Release getSalaryInfo

Author: u3IOm4uk

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

@@ -1,7 +1,39 @@
 package core.basesyntax;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
 public class SalaryInfo {
     public String getSalaryInfo(String[] names, String[] data, String dateFrom, String dateTo) {
-        return null;
+        private static final String REGEX = "\\s+";
+        private static final int INDEX_DATE = 0;
+        private static final int INDEX_NAME = 1;
+        private static final int INDEX_WORKING_HOUR = 2;
+        private static final int INDEX_SALARY = 3;
+        private static final String DATE_FORMAT = "dd.MM.yyyy";
+        DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(DATE_FORMAT);
+        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 datum : data) {
+                String[] parsDatum = datum.split(REGEX);
+                LocalDate currentDate = LocalDate.parse(parsDatum[INDEX_DATE], dateTimeFormatter);
+                if (!currentDate.isBefore(salaryDateFrom) && !currentDate.isAfter(salaryDateTo)
+                        && parsDatum[INDEX_NAME].equals(name)) {
+                    sumSalary += Integer.parseInt(parsDatum[INDEX_WORKING_HOUR])
+                            * Integer.parseInt(parsDatum[INDEX_SALARY]);
+                }
+            }
+            if (sumSalary >= 0) {
+                stringBuilder.append(System.lineSeparator())
+                        .append(name).append(" - ")
+                        .append(sumSalary);
+            }
+        }
+        return stringBuilder.toString();
     }
 }