using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using AsbCloudApp.Data;
using AsbCloudApp.Data.SAUB;
using AsbCloudApp.Repositories;
using AsbCloudApp.Requests;
using AsbCloudApp.Services;
using AsbCloudInfrastructure.Services;
using NSubstitute;
using Xunit;

namespace AsbCloudInfrastructure.Tests.Services;

public class WellboreServiceTest
{
    private static readonly WellDto well1 = new()
    {
        Id = 1,
        IdState = 1,
        IdTelemetry = 1,
        LastTelemetryDate = DateTimeOffset.Now,
        Caption = "well 1"
    };

    private static readonly WellDto well2 = new()
    {
        Id = 2,
        IdState = 1,
        IdTelemetry = 100,
        LastTelemetryDate = DateTimeOffset.Now,
        Caption = "well 2"
    };

    private readonly IWellService wellServiceMock = Substitute.For<IWellService>();
    private readonly IWellOperationRepository wellOperationRepositoryMock = Substitute.For<IWellOperationRepository>();
    private readonly ITelemetryDataCache<TelemetryDataSaubDto> telemetryDataCacheMock = Substitute.For<ITelemetryDataCache<TelemetryDataSaubDto>>();

    private readonly WellboreService wellboreService;

    public WellboreServiceTest()
    {
        wellboreService = new WellboreService(wellServiceMock, wellOperationRepositoryMock, telemetryDataCacheMock);
    }

    [Fact]
    public async Task GetWellboresAsync_ShouldReturn_EmptyCollection()
    {
        var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);

        Assert.NotNull(result);
        Assert.False(result.Any());
    }

    [Fact]
    public async Task GetWellboresAsync_ShouldReturn_OneWellboreByWellOnly()
    {
        wellServiceMock.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
            .Returns(new[] { well1 });

        var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);

        Assert.Single(result);
        var wellbore0 = result.ElementAt(0);
        Assert.Equal(well1.Caption, wellbore0.Well.Caption);
        Assert.Equal(well1.Id, wellbore0.Well.Id);

        Assert.Equal("Ствол 1", wellbore0.Name);
        Assert.Equal(1, wellbore0.Id);

        Assert.Equal(default, wellbore0.DateStart);
        Assert.Equal(default, wellbore0.DateEnd);
        Assert.Equal(default, wellbore0.DepthStart);
        Assert.Equal(default, wellbore0.DepthEnd);
    }

    [Fact]
    public async Task GetWellboresAsync_ShouldReturn_TwoWellboreByTwoWellsOnly()
    {
        wellServiceMock.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
            .Returns(new[] { well1, well2 });

        var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);

        Assert.Equal(2, result.Count());
    }

    [Fact]
    public async Task GetWellboresAsync_ShouldReturn_TwoWellboreByWellWithSections()
    {
        wellServiceMock.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
            .Returns(new[] { well1 });

        var section0 = new SectionByOperationsDto
        {
            IdWell = well1.Id,
            IdWellSectionType = 0,
            IdType = 1,
            DateStart = new DateTime(2023, 01, 01),
            DateEnd = new DateTime(2023, 01, 02),
            DepthStart = 000,
            DepthEnd = 100
        };
        var section1 = new SectionByOperationsDto
        {
            IdWell = well1.Id,
            IdWellSectionType = 0,
            IdType = 1,
            DateStart = new DateTime(2023, 01, 02),
            DateEnd = new DateTime(2023, 01, 03),
            DepthStart = 100,
            DepthEnd = 300
        };
        var section2 = new SectionByOperationsDto
        {
            IdWell = well1.Id,
            IdWellSectionType = 0,
            IdType = 1,
            DateStart = new DateTime(2023, 01, 03),
            DateEnd = new DateTime(2023, 01, 04),
            DepthStart = 200,
            DepthEnd = 210
        };
        var section3 = new SectionByOperationsDto
        {
            IdWell = int.MaxValue,
            IdWellSectionType = 0,
            IdType = 1,
            DateStart = new DateTime(2023, 01, 03),
            DateEnd = new DateTime(2023, 01, 04),
            DepthStart = 200,
            DepthEnd = 220
        };
        var section4 = new SectionByOperationsDto
        {
            IdWell = well1.Id,
            IdWellSectionType = 0,
            IdType = 0,
            DateStart = new DateTime(2023, 01, 05),
            DateEnd = new DateTime(2023, 01, 06),
            DepthStart = 150,
            DepthEnd = 220
        };

        wellOperationRepositoryMock.GetSectionsAsync(Arg.Any<IEnumerable<int>>(), Arg.Any<CancellationToken>())
            .Returns(new[] { section0, section1, section2, section3, section4, });

        var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);

        Assert.Equal(2, result.Count());
        var wellbore0 = result.ElementAt(0);
        Assert.Equal(well1.Caption, wellbore0.Well.Caption);
        Assert.Equal(well1.Id, wellbore0.Well.Id);

        Assert.Equal("Ствол 1", wellbore0.Name);
        Assert.Equal(1, wellbore0.Id);

        Assert.Equal(section0.DateStart, wellbore0.DateStart);
        Assert.Equal(section0.DepthStart, wellbore0.DepthStart);
        Assert.Equal(section1.DateEnd, wellbore0.DateEnd);
        Assert.Equal(section1.DepthEnd, wellbore0.DepthEnd);

        var wellbore1 = result.ElementAt(1);
        Assert.Equal(well1.Caption, wellbore1.Well.Caption);
        Assert.Equal(well1.Id, wellbore1.Well.Id);

