Refactor mappings from table to tree structure for categories

Replaced the old table-based settings component with a tree-based structure to support category grouping for mappings. Updated relevant components, including adding category management in mappings and enabling tree-based editing, adding, and removal of mappings. Modified data model and configuration logic to handle categories effectively.

Author: meanmail

src/main/kotlin/dev/meanmail/prettifypython/FoldingBuilder.kt

@@ -36,9 +36,9 @@ class PrettifyFoldingBuilder : FoldingBuilder {
         val text = node.text
 
         val settings = PrettifySettings.getInstance()
-        val replacement = settings.mappings
-            .find { it.first == text }
-            ?.second
+        val replacement = settings.getState().mappings
+            .find { it.from == text }
+            ?.to
 
         if (replacement == null || (text == "**" && node.psi.parent !is PyBinaryExpression)) {
             return emptyList()

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

@@ -5,5 +5,6 @@ import kotlinx.serialization.Serializable
 @Serializable
 data class MappingEntry(
     val from: String = "",
-    val to: String = ""
+    val to: String = "",
+    val category: String = ""
 )

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

@@ -16,7 +16,8 @@ class PrettifySettings : PersistentStateComponent<PrettifySettings.State> {
 
     @Serializable
     data class State(
-        var mappings: List<MappingEntry> = DEFAULT_MAPPINGS
+        var mappings: List<MappingEntry> = DEFAULT_MAPPINGS,
+        var categories: Set<String> = DEFAULT_CATEGORIES
     )
 
     private var myState = State()
@@ -30,26 +31,40 @@ class PrettifySettings : PersistentStateComponent<PrettifySettings.State> {
     var mappings: List<Pair<String, String>>
         get() = myState.mappings.map { Pair(it.from, it.to) }
         set(value) {
-            myState.mappings = value.map { MappingEntry(it.first, it.second) }
+            val oldCategories = myState.mappings.map { it.category }
+            myState.mappings = value.zip(oldCategories) { pair, category ->
+                MappingEntry(pair.first, pair.second, category)
+            }
         }
 
+    var categories: Set<String>
+        get() = myState.categories
+        set(value) {
+            myState.categories = value
+        }
+
+    fun getDefaultMappings(): List<MappingEntry> {
+        return DEFAULT_MAPPINGS
+    }
+
     fun resetToDefaults() {
-        mappings = DEFAULT_MAPPINGS_PAIRS
+        myState.mappings = getDefaultMappings()
+        myState.categories = myState.mappings.map { it.category }.toSet()
     }
 
     companion object {
         fun getInstance(): PrettifySettings =
             ApplicationManager.getApplication().getService(PrettifySettings::class.java)
 
         private val DEFAULT_MAPPINGS = listOf(
-            MappingEntry(">=", "≥"),
-            MappingEntry("<=", "≤"),
-            MappingEntry("!=", "≠"),
-            MappingEntry("->", "➔"),
-            MappingEntry("lambda", "λ"),
-            MappingEntry("**", "^")
+            MappingEntry(">=", "≥", "Comparison"),
+            MappingEntry("<=", "≤", "Comparison"),
+            MappingEntry("!=", "≠", "Comparison"),
+            MappingEntry("->", "➔", "Arrow"),
+            MappingEntry("lambda", "λ", "Keyword"),
+            MappingEntry("**", "^", "Operator")
         )
 
-        private val DEFAULT_MAPPINGS_PAIRS = DEFAULT_MAPPINGS.map { Pair(it.from, it.to) }
+        private val DEFAULT_CATEGORIES = DEFAULT_MAPPINGS.map { it.category }.toSet()
     }
 }