implement crontab guru intention

Author: xepozz

src/main/kotlin/com/github/xepozz/crontab/CrontabIcons.kt

@@ -3,5 +3,9 @@ package com.github.xepozz.crontab
 import com.intellij.openapi.util.IconLoader
 
 object CrontabIcons {
-    val FILE = IconLoader.getIcon("/icons/cron/pluginIcon.svg", CrontabIcons::class.java);
+    @JvmStatic
+    val FILE = IconLoader.getIcon("/icons/cron/pluginIcon.svg", CrontabIcons::class.java)
+
+    @JvmStatic
+    val GURU = IconLoader.getIcon("/icons/guru/icon.svg", CrontabIcons::class.java)
 }

src/main/kotlin/com/github/xepozz/crontab/ide/CrontabGuruUtils.kt

@@ -0,0 +1,12 @@
+package com.github.xepozz.crontab.ide
+
+import com.github.xepozz.crontab.language.psi.CrontabSchedule
+import com.intellij.ide.BrowserUtil
+
+object CrontabGuruUtils {
+    fun openInBrowser(crontabSchedule: CrontabSchedule) {
+        BrowserUtil.browse(
+            "https://crontab.guru/#" + crontabSchedule.text.split(Regex("[\\s\\t]+")).joinToString("_")
+        )
+    }
+}

src/main/kotlin/com/github/xepozz/crontab/ide/actions/CrontabGuruIntention.kt

@@ -0,0 +1,32 @@
+package com.github.xepozz.crontab.ide.actions
+
+import com.github.xepozz.crontab.CrontabIcons
+import com.github.xepozz.crontab.ide.CrontabGuruUtils
+import com.github.xepozz.crontab.language.psi.CrontabPsiTreeUtils
+import com.intellij.codeInsight.intention.PsiElementBaseIntentionAction
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.project.Project
+import com.intellij.openapi.util.Iconable
+import com.intellij.psi.PsiElement
+
+class CrontabGuruIntention : PsiElementBaseIntentionAction(), Iconable {
+    override fun invoke(
+        project: Project,
+        editor: Editor,
+        element: PsiElement
+    ) {
+        val crontabSchedule = CrontabPsiTreeUtils.findCrontabSchedule(element)
+
+        if (crontabSchedule != null) {
+            CrontabGuruUtils.openInBrowser(crontabSchedule)
+        }
+    }
+
+    override fun isAvailable(project: Project, editor: Editor, element: PsiElement) = true
+
+    override fun getFamilyName() = "Crontab intentions"
+
+    override fun getText() = "Open in crontab.guru"
+
+    override fun getIcon(flags: Int) = CrontabIcons.GURU
+}

src/main/kotlin/com/github/xepozz/crontab/ide/actions/CrontabScheduleAction.kt

@@ -0,0 +1,36 @@
+package com.github.xepozz.crontab.ide.actions
+
+import com.github.xepozz.crontab.ide.CrontabGuruUtils
+import com.github.xepozz.crontab.language.CrontabFile
+import com.github.xepozz.crontab.language.psi.CrontabPsiTreeUtils
+import com.intellij.openapi.actionSystem.ActionUpdateThread
+import com.intellij.openapi.actionSystem.AnAction
+import com.intellij.openapi.actionSystem.AnActionEvent
+import com.intellij.openapi.actionSystem.CommonDataKeys
+
+class OpenCrontabGuruAction : AnAction() {
+    override fun actionPerformed(event: AnActionEvent) {
+        val editor = event.getData(CommonDataKeys.EDITOR) ?: return
+        val psiFile = event.getData(CommonDataKeys.PSI_FILE) as? CrontabFile ?: return
+        val psiElement = psiFile.findElementAt(editor.caretModel.offset) ?: return
+
+        val crontabSchedule = CrontabPsiTreeUtils.findCrontabSchedule(psiElement)
+
+        if (crontabSchedule != null) {
+            CrontabGuruUtils.openInBrowser(crontabSchedule)
+        }
+    }
+
+    override fun update(event: AnActionEvent) {
+        println("call update $event")
+        val editor = event.getData(CommonDataKeys.EDITOR) ?: return
+        val psiFile = event.getData(CommonDataKeys.PSI_FILE) as? CrontabFile ?: return
+        val psiElement = psiFile.findElementAt(editor.caretModel.offset) ?: return
+
+        val crontabSchedule = CrontabPsiTreeUtils.findCrontabSchedule(psiElement)
+
+        event.presentation.isEnabledAndVisible = crontabSchedule != null
+    }
+
+    override fun getActionUpdateThread() = ActionUpdateThread.BGT
+}

src/main/kotlin/com/github/xepozz/crontab/ide/actions/OpenCrontabGuruAction.kt

@@ -0,0 +1,12 @@
+package com.github.xepozz.crontab.language.psi
+
+import com.intellij.psi.PsiElement
+import com.intellij.psi.util.PsiTreeUtil
+
+object CrontabPsiTreeUtils {
+    fun findCrontabSchedule(psiElement: PsiElement): CrontabSchedule? =
+        PsiTreeUtil.collectParents(psiElement, CrontabSchedule::class.java, true)
+        { it is CrontabCronExpression }
+            .firstOrNull()
+
+}

src/main/kotlin/com/github/xepozz/crontab/language/psi/CrontabPsiTreeUtils.kt

@@ -36,6 +36,12 @@
         <lang.commenter
                 language="Crontab"
                 implementationClass="com.github.xepozz.crontab.ide.CrontabCommenter"/>
+
+        <intentionAction>
+            <language>Crontab</language>
+            <className>com.github.xepozz.crontab.ide.actions.CrontabGuruIntention</className>
+            <category>Crontab intentions</category>
+        </intentionAction>
     </extensions>
     <actions>
         <action id="Crontab.OpenCrontabGuruAction" popup="false"
@@ -44,6 +50,8 @@
                 description="Opens the schedule in the crontab.guru service"
                 icon="/icons/cron/pluginIcon.svg">
             <add-to-group group-id="EditorPopupMenu" anchor="last"/>
+            <add-to-group group-id="CodeMenu" anchor="last"/>
+            <add-to-group group-id="Floating.CodeToolbar.Extract" anchor="last"/>
         </action>
     </actions>
 </idea-plugin>

src/main/resources/META-INF/plugin.xml

@@ -0,0 +1,5 @@
+<html>
+<body>
+Open the inspected cron schedule expression on the https://crontab.guru service.
+</body>
+</html>