function highlightLine()

in frontend/src/assets/js/editor.js [119:145]
22 lines of code
5 McCabe index (conditional complexity)

        function highlightLine(editor, lineNumber, mappedColors) {
            if (!editor.session.getLine(lineNumber).match(styleMarkerNeedle)) {
                return
            }
            let lineContent = editor.session.getLine(lineNumber).match(styleMarkerNeedle)[0]
            let groupName = lineContent.match(styleMarkerNeedle)[2]
            let startPosition = lineContent.indexOf(lineContent.match(styleMarkerNeedle)[0])
            let endPosition = lineContent.match(styleMarkerNeedle)[0].length
            let range = new ace.Range(lineNumber, startPosition, lineNumber, endPosition)
            if (mappedColors[groupName] !== true) {
                let cssClass = getObjectID(groupName)
                let cssContent = "position: absolute; opacity: 0.3; background-color:" + mappedColors[groupName] + ";"
                addCssClass(cssClass, cssContent)
                mappedColors[groupName] = true
            }
            if (mappedColors[groupName]) {
                editor.session.highlightLines(lineNumber, lineNumber, getObjectID(groupName), false)
                // editor.session.addGutterDecoration(lineNumber, getObjectID(groupName))
            }
            if (editor.session.foldWidgets[lineNumber] === "start") {
                // editor.session.replace(range, "")
                // editor.getSession().foldAll()
            }
            editor.session.replace(range, "")


        }