Hello Typescript!

hydro/lib/logger.ts

@@ -0,0 +1,47 @@
+import yaml from 'js-yaml';
+
+function wrap(func: Function, type: string) {
+    return (...args: any) => {
+        const time = new Date();
+        func(...args);
+        if (global.Hydro.model.message) {
+            try {
+                for (let i = 0; i <= args.length; i++) {
+                    if (args[i] instanceof Error) {
+                        // js-yaml cannot dump [object Error]
+                        args[i] = `${args[i].message}\n${args[i].stack}`;
+                    }
+                }
+                global.Hydro.model.message.send(1, 1, yaml.dump({ time, type, args }, {}));
+            } catch (e) {
+                func(e.message);
+            }
+        }
+    };
+}
+
+class Logger {
+    log: (...args: any[]) => void;
+
+    error: (...args: any[]) => void;
+
+    info: (...args: any[]) => void;
+
+    warn: (...args: any[]) => void;
+
+    debug: (...args: any[]) => void;
+
+    constructor() {
+        this.log = wrap(console.log, 'log');
+        this.error = wrap(console.error, 'error');
+        this.info = wrap(console.info, 'info');
+        this.warn = wrap(console.warn, 'warn');
+        this.debug = wrap(console.debug, 'debug');
+    }
+}
+
+const exp = new Logger();
+
+global.Hydro.lib.logger = exp;
+
+export default exp;