using Ardalis.Specification.EntityFrameworkCore;
using DD.Persistence.Database.Entity;
using DD.Persistence.Filter.Models;
using DD.Persistence.Filter.Models.Enumerations;
using DD.Persistence.Models;
using DD.Persistence.Database.Postgres.Helpers;

namespace DD.Persistence.Test;
public class FilterBuilderShould
{
    private readonly SpecificationEvaluator SpecificationEvaluator;
    public FilterBuilderShould()
    {
        this.SpecificationEvaluator = new SpecificationEvaluator();
    }

    [Fact]
    public void TestFilterBuilding()
    {
        //arrange
        var discriminatorId = Guid.NewGuid();
        var dataScheme = new DataScheme()
        {
            DiscriminatorId = discriminatorId,
            PropNames = ["A", "B", "C"],
            PropTypes = [PropTypeEnum.DateTime, PropTypeEnum.Double, PropTypeEnum.String]
        };
        var filterDate = DateTime.Now.AddMinutes(-1);
        var root = new TVertex(
            OperationEnum.Or,
            new TVertex(
                OperationEnum.And,
                new TLeaf(OperationEnum.Greate, "A", filterDate),
                new TLeaf(OperationEnum.Less, "B", 2.22)
            ),
            new TLeaf(OperationEnum.Equal, "C", "IsEqualText")
        );
        var queryableData = new[]
        {
            new TimestampedValues { 
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-1),
                Values = new object[] { filterDate.AddMinutes(-1), 200, "IsEqualText" }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-2),
                Values = new object[] { filterDate.AddMinutes(1), 2.21, "IsNotEqualText" }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-3),
                Values = new object[] { filterDate.AddMinutes(-1), 2.22, "IsNotEqualText" }, // false
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-4),
                Values = new object[] { filterDate.AddMinutes(-1), 2.21, "IsNotEqualText" }, // false
                DataScheme = dataScheme
            }
        }
        .AsQueryable();

        //act
        var specification = dataScheme.BuildFilter<TimestampedValues>(root);

        //assert
        Assert.NotNull(specification);

        var query = SpecificationEvaluator.GetQuery(queryableData, specification);
        var result = query.ToList();

        Assert.NotNull(result);
        Assert.NotEmpty(result);

        var expectedCount = 2;
        var actualCount = result.Count();
        Assert.Equal(expectedCount, actualCount);
    }

    [Fact]
    public void TestFilterOperations()
    {
        //arrange
        var discriminatorId = Guid.NewGuid();
        var dataScheme = new DataScheme()
        {
            DiscriminatorId = discriminatorId,
            PropNames = ["A"],
            PropTypes = [PropTypeEnum.Double]
        };
        var root = new TVertex(
            OperationEnum.Or,
            new TVertex(
                OperationEnum.And,
                new TVertex(
                    OperationEnum.And,
                    new TVertex(
                        OperationEnum.And,
                        new TVertex(
                            OperationEnum.And,
                            new TLeaf(OperationEnum.Less, "A", 2),
                            new TLeaf(OperationEnum.LessOrEqual, "A", 1.99)
                        ),
                        new TLeaf(OperationEnum.GreateOrEqual, "A", 1.97)
                    ),
                    new TLeaf(OperationEnum.Greate, "A", 1.96)
                ),
                new TLeaf(OperationEnum.NotEqual, "A", 1.98)
            ),
            new TLeaf(OperationEnum.Equal, "A", 1)
        );
        var queryableData = new[]
        {
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-1),
                Values = new object[] { 1 }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-2),
                Values = new object[] { 1.96 }, // false
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-3),
                Values = new object[] { 1.97 }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-4),
                Values = new object[] { 1.98 }, // false
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-5),
                Values = new object[] { 1.99 }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-6),
                Values = new object[] { 2 }, // false
                DataScheme = dataScheme
            }
        }
        .AsQueryable();

        //act
        var specification = dataScheme.BuildFilter<TimestampedValues>(root);

        //assert
        Assert.NotNull(specification);

        var query = SpecificationEvaluator.GetQuery(queryableData, specification);
        var result = query.ToList();

        Assert.NotNull(result);
        Assert.NotEmpty(result);

        var expectedCount = 3;
        var actualCount = result.Count();
        Assert.Equal(expectedCount, actualCount);
    }

    [Fact]
    public void TestFilterValues()
    {
        //arrange
        var discriminatorId = Guid.NewGuid();
        var filterDate = DateTimeOffset.Now;
        var dataScheme = new DataScheme()
        {
            DiscriminatorId = discriminatorId,
            PropNames = ["A", "B", "C", "D"],
            PropTypes = [PropTypeEnum.Double, PropTypeEnum.Double, PropTypeEnum.String, PropTypeEnum.DateTime]
        };
        var root = new TVertex(
            OperationEnum.Or,
            new TVertex(
                OperationEnum.Or,
                new TVertex(
                    OperationEnum.Or,
                    new TLeaf(OperationEnum.Equal, "A", 1),
                    new TLeaf(OperationEnum.Equal, "B", 1.11)
                ),
                new TLeaf(OperationEnum.Equal, "C", "IsEqualText")
            ),
            new TLeaf(OperationEnum.Equal, "D", filterDate)
        );
        var queryableData = new[]
        {
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-1),
                Values = new object[] { 1, 2.22, "IsNotEqualText", DateTimeOffset.Now.AddMinutes(-1) }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-2),
                Values = new object[] { 2, 1.11, "IsNotEqualText", DateTimeOffset.Now.AddMinutes(-1) }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-3),
                Values = new object[] { 2, 2.22, "IsEqualText", DateTimeOffset.Now.AddMinutes(-1) }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-4),
                Values = new object[] { 2, 2.22, "IsNotEqualText", filterDate }, // true
                DataScheme = dataScheme
            },
            new TimestampedValues {
                DiscriminatorId = discriminatorId,
                Timestamp = DateTimeOffset.Now.AddMinutes(-1),
                Values = new object[] { 2, 2.22, "IsNotEqualText", DateTimeOffset.Now.AddMinutes(-1) }, // false
                DataScheme = dataScheme
            }
        }
        .AsQueryable();

        //act
        var specification = dataScheme.BuildFilter<TimestampedValues>(root);

        //assert
        Assert.NotNull(specification);

        var query = SpecificationEvaluator.GetQuery(queryableData, specification);
        var result = query.ToList();

        Assert.NotNull(result);
        Assert.NotEmpty(result);

        var expectedCount = 4;
        var actualCount = result.Count();
        Assert.Equal(expectedCount, actualCount);
    }
}