/**
 * 票 38 变异闸：把本票要防的错法逐一注入，确认 t38 真的转红；每次变异后按字节还原并校验哈希。
 *
 * 判据只看退出码（不用管道捕获子进程输出——那是本环境的已知边界，票 37 记过）。
 * 用法：先单跑 t38 看绿，再跑本脚本看每条变异都被抓住。
 * 运行：node .scratch/cockpit-real-data-wayfinding/verify/t38-mutations.mjs
 */
import { spawnSync } from 'node:child_process'
import { readFileSync, writeFileSync } from 'node:fs'
import { createHash } from 'node:crypto'
import { fileURLToPath } from 'node:url'

const ROOT = fileURLToPath(new URL('../../../', import.meta.url))
const GATE = '.scratch/cockpit-real-data-wayfinding/verify/t38-infrastructure-panel-adjustments.mjs'

const MUTATIONS = [
    {
        id: 'M1',
        why: '规模 KPI 回流到基础档案（第 2 条被撤销）→ A2/A6/D1 必须红',
        file: 'src/modules/cockpit/domain/infrastructurePanels.js',
        from: "            { key: 'lengthKm', label: '管线里程', value: valueText(current.lengthKm), unit: 'km' },\n        ]),",
        to: "            { key: 'lengthKm', label: '管线里程', value: valueText(current.lengthKm), unit: 'km' },\n            { key: 'scale', label: '规模', value: current.scale ? codeText(current.scale) : DETAIL_PLACEHOLDER },\n        ]),",
    },
    {
        id: 'M2',
        why: '规模 KPI 回流到总体概览基础设施面板 → A5 必须红',
        file: 'src/modules/cockpit/domain/overviewPanels.js',
        from: "            { key: 'lengthKm', label: '管线里程', value: valueText(regionData && regionData.lengthKm), unit: 'km', wide: true },\n        ]),",
        to: "            { key: 'lengthKm', label: '管线里程', value: valueText(regionData && regionData.lengthKm), unit: 'km', wide: true },\n            { key: 'scale', label: '规模', value: '中型' },\n        ]),",
    },
    {
        id: 'M3',
        why: 'lengthKm 也被顺手删掉（票面明说保留）→ A1b/A2b/A5/D3b 必须红',
        file: 'src/modules/cockpit/domain/infrastructurePanels.js',
        from: "            { key: 'facilityCount', label: '设施总数', value: valueText(current.facilityCount), unit: '处' },\n            { key: 'lengthKm', label: '管线里程', value: valueText(current.lengthKm), unit: 'km' },\n        ]),",
        to: "            { key: 'facilityCount', label: '设施总数', value: valueText(current.facilityCount), unit: '处' },\n        ]),",
    },
    {
        id: 'M4',
        why: '监测点定位退回只换中心的 setCameraFocus（「没反应」的相机根因复发）→ E9/F1 必须红',
        file: 'src/modules/cockpit/stores/infrastructureStore.js',
        from: '        const applied = plan.object.kind === MAP_OBJECT_KIND.MONITORING_POINT\n            ? await flyPoint(plan.object)\n            : focus(target)',
        to: '        const applied = focus(target)',
    },
    {
        id: 'M5',
        why: '相机下发结果不核对（把没飞说成飞了）→ F4/F5 必须红',
        file: 'src/modules/cockpit/stores/infrastructureStore.js',
        from: '        if (applied !== true) {\n            locate.value = { result: LOCATE_RESULT.UNAVAILABLE, pointCode: plan.pointCode, reasonText: LOCATE_TEXT.UNAVAILABLE }\n            return locate.value\n        }',
        to: '        if (false) {\n            locate.value = { result: LOCATE_RESULT.UNAVAILABLE, pointCode: plan.pointCode, reasonText: LOCATE_TEXT.UNAVAILABLE }\n            return locate.value\n        }',
    },
    {
        id: 'M6',
        why: '管理信息主图退回普通 bars（可切换维度的图表块被撤，第 6 条不成立）→ C1/C2 必须红',
        file: 'src/modules/cockpit/domain/infrastructurePanels.js',
        from: "        dimensionBarsBlock('片区 × 行业', rows, {",
        to: "        barsBlock('片区 × 行业', rows, {",
    },
    {
        id: 'M7',
        why: '维度聚合退回逐行直画（城南两行不合并）→ C3/C4 必须红',
        file: 'src/modules/cockpit/domain/panelBlocks.js',
        from: '                entry.count += Number(countOf(row)) || 0\n                for (const [name, source] of Object.entries(extras)) entry[name] += Number(row[source]) || 0\n            }\n            const sorted = sortByCountDesc([...byValue.values()], (row) => row.count)',
        to: '                entry.count = Number(countOf(row)) || 0\n                for (const [name, source] of Object.entries(extras)) entry[name] = Number(row[source]) || 0\n                byValue.set(key, { ...entry })\n            }\n            const sorted = [...byValue.values()]',
    },
    {
        id: 'M8',
        why: 'lengthKm 整行独占**退回按 key 特判**（决定权应从 domain 的 wide 滑回渲染层）→ A3b 必须红',
        file: 'src/modules/cockpit/components/PanelBlocks.vue',
        from: "                        :class=\"{ 'panel-kpi--wide': item.wide === true }\"",
        to: "                        :class=\"{ 'panel-kpi--wide': item.key === 'lengthKm' }\"",
    },
    {
        id: 'M9',
        why: '浮层被重新门控在折叠状态上（「点了没反应」换写法复发）→ E6c 必须红',
        file: 'src/modules/cockpit/CockpitShell.vue',
        from: '<div v-if="locateFeedback" class="cockpit-shell__notice" data-locate-notice>',
        to: '<div v-if="locateFeedback" v-show="statusPanelExpanded" class="cockpit-shell__notice" data-locate-notice>',
    },
    {
        id: 'M10',
        why: '浮层不自动收起（常驻噪音 + 定时器纪律丢失）→ E8 必须红',
        // 锚点含驻留毫秒数（票 38 走查定为 8s）：以后若调时长，这里要同步改。
        file: 'src/modules/cockpit/CockpitShell.vue',
        from: '    locateDismissTimer = window.setTimeout(() => {\n        locateDismissTimer = null\n        infrastructureStore.clearLocate()\n    }, 8000)',
        to: '    locateDismissTimer = null',
    },
    {
        id: 'M11',
        why: '第二轮：关联设备回联被撤（`21119740` 又报「不在已加载范围」）→ B5/B5d 必须红',
        file: 'src/modules/cockpit/domain/mapLocate.js',
        from: '        found = findDeviceOwner(objects, code)',
        to: '        found = null',
    },
    {
        id: 'M12',
        why: '第二轮：概览区域分布又被硬写 null（管线里程再次对不上）→ E13 必须红',
        file: 'src/modules/cockpit/stores/overviewStore.js',
        from: '            regions: regionsLoaded ? regions.data : null,',
        to: '            regions: null,',
    },
    {
        id: 'M13',
        why: '第二轮：wide 标志从 domain 撤掉（独占整行的呈现意图丢失）→ A3c 必须红',
        file: 'src/modules/cockpit/domain/overviewPanels.js',
        from: "unit: 'km', wide: true },",
        to: "unit: 'km' },",
    },
]

