/**
 * 票 52 变异闸：证明契约测试对「单设备工单处置优先」这条规则**有牙**。
 *
 * 每条变异：按字节把源码改成**规则失效**的形态 → 跑
 * BusinessCockpitDeviceFactResolverTest → 必须转红 → 再按字节还原。
 * 全部转红、且还原后复绿，闸门才算通过。
 *
 * 两个必须踩住的坑（首版都踩了，留档）：
 *  1. 用 `mvn -pl zksy-admin test` 会把 zksy-system 从**本地仓库 jar** 解析，
 *     源码变异根本进不了测试 —— 必须 `-pl zksy-admin -am` 走 reactor 重新编译。
 *  2. Windows 上 `mvn` 是 `mvn.cmd`，`execFileSync('mvn', ...)` 直接 ENOENT；
 *     那样每次"失败"都会被误判成"打红"。这里显式用 shell + mvn.cmd 路径，
 *     并把「构建失败」与「测试计数含非零失败」分开判定。
 *
 * 用法：node .scratch/cockpit-real-data-wayfinding/verify/t52-mutations.mjs
 */
import { execSync } from 'node:child_process'
import { readFileSync, writeFileSync } from 'node:fs'

const BACKEND = 'E:/pipe-ner-server'
const MODULE = 'pipe-network-service'
/**
 * 变异闸覆盖**三个测试类**：判定单源（resolver/facts）、事实透传接缝（分布适配器）、
 * 以及服务层重建设备时的透传（分布控制器）。少了最后一层，
 * 「effectiveDevice 丢事实」这类变异抓不住 —— 首版就是这么漏掉 M7 的。
 */
const TEST = 'BusinessCockpitDeviceFactResolverTest,BusinessCockpitMonitoringDistributionAdapterTest,CockpitMonitoringDistributionControllerTest'
const MVN = 'D:\\Maven\\apache-maven-3.9.15\\bin\\mvn.cmd'

const RESOLVER = `${BACKEND}/${MODULE}/zksy-system/src/main/java/com/zksy/cockpit/point/CockpitMonitoringPointStatusResolver.java`
const FACTS = `${BACKEND}/${MODULE}/zksy-system/src/main/java/com/zksy/cockpit/point/BusinessCockpitDeviceFactResolver.java`
const DIST_ADAPTER = `${BACKEND}/${MODULE}/zksy-system/src/main/java/com/zksy/cockpit/monitoring/BusinessCockpitMonitoringDistributionAdapter.java`
const DIST_SERVICE = `${BACKEND}/${MODULE}/zksy-system/src/main/java/com/zksy/cockpit/monitoring/CockpitMonitoringDistributionService.java`

const read = (p) => readFileSync(p, 'utf8')
const write = (p, s) => writeFileSync(p, s)
const toLf = (s) => s.replace(/\r\n/g, '\n')

