refactor: clean up old code

src/main/java/ee/carlrobert/codegpt/ReferencedFile.java

@@ -0,0 +1,72 @@
+package ee.carlrobert.codegpt;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Objects;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class ReferencedFile {
+
+  private final String fileName;
+  private final String filePath;
+  private final String fileContent;
+
+  public ReferencedFile(File file) {
+    this.fileName = file.getName();
+    this.filePath = file.getPath();
+    try {
+      this.fileContent = new String(Files.readAllBytes(Paths.get(filePath)));
+    } catch (IOException e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  public ReferencedFile(String fileName, String filePath, String fileContent) {
+    this.fileName = fileName;
+    this.filePath = filePath;
+    this.fileContent = fileContent;
+  }
+
+  public String getFileName() {
+    return fileName;
+  }
+
+  public String getFilePath() {
+    return filePath;
+  }
+
+  public String getFileContent() {
+    return fileContent;
+  }
+
+  public String getFileExtension() {
+    Pattern pattern = Pattern.compile("[^.]+$");
+    Matcher matcher = pattern.matcher(fileName);
+
+    if (matcher.find()) {
+      return matcher.group();
+    }
+    return "";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+
+    ReferencedFile that = (ReferencedFile) o;
+    return Objects.equals(filePath, that.filePath);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(filePath);
+  }
+}