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 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
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 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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package org.apache.causeway.testdomain.jpa;

import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;

import org.springframework.stereotype.Service;

import static org.junit.jupiter.api.Assertions.assertEquals;

import org.apache.causeway.testdomain.fixtures.EntityTestFixtures;
import org.apache.causeway.testdomain.fixtures.InventoryJaxbVm;
import org.apache.causeway.testdomain.jpa.entities.JpaBook;
import org.apache.causeway.testdomain.jpa.entities.JpaInventory;
import org.apache.causeway.testdomain.jpa.entities.JpaProduct;
import org.apache.causeway.testdomain.util.dto.BookDto;
import org.apache.causeway.testdomain.util.dto.IBook;

import lombok.val;

@Service
public class JpaTestFixtures extends EntityTestFixtures {

    public void addABookTo(final JpaInventory inventory) {
        inventory.getProducts()
        .add(JpaBook.of("Sample Book-1", "A sample book for testing.", 39., "Sample Author", "ISBN-A",
                "Sample Publisher"));
    }

    @Override
    protected Class<? extends InventoryJaxbVm<? extends IBook>> vmClass() {
        return JpaInventoryJaxbVm.class;
    }

    // -- FIXTURES

    @Override
    public void clearRepository() {
        repository.allInstances(JpaInventory.class).forEach(repository::remove);
        repository.allInstances(JpaBook.class).forEach(repository::remove);
        repository.allInstances(JpaProduct.class).forEach(repository::remove);
    }

    @Override
    public void add3Books() {

        // given - expected pre condition: no inventories
        assertEquals(0, repository.allInstances(JpaInventory.class).size());

        // setup sample Inventory with 3 Books
        SortedSet<JpaProduct> products = new TreeSet<>();

        BookDto.samples()
        .map(JpaBook::fromDto)
        .forEach(products::add);

        val inventory = new JpaInventory("Sample Inventory", products);
        repository.persistAndFlush(inventory);
    }

    @Override
    public Object addBook(BookDto bookDto) {
        return repository.persistAndFlush(JpaBook.fromDto(bookDto));
    }

    @Override
    public void addInventory(Set<?> books) {
        val inventory = new JpaInventory("Sample Inventory", (Set<JpaProduct>) books);
        repository.persistAndFlush(inventory);
    }


}
