Fahrgemeinschaft be

backend/src/main/java/com/dhbw/get2gether/backend/widget/adapter/in/CarpoolWidgetController.java

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+package com.dhbw.get2gether.backend.widget.adapter.in;
+
+import com.dhbw.get2gether.backend.event.model.Event;
+import com.dhbw.get2gether.backend.widget.application.CarpoolWidgetService;
+import com.dhbw.get2gether.backend.widget.model.carpool.CarAddCommand;
+import com.dhbw.get2gether.backend.widget.model.carpool.CarpoolCreateCommand;
+import com.dhbw.get2gether.backend.widget.model.carpool.CarpoolWidget;
+import com.dhbw.get2gether.backend.widget.model.carpool.RiderAddCommand;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.security.oauth2.core.user.OAuth2User;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/event/{eventId}/widgets/carpool")
+public class CarpoolWidgetController {
+
+    public CarpoolWidgetService service;
+
+    public CarpoolWidgetController (CarpoolWidgetService service){
+        this.service = service;
+    }
+
+    @PostMapping("/")
+    public Event createCarpoolWidget(
+            @AuthenticationPrincipal OAuth2User principal,
+            @PathVariable String eventId,
+            @RequestBody CarpoolCreateCommand createCommand
+    ) {
+        return service.createCarpoolWidget(principal, eventId, createCommand);
+    }
+    @PostMapping("/{widgetId}/cars")
+    public CarpoolWidget addCar(
+            @AuthenticationPrincipal OAuth2User principal,
+            @PathVariable String eventId,
+            @PathVariable String widgetId,
+            @RequestBody CarAddCommand addCommand
+    ) {
+        return service.addCar(principal, eventId, widgetId, addCommand);
+    }
+    @DeleteMapping("/{widgetId}/cars/{carId}")
+    public CarpoolWidget removeCar(
+            @AuthenticationPrincipal OAuth2User principal,
+            @PathVariable String eventId,
+            @PathVariable String widgetId,
+            @PathVariable String carId
+    ) {
+        return service.removeCar(principal, eventId, widgetId, carId);
+    }
+    @PostMapping("/{widgetId}/cars/{carId}")
+    public CarpoolWidget addRider(
+            @AuthenticationPrincipal OAuth2User principal,
+            @PathVariable String eventId,
+            @PathVariable String widgetId,
+            @PathVariable String carId,
+            @RequestBody RiderAddCommand addCommand
+    ) {
+        return service.addRider(principal, eventId, widgetId,carId, addCommand);
+    }
+    @DeleteMapping("/{widgetId}/cars/{carId}/riders/{riderId}")
+    public CarpoolWidget removeRider(
+            @AuthenticationPrincipal OAuth2User principal,
+            @PathVariable String eventId,
+            @PathVariable String widgetId,
+            @PathVariable String carId,
+            @PathVariable String riderId
+    ) {
+        return service.removeRider(principal, eventId, widgetId, carId, riderId);
+    }
+
+}

backend/src/main/java/com/dhbw/get2gether/backend/widget/application/CarpoolWidgetService.java

