Done ticket GEPAFINBE-162

src/main/java/net/gepafin/tendermanagement/util/FieldValidator.java

@@ -2,6 +2,10 @@ package net.gepafin.tendermanagement.util;
 
 import java.text.MessageFormat;
 import java.util.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -9,12 +13,18 @@ import net.gepafin.tendermanagement.config.Translator;
 import net.gepafin.tendermanagement.constants.GepafinConstant;
 import net.gepafin.tendermanagement.dao.FormDao;
 import net.gepafin.tendermanagement.dao.VatCheckDao;
+import net.gepafin.tendermanagement.entities.ApplicationFormEntity;
+import net.gepafin.tendermanagement.entities.ApplicationFormFieldEntity;
+import net.gepafin.tendermanagement.model.request.ApplicationFormFieldRequestBean;
 import net.gepafin.tendermanagement.model.request.ContentRequestBean;
 import net.gepafin.tendermanagement.model.response.ContentResponseBean;
 import net.gepafin.tendermanagement.model.response.SettingResponseBean;
+import net.gepafin.tendermanagement.repositories.ApplicationFormFieldRepository;
+import net.gepafin.tendermanagement.web.rest.api.errors.CustomValidationException;
 import net.gepafin.tendermanagement.web.rest.api.errors.Status;
 import net.gepafin.tendermanagement.web.rest.api.errors.ValidationException;
 import org.apache.commons.lang3.StringUtils;
+import org.json.JSONObject;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.util.CollectionUtils;
 
@@ -232,5 +242,17 @@ public class FieldValidator {
 		// Now contentRequestBean is populated with the data from the JSON
 		return contentRequestBean;
 	}
-
+	public FieldValidator formulaValidation(Object fieldValue, double finalValue, String label) {
+		if (fieldValue != null) {
+			try {
+				double fieldValueAsDouble = Double.parseDouble(fieldValue.toString());  // Convert fieldValue to double
+				if (Double.compare(finalValue, fieldValueAsDouble) != 0) {  // Compare doubles safely
+					errors.add(MessageFormat.format(Translator.toLocale(GepafinConstant.FORMULA_AMOUNT_NOT_MATCHED), label));
+				}
+			} catch (NumberFormatException e) {
+				throw new CustomValidationException(Status.BAD_REQUEST, "Invalid field value: " + fieldValue);
+			}
+		}
+		return this;
+	}
 }

src/main/java/net/gepafin/tendermanagement/util/Utils.java

@@ -11,6 +11,7 @@ import java.text.SimpleDateFormat;
 import java.util.*;
 import java.util.function.Consumer;
 import java.util.function.Supplier;
+import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
@@ -27,6 +28,8 @@ import jakarta.servlet.http.HttpServletRequest;
 import net.gepafin.tendermanagement.config.Translator;
 import net.gepafin.tendermanagement.constants.GepafinConstant;
 import net.gepafin.tendermanagement.model.request.GlobalFilters;
+import net.objecthunter.exp4j.Expression;
+import net.objecthunter.exp4j.ExpressionBuilder;
 import org.apache.commons.collections4.MapUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -54,6 +57,9 @@ import javax.crypto.Cipher;
 import javax.crypto.Mac;
 import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.SecretKeySpec;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
 
 import static org.apache.commons.lang3.StringUtils.isEmpty;
 
@@ -753,6 +759,23 @@ public class Utils {
 	private static Map<String, Object> defaultErrorResponse() {
 		return Collections.singletonMap("message", Translator.toLocale(GepafinConstant.INVALID_VATNUMBER));
 	}
+	public static List<String> extractValues(String input) {
+		List<String> extractedValues = new ArrayList<>();
+		Pattern pattern = Pattern.compile("\\{(.*?)\\}"); // Regex to match {value}
+		Matcher matcher = pattern.matcher(input);
 
-
+		while (matcher.find()) {
+			extractedValues.add(matcher.group(1)); // Extract value inside {}
+		}
+		return extractedValues;
+	}
+	public static double evaluateExpression(String expression) {
+		try {
+			Expression exp = new ExpressionBuilder(expression).build();
+			return exp.evaluate();
+		} catch (Exception e) {
+			e.printStackTrace();
+			return Double.NaN;  // Return NaN if the expression is invalid
+		}
+	}
 }