From 2c5612fd63f766ce19a9f885e5142b04bcf11604 Mon Sep 17 00:00:00 2001
From: Sebastian <sebasjm@gmail.com>
Date: Tue, 8 Jun 2021 15:56:27 -0300
Subject: moving i18n into taler util

---
 packages/taler-util/src/logging.ts | 100 +++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 packages/taler-util/src/logging.ts

(limited to 'packages/taler-util/src/logging.ts')

diff --git a/packages/taler-util/src/logging.ts b/packages/taler-util/src/logging.ts
new file mode 100644
index 000000000..4f48e24da
--- /dev/null
+++ b/packages/taler-util/src/logging.ts
@@ -0,0 +1,100 @@
+/*
+ This file is part of TALER
+ (C) 2019 GNUnet e.V.
+
+ TALER is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+/**
+ * Check if we are running under nodejs.
+ */
+
+const isNode =
+  typeof process !== "undefined" && typeof process.release !== "undefined" && process.release.name === "node";
+
+function writeNodeLog(
+  message: any,
+  tag: string,
+  level: string,
+  args: any[],
+): void {
+  try {
+    process.stderr.write(`${new Date().toISOString()} ${tag} ${level} `);
+    process.stderr.write(`${message}`);
+    if (args.length != 0) {
+      process.stderr.write(" ");
+      process.stderr.write(JSON.stringify(args, undefined, 2));
+    }
+    process.stderr.write("\n");
+  } catch (e) {
+    // This can happen when we're trying to log something that doesn't want to be
+    // converted to a string.
+    process.stderr.write(`${new Date().toISOString()} (logger) FATAL `);
+    if (e instanceof Error) {
+      process.stderr.write("failed to write log: ");
+      process.stderr.write(e.message);
+    }
+    process.stderr.write("\n");
+  }
+}
+
+/**
+ * Logger that writes to stderr when running under node,
+ * and uses the corresponding console.* method to log in the browser.
+ */
+export class Logger {
+  constructor(private tag: string) {}
+
+  info(message: string, ...args: any[]): void {
+    if (isNode) {
+      writeNodeLog(message, this.tag, "INFO", args);
+    } else {
+      console.info(
+        `${new Date().toISOString()} ${this.tag} INFO ` + message,
+        ...args,
+      );
+    }
+  }
+
+  warn(message: string, ...args: any[]): void {
+    if (isNode) {
+      writeNodeLog(message, this.tag, "WARN", args);
+    } else {
+      console.warn(
+        `${new Date().toISOString()} ${this.tag} INFO ` + message,
+        ...args,
+      );
+    }
+  }
+
+  error(message: string, ...args: any[]): void {
+    if (isNode) {
+      writeNodeLog(message, this.tag, "ERROR", args);
+    } else {
+      console.info(
+        `${new Date().toISOString()} ${this.tag} ERROR ` + message,
+        ...args,
+      );
+    }
+  }
+
+  trace(message: any, ...args: any[]): void {
+    if (isNode) {
+      writeNodeLog(message, this.tag, "TRACE", args);
+    } else {
+      console.info(
+        `${new Date().toISOString()} ${this.tag} TRACE ` + message,
+        ...args,
+      );
+    }
+  }
+}
-- 
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