        Assert.Equal("Ствол 2", wellbore1.Name);
        Assert.Equal(2, wellbore1.Id);

        Assert.Equal(section2.DateStart, wellbore1.DateStart);
        Assert.Equal(section2.DepthStart, wellbore1.DepthStart);
        Assert.Equal(section2.DateEnd, wellbore1.DateEnd);
        Assert.Equal(section2.DepthEnd, wellbore1.DepthEnd);
    }


    [Fact]
    public async Task GetWellboresAsync_ShouldReturn_OneWellboreByWellWithTelemetry()
    {
        wellServiceMock.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
            .Returns(new[] { well1 });

        var firstCacheItem = new TelemetryDataSaubDto { DateTime = new DateTime(2000, 01, 01), WellDepth = 0, };
        var lastCacheItem = new TelemetryDataSaubDto { DateTime = new DateTime(2023, 01, 05), WellDepth = 321, };

        telemetryDataCacheMock.GetOrDefaultFirstLast(Arg.Any<int>())
            .Returns((firstCacheItem, lastCacheItem));

        var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);

        Assert.Single(result);
        var wellbore0 = result.ElementAt(0);
        Assert.Equal(well1.Caption, wellbore0.Well.Caption);
        Assert.Equal(well1.Id, wellbore0.Well.Id);

        Assert.Equal("Ствол 1", wellbore0.Name);
        Assert.Equal(1, wellbore0.Id);

        Assert.Equal(firstCacheItem.DateTime, wellbore0.DateStart);
        Assert.Equal(firstCacheItem.WellDepth, wellbore0.DepthStart);
        Assert.Equal(lastCacheItem.DateTime, wellbore0.DateEnd);
        Assert.Equal(lastCacheItem.WellDepth, wellbore0.DepthEnd);
    }

    [Fact]
    public async Task GetWellboresAsync_ShouldReturn_TwoWellboreByWellWithAll()
    {
        wellServiceMock.GetAsync(Arg.Any<WellRequest>(), Arg.Any<CancellationToken>())
            .Returns(new[] { well1 });

        var section0 = new SectionByOperationsDto
        {
            IdWell = well1.Id,
            IdWellSectionType = 0,
            IdType = 1,
            DateStart = new DateTime(2023, 01, 01),
            DateEnd = new DateTime(2023, 01, 02),
            DepthStart = 000,
            DepthEnd = 100
        };
        var section1 = new SectionByOperationsDto
        {
            IdWell = well1.Id,
            IdWellSectionType = 0,
            IdType = 1,
            DateStart = new DateTime(2023, 01, 02),
            DateEnd = new DateTime(2023, 01, 03),
            DepthStart = 100,
            DepthEnd = 300
        };
        var section2 = new SectionByOperationsDto
        {
            IdWell = well1.Id,
            IdWellSectionType = 0,
            IdType = 1,
            DateStart = new DateTime(2023, 01, 03),
            DateEnd = new DateTime(2023, 01, 04),
            DepthStart = 200,
            DepthEnd = 210
        };

        wellOperationRepositoryMock.GetSectionsAsync(Arg.Any<IEnumerable<int>>(), Arg.Any<CancellationToken>())
            .Returns(new[] { section0, section1, section2 });

        var firstCacheItem = new TelemetryDataSaubDto { DateTime = new DateTime(2000, 01, 01), WellDepth = 0, };
        var lastCacheItem = new TelemetryDataSaubDto { DateTime = new DateTime(2023, 01, 05), WellDepth = 321, };

        telemetryDataCacheMock.GetOrDefaultFirstLast(Arg.Any<int>())
            .Returns((firstCacheItem, lastCacheItem));

        var result = await wellboreService.GetWellboresAsync(new[] { 1 }, CancellationToken.None);

        Assert.Equal(2, result.Count());
        var wellbore0 = result.ElementAt(0);
        Assert.Equal(well1.Caption, wellbore0.Well.Caption);
        Assert.Equal(well1.Id, wellbore0.Well.Id);

        Assert.Equal("Ствол 1", wellbore0.Name);
        Assert.Equal(1, wellbore0.Id);

        Assert.Equal(section0.DateStart, wellbore0.DateStart);
        Assert.Equal(section0.DepthStart, wellbore0.DepthStart);
        Assert.Equal(section1.DateEnd, wellbore0.DateEnd);
        Assert.Equal(section1.DepthEnd, wellbore0.DepthEnd);

        var wellbore1 = result.ElementAt(1);
        Assert.Equal(well1.Caption, wellbore1.Well.Caption);
        Assert.Equal(well1.Id, wellbore1.Well.Id);

        Assert.Equal("Ствол 2", wellbore1.Name);
        Assert.Equal(2, wellbore1.Id);

        Assert.Equal(section2.DateStart, wellbore1.DateStart);
        Assert.Equal(section2.DepthStart, wellbore1.DepthStart);
        Assert.Equal(lastCacheItem.DateTime, wellbore1.DateEnd);
        Assert.Equal(lastCacheItem.WellDepth, wellbore1.DepthEnd);
    }
}