101 lines
3.2 KiB
JavaScript
101 lines
3.2 KiB
JavaScript
'use strict'
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const fs = require('fs')
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const path = require('path')
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// 默认值写死在代码里：config.json 只覆盖要改的项。
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// 这样升级新增字段时老配置依然能用，现场也不容易配出半成品。
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const DEFAULTS = {
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server: {
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exe: 'scoreboard.exe',
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args: ['-config', 'config.yaml'],
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host: '127.0.0.1',
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port: 19540,
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autoStart: true,
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healthIntervalMs: 5000,
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restartDelayMs: 3000,
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// 0 表示无限重启；服务端是现场唯一进程，崩了必须拉起来
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maxRestarts: 0,
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// 优雅关闭握手：服务端需实现该回环接口，未实现时回退到进程信号
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shutdownPath: '/api/shutdown',
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shutdownTimeoutMs: 12000,
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// 连续健康这么久后清零崩溃计数，避免历史崩溃耗尽 maxRestarts
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healthyResetMs: 60000
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},
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display: {
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// all-secondary | all | specified
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selection: 'all-secondary',
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displays: [],
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pages: ['standings', 'medals', 'individual', 'results', 'records'],
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pageParam: 'page',
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kiosk: true,
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ignoreMouse: true,
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reloadEveryHours: 24,
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// 服务端迟迟没就绪时的兜底：超时后也把大屏开出来，避免现场一片黑
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waitForServerMs: 20000,
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backgroundColor: '#0b0f1a'
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},
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admin: {
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width: 1040,
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height: 760
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},
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log: {
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maxLines: 2000,
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file: 'logs/console.log',
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maxFileBytes: 4 * 1024 * 1024
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}
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}
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function isPlainObject(value) {
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return value !== null && typeof value === 'object' && !Array.isArray(value)
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}
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function merge(base, override) {
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const out = isPlainObject(base) ? { ...base } : {}
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if (!isPlainObject(override)) return out
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for (const [key, value] of Object.entries(override)) {
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if (value === undefined) continue
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out[key] = isPlainObject(value) && isPlainObject(base[key]) ? merge(base[key], value) : value
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}
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return out
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}
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function readJson(file) {
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try {
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const raw = fs.readFileSync(file, 'utf8')
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return { values: JSON.parse(raw), warning: null }
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} catch (err) {
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if (err.code === 'ENOENT') return { values: {}, warning: `配置文件不存在，使用内置默认值：${file}` }
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return { values: {}, warning: `配置文件无法解析，使用内置默认值：${file}（${err.message}）` }
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}
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}
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function loadConfig(configPath) {
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const { values, warning } = readJson(configPath)
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return {
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path: configPath,
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values: merge(DEFAULTS, values),
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warning
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}
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}
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// 相对路径的 exe 需要按「部署包根目录」理解，而部署包根目录在不同形态下不同：
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// 开发时是 console/ 的上级，打包后是 exe 所在目录。逐个候选位置探测，避免写死。
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function resolveExecutable(exe, configPath) {
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if (!exe) return { path: null, candidates: [] }
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if (path.isAbsolute(exe)) return { path: exe, candidates: [exe] }
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const configDir = path.dirname(configPath)
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const candidates = [
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configDir,
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process.cwd(),
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path.resolve(configDir, '..'),
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path.resolve(configDir, '..', 'dist')
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].map((dir) => path.resolve(dir, exe))
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const found = candidates.find((candidate) => fs.existsSync(candidate))
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return { path: found || candidates[0], candidates: [...new Set(candidates)] }
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}
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module.exports = { DEFAULTS, loadConfig, merge, resolveExecutable }
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