Implementing getSalaryInfo

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

@@ -1,7 +1,51 @@
 package core.basesyntax;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
 public class SalaryInfo {
+    private final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd.MM.yyyy");
+
     public String getSalaryInfo(String[] names, String[] data, String dateFrom, String dateTo) {
-        return null;
+        LocalDate startDate = LocalDate.parse(dateFrom, formatter);
+        LocalDate endDate = LocalDate.parse(dateTo, formatter);
+        int[] salaries = getSalaries(names, data, startDate, endDate);
+        return getReport(names, startDate, endDate, salaries);
+
+    }
+
+    private int[] getSalaries(String[] names, String[] data,
+                              LocalDate startDate, LocalDate endDate) {
+        int[] salaries = new int[names.length];
+        for (int i = 0; i < names.length; i++) {
+            for (String userData : data) {
+                String[] workday = userData.split(" ");
+                LocalDate workDate = LocalDate.parse(workday[0], formatter);
+                if (!workDate.isBefore(startDate) && !workDate.isAfter(endDate)) {
+                    if (names[i].equals(workday[1])) {
+                        salaries[i] += Integer.parseInt(workday[2]) * Integer.parseInt(workday[3]);
+                    }
+                }
+
+            }
+
+        }
+        return salaries;
     }
+
+    private String getReport(String[] names, LocalDate startDate,
+                             LocalDate endDate, int[] salaries) {
+        StringBuilder report = new StringBuilder("Report for period ")
+                .append(startDate.format(formatter))
+                .append(" - ")
+                .append(endDate.format(formatter));
+        for (int i = 0; i < names.length; i++) {
+            report.append(System.lineSeparator())
+                    .append(names[i])
+                    .append(" - ")
+                    .append(salaries[i]);
+        }
+        return report.toString();
+    }
+
 }