From 81ce4fe6d5cebff6054b70620b7b8130e9b8ad10 Mon Sep 17 00:00:00 2001
From: Tharre <tharre3@gmail.com>
Date: Thu, 24 May 2018 14:44:57 +0200
Subject: Implement rankVehicles from Andi #25963

---
 .../service/OperationServiceImpl.java              | 67 +++++++++++++++++++++-
 1 file changed, 65 insertions(+), 2 deletions(-)

(limited to 'src/main/java')

diff --git a/src/main/java/at/ac/tuwien/sepm/assignment/groupphase/einsatzverwaltung/service/OperationServiceImpl.java b/src/main/java/at/ac/tuwien/sepm/assignment/groupphase/einsatzverwaltung/service/OperationServiceImpl.java
index e1d6f29..a89e3b1 100644
--- a/src/main/java/at/ac/tuwien/sepm/assignment/groupphase/einsatzverwaltung/service/OperationServiceImpl.java
+++ b/src/main/java/at/ac/tuwien/sepm/assignment/groupphase/einsatzverwaltung/service/OperationServiceImpl.java
@@ -6,6 +6,7 @@ import at.ac.tuwien.sepm.assignment.groupphase.einsatzverwaltung.dto.Operation;
 import at.ac.tuwien.sepm.assignment.groupphase.einsatzverwaltung.dto.Operation.Severity;
 import at.ac.tuwien.sepm.assignment.groupphase.einsatzverwaltung.dto.Operation.Status;
 import at.ac.tuwien.sepm.assignment.groupphase.einsatzverwaltung.dto.Vehicle;
+import at.ac.tuwien.sepm.assignment.groupphase.einsatzverwaltung.dto.Vehicle.VehicleType;
 import at.ac.tuwien.sepm.assignment.groupphase.exception.ElementNotFoundException;
 import at.ac.tuwien.sepm.assignment.groupphase.exception.InvalidOperationException;
 import at.ac.tuwien.sepm.assignment.groupphase.exception.InvalidVehicleException;
@@ -13,12 +14,17 @@ import at.ac.tuwien.sepm.assignment.groupphase.exception.PersistenceException;
 import at.ac.tuwien.sepm.assignment.groupphase.exception.ServiceException;
 import java.lang.invoke.MethodHandles;
 import java.time.Instant;
+import java.util.ArrayList;
 import java.util.EnumSet;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 import java.util.SortedSet;
+import java.util.TreeSet;
+import java.util.function.Predicate;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.stereotype.Service;
@@ -30,10 +36,13 @@ public class OperationServiceImpl implements OperationService {
 
     private final OperationDAO operationDAO;
     private final VehicleDAO vehicleDAO;
+    private final VehicleService vehicleService;
 
-    public OperationServiceImpl(OperationDAO operationDAO, VehicleDAO vehicleDAO) {
+    public OperationServiceImpl(
+            OperationDAO operationDAO, VehicleDAO vehicleDAO, VehicleService vehicleService) {
         this.operationDAO = operationDAO;
         this.vehicleDAO = vehicleDAO;
+        this.vehicleService = vehicleService;
     }
 
     @Override
@@ -124,7 +133,61 @@ public class OperationServiceImpl implements OperationService {
     @Override
     public SortedSet<Vehicle> rankVehicles(String opCode)
             throws InvalidOperationException, ServiceException {
-        throw new UnsupportedOperationException();
+        Set<Vehicle> vehicles =
+                vehicleService.list(EnumSet.complementOf(EnumSet.of(Vehicle.Status.ABGEMELDET)));
+
+        List<Predicate<Vehicle>> priorities = new ArrayList<>();
+        Predicate<Vehicle> ktw = v -> v.type() == VehicleType.KTW;
+        Predicate<Vehicle> rtwNoNEF = v -> v.type() == VehicleType.RTW && !v.hasNef();
+        Predicate<Vehicle> rtwNEF = v -> v.type() == VehicleType.RTW && v.hasNef();
+        Predicate<Vehicle> nef = v -> v.type() == VehicleType.NEF;
+        Predicate<Vehicle> nah = v -> v.type() == VehicleType.NAH;
+
+        switch (extractSeverityFromOpCode(opCode)) {
+            case A:
+                // fallthrough
+            case B:
+                // fallthrough
+            case O:
+                priorities.add(ktw);
+                priorities.add(rtwNoNEF);
+                priorities.add(rtwNEF);
+                break;
+            case C:
+                priorities.add(rtwNEF);
+                priorities.add(rtwNoNEF);
+                priorities.add(ktw);
+                break;
+            case D:
+                priorities.add(rtwNEF);
+                priorities.add(nef);
+                priorities.add(nah);
+                priorities.add(rtwNoNEF);
+                priorities.add(ktw);
+                break;
+            case E:
+                priorities.add(nah);
+                priorities.add(nef);
+                priorities.add(rtwNEF);
+                priorities.add(rtwNoNEF);
+                priorities.add(ktw);
+                break;
+        }
+
+        return vehicles.stream()
+                .sorted(
+                        (v1, v2) -> {
+                            for (Predicate<Vehicle> priority : priorities) {
+                                if (priority.test(v1)) {
+                                    return -1;
+                                }
+                                if (priority.test(v2)) {
+                                    return +1;
+                                }
+                            }
+                            return 0;
+                        })
+                .collect(Collectors.toCollection(TreeSet::new));
     }
 
     @Override
-- 
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