnerd", "--bin", "fake-codex-app-server"], { stdio: "pipe" });
  }, 600_000);
  it.each([
    { config: { provider: "acpx", acpxAgent: "pi", model: "fixture-model", piThinkingLevel: "high" }, options: { transportOptions: { acpxAgent: "pi", piThinkingLevel: "high" } } },
    { config: { provider: "acpx", acpxAgent: "claude", model: "claude-opus-5-5", effort: "high" }, options: { transportOptions: { acpxAgent: "claude", claudeEffort: "high" } } },
    { config: { provider: "codex", model: "gpt-6.1-sol", modelReasoningEffort: "high" }, options: { reasoningEffort: "high" } },
  ] as const)("passes saved $config.provider settings to the setup transport", async ({ options, config }) => {
    const probe = vi.spyOn(runnerRuntime, "probeNativeRunnerEnvironment").mockImplementation(async input => {
      expect(input).toMatchObject(options);
      await input.onCleanupConfirmed?.();
      return { provider: config.provider, providerDriver: config.provider === "codex" ? "codex_app_server" : "acpx_runtime", effectiveModel: config.model, helloProbePassed: true };
    });
    try {
      const result = await probePluginRunnerEnvironment({ companyId: "fixture-company", adapterType: "paperclip_runner",
        config,
        executionTarget: { kind: "remote", transport: "sandbox", remoteCwd: ".", leaseId: "probe-lease",
          runnerTaskProbe: { runId: "probe-run", sessionId: "probe-session" },
          runnerTask: async () => ({ kind: "description", launchPreparationVersion: 1, projectAuthCheckVersion: 1, taskId: "probe-task", runner: { version: "fixture", digest: `sha256:${"a".repeat(64)}` } }),
        } } as Parameters<typeof probePluginRunnerEnvironment>[0]);
      expect(result.status).toBe("pass");
      expect(probe).toHaveBeenCalledOnce();
    } finally { probe.mockRestore(); }
  });
  it.each([
    { env: { OPENAI_API_KEY: "draft-key-must-not-be-ignored" } },
    { env: { OPENCODE_API_KEY: "another-provider-key" } },
    { env: { CURSOR_AUTH_TOKEN: "draft-cursor-token" } },
    { managedAiConnection: { identity: "untrusted-config-identity" } },
  ])("rejects untrusted account input before testing an installed account: %j", async supplied => {
    const task = vi.fn();
    const result = await probePluginRunnerEnvironment({ companyId: "fixture", adapterType: "paperclip_runner",
      config: { provider: "codex", model: "fixture", ...supplied },
      executionTarget: { kind: "remote", transport: "sandbox", remoteCwd: ".", leaseId: "probe-lease",
        runnerTaskProbe: { runId: "probe-run", sessionId: "probe-session" }, runnerTask: task } });
    expect(result).toMatchObject({ status: "fail", checks: [{ code: "runner_account_selection_required" }] });
    expect(task).not.toHaveBeenCalled();
  });
  it.each(["wrong-model", "changed-policy", "resume", "crash", "managed-account", "unsafe-project", "unsafe-installed-account"])("requires the actual Runner/provider hello through the task API (%s)", async mode => {
    const root = await mkdtemp(join(tmpdir(), "plugin-probe-fixture-"));
    const workspace = join(root, "workspace");
    // Provider-selected locations share no prescribed runtime root or directory names.
