[API] Add RentalController. Add Rental model, RentalService and other…

… required components.

src/main/java/service/carsharing/controller/RentalController.java

@@ -0,0 +1,50 @@
+package service.carsharing.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.Authentication;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import service.carsharing.dto.rental.RentalRequestDto;
+import service.carsharing.dto.rental.RentalResponseDto;
+import service.carsharing.service.RentalService;
+
+@Tag(name = "Rental managing", description = "Endpoint to rentals managing")
+@RequiredArgsConstructor
+@RestController
+@RequestMapping("api/rentals")
+public class RentalController {
+    private final RentalService rentalService;
+
+    @PostMapping()
+    @Operation(summary = "Create a new rental", description = "Create a new rental")
+    public RentalResponseDto addRental(@RequestBody @Valid RentalRequestDto requestDto) {
+        return rentalService.addNewRental(requestDto);
+    }
+
+    @GetMapping("/{userId}/{isActive}")
+    @Operation(summary = "Get all active rentals",
+            description = "Get list of all active rentals for specify user")
+    public List<RentalResponseDto> getAllActiveRentals(@PathVariable Long userId,
+                                                       @PathVariable boolean isActive) {
+        return rentalService.getAllCurrentRentals(userId, isActive);
+    }
+
+    @GetMapping("/{id}")
+    @Operation(summary = "Get rental by id", description = "Get specify rental by id")
+    public RentalResponseDto getRental(@PathVariable Long id, Authentication authentication) {
+        return rentalService.getRentalById(id, authentication.getName());
+    }
+
+    @PostMapping("/{id}/return")
+    public RentalResponseDto returnRental(@PathVariable Long id, Authentication authentication) {
+        return rentalService.returnRental(id, authentication.getName());
+    }
+}

src/main/java/service/carsharing/dto/rental/RentalRequestDto.java

@@ -0,0 +1,16 @@
+package service.carsharing.dto.rental;
+
+import jakarta.validation.constraints.NotNull;
+import java.time.LocalDate;
+
+public record RentalRequestDto(
+        @NotNull
+        LocalDate rentalDate,
+        @NotNull
+        LocalDate returnDate,
+        @NotNull
+        Long carId,
+        @NotNull
+        Long userId
+) {
+}

src/main/java/service/carsharing/dto/rental/RentalResponseDto.java

@@ -0,0 +1,12 @@
+package service.carsharing.dto.rental;
+
+import java.time.LocalDate;
+
+public record RentalResponseDto(
+        LocalDate rentalDate,
+        LocalDate returnDate,
+        LocalDate actualReturnDate,
+        Long carId,
+        Long userId
+) {
+}

src/main/java/service/carsharing/mapper/RentalMapper.java

@@ -0,0 +1,19 @@
+package service.carsharing.mapper;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import service.carsharing.config.MapperConfig;
+import service.carsharing.dto.rental.RentalRequestDto;
+import service.carsharing.dto.rental.RentalResponseDto;
+import service.carsharing.model.Rental;
+
+@Mapper(config = MapperConfig.class)
+public interface RentalMapper {
+    @Mapping(target = "user.id", source = "userId")
+    @Mapping(target = "car.id", source = "carId")
+    Rental toModel(RentalRequestDto requestDto);
+
+    @Mapping(target = "userId", source = "user.id")
+    @Mapping(target = "carId", source = "car.id")
+    RentalResponseDto toDto(Rental rental);
+}

src/main/java/service/carsharing/model/Rental.java

@@ -0,0 +1,47 @@
+package service.carsharing.model;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.PreRemove;
+import jakarta.persistence.Table;
+import java.time.LocalDate;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+
+@Data
+@Entity
+@Table(name = "rentals")
+public class Rental {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    @Column(nullable = false)
+    private LocalDate rentalDate;
+    @Column(nullable = false)
+    private LocalDate returnDate;
+    private LocalDate actualReturnDate;
+    @ToString.Exclude
+    @EqualsAndHashCode.Exclude
+    @ManyToOne
+    @JoinColumn(name = "car_id", nullable = false)
+    private Car car;
+    @ToString.Exclude
+    @EqualsAndHashCode.Exclude
+    @ManyToOne
+    @JoinColumn(name = "user_id", nullable = false)
+    private User user;
+    @Column(nullable = false)
+    private boolean deleted = false;
+
+    @PreRemove
+    public void preRemove() {
+        this.deleted = true;
+    }
+
+}

src/main/java/service/carsharing/repository/RentalRepository.java

@@ -0,0 +1,12 @@
+package service.carsharing.repository;
+
+import java.util.List;
+import java.util.Optional;
+import org.springframework.data.jpa.repository.JpaRepository;
+import service.carsharing.model.Rental;
+
+public interface RentalRepository extends JpaRepository<Rental, Long> {
+    Optional<Rental> findByIdAndUserIdAndDeletedFalse(Long rentalId, Long userId);
+
+    List<Rental> getAllByUserIdAndDeletedFalse(Long id);
+}

src/main/java/service/carsharing/service/RentalService.java

@@ -0,0 +1,15 @@
+package service.carsharing.service;
+
+import java.util.List;
+import service.carsharing.dto.rental.RentalRequestDto;
+import service.carsharing.dto.rental.RentalResponseDto;
+
+public interface RentalService {
+    RentalResponseDto addNewRental(RentalRequestDto requestDto);
+
+    List<RentalResponseDto> getAllCurrentRentals(Long userId, boolean isActive);
+
+    RentalResponseDto getRentalById(Long id, String email);
+
+    RentalResponseDto returnRental(Long rentalId, String email);
+}

