using System;
using Model;

namespace TestDataManager;

public class DataManagerTest_WithTheoryDataAndMemberData4
{
    [Theory]
    [MemberData(nameof(TestData_WithTheoryDataAndMemberData4.GetTestData_BorrowBook), parameters: true, MemberType = typeof(TestData_WithTheoryDataAndMemberData4))]
    public async void TestBorrowBook_Success(bool expectedResult, Book bookToBorrow, Person borrower, IDataManager dataManager)
    {
        bool result = await dataManager.BorrowBook(bookToBorrow, borrower);
        Book? book = (await dataManager.GetBooksByIsbn(bookToBorrow?.Isbn, 0, 100)).SingleOrDefault();
        Person? person = (await dataManager.GetPersonsByName(borrower?.LastName, 0, 100)).SingleOrDefault();
    
        Assert.Equal(expectedResult, result);

        Assert.NotNull(book);
        Assert.NotNull(person);
        Assert.Contains(book, person.Books);
        Assert.Equal(person, book.Borrower);
    }

    [Theory]
    [MemberData(nameof(TestData_WithTheoryDataAndMemberData4.GetTestData_BorrowBook), parameters: false, MemberType = typeof(TestData_WithTheoryDataAndMemberData4))]
    public async void TestBorrowBook_Fail(bool expectedResult, Book bookToBorrow, Person borrower, IDataManager dataManager)
    {
        bool result = await dataManager.BorrowBook(bookToBorrow, borrower);
        Book? book = (await dataManager.GetBooksByIsbn(bookToBorrow?.Isbn, 0, 100)).SingleOrDefault();
        Person? person = (await dataManager.GetPersonsByName(borrower?.LastName, 0, 100)).SingleOrDefault();
    
        Assert.Equal(expectedResult, result);

        if(person != null && book != null)
        {
            Assert.DoesNotContain(book, person.Books);
            Assert.NotEqual(person, book.Borrower);
        }
    }
}