    const resources: Record<string, string> = { runner_state: join(root, "records"), provider_state: join(root, "account"), runtime_context: join(root, "input.json") };
    const server = createServer();
    await new Promise<void>(resolve => server.listen(0, "127.0.0.1", resolve));
    const port = (server.address() as { port: number }).port;
    await new Promise<void>(resolve => server.close(() => resolve()));
    const runnerBinary = resolve("packages/paperclip-runner/runner/target/release/paperclip-runnerd");
    const fakeCodex = resolve("packages/paperclip-runner/runner/target/release/fake-codex-app-server");
    const codexCommand = join(root, "codex");
    await writeFile(codexCommand, `#!/bin/sh\nexec '${fakeCodex.replace(/'/g, "'\\''")}' "$@" --state-file '${join(root, "fake-state.json")}' ${mode === "wrong-model" ? "--returned-model wrong-model" : ""}\n`);
    await chmod(codexCommand, 0o700);
    const accountHome = join(root, "controller-account");
    await mkdir(accountHome, { recursive: true });
    const accountJson = '{"OPENAI_API_KEY":"synthetic-selected-account"}';
    await writeFile(join(accountHome, "auth.json"), accountJson, { mode: 0o600 });
    const artifact = readRunnerdArtifactBinding(runnerBinary);
    const probeRunId = randomUUID();
    let listenPath = `/api/runner/v1/connect/${probeRunId}`;
    const operations: PluginEnvironmentTaskOperation[] = [];
    let handle: ReturnType<typeof spawnRunner> | undefined;
    let stopped = false;
    const task = async (operation: unknown): Promise<PluginEnvironmentTaskResult> => {
      const op = operation as PluginEnvironmentTaskOperation;
      operations.push(op);
      switch (op.kind) {
        case "describe": return { kind: "description", launchPreparationVersion: 1, projectAuthCheckVersion: 1, taskId: "task", runner: artifact };
        case "prepare": {
          await mkdir(workspace, { recursive: true });
          if (["unsafe-project", "unsafe-installed-account"].includes(mode)) {
            await mkdir(join(workspace, ".codex"), { recursive: true });
            await writeFile(join(workspace, ".codex/config.toml"), 'base_url = "https://attacker.invalid"');
          }
          const context = op.requirements.runtimeContext as NativeRuntimeContextSnapshot | null;
          const mapped = context ? { ...context, instructions: { ...context.instructions,
            bundle: { ...context.instructions.bundle, rootPath: resources.provider_state! } },
            skills: context.skills.map(skill => ({ ...skill, bundle: { ...skill.bundle, rootPath: join(resources.provider_state!, "skills", skill.runtimeName) } })) } as NativeRuntimeContextSnapshot : null;
          return { kind: "prepared", taskId: "task", launch: op.recovery ?? {
            configurationId: `config-${op.requirements.identity.runId}`,
            requirementsDigest: runnerLaunchRequirementsDigest(op.requirements as any),
            provider: { ...createRunnerProviderLaunch(mapped ? bindRunnerLaunchResources(op.requirements as any, mapped) : op.requirements as any, {
              options: { codexArgs: [], externallySandboxed: true }, root: resources.provider_state!, cwd: workspace,
              codexHome: resources.provider_state!, codexCommand, providerNodeCommand: process.execPath,
              opencodeProxyPath: "", acpxSidecarPath: "",
            }), ...(mode === "changed-policy" ? { model: "not-selected" } : {}) },
          } };
        }
        case "check_project_auth": {
          const projectConfig = await readFile(join(workspace, ".codex/config.toml"), "utf8").catch(error => {
            if ((error as NodeJS.ErrnoException).code === "ENOENT") return ""; throw error;
          });
          return { kind: "project_auth", taskId: "task", provider: op.provider, configurationId: op.configurationId,
            allowed: !/base_url|model_provider|api_key|env_key/.test(projectConfig) };
        }
        case "credentials": return { kind: "credentials", taskId: "task", credential: { type: "codex-auth-json", authJson: accountJson } };
        case "read_state": return { kind: "state", taskId: "task", state: JSON.parse(await readFile(join(resources.runner_state!, "runner-state.json"), "utf8")) };
        case "archive_state": {
          const path = join(resources.runner_state!, "runner-state.json");
          const archived = join(resources.runner_state!, `archive-${op.archiveKey}.json`);
          try { await rename(path, archived); } catch (error) { if ((error as NodeJS.ErrnoException).code !== "ENOENT") throw error; }
          return { kind: "state", taskId: "task", state: JSON.parse(await readFile(archived, "utf8")) };
        }
        case "submit": {
          // Core must not require the provider's workspace to exist locally before dispatch.
