adding booking component and api

src/main/java/com/elmorabit/battlebrain/repository/SeatRepository.java

@@ -5,10 +5,13 @@
 import org.springframework.data.jpa.repository.*;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 /**
  * Spring Data  repository for the Seat entity.
  */
 @SuppressWarnings("unused")
 @Repository
 public interface SeatRepository extends JpaRepository<Seat, Long> {
+    List<Seat> findAllByAreaId(final Long area_id);
 }

src/main/java/com/elmorabit/battlebrain/service/BookingService.java

@@ -0,0 +1,19 @@
+package com.elmorabit.battlebrain.service;
+
+import com.elmorabit.battlebrain.service.dto.BookingDTO;
+import com.elmorabit.battlebrain.service.dto.SeatDTO;
+
+import java.util.List;
+
+/**
+ * Service Interface for managing {@link com.elmorabit.battlebrain.domain.Reservation}.
+ */
+public interface BookingService {
+
+    /**
+     * Get all the reservations.
+     *
+     * @return the list of entities.
+     */
+    List<SeatDTO> getAllAvailableSeats(BookingDTO bookingDTO);
+}

src/main/java/com/elmorabit/battlebrain/service/dto/BookingDTO.java

@@ -0,0 +1,80 @@
+package com.elmorabit.battlebrain.service.dto;
+
+import javax.validation.constraints.NotNull;
+import java.io.Serializable;
+import java.time.Instant;
+
+/**
+ * A DTO for the {@link com.elmorabit.battlebrain.domain.Reservation} entity.
+ */
+public class BookingDTO implements Serializable {
+
+    private Long id;
+
+    @NotNull
+    private Instant startDate;
+
+    @NotNull
+    private Instant endDate;
+
+
+    private Long areaId;
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Instant getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(Instant startDate) {
+        this.startDate = startDate;
+    }
+
+    public Instant getEndDate() {
+        return endDate;
+    }
+
+    public void setEndDate(Instant endDate) {
+        this.endDate = endDate;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (!(o instanceof BookingDTO)) {
+            return false;
+        }
+
+        return id != null && id.equals(((BookingDTO) o).id);
+    }
+
+    @Override
+    public int hashCode() {
+        return 31;
+    }
+
+    // prettier-ignore
+    @Override
+    public String toString() {
+        return "ReservationDTO{" +
+            "id=" + getId() +
+            ", startDate='" + getStartDate() + "'" +
+            ", endDate='" + getEndDate() + "'" +
+            "}";
+    }
+
+    public Long getAreaId() {
+        return areaId;
+    }
+
+    public void setAreaId(final Long areaId) {
+        this.areaId = areaId;
+    }
+}

src/main/java/com/elmorabit/battlebrain/service/impl/BookingServiceImpl.java

@@ -0,0 +1,60 @@
+package com.elmorabit.battlebrain.service.impl;
+
+import com.elmorabit.battlebrain.domain.Reservation;
+import com.elmorabit.battlebrain.domain.Seat;
+import com.elmorabit.battlebrain.repository.ReservationRepository;
+import com.elmorabit.battlebrain.repository.SeatRepository;
+import com.elmorabit.battlebrain.service.BookingService;
+import com.elmorabit.battlebrain.service.dto.BookingDTO;
+import com.elmorabit.battlebrain.service.dto.SeatDTO;
+import com.elmorabit.battlebrain.service.mapper.ReservationMapper;
+import com.elmorabit.battlebrain.service.mapper.SeatMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+/**
+ * Service Implementation for managing {@link Reservation}.
+ */
+@Service
+@Transactional
+public class BookingServiceImpl implements BookingService {
+
+    private final Logger log = LoggerFactory.getLogger(BookingServiceImpl.class);
+
+    private final ReservationRepository reservationRepository;
+
+    private final ReservationMapper reservationMapper;
+
+    private final SeatRepository seatRepository;
+
+    private final SeatMapper seatMapper;
+
+
+    public BookingServiceImpl(ReservationRepository reservationRepository, ReservationMapper reservationMapper, final SeatRepository seatRepository, final SeatMapper seatMapper) {
+        this.reservationRepository = reservationRepository;
+        this.reservationMapper = reservationMapper;
+        this.seatRepository = seatRepository;
+        this.seatMapper = seatMapper;
+    }
+
+    @Override
+    public List<SeatDTO> getAllAvailableSeats(final BookingDTO bookingDTO) {
+
+
+        List<Seat> seatList;
+
+        if (Objects.nonNull(bookingDTO.getAreaId())) {
+            seatList = seatRepository.findAllByAreaId(bookingDTO.getAreaId());
+        } else {
+            seatList = seatRepository.findAll();
+        }
+
+        return seatList.stream().map(seatMapper::toDto).collect(Collectors.toList());
+    }
+}

