LivePlugin basic hello replacement

plugin.kts

import com.intellij.codeInspection.*
import com.intellij.openapi.project.Project
import com.intellij.psi.*
import com.intellij.psi.util.elementType
import liveplugin.registerInspection
import liveplugin.show

// depends-on-plugin com.intellij.java

registerInspection(HelloWorldInspection())
if (!isIdeStartup) {
    show("Loaded hello world inspection!<br/>It replaces \"hello\" string literal in Python code with \"Howdy do!\"")
}

class HelloWorldInspection: LocalInspectionTool() {
    override fun buildVisitor(holder: ProblemsHolder, isOnTheFly: Boolean) = object: PsiElementVisitor() {
        override fun visitElement(element: PsiElement) {
            super.visitElement(element)

            if(element.text.contains("hello")) {
                if(element.containingFile.toString().contains("PyFile")) {
                    if(element.elementType.toString().contains("STRING_LITERAL_EXPRESSION")) {
//                        show(element.elementType)
//                        for( c in element.children) {
//                            show(c.elementType)
//                        }
                        holder.registerProblem(element, "Found hello!", HelloWorldQuickFix())
                    }
                }
            }
        }
    }

    override fun getDisplayName() = "Replace \"hello\" with \"Howdy do!\" in Python"
    override fun getShortName() = "HelloWorldInspection"
    override fun getGroupDisplayName() = "Live plugin"
    override fun isEnabledByDefault() = true
}

class HelloWorldQuickFix: LocalQuickFix {
    override fun applyFix(project: Project, descriptor: ProblemDescriptor) {
        val factory = JavaPsiFacade.getInstance(project).elementFactory
        val stringLiteral = factory.createExpressionFromText("\"Howdy do!\"", null)

        descriptor.psiElement.replace(stringLiteral)
    }

    override fun getName() = "Replace with \"Howdy do!\""
    override fun getFamilyName() = name
}