sallary info solution

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

@@ -1,7 +1,60 @@
 package core.basesyntax;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.HashMap;
+import java.util.Map;
+
 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 from = LocalDate.parse(dateFrom, formatter);
+        LocalDate to = LocalDate.parse(dateTo, formatter);
+
+        Map<String, Integer> salary = new HashMap<>();
+        for (String name : names) {
+            salary.put(name, 0);
+        }
+
+        for (String row : data) {
+            String[] parts = row.split(" ");
+            LocalDate currentDate = LocalDate.parse(parts[0], formatter);
+            if (currentDate.isBefore(from) || currentDate.isAfter(to)) {
+                continue;
+            }
+
+            String name = parts[1];
+
+            if (!salary.containsKey(name)) {
+                continue;
+            }
+
+            int hours = Integer.parseInt(parts[2]);
+            int rate = Integer.parseInt(parts[3]);
+            int earned = hours * rate;
+            salary.put(name, salary.get(name) + earned);
+        }
+
+        StringBuilder builder = new StringBuilder();
+
+        builder.append("Report for period ")
+                .append(dateFrom)
+                .append(" - ")
+                .append(dateTo)
+                .append(System.lineSeparator());
+
+        for (int i = 0; i < names.length; i++) {
+            builder.append(names[i])
+                    .append(" - ")
+                    .append(salary.get(names[i]));
+
+            if (i < names.length - 1) {
+                builder.append(System.lineSeparator());
+            }
+
+        }
+        return builder.toString();
     }
 }