Add JSON import/export with extended mappings details

Implemented JSON-based import/export for symbol mappings with additional metadata, including IDE and plugin versions, export date, and mapping count. Enhanced UI feedback with success messages for both operations. Updated the MappingsData model to include versioning and removed unused fields.

Author: meanmail

CHANGES.md

@@ -1,3 +1,11 @@
+## 2024.1 (December 17, 2024)
+
+* Added settings panel for symbol mappings
+* Added support for mapping categories
+* Added JSON import/export functionality for mappings
+* Added drag-and-drop support for sorting
+* Updated Gradle, Java and IntelliJ Platform versions
+
 ## 2020.2 (April 19, 2020)
 
 * Fix: Replace "**" with "^" only inside PyBinaryExpression
@@ -7,7 +15,7 @@
 + Folding ** to ^
 
 ## 2019.2.3 (December, 04, 2019)
-           
+
 * Version for Intellij 2019.3.*
 * jvmTarget 11
 

src/main/kotlin/dev/meanmail/prettifypython/settings/MappingsData.kt

@@ -4,11 +4,11 @@ import kotlinx.serialization.Serializable
 
 @Serializable
 data class MappingsData(
+    val version: String = "1.0",
     val exportDate: String,
     val pluginVersion: String,
     val ideVersion: String,
     val mappingsCount: Int,
     val comment: String = "",
-    val mappings: List<MappingEntry>,
-    val categories: Set<String> = emptySet()
+    val mappings: List<MappingEntry>
 )

src/main/kotlin/dev/meanmail/prettifypython/settings/PrettifySettingsComponent.kt

@@ -1,11 +1,14 @@
 package dev.meanmail.prettifypython.settings
 
 import com.intellij.icons.AllIcons
+import com.intellij.ide.plugins.PluginManagerCore
 import com.intellij.openapi.actionSystem.ActionManager
 import com.intellij.openapi.actionSystem.ActionToolbarPosition
 import com.intellij.openapi.actionSystem.AnAction
 import com.intellij.openapi.actionSystem.AnActionEvent
 import com.intellij.openapi.actionSystem.impl.SimpleDataContext
+import com.intellij.openapi.application.ApplicationInfo
+import com.intellij.openapi.extensions.PluginId
 import com.intellij.openapi.ui.DialogWrapper
 import com.intellij.openapi.ui.Messages
 import com.intellij.ui.IdeBorderFactory
@@ -191,8 +194,6 @@ class PrettifySettingsComponent {
                 else -> return false
             }
 
-            // Remove old node
-            val oldParent = draggedNode.parent as DefaultMutableTreeNode
             treeModel.removeNodeFromParent(draggedNode)
 
             // Create new mapping with target category
@@ -208,42 +209,69 @@ class PrettifySettingsComponent {
 
     private fun importMappings() {
         val fileChooser = JFileChooser().apply {
-            fileFilter = FileNameExtensionFilter("JSON files", "json")
             dialogTitle = "Import Mappings"
+            fileSelectionMode = JFileChooser.FILES_ONLY
+            fileFilter = FileNameExtensionFilter("JSON files", "json")
         }
 
         if (fileChooser.showOpenDialog(mainPanel) == JFileChooser.APPROVE_OPTION) {
             try {
-                val jsonContent = fileChooser.selectedFile.readText()
-                val importedMappings = json.decodeFromString<List<MappingEntry>>(jsonContent)
-                setMappings(importedMappings)
+                val jsonString = fileChooser.selectedFile.readText()
+                val mappingsData = json.decodeFromString<MappingsData>(jsonString)
+                setMappings(mappingsData.mappings)
+                Messages.showInfoMessage(
+                    mainPanel,
+                    "Mappings imported successfully",
+                    "Import Successful"
+                )
             } catch (e: Exception) {
                 Messages.showErrorDialog(
                     mainPanel,
                     "Failed to import mappings: ${e.message}",
-                    "Import Error"
+                    "Import Failed"
                 )
             }
         }
     }
 
     private fun exportMappings() {
         val fileChooser = JFileChooser().apply {
-            fileFilter = FileNameExtensionFilter("JSON files", "json")
             dialogTitle = "Export Mappings"
-            val timestamp = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss"))
-            selectedFile = File("prettify_python_mappings_$timestamp.json")
+            fileSelectionMode = JFileChooser.FILES_ONLY
+            fileFilter = FileNameExtensionFilter("JSON files", "json")
+            val now = LocalDateTime.now()
+            val formatter = DateTimeFormatter.ofPattern("yyyyMMdd_HHmmss")
+            selectedFile = File("prettify_python_mappings_${now.format(formatter)}.json")
         }
 
         if (fileChooser.showSaveDialog(mainPanel) == JFileChooser.APPROVE_OPTION) {
             try {
-                val jsonContent = json.encodeToString(getMappings())
-                fileChooser.selectedFile.writeText(jsonContent)
+                val mappings = getMappings()
+                val pluginId = PluginId.findId("ru.meanmail.plugins.prettify-python")
+                    ?: throw IllegalStateException("Plugin ID not found")
+                val plugin = PluginManagerCore.getPlugin(pluginId)
+                    ?: throw IllegalStateException("Plugin not found")
+
+                val now = LocalDateTime.now()
+                val mappingsData = MappingsData(
+                    mappings = mappings,
+                    ideVersion = ApplicationInfo.getInstance().fullVersion,
+                    pluginVersion = plugin.version,
+                    mappingsCount = mappings.size,
+                    exportDate = now.toString()
+                )
+                val jsonString = json.encodeToString(mappingsData)
+                fileChooser.selectedFile.writeText(jsonString)
+                Messages.showInfoMessage(
+                    mainPanel,
+                    "Mappings exported successfully",
+                    "Export Successful"
+                )
             } catch (e: Exception) {
                 Messages.showErrorDialog(
                     mainPanel,
                     "Failed to export mappings: ${e.message}",
-                    "Export Error"
+                    "Export Failed"
                 )
             }
         }