feat: Integrate stdlib into workspace model

CHANGELOG.md

@@ -19,6 +19,8 @@ Changelog structure reference:
 
 ### Added
 
+- Zig
+  - Changing the zig standard library path in the project settings now properly updates the dependency
 - ZLS
   - All of the config options are now exposed in the GUI
 

core/src/main/kotlin/com/falsepattern/zigbrains/project/settings/ZigProjectSettingsService.kt

@@ -22,15 +22,18 @@
 
 package com.falsepattern.zigbrains.project.settings
 
+import com.falsepattern.zigbrains.project.toolchain.stdlib.ZigSyntheticLibrary
+import com.falsepattern.zigbrains.shared.zigCoroutineScope
 import com.intellij.openapi.components.*
 import com.intellij.openapi.project.Project
+import kotlinx.coroutines.launch
 
 @Service(Service.Level.PROJECT)
 @State(
     name = "ZigProjectSettings",
     storages = [Storage("zigbrains.xml")]
 )
-class ZigProjectSettingsService: PersistentStateComponent<ZigProjectSettings> {
+class ZigProjectSettingsService(val project: Project): PersistentStateComponent<ZigProjectSettings> {
     @Volatile
     private var state = ZigProjectSettings()
 
@@ -40,10 +43,13 @@ class ZigProjectSettingsService: PersistentStateComponent<ZigProjectSettings> {
 
     fun setState(value: ZigProjectSettings) {
         this.state = value
+        zigCoroutineScope.launch {
+            ZigSyntheticLibrary.reload(project, value)
+        }
     }
 
     override fun loadState(state: ZigProjectSettings) {
-        this.state = state
+        setState(state)
     }
 
     fun isModified(otherData: ZigProjectSettings): Boolean {

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

@@ -27,28 +27,34 @@ import com.falsepattern.zigbrains.project.settings.ZigProjectSettings
 import com.falsepattern.zigbrains.project.settings.zigProjectSettings
 import com.intellij.navigation.ItemPresentation
 import com.intellij.openapi.project.Project
+import com.intellij.openapi.project.guessProjectDir
 import com.intellij.openapi.roots.SyntheticLibrary
 import com.intellij.openapi.util.io.toNioPathOrNull
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.openapi.vfs.refreshAndFindVirtualDirectory
+import com.intellij.platform.backend.workspace.WorkspaceModel
+import com.intellij.platform.backend.workspace.toVirtualFileUrl
+import com.intellij.platform.workspace.jps.entities.*
+import com.intellij.workspaceModel.ide.legacyBridge.LegacyBridgeJpsEntitySourceFactory
 import kotlinx.coroutines.runBlocking
 import java.util.*
 import javax.swing.Icon
 
 class ZigSyntheticLibrary(val project: Project) : SyntheticLibrary(), ItemPresentation {
+    private var state: ZigProjectSettings = project.zigProjectSettings.state.copy()
     private val roots by lazy {
-        getRoots(project.zigProjectSettings.state, project)
+        runBlocking {getRoot(state, project)}?.let { setOf(it) } ?: emptySet()
     }
 
     private val name by lazy {
-        getName(project.zigProjectSettings.state, project)
+        getName(state, project)
     }
 
     override fun equals(other: Any?): Boolean {
         if (other !is ZigSyntheticLibrary)
             return false
 
-        return roots == other.roots
+        return state == other.state
     }
 
     override fun hashCode(): Int {
@@ -67,9 +73,59 @@ class ZigSyntheticLibrary(val project: Project) : SyntheticLibrary(), ItemPresen
         return roots
     }
 
