import { test } from "node:test";
import assert from "node:assert/strict";
import {
    classifyFlowError,
    describeFlowError,
    flowFailTip,
    flowReloadFailTip,
    flowSubmitFailTip,
    isDefiniteBusinessRejection,
    FLOW_GENERIC_FALLBACK,
    FLOW_NETWORK_FALLBACK,
    FLOW_UNKNOWN_FALLBACK,
} from "../src/utils/flowError";

/**
 * 错误呈现与结果可信度单测（P0-1 附带项 + Codex 终审 F04/F05，2026-10-29）。
 *
 * F05 的口径不是"命中黑名单才挡"，而是"拿不到可信凭据就不放行"：
 * 只有带 bizCode 的业务信封原文才可能进 DOM；HTTP 状态文本、异常/SQL/Token 形态、
 * 以及无法判定来源的裸文本一律换成通用安全提示。
 *
 * F04 的口径是"失败 ≠ 未生效"：服务端明确拒绝与"请求已发出但结果未知"必须分开说。
 */

function bizError(message: string, bizCode = 2): Error {
    return Object.assign(new Error(message), { bizCode });
}

function httpError(message: string, httpStatus = 500): Error {
    return Object.assign(new Error(message), { httpStatus });
}

test("业务信封明确拒绝：具体业务话原样透出，不改写不误导", () => {
    assert.equal(describeFlowError(bizError("流程线不存在：8d07f049")), "流程线不存在：8d07f049");
    assert.equal(describeFlowError(bizError("该任务已被他人办理")), "该任务已被他人办理");
    assert.equal(
        describeFlowError(bizError("该待办缺少流程推进记录，需管理员回填后办理")),
        "该待办缺少流程推进记录，需管理员回填后办理",
    );
    assert.equal(isDefiniteBusinessRejection(bizError("流程线不存在：g1")), true);
});

test("F05：HTTP 500 的响应原文不回显（旧实现把任意非黑名单文本都当业务话）", () => {
    assert.equal(describeFlowError(Object.assign(httpError('private backend text'), { bizCode: 2 })), FLOW_GENERIC_FALLBACK);
    assert.equal(isDefiniteBusinessRejection(Object.assign(httpError('private backend text'), { bizCode: 2 })), false);
    assert.equal(describeFlowError(bizError('private backend text', 999)), FLOW_GENERIC_FALLBACK);
    assert.equal(describeFlowError(bizError('private backend text', 6)), FLOW_GENERIC_FALLBACK);
    for (const raw of ["Internal Server Error", "Bad Gateway", ""]) {
        const out = describeFlowError(httpError(raw));
        assert.equal(out, FLOW_GENERIC_FALLBACK, raw);
        assert.equal(isDefiniteBusinessRejection(httpError(raw)), false);
    }
    // 网关超时属网络口径：说"刷新重试"而不是把 "Gateway Timeout" 原文贴进页面
    assert.equal(describeFlowError(httpError("Gateway Timeout", 504)), FLOW_NETWORK_FALLBACK);
});

test("F05：无法判定来源的裸文本走通用提示，不做黑名单后原样放行", () => {
    // 没有 bizCode 的字符串/Error 不可能是"可信业务文案"
    assert.equal(describeFlowError("Something went wrong at node 7"), FLOW_GENERIC_FALLBACK);
    assert.equal(describeFlowError(new Error("流程线不存在：g1")), FLOW_GENERIC_FALLBACK);
    assert.equal(describeFlowError(undefined), FLOW_GENERIC_FALLBACK);
    assert.equal(describeFlowError(null), FLOW_GENERIC_FALLBACK);
});

test("F05：即使来自业务信封，异常/SQL/令牌形态也不回显", () => {
    const leaks = [
        "java.lang.IllegalStateException: D09 task has no proven activation; audited backfill required",
        "at com.yunhai.flowcenter.service.FlowTaskService.handle(FlowTaskService.java:100)",
        "Caused by: SQLException error code [1064]",
        "refresh token=Bearer abcdef123456",
        "<html><body>500 Internal Server Error</body></html>",
        "内部服务错误",
    ];
    for (const raw of leaks) {
        const out = describeFlowError(bizError(raw, 500));
        assert.equal(out, FLOW_GENERIC_FALLBACK, raw);
        assert.ok(!/java\.|Exception|SQL|Bearer|<html>/i.test(out), raw);
    }
});

test("网络/登录态失败：按网络口径提示，不与业务失败混说", () => {
    assert.equal(describeFlowError("网络错误"), FLOW_NETWORK_FALLBACK);
    assert.equal(describeFlowError(new Error("Failed to fetch")), FLOW_NETWORK_FALLBACK);
    assert.equal(classifyFlowError(httpError("timeout of 20000ms exceeded", 0)).kind, "network");
});

test("F04：明确拒绝说拒绝；超时/丢响应只说结果待确认，不断言未生效", () => {
    const rejected = flowSubmitFailTip("同意", bizError("仅任务办理人本人可办理"));
    assert.ok(rejected.startsWith("同意被拒绝："), rejected);
    assert.ok(rejected.includes("仅任务办理人本人可办理"), rejected);

    const lost = flowSubmitFailTip("同意", new TypeError("network failure"));
    assert.ok(lost.startsWith("同意结果待确认："), lost);
    assert.ok(lost.includes(FLOW_UNKNOWN_FALLBACK) || lost.includes(FLOW_NETWORK_FALLBACK), lost);
    assert.ok(!lost.includes("未生效"), lost);
    assert.ok(!lost.includes("仍是你的待办"), lost);
});

test("F04：办理成功但后续刷新失败 → 说明已成功、只是没刷新，不改口成失败", () => {
    const tip = flowReloadFailTip("同意");
    assert.ok(tip.includes("已提交成功"), tip);
    assert.ok(tip.includes("刷新"), tip);
});

test("只读动作失败的内联提示带动作名，不谎报成功", () => {
    const tip = flowFailTip("催办", bizError("已达催办次数上限（3 次）"));
    assert.ok(tip.startsWith("催办未完成："), tip);
    assert.ok(tip.includes("已达催办次数上限（3 次）"), tip);
    assert.ok(!tip.includes("成功"), tip);
});