const mutations = [
    {
        id: 'M1',
        name: 'deviceStatus 退回「报警恒压工单」（删掉承接分支）',
        file: RESOLVER,
        from: `            return device.isAlarmsCoveredByOpenWorkOrders()
                    ? CockpitMonitoringPointStatus.WORK_ORDER
                    : CockpitMonitoringPointStatus.ALARM;`,
        to: `            return CockpitMonitoringPointStatus.ALARM;`,
    },
    {
        id: 'M2',
        name: '承接判据放宽为「至少一条」（逐条比对改为只看非空）',
        file: FACTS,
        from: `            if (orderIds.size() != unhandled.size()) {
                return false;
            }`,
        to: `            if (orderIds.isEmpty()) {
                return false;
            }`,
    },
    {
        id: 'M3',
        name: '把已结案/已取消也当成承接（isOpenOrderStatus 恒真）',
        file: FACTS,
        from: `        return (orderStatus >= 0 && orderStatus <= 4) || orderStatus == 6;`,
        to: `        return true;`,
    },
    {
        id: 'M4',
        name: '空集视为「全部都有工单」（unhandled.isEmpty 返回 true）',
        file: FACTS,
        from: `            if (unhandled.isEmpty()) {
                return false;
            }`,
        to: `            if (unhandled.isEmpty()) {
                return true;
            }`,
    },
    {
        id: 'M5',
        name: '报警范围放宽为全部历史流水（去掉 alarm_status 过滤）',
        file: FACTS,
        from: `                    .eq(AlarmData::getDeviceCode, deviceCode.trim())
                    .eq(AlarmData::getAlarmStatus, UNHANDLED_ALARM_STATUS)));`,
        to: `                    .eq(AlarmData::getDeviceCode, deviceCode.trim())));`,
    },
    {
        id: 'M6',
        name: '分布适配器不再透传承接事实（快照丢事实 → 出口永远判 ALARM）',
        file: DIST_ADAPTER,
        from: `                    CockpitCreatedAt.format(device.getCreateTime()),
                    fact.isAlarmsCoveredByOpenWorkOrders()));`,
        to: `                    CockpitCreatedAt.format(device.getCreateTime()),
                    false));`,
    },
    {
        id: 'M7',
        name: '分布服务 effectiveDevice 重建时丢承接事实',
        file: DIST_SERVICE,
        from: `                        : "ONLINE".equals(runtime.monitoringState) || "OFFLINE".equals(runtime.monitoringState),
                source.isAlarmsCoveredByOpenWorkOrders());`,
        to: `                        : "ONLINE".equals(runtime.monitoringState) || "OFFLINE".equals(runtime.monitoringState),
                false);`,
    },
]

/** 跑一次测试；返回 { ran, green } —— ran=false 表示构建没跑到测试（不能算证据）。 */
const runTest = () => {
    let out = ''
    try {
        out = execSync(
            `"${MVN}" -o -pl zksy-admin -am test -Dtest=${TEST} -DfailIfNoTests=false`,
            { cwd: `${BACKEND}/${MODULE}`, encoding: 'utf8', stdio: ['ignore', 'pipe', 'pipe'] })
    } catch (error) {
        out = `${error.stdout ?? ''}${error.stderr ?? ''}`
    }
    const summary = out.match(/Tests run: (\d+), Failures: (\d+), Errors: (\d+)/g)
    if (!summary || summary.length === 0) {
        return { ran: false, green: false, out }
    }
    const last = summary[summary.length - 1]
    const [, total, failures, errors] = last.match(/Tests run: (\d+), Failures: (\d+), Errors: (\d+)/)
    return { ran: true, green: Number(failures) === 0 && Number(errors) === 0 && Number(total) > 0, out }
}

const baseline = runTest()
if (!baseline.ran || !baseline.green) {
    console.log('基线不绿，闸门无法判定：先修好源码/测试再跑变异。')
    process.exit(1)
}
console.log('基线绿（未变异时测试全过），开始变异…\n')

let red = 0
let broken = 0
const originals = new Map()

for (const m of mutations) {
    if (!originals.has(m.file)) originals.set(m.file, read(m.file))
    const original = originals.get(m.file)
    const crlf = original.includes('\r\n')
    const norm = toLf(original)
    if (!norm.includes(m.from)) {
        console.log(`SKIP ${m.id} — anchor 未命中（源码已变，需同步变异脚本）：${m.name}`)
        broken += 1
        continue
    }
    write(m.file, crlf ? norm.replace(m.from, m.to).replace(/\n/g, '\r\n') : norm.replace(m.from, m.to))

    const result = runTest()
    if (!result.ran) {
        console.log(`FAIL ${m.id} — 构建没跑到测试，不能算打红：${m.name}`)
        broken += 1
    } else if (!result.green) {
        red += 1
        console.log(`PASS ${m.id} — 变异被打红：${m.name}`)
    } else {
        console.log(`FAIL ${m.id} — 变异未被抓住（测试无牙）：${m.name}`)
    }

    write(m.file, original)
    if (read(m.file) !== original) {
        console.log(`FAIL ${m.id} — 还原后字节不一致`)
        broken += 1
    }
}

const final = runTest()
console.log(`\n变异打红 ${red}/${mutations.length}；还原后复绿：${final.green ? '是' : '否'}；异常 ${broken}`)
process.exit(red === mutations.length && final.green && broken === 0 ? 0 : 1)