+    companion object {
+        private const val ZIG_LIBRARY_ID = "Zig SDK"
+        private const val ZIG_MODULE_ID = "Zig"
+        suspend fun reload(project: Project, state: ZigProjectSettings) {
+            val moduleId = ModuleId(ZIG_MODULE_ID)
+            val workspaceModel = WorkspaceModel.getInstance(project)
+            if (moduleId !in workspaceModel.currentSnapshot) {
+                val baseModuleDir = project.guessProjectDir()?.toVirtualFileUrl(workspaceModel.getVirtualFileUrlManager()) ?: return
+
+                val moduleEntitySource = LegacyBridgeJpsEntitySourceFactory.getInstance(project)
+                    .createEntitySourceForModule(baseModuleDir, null)
+
+                val moduleEntity = ModuleEntity(ZIG_MODULE_ID, emptyList(), moduleEntitySource)
+                workspaceModel.update("Add new module") {builder ->
+                    builder.addEntity(moduleEntity)
+                }
+            }
+            val moduleEntity = workspaceModel.currentSnapshot.resolve(moduleId) ?: return
+            val root = getRoot(state, project) ?: return
+            val libRoot = LibraryRoot(root.toVirtualFileUrl(workspaceModel.getVirtualFileUrlManager()), LibraryRootTypeId.SOURCES)
+            val libraryTableId = LibraryTableId.ProjectLibraryTableId
+            val libraryId = LibraryId(ZIG_LIBRARY_ID, libraryTableId)
+            if (libraryId in workspaceModel.currentSnapshot) {
+                val library = workspaceModel.currentSnapshot.resolve(libraryId) ?: return
+                workspaceModel.update("Update library") { builder ->
+                    builder.modifyLibraryEntity(library) {
+                        roots.clear()
+                        roots.add(libRoot)
+                    }
+                }
+            } else {
+                val libraryEntitySource = LegacyBridgeJpsEntitySourceFactory
+                    .getInstance(project)
+                    .createEntitySourceForProjectLibrary(null)
+                val libraryEntity = LibraryEntity(
+                    ZIG_LIBRARY_ID,
+                    libraryTableId, emptyList(),
+                    libraryEntitySource
+                ) {
+                    roots.add(libRoot)
+                }
+                workspaceModel.update("Add new library") { builder ->
+                    builder.addEntity(libraryEntity)
+                }
+            }
+            workspaceModel.update("Link dep") { builder ->
+                builder.modifyModuleEntity(moduleEntity) {
+                    dependencies.add(LibraryDependency(libraryId, false, DependencyScope.COMPILE))
+                }
+            }
+        }
+    }
 }
-
-
 
 private fun getName(
     state: ZigProjectSettings,
@@ -80,29 +136,29 @@ private fun getName(
     return "Zig $version"
 }
 
-private fun getRoots(
+suspend fun getRoot(
     state: ZigProjectSettings,
     project: Project
-): Set<VirtualFile> {
+): VirtualFile? {
     val toolchain = state.toolchain
     if (state.overrideStdPath) run {
         val ePathStr = state.explicitPathToStd ?: return@run
         val ePath = ePathStr.toNioPathOrNull() ?: return@run
         if (ePath.isAbsolute) {
             val roots = ePath.refreshAndFindVirtualDirectory() ?: return@run
-            return setOf(roots)
+            return roots
         } else if (toolchain != null) {
             val stdPath = toolchain.location.resolve(ePath)
             if (stdPath.isAbsolute) {
                 val roots = stdPath.refreshAndFindVirtualDirectory() ?: return@run
-                return setOf(roots)
+                return roots
             }
         }
     }
     if (toolchain != null) {
-        val stdPath = runBlocking { toolchain.zig.getEnv(project) }?.stdPath(toolchain, project) ?: return emptySet()
-        val roots = stdPath.refreshAndFindVirtualDirectory() ?: return emptySet()
-        return setOf(roots)
+        val stdPath = toolchain.zig.getEnv(project)?.stdPath(toolchain, project) ?: return null
+        val roots = stdPath.refreshAndFindVirtualDirectory() ?: return null
+        return roots
     }
-    return emptySet()
+    return null
 }