feat:#49 added multiple room linkout and mapping for map

services/ical/service/functions/roomMapping.go

@@ -0,0 +1,40 @@
+package functions
+
+import (
+	"regexp"
+	"strings"
+)
+
+func MapRoom(room string, output bool) string {
+	// remove dots from room string
+
+	if output {
+		//replace second point in TR_A1.23.1 -> TR_A1.23-1 with a minus
+		re := regexp.MustCompile(`\b[TR_]+[A-ZÄÖÜ]?[0-9]{1,4}[.][0-9]{1,4}[.]\b`)
+		room = re.ReplaceAllStringFunc(room, func(match string) string {
+			return match[:len(match)-1] + "-" + match[len(match)-1:]
+		})
+		// If the output flag is set, remove all dots from the room string
+		room = strings.ReplaceAll(room, ".", "")
+	} else {
+		// If the output flag is false add a dot for all rooms with regexp TR_A123 -> TR_A1.23
+		re := regexp.MustCompile(`\bTR_+[A-ZÄÖÜ]?[0-9]{1,4}[a-zäöü]?\b`)
+		room = re.ReplaceAllStringFunc(room, func(match string) string {
+			return match[:len(match)-2] + "." + match[len(match)-2:]
+		})
+		room = strings.ReplaceAll(room, "-", ".")
+	}
+
+	// Regular expression pattern to match room identifiers
+	// The pattern looks for strings that start with two uppercase letters, optionally followed by an underscore,
+	// followed by 1 to 3 digits, and ending with "-[A-Z]"
+	re := regexp.MustCompile(`\b[A-ZÄÖÜ]{2}([_]+[A-ZÄÖÜ])?[0-9]{1,4}[a-zäöü]?[-]?[0-9]?-[A-ZÄÖÜ]\b`)
+
+	// Use the ReplaceAllStringFunc to process each match
+	room = re.ReplaceAllStringFunc(room, func(match string) string {
+		// Remove the last two characters (i.e., "-<letter>")
+		return match[:len(match)-2]
+	})
+
+	return room
+}