Release getSalaryInfo

src/main/java/core/basesyntax/SalaryInfo.java

@@ -1,7 +1,38 @@
 package core.basesyntax;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
 public class SalaryInfo {
+    private static DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("dd.MM.yyyy");
+
     public String getSalaryInfo(String[] names, String[] data, String dateFrom, String dateTo) {
-        return null;
+        String regex = "\\s+";
+        int indexDate = 0;
+        int indexName = 1;
+        int indexWorkingHour = 2;
+        int indexSalary = 3;
+
+        LocalDate salaryDateFrom = LocalDate.parse(dateFrom, dateTimeFormatter);
+        LocalDate salaryDateTo = LocalDate.parse(dateTo, dateTimeFormatter);
+        StringBuilder stringBuilder = new StringBuilder();
+
+        stringBuilder.append("Report for period ").append(dateFrom).append(" - ").append(dateTo);
+        for (String name : names) {
+            int sumSalary = 0;
+            for (String dataEntry : data) {
+                String[] parsDatum = dataEntry.split(regex);
+                LocalDate currentDate = LocalDate.parse(parsDatum[indexDate], dateTimeFormatter);
+                if (!currentDate.isBefore(salaryDateFrom) && !currentDate.isAfter(salaryDateTo)
+                        && parsDatum[indexName].equals(name)) {
+                    sumSalary += Integer.parseInt(parsDatum[indexWorkingHour])
+                            * Integer.parseInt(parsDatum[indexSalary]);
+                }
+            }
+            stringBuilder.append(System.lineSeparator())
+                    .append(name).append(" - ")
+                    .append(sumSalary);
+        }
+        return stringBuilder.toString();
     }
 }