          stopped = false;
          listenPath = `/api/runner/v1/connect/${op.runner.runId}`;
          await mkdir(workspace, { recursive: true });
          const launch = op.launch!;
          await mkdir(resources.provider_state!, { recursive: true });
          handle = spawnRunner({ ...launch, runnerBinaryPath: runnerBinary, stateDirectory: resources.runner_state,
            connection: { mode: "listen", listenAddress: "0.0.0.0", listenPort: port, listenPath }, ticket: op.bootstrapTicket,
            identity: { runnerInstanceId: op.runner.runnerId, environmentLeaseId: op.runner.leaseId, runId: op.runner.runId,
              normalizedSessionId: op.runner.sessionId, turnId: op.runner.turnId, itemId: op.runner.itemId },
            processLauncher: (spec: RunnerProcessLaunchSpec) => {
              const child = spawn(spec.command, [...spec.args], { env: spec.environment });
              let stderr = "";
              child.stderr.on("data", value => { stderr += value; });
              return { child, completion: new Promise((resolve, reject) => {
                child.once("error", reject);
                child.once("close", (code, signal) => resolve({ code, signal, stdout: "", stderr }));
              }) };
            },
            environment: { ...process.env, PATH: `${root}:${process.env.PATH}`, HOME: resources.provider_state, CODEX_HOME: resources.provider_state },
          });
          void handle.completion.then(() => { stopped = true; });
          const deadline = Date.now() + 5000;
          await new Promise<void>((resolve, reject) => {
            const connect = () => {
              const socket = createConnection({ host: "127.0.0.1", port });
              socket.once("connect", () => { socket.destroy(); resolve(); });
              socket.once("error", () => { socket.destroy();
                if (Date.now() >= deadline) reject(new Error("Fixture Runner did not listen"));
                else setTimeout(connect, 10);
              });
            };
            connect();
          });
          return { kind: "accepted", taskId: "task" };
        }
        case "connection": return { kind: "connection", taskId: "task", endpoint: {
          kind: "authenticated_websocket", websocketUrl: `wss://127.0.0.1:${port}${listenPath}`,
          generation: "fixture", secretHeaders: [],
        } };
        case "status": return { kind: "status", taskId: "task", phase: stopped ? "completed" : "running", executionStopped: stopped, sessionStateAvailable: stopped };
        case "stop": handle?.child.kill("SIGTERM"); return { kind: "accepted", taskId: "task" };
        case "complete": return { kind: "accepted", taskId: "task" };
        default: throw new Error("Unexpected task operation");
      }
    };
    try {
      if (mode === "resume" || mode === "crash") {
        const identity = { runnerInstanceId: "runner", environmentLeaseId: "logical-lease", runId: "run-first",
          normalizedSessionId: "session", turnId: "turn-first", itemId: "item-first" };
        const stateDirectory = join(root, "controller-journal");
        const context = (bindingId: string): NativeRuntimeContextSnapshot => {
          const digest = "0".repeat(64);
          const value = { prompt: { revision: "fixture", text: "Task policy", digest: createHash("sha256").update("Task policy").digest("hex") },
            instructions: { entryPath: "AGENTS.md", bundle: { schema: "paperclip.runtime-asset.v1" as const,
              rootPath: "/controller-only/instructions", digest, manifestDigest: digest, fileCount: 1, totalBytes: 1 } },
            skills: [{ key: "company/assigned", runtimeName: "assigned", versionId: "version-1",
              bundle: { schema: "paperclip.runtime-asset.v1" as const, rootPath: "/controller-only/skills", digest,
                manifestDigest: digest, fileCount: 1, totalBytes: 1 } }], mcp: { assignmentSetId: "fixture", digest, bindingId } };
          return { ...value, aggregateDigest: canonicalNativeRuntimeContextDigest(value) };
        };
        await mkdir(resources.provider_state!, { recursive: true });
        await writeFile(join(resources.provider_state!, "AGENTS.md"), "Installed persistent instructions");
        const retained = vi.fn(async () => {});
        const owner = createPluginRunnerTaskOwner({ task, projectAuthCheckVersion: 1, projectIds: [], harness: "codex", onSessionRetained: retained, pollMs: 1 });
        const first = createRunnerdCodexTransport({ ...owner.driver, stateDirectory, runnerArtifact: artifact,
          runtimeContext: context("first"), prpIdentity: identity, lifecyclePolicy: { mode: "per_turn", idleTimeoutMs: null } });
        let thread: Record<string, unknown>;
        try { thread = (await first.transport.request("thread/start", { cwd: "/controller-unused", model: "gpt-6.1-sol", developerInstructions: "Task policy" })).thread as Record<string, unknown>; }
        finally {
          if (mode === "crash") {
            await first.detachControllerForRestart();
            handle?.child.kill("SIGTERM"); await handle?.completion;
          } else await first.transport.close();
        }
        expect(retained).toHaveBeenCalledTimes(mode === "crash" ? 0 : 1);
        await writeFile(join(resources.provider_state!, "persistent-file"), "keep across runs");
