first commit

src/logging/logger.ts

@@ -0,0 +1,20 @@
+import { sanitize } from './sanitize'
+
+export type LogContext = Record<string, unknown>
+type Level = 'debug' | 'info' | 'warn' | 'error'
+
+const weights: Record<Level, number> = { debug: 10, info: 20, warn: 30, error: 40 }
+const configuredLevel = (import.meta.env.VITE_LOG_LEVEL || 'info') as Level
+
+function write(level: Level, message: string, context: LogContext = {}) {
+  if (weights[level] < (weights[configuredLevel] ?? weights.info)) return
+  const entry = sanitize({ timestamp: new Date().toISOString(), level, message, ...context })
+  console[level](entry)
+}
+
+export const logger = {
+  debug: (message: string, context?: LogContext) => write('debug', message, context),
+  info: (message: string, context?: LogContext) => write('info', message, context),
+  warn: (message: string, context?: LogContext) => write('warn', message, context),
+  error: (message: string, context?: LogContext) => write('error', message, context),
+}