strangler-fig-demo/new/src/New.Infrastructure.CaseFramework/CaseFrameworkGateway.cs

using New.Application.Ports;
using New.Infrastructure.CaseFramework.Dtos;

namespace New.Infrastructure.CaseFramework;

/// <summary>Seam D: implements <see cref="ICaseFrameworkGateway"/> against the case-framework's own contract.</summary>
public sealed class CaseFrameworkGateway : ICaseFrameworkGateway
{
    private readonly CaseFrameworkClient _client;

    // Internal constructor parameter type (CaseFrameworkClient is internal -
    // its API is shaped by case-framework DTOs). Registered via an explicit
    // factory in ServiceCollectionExtensions; see that file's remarks.
    internal CaseFrameworkGateway(CaseFrameworkClient client) => _client = client;

    public async Task<CaseCreated> CreateCaseAsync(string caseTypeCode, string externalReference, IReadOnlyList<string> participants, CancellationToken ct)
    {
        var response = await _client.CreateCaseAsync(
            new CreateCaseRequest(caseTypeCode, externalReference, participants.ToList()), ct);
        return new CaseCreated(response.Id, response.ProcessStatus);
    }

    public async Task<string?> GetProcessStatusAsync(Guid caseId, CancellationToken ct)
    {
        var response = await _client.GetCaseAsync(caseId, ct);
        return response?.ProcessStatus;
    }

    public async Task<TaskCreated> CreateTaskAsync(Guid caseId, string code, string description, CancellationToken ct)
    {
        var response = await _client.CreateTaskAsync(caseId, new CreateTaskRequest(code, description), ct);
        return new TaskCreated(response.TaskId, response.Open);
    }

    public Task CompleteTaskAsync(Guid caseId, Guid taskId, CancellationToken ct) =>
        _client.CompleteTaskAsync(caseId, taskId, ct);

    public Task<bool> RequestClosureAsync(Guid caseId, CancellationToken ct) =>
        _client.RequestClosureAsync(caseId, ct);
}