using FluentAssertions;
using Workflow.Application.Form.Derivation;
using Workflow.Application.Form.Relation.Handlers;
using Workflow.Application.Form.Relation.Queries;
using Workflow.Domain.Entities;
using Workflow.Domain.Enums;
using Xunit;

namespace BuildFlow.Workflow.Tests.Form;

public class FormRelationOptionsTests
{
    [Fact]
    public async Task GetFormRelationOptionsQuery_ShouldReturnOptionsFromPublishedCustomFormData()
    {
        await using var db = TestDbFactory.Create();
        var supplierFormId = Guid.NewGuid();
        db.FormDefinitions.Add(new FormDefinition
        {
            Id = supplierFormId,
            Name = "供应商",
            Code = "supplier",
            Status = FormStatus.Published,
            Version = 1,
            SchemaJson = "{}",
        });
        db.FormData.AddRange(
            new FormData
            {
                FormDefinitionId = supplierFormId,
                InstanceId = Guid.NewGuid(),
                DataJson = """{"id":"supplier-1","name":"上海供应商","code":"SH001"}""",
            },
            new FormData
            {
                FormDefinitionId = supplierFormId,
                InstanceId = Guid.NewGuid(),
                DataJson = """{"id":"supplier-2","name":"北京供应商","code":"BJ001"}""",
            });
        await db.SaveChangesAsync();

        var handler = new GetFormRelationOptionsQueryHandler(db);

        var result = await handler.Handle(
            new GetFormRelationOptionsQuery(
                "supplier",
                "id",
                "name",
                "上海",
                1,
                20,
                ["code"]),
            CancellationToken.None);

        result.Total.Should().Be(1);
        result.Items.Should().ContainSingle().Which.Should().BeEquivalentTo(new
        {
            Value = "supplier-1",
            Label = "上海供应商",
            Snapshot = new Dictionary<string, object?> { ["code"] = "SH001" },
        });
    }

    [Fact]
    public async Task FormValueDerivationService_ShouldResolveRelationSnapshotFromCustomFormData()
    {
        await using var db = TestDbFactory.Create();
        var supplierFormId = Guid.NewGuid();
        db.FormDefinitions.Add(new FormDefinition
        {
            Id = supplierFormId,
            Name = "供应商",
            Code = "supplier",
            Status = FormStatus.Published,
            Version = 1,
            SchemaJson = "{}",
        });
        db.FormData.Add(new FormData
        {
            FormDefinitionId = supplierFormId,
            InstanceId = Guid.NewGuid(),
            DataJson = """{"id":"supplier-1","name":"上海供应商","code":"SH001"}""",
        });
        await db.SaveChangesAsync();

        var service = new FormValueDerivationService([], [], db);

        var result = await service.DeriveAsync(
            """
            {
              "type": "object",
              "properties": {
                "supplier": {
                  "type": "object",
                  "title": "供应商",
                  "x-component": "RelationPicker",
                  "x-field-kind": "relation",
                  "x-relation": {
                    "sourceCode": "supplier",
                    "idField": "id",
                    "labelField": "name",
                    "snapshotFields": ["code", "name"],
                    "updatePolicy": "snapshotOnly"
                  }
                }
              }
            }
            """,
            """{"supplier":"supplier-1"}""",
            new FormDerivationContext(null, Guid.NewGuid(), null),
            CancellationToken.None);

        result.DataJson.Should().Contain("\"label\":\"上海供应商\"");
        result.DataJson.Should().Contain("\"code\":\"SH001\"");
    }
}