modular toolchain config

core/src/main/kotlin/com/falsepattern/zigbrains/project/toolchain/ZigToolchainListService.kt

@@ -26,9 +26,6 @@ import com.falsepattern.zigbrains.project.toolchain.ZigToolchainListService.MySt
 import com.falsepattern.zigbrains.project.toolchain.base.ZigToolchain
 import com.falsepattern.zigbrains.project.toolchain.base.resolve
 import com.falsepattern.zigbrains.project.toolchain.base.toRef
-import com.falsepattern.zigbrains.shared.AccessibleStorage
-import com.falsepattern.zigbrains.shared.ChangeTrackingStorage
-import com.falsepattern.zigbrains.shared.IterableStorage
 import com.falsepattern.zigbrains.shared.UUIDMapSerializable
 import com.falsepattern.zigbrains.shared.UUIDStorage
 import com.intellij.openapi.components.*
@@ -38,25 +35,20 @@ import com.intellij.openapi.components.*
     name = "ZigToolchainList",
     storages = [Storage("zigbrains.xml")]
 )
-class ZigToolchainListService: UUIDMapSerializable.Converting<ZigToolchain, ZigToolchain.Ref, MyState>(MyState()), IZigToolchainListService {
+class ZigToolchainListService: UUIDMapSerializable.Converting<ZigToolchain, ZigToolchain.Ref, MyState>(MyState()) {
     override fun serialize(value: ZigToolchain) = value.toRef()
     override fun deserialize(value: ZigToolchain.Ref) = value.resolve()
     override fun getStorage(state: MyState) = state.toolchains
     override fun updateStorage(state: MyState, storage: ToolchainStorage) = state.copy(toolchains = storage)
 
-    data class MyState(
-        @JvmField
-        val toolchains: ToolchainStorage = emptyMap(),
-    )
+    data class MyState(@JvmField val toolchains: ToolchainStorage = emptyMap())
 
     companion object {
         @JvmStatic
-        fun getInstance(): IZigToolchainListService = service<ZigToolchainListService>()
+        fun getInstance(): ZigToolchainListService = service<ZigToolchainListService>()
     }
 }
 
-inline val zigToolchainList: IZigToolchainListService get() = ZigToolchainListService.getInstance()
-
-sealed interface IZigToolchainListService: ChangeTrackingStorage, AccessibleStorage<ZigToolchain>, IterableStorage<ZigToolchain>
+inline val zigToolchainList: ZigToolchainListService get() = ZigToolchainListService.getInstance()
 
 private typealias ToolchainStorage = UUIDStorage<ZigToolchain.Ref>

core/src/main/kotlin/com/falsepattern/zigbrains/project/toolchain/base/ZigToolchainConfigurable.kt

@@ -22,7 +22,6 @@
 
 package com.falsepattern.zigbrains.project.toolchain.base
 
-import com.falsepattern.zigbrains.project.toolchain.ZigToolchainListService
 import com.falsepattern.zigbrains.project.toolchain.zigToolchainList
 import com.intellij.openapi.ui.NamedConfigurable
 import com.intellij.openapi.util.NlsContexts
@@ -39,19 +38,21 @@ abstract class ZigToolchainConfigurable<T: ZigToolchain>(
             zigToolchainList[uuid] = value
             field = value
         }
-    private var myView: ZigToolchainPanel<T>? = null
+    private var myViews: List<ZigToolchainPanel<T>> = emptyList()
 
     abstract fun createPanel(): ZigToolchainPanel<T>
 
     override fun createOptionsPanel(): JComponent? {
-        var view = myView
-        if (view == null) {
-            view = createPanel()
-            view.reset(toolchain)
-            myView = view
+        var views = myViews
+        if (views.isEmpty()) {
+            views = ArrayList<ZigToolchainPanel<T>>()
+            views.add(createPanel())
+            views.addAll(createZigToolchainExtensionPanels())
+            views.forEach { it.reset(toolchain) }
+            myViews = views
         }
         return panel {
-            view.attach(this)
+            views.forEach { it.attach(this@panel) }
         }.withMinimumWidth(20)
     }
 
@@ -68,20 +69,20 @@ abstract class ZigToolchainConfigurable<T: ZigToolchain>(
     }
 
     override fun isModified(): Boolean {
-        return myView?.isModified(toolchain) == true
+        return myViews.any { it.isModified(toolchain) }
     }
 
     override fun apply() {
-        myView?.apply(toolchain)?.let { toolchain = it }
+        toolchain = myViews.fold(toolchain) { tc, view -> view.apply(tc) ?: tc }
     }
 
     override fun reset() {
-        myView?.reset(toolchain)
+        myViews.forEach { it.reset(toolchain) }
     }
 
     override fun disposeUIResources() {
-        myView?.dispose()
-        myView = null
+        myViews.forEach { it.dispose() }
+        myViews = emptyList()
         super.disposeUIResources()
     }
 }

core/src/main/kotlin/com/falsepattern/zigbrains/project/toolchain/base/ZigToolchainExtensionsProvider.kt

