log优化

client/public/logger.js

@@ -0,0 +1,84 @@
+const LOG_LEVELS = {
+    debug: 10,
+    info: 20,
+    warn: 30,
+    error: 40,
+    silent: 50
+};
+
+const STORAGE_KEY = 'video_socket_log_level';
+const DEFAULT_LEVEL = 'warn';
+
+function normalizeLevel(level) {
+    if (!level) {
+        return DEFAULT_LEVEL;
+    }
+
+    const normalized = String(level).toLowerCase();
+    return Object.prototype.hasOwnProperty.call(LOG_LEVELS, normalized)
+        ? normalized
+        : DEFAULT_LEVEL;
+}
+
+function getConfiguredLevel() {
+    try {
+        const queryLevel = new URLSearchParams(window.location.search).get('logLevel');
+        if (queryLevel) {
+            return normalizeLevel(queryLevel);
+        }
+    } catch (_error) {
+    }
+
+    try {
+        const storageLevel = localStorage.getItem(STORAGE_KEY);
+        if (storageLevel) {
+            return normalizeLevel(storageLevel);
+        }
+    } catch (_error) {
+    }
+
+    return DEFAULT_LEVEL;
+}
+
+function shouldLog(level) {
+    return LOG_LEVELS[level] >= LOG_LEVELS[getConfiguredLevel()];
+}
+
+function getConsoleMethod(level) {
+    switch (level) {
+        case 'debug':
+            return console.debug;
+        case 'info':
+            return console.info;
+        case 'warn':
+            return console.warn;
+        case 'error':
+            return console.error;
+        default:
+            return console.log;
+    }
+}
+
+function emit(level, scope, args) {
+    if (!shouldLog(level)) {
+        return;
+    }
+
+    const prefix = scope ? `[${scope}]` : '[app]';
+    getConsoleMethod(level)(prefix, ...args);
+}
+
+export function createLogger(scope) {
+    return {
+        debug: (...args) => emit('debug', scope, args),
+        info: (...args) => emit('info', scope, args),
+        warn: (...args) => emit('warn', scope, args),
+        error: (...args) => emit('error', scope, args)
+    };
+}
+
+export function setBrowserLogLevel(level) {
+    const normalized = normalizeLevel(level);
+    localStorage.setItem(STORAGE_KEY, normalized);
+    return normalized;
+}