feat: impl'd describe for resources (redhat-developer#553)

Signed-off-by: Andre Dietisheim <[email protected]>

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/editor/describe/DescribeDocument.kt

@@ -0,0 +1,38 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package com.redhat.devtools.intellij.kubernetes.editor.describe
+
+abstract class DescribeDocument {
+
+	protected val paragraphs = mutableListOf<Paragraph>()
+
+	fun add(paragraph: Paragraph): DescribeDocument {
+		paragraphs.add(paragraph)
+		return this
+	}
+
+	fun add(title: String, value: String): DescribeDocument {
+		paragraphs.add(Paragraph(title, value));
+		return this
+	}
+
+	abstract fun toText(): String
+
+	class Paragraph(val title: String, val value: String? = null) {
+
+		val children = mutableListOf<Paragraph>()
+
+		fun add(paragraph: Paragraph): Paragraph {
+			children.add(paragraph)
+			return this
+		}
+	}
+}

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/editor/describe/YAMLDescribeDocument.kt

@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package com.redhat.devtools.intellij.kubernetes.editor.describe
+
+import org.yaml.snakeyaml.DumperOptions
+import org.yaml.snakeyaml.Yaml
+
+
+class YAMLDescribeDocument: DescribeDocument() {
+
+	private val yaml = let {
+		val options = DumperOptions().apply {
+			defaultFlowStyle = DumperOptions.FlowStyle.BLOCK
+		}
+		Yaml(options)
+	}
+
+	override fun toText(): String {
+		return yaml.dump(toMap(paragraphs))
+	}
+
+	/*
+	 * Turning objects into map because I couldn't convince snakeyaml to format like I wanted by using native configurations.
+	 */
+	private fun toMap(paragraphs: List<Paragraph>): Map<String, Any?> {
+		return paragraphs.associate { paragraph ->
+			if (paragraph.children.isEmpty()) {
+				paragraph.title to paragraph.value
+			} else {
+				paragraph.title to toMap(paragraph.children)
+			}
+		}
+	}
+}

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/model/AllContexts.kt

@@ -109,8 +109,12 @@ open class AllContexts(
 		get() {
 			lock.write {
 				if (_all.isEmpty()) {
-					val all = createContexts(client.get(), client.get()?.config)
+					try {
+						val all = createContexts(client.get(), client.get()?.config)
 						_all.addAll(all)
+					} catch (e: Exception) {
+						//
+					}
 				}
 				return _all
 			}

src/test/kotlin/com/redhat/devtools/intellij/kubernetes/editor/describe/YAMLDescribeDocumentTest.kt

@@ -0,0 +1,69 @@
+package com.redhat.devtools.intellij.kubernetes.editor.describe
+
+import com.redhat.devtools.intellij.kubernetes.editor.describe.DescribeDocument.*
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.Test
+
+class YAMLDescribeDocumentTest {
+
+	@Test
+	fun `toText should return empty String if document has no paragraphs`() {
+		// given
+		val document = YAMLDescribeDocument()
+		// when
+		val text = document.toText()
+		// then
+		assertThat(text).isEqualTo("")
+	}
+
+	@Test
+	fun `toText should return title and value if document has 1 paragraph`() {
+		// given
+		val document = YAMLDescribeDocument()
+		document.add("jedi", "luke")
+		// when
+		val text = document.toText()
+		// then
+		assertThat(text).isEqualTo("jedi: luke\n")
+	}
+
+	@Test
+	fun `toText should return title, subtitle and values if document has 1 paragraph with a nested paragraph`() {
+		// given
+		val document = YAMLDescribeDocument()
+		val jedis = Paragraph("jedis")
+			.add(Paragraph("padawan", "luke"))
+			.add(Paragraph("master", "yoda"))
+		document.add(jedis)
+		// when
+		val text = document.toText()
+		// then
+		assertThat(text).isEqualTo(
+			"jedis:\n" +
+			"  padawan: luke\n" +
+			"  master: yoda\n"
+		)
+	}
+
+	@Test
+	fun `toText should return title, subtitle and a title if document has a paragraph, a nested one and a paragraph again`() {
+		// given
+		val document = YAMLDescribeDocument()
+		val jedis = Paragraph("jedis")
+			.add(Paragraph("padawan", "luke"))
+		val siths = Paragraph("sith")
+			.add(Paragraph("master", "darth vader"))
+		document
+			.add(jedis)
+			.add(siths)
+		// when
+		val text = document.toText()
+		// then
+		assertThat(text).isEqualTo(
+			"jedis:\n" +
+			"  padawan: luke\n" +
+			"sith:\n" +
+			"  master: darth vader\n"
+			)
+	}
+}