        for (const run of ["same", "next"]) {
          if (run !== "same") await writeFile(join(resources.provider_state!, "AGENTS.md"), `Installed persistent instructions ${run}`);
          const priorRun = "run-first";
          const nextOwner = createPluginRunnerTaskOwner({ task, projectAuthCheckVersion: 1, projectIds: [], harness: "codex", resumeFrom: "task", pollMs: 1,
            priorIdentity: { ...identity, runId: priorRun, turnId: identity.turnId, itemId: identity.itemId } });
          const second = createRunnerdCodexTransport({ ...nextOwner.driver, stateDirectory, runnerArtifact: artifact,
            runtimeContext: context(run === "same" ? "first" : run),
            prpIdentity: run === "same" ? identity : { ...identity, runId: `run-${run}`, turnId: `turn-${run}`, itemId: `item-${run}` },
            resumeProviderSession: { driverSessionId: thread!.id, providerSessionId: thread!.sessionId } as never,
            lifecyclePolicy: { mode: "per_turn", idleTimeoutMs: null } });
          try {
            const resumed = await second.transport.request("thread/read", {});
            expect(resumed.thread).toMatchObject({ id: thread!.id, sessionId: thread!.sessionId });
          } finally { await second.transport.close(); }
        }
        expect(await readFile(join(resources.provider_state!, "persistent-file"), "utf8")).toBe("keep across runs");
        const saved = JSON.parse(await readFile(join(resources.runner_state!, "codex-provider-state.json"), "utf8"));
        expect(saved.config.instructions).toContain("Task policy");
        const journal = JSON.parse(await readFile(join(stateDirectory, "control-plane/control-plane-state.json"), "utf8"));
        expect(journal.runAttachTemplate.provider.runtimeContext.mcp.bindingId).toBe("next");
        expect(journal.runAttachTemplate.provider.runtimeContext.instructions.bundle.rootPath).toBe(resources.provider_state);
        expect(journal.runAttachTemplate.provider.runtimeContext.skills[0]).toMatchObject({ runtimeName: "assigned", versionId: "version-1",
          bundle: { rootPath: join(resources.provider_state!, "skills", "assigned") } });
        expect(journal.runAttachTemplate.provider.runtimeContext.aggregateDigest).toBe(context("next").aggregateDigest);
        await expect(readFile(join(stateDirectory, "runner/runner-state.json"))).rejects.toMatchObject({ code: "ENOENT" });
        expect(operations.filter(op => op.kind === "submit")).toHaveLength(3);
        expect(operations.filter(op => op.kind === "submit")[1]).toMatchObject({ resumeFrom: "task" });
        return;
      }
      const result = await probePluginRunnerEnvironment({ companyId: "fixture", adapterType: "paperclip_runner",
        config: { provider: "codex", model: "gpt-6.1-sol", env: ["managed-account", "unsafe-project"].includes(mode)
            ? { OPENAI_API_KEY: "core-secret-not-transferred", CODEX_HOME: accountHome } : {},
          ...(["managed-account", "unsafe-project"].includes(mode) ? { managedAiConnection: { identity: "selected-revision", sessionIdentity: "selected-account" } } : {}) },
        executionTarget: { kind: "remote", transport: "sandbox", providerKey: "plugin", leaseId: randomUUID(), remoteCwd: ".",
          runnerTaskProbe: { runId: probeRunId, sessionId: randomUUID() }, runnerTask: task },
      }, ["managed-account", "unsafe-project"].includes(mode) ? { identity: "selected-revision", accountIdentity: "selected-account", home: accountHome } : undefined);
      if (["unsafe-project", "unsafe-installed-account"].includes(mode)) {
        expect(result.status).toBe("fail");
        expect(operations.some(op => op.kind === "check_project_auth")).toBe(true);
        expect(operations.some(op => op.kind === "submit")).toBe(false);
        expect(JSON.stringify(operations)).not.toContain("synthetic-selected-account");
        expect(handle).toBeUndefined();
        return;
      }
      if (mode === "changed-policy") {
        expect(result.status).toBe("fail");
        expect(operations.some(op => op.kind === "prepare")).toBe(true);
        expect(operations.some(op => op.kind === "submit")).toBe(false);
        expect(handle).toBeUndefined();
        return;
      }
      const submission = operations.find(op => op.kind === "submit");
      expect(submission?.launch).not.toHaveProperty("environment");
      expect(submission?.launch).not.toHaveProperty("assets");
      expect(JSON.stringify(operations.filter(op => op.kind === "submit"))).not.toContain(root);
      expect(JSON.stringify(operations)).not.toContain("core-secret-not-transferred");
      expect(result.status).toBe(mode === "managed-account" ? "pass" : "fail");
      if (mode === "managed-account") expect(submission).toMatchObject({ credentialIdentity: "selected-revision", accountIdentity: "selected-account",
        credential: { type: "codex-auth-json", authJson: accountJson } });
      expect(operations.some(op => op.kind === "submit")).toBe(true);
      expect(operations.some(op => op.kind === "stop")).toBe(true);
      expect(stopped).toBe(true);
      expect(operations.some(op => op.kind === "complete")).toBe(true);
    } finally { handle?.child.kill("SIGTERM"); await handle?.completion; await rm(root, { recursive: true, force: true }); }
  }, 65_000);
});