Feature: Config Panel

src/main/kotlin/com/aicc/aicodecompletionideaplugin/AICCCache.kt

@@ -11,6 +11,14 @@ import java.util.concurrent.TimeUnit
  * tailored for the caching of code completion suggestions.
  */
 object AICCCache {
+
+    /**
+     * Clears all entries from the cache.
+     */
+    fun clear() {
+        cache.invalidateAll()
+    }
+
     /**
      * Checks if the cache contains a value for the specified key.
      *

src/main/kotlin/com/aicc/aicodecompletionideaplugin/LLM.kt

@@ -13,4 +13,11 @@ interface LLM {
      * @return The generated completion suggestion, or null if no suggestion could be generated.
      */
     fun call(prefix: String, suffix: String): String?
+
+    /**
+     * This method changes the current model used by the LLM.
+     *
+     * @param model The name of the model to be used.
+     */
+    fun changeModel(model: String)
 }

src/main/kotlin/com/aicc/aicodecompletionideaplugin/OllamaLLM.kt

@@ -12,6 +12,12 @@ import java.net.http.HttpTimeoutException
  * and suffix.
  */
 object OllamaLLM : LLM {
+
+    /**
+     * The model used for code generation in the Ollama API.
+     */
+    private var model = "codellama:7b-code"
+
     /**
      * Attempts to generate a code completion suggestion by querying the Ollama API.
      * It constructs a request with a combination of prefix and suffix, handling retries
@@ -28,7 +34,7 @@ object OllamaLLM : LLM {
                 val suggestion = try {
                     OllamaAPI(HOST).apply {
                         setRequestTimeoutSeconds(4)
-                    }.generate(MODEL, "<PRE> $prefix <SUF>$suffix <MID>", options).response.let {
+                    }.generate(model, "<PRE> $prefix <SUF>$suffix <MID>", options).response.let {
                         if (it.endsWith(END)) it.substring(0, it.length - END.length).trim(' ', '\t', '\n') else it
                     }
                 } catch (e: HttpTimeoutException) {
@@ -44,6 +50,15 @@ object OllamaLLM : LLM {
         return null
     }
 
+    /**
+     * Changes the model used by the LLM.
+     * It will also clear the cache
+     */
+    override fun changeModel(model: String) {
+        this.model = model
+        AICCCache.clear()
+    }
+
     /**
      * Lazily initialized options for the Ollama API call.
      * These options include settings such as the temperature for the generation process.
@@ -74,11 +89,6 @@ object OllamaLLM : LLM {
      */
     private const val HOST = "http://localhost:11434/"
 
-    /**
-     * The model used for code generation in the Ollama API.
-     */
-    private const val MODEL = "codellama:7b-code"
-
     /**
      * The end of text marker used in the responses from the Ollama API.
      */

src/main/kotlin/com/aicc/aicodecompletionideaplugin/config/AICCConfig.kt

@@ -0,0 +1,41 @@
+package com.aicc.aicodecompletionideaplugin.config
+
+import com.aicc.aicodecompletionideaplugin.OllamaLLM
+import com.intellij.openapi.options.SearchableConfigurable
+import javax.swing.JComponent
+
+class AICCConfig : SearchableConfigurable {
+
+    private var panel: AICCSettingsPanel? = null
+
+    override fun createComponent(): JComponent {
+        return AICCSettingsPanel().also { panel = it }.mainPanel
+    }
+
+    override fun isModified(): Boolean {
+        val panel = this.panel ?: return false
+        val state = AICCState.getInstance()
+        return panel.modelField.text != state.model
+    }
+
+    override fun reset() {
+        val panel = this.panel ?: return
+        val state = AICCState.getInstance()
+        panel.modelField.text = state.model
+        OllamaLLM.changeModel(state.model)
+    }
+
+    override fun apply() {
+        val panel = this.panel ?: return
+        val state = AICCState.getInstance()
+        state.model = panel.modelField.text
+        OllamaLLM.changeModel(state.model)
+    }
+
+    override fun disposeUIResources() {
+        this.panel = null
+    }
+
+    override fun getDisplayName() = "AI code completion idea"
+    override fun getId() = "com.aicc.aicodecompletionideaplugin.config.AICCConfig"
+}

src/main/kotlin/com/aicc/aicodecompletionideaplugin/config/AICCSettingsPanel.form