src/main/java/com/elmorabit/battlebrain/web/rest/BookingController.java

@@ -0,0 +1,61 @@
+package com.elmorabit.battlebrain.web.rest;
+
+import com.elmorabit.battlebrain.service.BookingService;
+import com.elmorabit.battlebrain.service.dto.BookingDTO;
+import com.elmorabit.battlebrain.service.dto.SeatDTO;
+
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import javax.validation.ValidationException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.time.Instant;
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * REST controller for managing {@link com.elmorabit.battlebrain.domain.Reservation}.
+ */
+@RestController
+@RequestMapping("/api")
+public class BookingController {
+
+    private final Logger log = LoggerFactory.getLogger(BookingController.class);
+
+    private static final String ENTITY_NAME = "reservation";
+
+    @Value("${jhipster.clientApp.name}")
+    private String applicationName;
+
+    private final BookingService bookingService;
+
+    public BookingController(BookingService bookingService) {
+        this.bookingService = bookingService;
+    }
+
+    /**
+     * {@code POST  /reservations} : Create a new reservation.
+     *
+     * @param bookingDTO the bookingDTO to create.
+     * @return the {@link ResponseEntity} with status {@code 201 (Created)} and with body the new bookingDTO, or with status {@code 400 (Bad Request)} if the reservation has already an ID.
+     * @throws URISyntaxException if the Location URI syntax is incorrect.
+     */
+    @PostMapping("/booking")
+    public ResponseEntity<List<SeatDTO>> createReservation(@Valid @RequestBody BookingDTO bookingDTO) throws URISyntaxException {
+        log.debug("REST request to save Reservation : {}", bookingDTO);
+        final Instant startDate = bookingDTO.getStartDate();
+        final Instant endDate = bookingDTO.getEndDate();
+        if (Objects.isNull(startDate) || Objects.isNull(endDate) || startDate.compareTo(Instant.now()) <= 0 || startDate.compareTo(endDate) >= 0) {
+            throw new ValidationException("invalid data");
+        }
+        List<SeatDTO> result = bookingService.getAllAvailableSeats(bookingDTO);
+        return ResponseEntity.ok(result);
+    }
+}

src/main/resources/config/liquibase/changelog/20200725130021_added_entity_Seat.xml

@@ -52,27 +52,6 @@
     </changeSet>
     <!-- jhipster-needle-liquibase-add-changeset - JHipster will add changesets here -->
 
-    <!--
-        Load sample data generated with Faker.js
-        - This data can be easily edited using a CSV editor (or even MS Excel) and
-          is located in the 'src/main/resources/config/liquibase/fake-data' directory
-        - By default this data is applied when running with the JHipster 'dev' profile.
-          This can be customized by adding or removing 'faker' in the 'spring.liquibase.contexts'
-          Spring Boot configuration key.
-    -->
-    <changeSet id="20200725130021-1-data" author="jhipster" context="faker">
-        <loadData
-                  file="config/liquibase/data/seat.csv"
-                  separator=";"
-                  tableName="seat">
-            <column name="id" type="numeric"/>
-            <column name="number" type="numeric"/>
-            <column name="status" type="string"/>
-            <column name="aisle_seat" type="boolean"/>
-            <column name="window_seat" type="boolean"/>
-            <column name="middle_seat" type="boolean"/>
-            <!-- jhipster-needle-liquibase-add-loadcolumn - JHipster (and/or extensions) can add load columns here -->
-        </loadData>
-    </changeSet>
+
 