const hash = (path) => createHash('sha256').update(readFileSync(path)).digest('hex')

/** 变异源文本按 CRLF 归一后再注入（票 37/43 的教训：PowerShell 写盘是 CRLF，锚点含 \\n 会假未命中）。 */
const normalizeFor = (text, path) => (readFileSync(path, 'utf8').includes('\r\n') ? text.replace(/\n/g, '\r\n') : text)

let failures = 0
for (const m of MUTATIONS) {
    const path = ROOT + m.file.replaceAll('/', process.platform === 'win32' ? '\\' : '/')
    const before = hash(path)
    const source = readFileSync(path, 'utf8')
    const needle = normalizeFor(m.from, path)
    if (!source.includes(needle)) {
        console.log(`BAD  ${m.id}: 变异锚点未命中（源码已变，需更新脚本）`)
        failures += 1
        continue
    }
    writeFileSync(path, source.replace(needle, normalizeFor(m.to, path)))
    const status = spawnSync(process.execPath, [GATE], { cwd: ROOT, stdio: 'ignore' }).status
    writeFileSync(path, source)
    const restored = hash(path) === before
    const caught = status !== 0
    console.log(`${caught && restored ? 'OK  ' : 'BAD '} ${m.id} — 闸门${caught ? '转红' : '**没抓住**'}；还原${restored ? '按字节一致' : '**失败（哈希不符）**'}。${m.why}`)
    if (!caught || !restored) failures += 1
}

console.log('')
console.log(`T38 mutations: ${MUTATIONS.length - failures}/${MUTATIONS.length} caught`)
if (failures) process.exit(1)