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="com.aicc.aicodecompletionideaplugin.config.AICCSettingsPanel">
+  <grid id="27dc6" binding="mainPanel" layout-manager="GridLayoutManager" row-count="2" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="0" left="0" bottom="0" right="0"/>
+    <constraints>
+      <xy x="20" y="20" width="500" height="400"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <component id="1f787" class="javax.swing.JTextField" binding="modelField">
+        <constraints>
+          <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+            <preferred-size width="150" height="-1"/>
+          </grid>
+        </constraints>
+        <properties/>
+      </component>
+      <vspacer id="e63c3">
+        <constraints>
+          <grid row="1" column="1" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </vspacer>
+      <component id="c9628" class="javax.swing.JLabel">
+        <constraints>
+          <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Model"/>
+        </properties>
+      </component>
+    </children>
+  </grid>
+</form>

src/main/kotlin/com/aicc/aicodecompletionideaplugin/config/AICCSettingsPanel.kt

@@ -0,0 +1,15 @@
+package com.aicc.aicodecompletionideaplugin.config;
+
+import com.intellij.ui.IdeBorderFactory
+import javax.swing.JPanel
+import javax.swing.JTextField
+
+class AICCSettingsPanel {
+
+    lateinit var mainPanel: JPanel
+    lateinit var modelField: JTextField
+
+    init {
+        mainPanel.border = IdeBorderFactory.createTitledBorder("Plugin Settings")
+    }
+}

src/main/kotlin/com/aicc/aicodecompletionideaplugin/config/AICCState.kt

@@ -0,0 +1,31 @@
+package com.aicc.aicodecompletionideaplugin.config
+
+import com.aicc.aicodecompletionideaplugin.OllamaLLM
+import com.intellij.openapi.application.ApplicationManager
+import com.intellij.openapi.components.PersistentStateComponent
+import com.intellij.openapi.components.Storage
+import com.intellij.openapi.components.State
+import com.intellij.util.xmlb.XmlSerializerUtil
+
+@State(
+    name = "com.aicc.aicodecompletionideaplugin.config.AICCState",
+    storages = [Storage("aicodecompletionideaplugin.xml")]
+)
+class AICCState : PersistentStateComponent<AICCState> {
+
+    @JvmField
+    var model: String = "codellama:7b-code"
+
+    override fun getState(): AICCState = this
+
+    override fun loadState(state: AICCState) {
+        XmlSerializerUtil.copyBean(state, this)
+        OllamaLLM.changeModel(state.model)
+    }
+
+    companion object {
+        fun getInstance(): AICCState {
+            return ApplicationManager.getApplication().getService(AICCState::class.java)
+        }
+    }
+}

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

@@ -24,6 +24,12 @@
   <extensions defaultExtensionNs="com.intellij">
     <inline.completion.provider implementation="com.aicc.aicodecompletionideaplugin.AICCInlineCompletionProvider"/>
     <statusBarWidgetFactory implementation="com.aicc.aicodecompletionideaplugin.AICCStatusBarWidgetFactory" id="AICCStatusBarWidgetFactory"/>
+    <applicationConfigurable
+            parentId="tools"
+            instance="com.aicc.aicodecompletionideaplugin.config.AICCConfig"
+            id="com.aicc.aicodecompletionideaplugin.config.AICCConfig"
+            displayName="AI code completion idea"/>
+    <applicationService serviceImplementation="com.aicc.aicodecompletionideaplugin.config.AICCState"/>
   </extensions>
   <actions>
     <action id="com.aicc.aicodecompletionideaplugin.AICCStatsPopupDialogAction"