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+package com.dhbw.get2gether.backend.widget.application;
+
+import com.dhbw.get2gether.backend.event.application.EventService;
+import com.dhbw.get2gether.backend.event.model.Event;
+import com.dhbw.get2gether.backend.exceptions.EntityNotFoundException;
+import com.dhbw.get2gether.backend.user.application.UserService;
+import com.dhbw.get2gether.backend.widget.application.mapper.CarpoolWidgetMapper;
+import com.dhbw.get2gether.backend.widget.model.carpool.*;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.security.core.AuthenticatedPrincipal;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDateTime;
+import java.util.Objects;
+import java.util.UUID;
+
+@Service
+public class CarpoolWidgetService extends AbstractWidgetService{
+
+    private final CarpoolWidgetMapper mapper;
+    private final UserService userService;
+
+    CarpoolWidgetService(EventService eventService, CarpoolWidgetMapper mapper, UserService userService) {
+        super(eventService);
+        this.mapper = mapper;
+        this.userService = userService;
+    }
+
+    @PreAuthorize("hasRole('USER')")
+    public Event createCarpoolWidget(AuthenticatedPrincipal principal, String eventId, CarpoolCreateCommand createCommand) {
+        Event event = getEventById(principal, eventId);
+        CarpoolWidget widget = mapper.mapToCarpoolWidget(createCommand).toBuilder()
+                .id(UUID.randomUUID().toString())
+                .creationDate(LocalDateTime.now())
+                .build();
+        return addWidget(principal, event, widget);
+    }
+
+    @PreAuthorize("hasRole('USER')")
+    public CarpoolWidget addCar(AuthenticatedPrincipal principal, String eventId, String widgetId, CarAddCommand addCommand) {
+        Event event = getEventById(principal, eventId);
+        CarpoolWidget widget = getWidgetFromEvent(event, widgetId);
+        Car car = mapper.mapToCar(addCommand).toBuilder()
+                .id(UUID.randomUUID().toString())
+                .driverId(userService.getUserByPrincipal(principal).getId())
+                .build();
+
+        widget.addCar(car);
+        return updateAndGetWidget(principal, event, widget);
+    }
+    @PreAuthorize("hasRole('USER')")
+    public CarpoolWidget removeCar(AuthenticatedPrincipal principal, String eventId, String widgetId, String carId) {
+        Event event = getEventById(principal, eventId);
+        CarpoolWidget widget = getWidgetFromEvent(event, widgetId);
+        Car car = widget.getCars().stream()
+                .filter(c -> Objects.equals(c.getId(), carId)).findFirst()
+                .orElseThrow(() -> new EntityNotFoundException("Car not found"));
+        if (!widget.removeCar(car)) {
+            throw new IllegalStateException("Failed to remove Car from Carpool widget");
+        }
+        return updateAndGetWidget(principal, event, widget);
+    }
+    @PreAuthorize("hasRole('USER')")
+    public CarpoolWidget addRider(AuthenticatedPrincipal principal, String eventId, String widgetId, String carId, RiderAddCommand addCommand) {
+        Event event = getEventById(principal, eventId);
+        CarpoolWidget widget = getWidgetFromEvent(event, widgetId);
+        Car car = widget.getCars().stream()
+                .filter(c -> Objects.equals(c.getId(), carId)).findFirst()
+                .orElseThrow(() -> new EntityNotFoundException("Car not found"));
+        Rider rider = mapper.mapToRider(addCommand).toBuilder()
+                .id(UUID.randomUUID().toString())
+                .userId(userService.getUserByPrincipal(principal).getId())
+                .build();
+        car.addRider(rider);
+        widget.addCar(car);
+        return updateAndGetWidget(principal, event, widget);
+    }
+    @PreAuthorize("hasRole('USER')")
+    public CarpoolWidget removeRider(AuthenticatedPrincipal principal, String eventId, String widgetId, String carId, String riderId) {
+        Event event = getEventById(principal, eventId);
+        CarpoolWidget widget = getWidgetFromEvent(event, widgetId);
+        Car car = widget.getCars().stream()
+                .filter(c -> Objects.equals(c.getId(), carId)).findFirst()
+                .orElseThrow(() -> new EntityNotFoundException("Car not found"));
+        Rider rider = car.getRiders().stream()
+                .filter(r -> Objects.equals(r.getId(), riderId)).findFirst()
+                .orElseThrow(() -> new EntityNotFoundException("Rider not found"));
+        if (!car.removeRider(rider)) {
+            throw new IllegalStateException("Failed to remove rider from car");
+        }
+        return updateAndGetWidget(principal, event, widget);
+    }
+
+}

backend/src/main/java/com/dhbw/get2gether/backend/widget/application/mapper/CarpoolWidgetMapper.java