@@ -0,0 +1,38 @@
+/*
+ * This file is part of ZigBrains.
+ *
+ * Copyright (C) 2023-2025 FalsePattern
+ * All Rights Reserved
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * ZigBrains is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, only version 3 of the License.
+ *
+ * ZigBrains is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with ZigBrains. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.falsepattern.zigbrains.project.toolchain.base
+
+import com.intellij.openapi.extensions.ExtensionPointName
+
+private val EXTENSION_POINT_NAME = ExtensionPointName.create<ZigToolchainExtensionsProvider>("com.falsepattern.zigbrains.toolchainExtensionsProvider")
+
+internal interface ZigToolchainExtensionsProvider {
+    fun <T : ZigToolchain> createExtensionPanel(): ZigToolchainPanel<T>?
+    val index: Int
+}
+
+fun <T: ZigToolchain> createZigToolchainExtensionPanels(): List<ZigToolchainPanel<T>> {
+    return EXTENSION_POINT_NAME.extensionList.sortedBy{ it.index }.mapNotNull {
+        it.createExtensionPanel()
+    }
+}

core/src/main/kotlin/com/falsepattern/zigbrains/project/toolchain/base/ZigToolchainPanel.kt

@@ -22,29 +22,15 @@
 
 package com.falsepattern.zigbrains.project.toolchain.base
 
-import com.falsepattern.zigbrains.ZigBrainsBundle
 import com.intellij.openapi.Disposable
-import com.intellij.ui.components.JBTextField
-import com.intellij.ui.dsl.builder.AlignX
 import com.intellij.ui.dsl.builder.Panel
-import com.intellij.ui.util.preferredHeight
-import java.awt.Dimension
 
-abstract class ZigToolchainPanel<T: ZigToolchain>: Disposable {
-    private val nameField = JBTextField(25)
-
-    protected var nameFieldValue: String?
-        get() = nameField.text.ifBlank { null }
-        set(value) {nameField.text = value ?: ""}
-
-    open fun attach(p: Panel): Unit = with(p) {
-        row(ZigBrainsBundle.message("settings.toolchain.base.name.label")) {
-            cell(nameField).resizableColumn().align(AlignX.FILL)
-        }
-        separator()
-    }
-
-    abstract fun isModified(toolchain: T): Boolean
-    abstract fun apply(toolchain: T): T?
-    abstract fun reset(toolchain: T)
+interface ZigToolchainPanel<T: ZigToolchain>: Disposable {
+    fun attach(p: Panel)
+    fun isModified(toolchain: T): Boolean
+    /**
+     * Returned object must be the exact same class as the provided one.
+     */
+    fun apply(toolchain: T): T?
+    fun reset(toolchain: T)
 }

core/src/main/kotlin/com/falsepattern/zigbrains/project/toolchain/base/ZigToolchainPanelBase.kt

@@ -0,0 +1,46 @@
+/*
+ * This file is part of ZigBrains.
+ *
+ * Copyright (C) 2023-2025 FalsePattern
+ * All Rights Reserved
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * ZigBrains is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, only version 3 of the License.
+ *
+ * ZigBrains is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with ZigBrains. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.falsepattern.zigbrains.project.toolchain.base
+
+import com.falsepattern.zigbrains.ZigBrainsBundle
+import com.intellij.openapi.Disposable
+import com.intellij.ui.components.JBTextField
+import com.intellij.ui.dsl.builder.AlignX
+import com.intellij.ui.dsl.builder.Panel
+import com.intellij.ui.util.preferredHeight
+import java.awt.Dimension
+
+abstract class ZigToolchainPanelBase<T: ZigToolchain>: ZigToolchainPanel<T> {
+    private val nameField = JBTextField(25)
+
+    protected var nameFieldValue: String?
+        get() = nameField.text.ifBlank { null }
+        set(value) {nameField.text = value ?: ""}
+
+    override fun attach(p: Panel): Unit = with(p) {
+        row(ZigBrainsBundle.message("settings.toolchain.base.name.label")) {
+            cell(nameField).resizableColumn().align(AlignX.FILL)
+        }
+        separator()
+    }
+}

core/src/main/kotlin/com/falsepattern/zigbrains/project/toolchain/local/LocalZigToolchainPanel.kt

@@ -23,10 +23,9 @@
 package com.falsepattern.zigbrains.project.toolchain.local
 
 import com.falsepattern.zigbrains.ZigBrainsBundle
-import com.falsepattern.zigbrains.project.toolchain.base.ZigToolchainPanel
+import com.falsepattern.zigbrains.project.toolchain.base.ZigToolchainPanelBase
 import com.falsepattern.zigbrains.shared.coroutine.withEDTContext
 import com.falsepattern.zigbrains.shared.zigCoroutineScope
-import com.intellij.openapi.Disposable
 import com.intellij.openapi.application.ModalityState
 import com.intellij.openapi.fileChooser.FileChooserDescriptorFactory
 import com.intellij.openapi.util.Disposer
@@ -35,7 +34,6 @@ import com.intellij.ui.DocumentAdapter
 import com.intellij.ui.JBColor
 import com.intellij.ui.components.JBCheckBox
 import com.intellij.ui.components.JBTextArea
-import com.intellij.ui.components.JBTextField
 import com.intellij.ui.components.textFieldWithBrowseButton
 import com.intellij.ui.dsl.builder.AlignX
 import com.intellij.ui.dsl.builder.Panel
@@ -46,7 +44,7 @@ import kotlinx.coroutines.launch
 import javax.swing.event.DocumentEvent
 import kotlin.io.path.pathString
 
-class LocalZigToolchainPanel() : ZigToolchainPanel<LocalZigToolchain>() {
+class LocalZigToolchainPanel() : ZigToolchainPanelBase<LocalZigToolchain>() {
     private val pathToToolchain = textFieldWithBrowseButton(
         null,
         FileChooserDescriptorFactory.createSingleFolderDescriptor().withTitle(ZigBrainsBundle.message("dialog.title.zig-toolchain"))