From 127d4fb8ee7f8b141f9fb2f1a8fda45d350f34fc Mon Sep 17 00:00:00 2001
From: Vidhu Kant Sharma <vidhukant@vidhukant.com>
Date: Sat, 2 Sep 2023 20:12:53 +0530
Subject: first commit

---
 errors/middleware.go | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 errors/middleware.go

(limited to 'errors/middleware.go')

diff --git a/errors/middleware.go b/errors/middleware.go
new file mode 100644
index 0000000..6d2f344
--- /dev/null
+++ b/errors/middleware.go
@@ -0,0 +1,60 @@
+/* openbills - Server for web based Libre Billing Software
+ * Copyright (C) 2023  Vidhu Kant Sharma <vidhukant@vidhukant.com>
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package errors
+
+import (
+	"github.com/gin-gonic/gin"
+	"log"
+)
+
+func writeLog(method, path string, statusCode int, err error) {
+	var prefix string
+	if (statusCode >= 400 && statusCode < 500) || (statusCode >= 200 && statusCode < 300) {
+		prefix = "\x1b[43m\x1b[30m[warn]\x1b[0m"
+	} else {
+		prefix = "\x1b[41m\x1b[30m[err]\x1b[0m"
+	}
+
+	log.Printf("%s \x1b[47m\x1b[30m%s %s\x1b[0m %d %s", prefix, method, path, statusCode, err.Error())
+}
+
+func ErrResponse() gin.HandlerFunc {
+	return func(ctx *gin.Context) {
+		ctx.Next()
+
+		if len(ctx.Errors) > 0 {
+			err := ctx.Errors[0].Err
+
+			status := ctx.Writer.Status()
+			if status == 200 {
+				status = StatusCodeFromErr(err)
+			}
+
+			ctx.JSON(status, gin.H{
+				"error": err.Error(),
+			})
+
+			writeLog(
+				ctx.Request.Method,
+				ctx.FullPath(),
+				status,
+				err,
+			)
+		}
+	}
+}
-- 
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