src/main/java/service/carsharing/service/impl/RentalServiceImpl.java

@@ -0,0 +1,86 @@
+package service.carsharing.service.impl;
+
+import jakarta.persistence.EntityNotFoundException;
+import java.time.LocalDate;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import service.carsharing.dto.rental.RentalRequestDto;
+import service.carsharing.dto.rental.RentalResponseDto;
+import service.carsharing.mapper.RentalMapper;
+import service.carsharing.model.Car;
+import service.carsharing.model.Rental;
+import service.carsharing.model.User;
+import service.carsharing.repository.CarRepository;
+import service.carsharing.repository.RentalRepository;
+import service.carsharing.repository.UserRepository;
+import service.carsharing.service.RentalService;
+
+@RequiredArgsConstructor
+@Service
+public class RentalServiceImpl implements RentalService {
+    private final RentalRepository rentalRepository;
+    private final UserRepository userRepository;
+    private final CarRepository carRepository;
+    private final RentalMapper rentalMapper;
+
+    @Override
+    @Transactional
+    public RentalResponseDto addNewRental(RentalRequestDto requestDto) {
+        Car car = getCarById(requestDto.carId());
+        car.setInventory(car.getInventory() - 1);
+        carRepository.save(car);
+        return rentalMapper.toDto(rentalRepository.save(rentalMapper.toModel(requestDto)));
+    }
+
+    @Override
+    public List<RentalResponseDto> getAllCurrentRentals(Long userId, boolean isActive) {
+        List<Rental> allRentalsByUser = rentalRepository.getAllByUserIdAndDeletedFalse(userId);
+        if (isActive) {
+            return allRentalsByUser.stream()
+                    .filter(rental -> rental.getActualReturnDate() == null)
+                    .map(rentalMapper::toDto)
+                    .toList();
+        }
+        return allRentalsByUser.stream()
+                .filter(rental -> rental.getActualReturnDate() != null)
+                .map(rentalMapper::toDto)
+                .toList();
+    }
+
+    @Override
+    public RentalResponseDto getRentalById(Long id, String email) {
+        Rental rental = getRentalByIdAndUserId(id, getUserByEmail(email).getId());
+        return rentalMapper.toDto(rental);
+    }
+
+    @Override
+    @Transactional
+    public RentalResponseDto returnRental(Long rentalId, String email) {
+        Rental rental = getRentalByIdAndUserId(rentalId, getUserByEmail(email).getId());
+        Car car = getCarById(rental.getCar().getId());
+        car.setInventory(car.getInventory() + 1);
+        rental.setActualReturnDate(LocalDate.now());
+        return rentalMapper.toDto(rentalRepository.save(rental));
+    }
+
+    private User getUserByEmail(String email) {
+        return userRepository.findByEmail(email).orElseThrow(
+                () -> new EntityNotFoundException("Can't find user with email: " + email)
+        );
+    }
+
+    private Rental getRentalByIdAndUserId(Long rentalId, Long userId) {
+        return rentalRepository
+                .findByIdAndUserIdAndDeletedFalse(rentalId, userId).orElseThrow(
+                        () -> new EntityNotFoundException("Can't find rental with id: " + rentalId)
+                );
+    }
+
+    private Car getCarById(Long id) {
+        return carRepository.findByIdAndDeletedFalse(id).orElseThrow(
+                () -> new EntityNotFoundException("Can't find car with id: " + id)
+        );
+    }
+}

src/main/resources/db/changelog/changes/01-create-user-table.yaml

@@ -37,5 +37,6 @@ databaseChangeLog:
               - column:
                   name: deleted
                   type: boolean
+                  value: 0
                   constraints:
                     nullable: false

src/main/resources/db/changelog/changes/06-create-cars-table.yaml

@@ -41,5 +41,6 @@ databaseChangeLog:
               - column:
                   name: deleted
                   type: boolean
+                  value: 0
                   constraints:
                     nullable: false

src/main/resources/db/changelog/changes/07-create-rentals-table.yaml

@@ -0,0 +1,48 @@
+databaseChangeLog:
+  - changeSet:
+      id: create-rentals-table
+      author: antonbabych
+      changes:
+        - createTable:
+            tableName: rentals
+            columns:
+              - column:
+                  name: id
+                  type: bigint
+                  autoIncrement: true
+                  constraints:
+                    primaryKey: true
+                    nullable: false
+              - column:
+                  name: rental_date
+                  type: date
+                  constraints:
+                    nullable: false
+              - column:
+                  name: return_date
+                  type: date
+                  constraints:
+                    nullable: false
+              - column:
+                  name: actual_return_date
+                  type: date
+              - column:
+                  name: car_id
+                  type: bigint
+                  constraints:
+                    nullable: false
+                    foreignKeyName: fk_rentals_cars
+                    references: cars(id)
+              - column:
+                  name: user_id
+                  type: bigint
+                  constraints:
+                    nullable: false
+                    foreignKeyName: fk_rentals_users
+                    references: users(id)
+              - column:
+                  name: deleted
+                  type: boolean
+                  value: 0
+                  constraints:
+                    nullable: false

src/main/resources/db/changelog/db.changelog-master.yaml

@@ -10,4 +10,6 @@ databaseChangeLog:
   - include:
       file: db/changelog/changes/05-create-default-manager-user.yaml
   - include:
-      file: db/changelog/changes/06-create-cars-table.yaml
+      file: db/changelog/changes/06-create-cars-table.yaml
+  - include:
+      file: db/changelog/changes/07-create-rentals-table.yaml