fix(projects): do not store a copy of content in ActiveDocument

subprojects/projects/src/main/java/com/itsaky/androidide/projects/FileManager.kt

@@ -17,7 +17,6 @@
 
 package com.itsaky.androidide.projects
 
-import com.itsaky.androidide.eventbus.events.EventReceiver
 import com.itsaky.androidide.eventbus.events.editor.DocumentChangeEvent
 import com.itsaky.androidide.eventbus.events.editor.DocumentCloseEvent
 import com.itsaky.androidide.eventbus.events.editor.DocumentOpenEvent
@@ -27,6 +26,7 @@ import com.itsaky.androidide.progress.ProcessCancelledException
 import com.itsaky.androidide.progress.ProgressManager
 import com.itsaky.androidide.projects.models.ActiveDocument
 import com.itsaky.androidide.utils.ILogger
+import org.apache.commons.io.FileUtils
 import java.io.BufferedReader
 import java.io.InputStream
 import java.net.URI
@@ -36,9 +36,6 @@ import java.nio.file.Path
 import java.nio.file.Paths
 import java.time.Instant
 import java.util.concurrent.ConcurrentHashMap
-import org.apache.commons.io.FileUtils
-import org.greenrobot.eventbus.Subscribe
-import org.greenrobot.eventbus.ThreadMode.BACKGROUND
 
 /**
  * Manages active documents.
@@ -119,14 +116,12 @@ object FileManager {
 
     document.version = event.version
     document.modified = Instant.now()
-
-    // document is already open
-    // patch the changes
-    document.patch(event)
+    document.content = event.newText!!
+    event.newText = null
   }
 
   fun onDocumentClose(event: DocumentCloseEvent) {
-    activeDocuments.remove(event.closedFile.normalize())?.close()
+    activeDocuments.remove(event.closedFile.normalize())
   }
 
   fun onFileRenamed(event: FileRenameEvent) {
@@ -138,7 +133,7 @@ object FileManager {
 
   fun onFileDeleted(event: FileDeletionEvent) {
     // If the file was an active document, remove the document cache
-    activeDocuments.remove(event.file.toPath().normalize())?.close()
+    activeDocuments.remove(event.file.toPath().normalize())
   }
 
   private fun createDocument(event: DocumentOpenEvent): ActiveDocument {

subprojects/projects/src/main/java/com/itsaky/androidide/projects/models/ActiveDocument.kt

@@ -37,46 +37,9 @@ open class ActiveDocument(
   var version: Int,
   var modified: Instant,
   content: String = ""
-) : Closeable {
-
-  private val _content = StringBuilder(content)
-  private val semaphore = Semaphore(1)
-  private val log = ILogger.newInstance("ActiveDocument")
-
-  val content: String
-    get() = _content.toString()
-
-  fun patch(event: DocumentChangeEvent) {
-    try {
-      semaphore.acquire()
-    } catch (e: Exception) {
-      log.error("Failed to acquire", e)
-      throw RuntimeException(e)
-    }
-
-    try {
-      val text = event.changedText
-      val start = event.changeRange.start.requireIndex()
-      val end = event.changeRange.end.requireIndex()
-
-      when (event.changeType) {
-        ChangeType.DELETE -> _content.delete(start, end)
-        ChangeType.INSERT -> _content.insert(start, text)
-        else -> {
-          _content.clear()
-          _content.append(text)
-        }
-      }
-    } catch (err: Throwable) {
-      throw RuntimeException(err)
-    } finally {
-      semaphore.release()
-    }
-  }
-
-  override fun close() {
-    _content.clear()
-  }
+) {
+  var content: String = content
+    internal set
 
   fun inputStream(): BufferedInputStream {
     return content.byteInputStream().buffered()