using System.Linq.Expressions;
using FluentAssertions;
using Moq;
using Oms.Application.Dtos.Orders;
using Oms.Application.Shared;
using Oms.Domain.ChannelsAggregate.Entities;
using Oms.Domain.ChannelsAggregate.Repositories;

namespace Oms.Tests;

public class RulesSnapshotHelperPublishTests
{
    [Fact]
    public async Task ApplyRulesToSnapshotAsync_ShouldPinBlacklistRemotePacksAndEmbedWeight()
    {
        var product = new SalesProduct
        {
            Id = 1,
            ProductCode = "test01",
            BlacklistAreaId = 10,
            RemoteAreaId = 20,
            WeightRuleId = 1,
            WeightRoundingId = 2
        };

        var areas = new Dictionary<int, KpiArea>
        {
            [10] = new() { Id = 10, Name = "黑名单区", AreaType = "blacklist" },
            [20] = new() { Id = 20, Name = "偏远区", AreaType = "remote" }
        };

        var kpiMock = new Mock<IKpiAreaRepository>();
        kpiMock.Setup(x => x.FirstOrDefaultAsync(It.IsAny<Expression<Func<KpiArea, bool>>>(), default))
            .ReturnsAsync((Expression<Func<KpiArea, bool>> expr, CancellationToken _) =>
                areas.Values.FirstOrDefault(expr.Compile()));
        kpiMock.Setup(x => x.GetAllInfosByAreaIdAsync(10, default))
            .ReturnsAsync(
            [
                new KpiAreaInfo { Id = 1, AreaId = 10, CountryCode = "US", LeftPostcode = "90000", RightPostcode = "90010" }
            ]);
        kpiMock.Setup(x => x.GetAllInfosByAreaIdAsync(20, default))
            .ReturnsAsync(
            [
                new KpiAreaInfo { Id = 2, AreaId = 20, CountryCode = "US", LeftPostcode = "06000", RightPostcode = "06999" }
            ]);
        kpiMock.Setup(x => x.FindPublishByAreaIdAndContentHashAsync(It.IsAny<int>(), It.IsAny<string>(), default))
            .ReturnsAsync((KpiAreaPublishRecord?)null);
        kpiMock.Setup(x => x.InsertPublishRecordAsync(It.IsAny<KpiAreaPublishRecord>(), default))
            .ReturnsAsync((KpiAreaPublishRecord r, CancellationToken _) =>
            {
                r.Id = r.AreaId * 100;
                return r;
            });

        var weightRuleMock = new Mock<IWeightRuleRepository>();
        weightRuleMock.Setup(x => x.FirstOrDefaultAsync(It.IsAny<Expression<Func<WeightRule, bool>>>(), default))
            .ReturnsAsync(new WeightRule { Id = 1, Name = "标准计重" });
        weightRuleMock.Setup(x => x.GetAllInfosByRuleIdAsync(1, default))
            .ReturnsAsync(
            [
                new WeightRuleInfo
                {
                    Id = 1,
                    RuleId = 1,
                    Condition = "gw>vw",
                    BillableWeight = "gw",
                    VolumetricFactor = "6000"
                }
            ]);

        var roundingMock = new Mock<IWeightRoundingRepository>();
        roundingMock.Setup(x => x.FirstOrDefaultAsync(It.IsAny<Expression<Func<WeightRounding, bool>>>(), default))
            .ReturnsAsync(new WeightRounding { Id = 2, Name = "标准进位" });
        roundingMock.Setup(x => x.GetAllInfosByRoundingIdAsync(2, default))
            .ReturnsAsync(
            [
                new WeightRoundingInfo { Id = 1, RoundingId = 2, StartValue = 0, EndValue = 20, Public = "0.5" }
            ]);

        var packService = new KpiAreaPackService(kpiMock.Object);
        var snapshot = new SalesProductRulesPublishSnapshotDto();
        await RulesSnapshotHelper.ApplyRulesToSnapshotAsync(
            snapshot,
            product,
            kpiMock.Object,
            weightRuleMock.Object,
            roundingMock.Object,
            packService,
            "tester");

        snapshot.BlacklistAreaId.Should().Be(10);
        snapshot.BlacklistAreaRef.Should().NotBeNull();
        snapshot.BlacklistAreaRef!.PackVersion.Should().NotBeNullOrWhiteSpace();
        snapshot.BlacklistAreaInfos.Should().BeEmpty();
        snapshot.RemoteAreaRef.Should().NotBeNull();
        snapshot.RemoteAreaRef!.AreaId.Should().Be(20);
        snapshot.WeightRuleInfos.Should().HaveCount(1);
        snapshot.WeightRoundingInfos.Should().HaveCount(1);

        var json = OmsDocHelper.SerializeSnapshotJson(snapshot)!;
        json.Should().Contain("blacklistAreaRef");
        json.Should().Contain("remoteAreaRef");
        json.Should().NotContain("blacklistAreaInfos");
        json.Should().NotContain("remoteAreaInfos");
    }
}