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+package com.dhbw.get2gether.backend.widget.application.mapper;
+
+import com.dhbw.get2gether.backend.widget.model.carpool.*;
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+
+@Mapper(componentModel = "spring")
+public interface CarpoolWidgetMapper {
+    @Mapping(target = "id", ignore = true)
+    @Mapping(target = "creationDate", ignore = true)
+    @Mapping(target = "cars", ignore = true)
+    CarpoolWidget mapToCarpoolWidget(CarpoolCreateCommand createCommand);
+
+    @Mapping(target = "id", ignore = true)
+    @Mapping(target = "driverId", ignore = true)
+    @Mapping(target = "riders", ignore = true)
+    Car mapToCar(CarAddCommand command);
+
+    @Mapping(target = "id", ignore = true)
+    @Mapping(target = "userId", ignore = true)
+    Rider mapToRider(RiderAddCommand command);
+}

backend/src/main/java/com/dhbw/get2gether/backend/widget/model/carpool/Car.java

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+package com.dhbw.get2gether.backend.widget.model.carpool;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Builder(toBuilder = true)
+@Getter
+@AllArgsConstructor
+public class Car {
+    private String id;
+    private String driverId;
+    private String driverAdress;
+    private int anzahlPlaetze;
+    @Builder.Default
+    private List<Rider> riders = new ArrayList<>();
+
+    public void addRider(Rider rider) {
+        riders.add(rider);
+    }
+
+    public boolean removeRider(Rider rider) {
+        return riders.remove(rider);
+    }
+}

backend/src/main/java/com/dhbw/get2gether/backend/widget/model/carpool/CarAddCommand.java

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+package com.dhbw.get2gether.backend.widget.model.carpool;
+
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+@Builder(toBuilder = true)
+public class CarAddCommand {
+    private String driverAdress;
+    private int anzahlPlaetze;
+}

backend/src/main/java/com/dhbw/get2gether/backend/widget/model/carpool/CarpoolCreateCommand.java

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+package com.dhbw.get2gether.backend.widget.model.carpool;
+
+import com.dhbw.get2gether.backend.widget.model.map.Location;
+import com.dhbw.get2gether.backend.widget.model.map.LocationAddCommand;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+@Builder(toBuilder = true)
+public class CarpoolCreateCommand {
+}

backend/src/main/java/com/dhbw/get2gether/backend/widget/model/carpool/CarpoolWidget.java

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+package com.dhbw.get2gether.backend.widget.model.carpool;
+
+import com.dhbw.get2gether.backend.widget.model.Widget;
+import com.dhbw.get2gether.backend.widget.model.WidgetType;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+@Builder(toBuilder = true)
+@Getter
+@AllArgsConstructor
+public class CarpoolWidget extends Widget {
+    private String id;
+    private final LocalDateTime creationDate;
+    @Builder.Default
+    private List<Car> cars = new ArrayList<>();
+
+    @Override
+    public LocalDateTime getCreationDate() {
+        return creationDate;
+    }
+
+    @Override
+    public WidgetType getWidgetType() {
+        return WidgetType.CARPOOL;
+    }
+    public void addCar(Car car) {
+        cars.add(car);
+    }
+
+    public boolean removeCar(Car car) {
+        return cars.remove(car);
+    }
+}

backend/src/main/java/com/dhbw/get2gether/backend/widget/model/carpool/Rider.java

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+package com.dhbw.get2gether.backend.widget.model.carpool;
+
+import com.dhbw.get2gether.backend.widget.model.map.Location;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+@Builder(toBuilder = true)
+@Getter
+@AllArgsConstructor
+public class Rider {
+    private final String id;
+    private final String userId;
+    private final String pickupPlace;
+}

backend/src/main/java/com/dhbw/get2gether/backend/widget/model/carpool/RiderAddCommand.java

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+package com.dhbw.get2gether.backend.widget.model.carpool;
+
+import com.dhbw.get2gether.backend.widget.model.map.Location;
+import com.dhbw.get2gether.backend.widget.model.map.LocationAddCommand;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+
+@Builder(toBuilder = true)
+@Getter
+@AllArgsConstructor
+public class RiderAddCommand {
+    private final String pickupPlace;
+}