 </databaseChangeLog>

src/main/resources/config/liquibase/changelog/20200725130021_added_entity_constraints_Seat.xml

@@ -7,7 +7,7 @@
         Added the constraints for entity Seat.
     -->
     <changeSet id="20200725130021-2" author="jhipster">
-        
+
         <addForeignKeyConstraint baseColumnNames="right_seat_id"
                                  baseTableName="seat"
                                  constraintName="fk_seat_right_seat_id"
@@ -33,4 +33,30 @@
                                  referencedTableName="area"/>
 
     </changeSet>
+
+    <changeSet id="20200725130021-1-data" author="jhipster">
+        <loadData
+            file="config/liquibase/data/seat.csv"
+            separator=";"
+            tableName="seat">
+            <column name="id" type="numeric"/>
+            <column name="number" type="numeric"/>
+            <column name="status" type="string"/>
+            <column name="aisle_seat" type="boolean"/>
+            <column name="window_seat" type="boolean"/>
+            <column name="middle_seat" type="boolean"/>
+            <column name="area_id" type="numeric"/>
+            <!-- jhipster-needle-liquibase-add-loadcolumn - JHipster (and/or extensions) can add load columns here -->
+        </loadData>
+        <loadUpdateData
+            file="config/liquibase/data/seat-to-seat.csv"
+            separator=";"
+            tableName="seat" primaryKey="id" onlyUpdate="true">
+            <column name="id" type="numeric"/>
+            <column name="right_seat_id" type="numeric"/>
+            <column name="left_seat_id" type="numeric"/>
+            <column name="front_seat_id" type="numeric"/>
+            <!-- jhipster-needle-liquibase-add-loadcolumn - JHipster (and/or extensions) can add load columns here -->
+        </loadUpdateData>
+    </changeSet>
 </databaseChangeLog>

src/main/resources/config/liquibase/data/area.csv

@@ -1,4 +1,4 @@
 id;name
 1;Sale Newton
-2;Sale Enshtien
+2;Sale Einstein
 3;Sale Rabat

src/main/resources/config/liquibase/data/seat-to-seat.csv

@@ -0,0 +1,48 @@
+id  ;right_seat_id ; left_seat_id;front_seat_id
+1   ;null;null;null
+2   ;null;null;null
+3   ;null;null;null
+4   ;null;null;null
+5   ;null;null;null
+6   ;null;null;null
+7   ;null;null;null
+8   ;null;null;null
+9   ;null;null;null
+10  ;null;null;null
+11  ;null;null;null
+12  ;null;null;null
+13  ;null;null;null
+14  ;null;null;null
+21  ;null;null;null
+22  ;null;null;null
+23  ;null;null;null
+24  ;null;null;null
+25  ;null;null;null
+26  ;null;null;null
+27  ;null;null;null
+28  ;null;null;null
+29  ;null;null;null
+210 ;null;null;null
+211 ;null;null;null
+212 ;null;null;null
+111 ;112 ;null;114
+112 ;113 ;111 ;115
+113 ;null;112 ;116
+114 ;115 ;null;111
+115 ;116 ;114 ;112
+116 ;null;115 ;113
+117 ;118 ;null;119
+118 ;117 ;null;1110
+119 ;null;1110;117
+1110;119 ;null;118
+1111;null;1112;1113
+1112;1111;null;1114
+1113;1114;null;1111
+1114;null;1113;1112
+1115;null;1116;1118
+1116;1115;1117;1119
+1117;1116;null;1120
+1118;1119;null;1115
+1119;1120;1118;1116
+1120;null;1119;1117
+