Pacioli.Accounting.Kernel 0.1.0

Pacioli.Accounting.Kernel (v1)

Este repositorio contiene un motor contable puro (sin EF/DB/UI) diseñado para usarse como NuGet en:

• Pacioli.Master (backend / persistencia / APIs)
• Pacioli.Core (UI / preview / validación previa, si aplica)
• Reporteador (render de reportes, exportaciones, etc.)

La idea central es:

Journal (asiento) → Posting → LedgerPostings → Projections (reportes)

Donde:

• Journal: cómo se captura el asiento (líneas, fecha, descripción, etc.)
• LedgerPostings: movimientos atómicos listos para reportes (debit/credit por cuenta, ya normalizados)
• Projections: cálculos para reportes (Trial Balance, Mayor, Movimientos), hechos solo desde LedgerPostings

Proyectos

• Pacioli.Accounting.Contracts
  • Tipos de entrada/salida del motor (Snapshots, Results, Projections)
• Pacioli.Accounting.Kernel
  • Implementación (normalize/validate/post/project)
• Pacioli.Accounting.Kernel.Tests
  • Unit tests (black-box)

Cómo se usa (flujo real)

1) En Master (leer journals → PostMany → guardar/reportar)

Objetivo típico en Master:

• Lees N journals desde DB
• Construyes N PostingRequestSnapshot
• Ejecutas kernel.PostMany(requests)
• Con los LedgerPostings resultantes:
  • (opción A) los guardas/materializas en una tabla de postings
  • (opción B) proyectas reportes “on the fly” sin persistir postings

Ejemplo (pseudo-código orientativo, sin EF):

using Pacioli.Accounting.Contracts.Enums;
using Pacioli.Accounting.Contracts.Snapshots;
using Pacioli.Accounting.Kernel;

// NOTE: This is an example only. Mapping from DB entities is app-specific.
public static class MasterPostingExample
{
    public static void Run()
    {
        var kernel = new AccountingKernel();

        // 1) Load journals from DB (your code)
        var journalsFromDb = LoadJournalsFromDb();

        // 2) Build requests
        var requests = journalsFromDb
            .Select(j => MapToPostingRequest(j))
            .ToList();

        // 3) Post many
        var batch = kernel.PostMany(requests);

        // 4) Policy decision in Master:
        //    - Reject all if any failed
        //    - Or continue with successful postings and log/report violations
        if (!batch.OkAll)
        {
            // Handle violations per journal
            // e.g., return a 409/422, log, or mark invalid journals
        }

        // 5) Use successful postings
        var postings = batch.LedgerPostings;

        // Option A: Persist postings for fast reporting (recommended if reports are heavy)
        SaveLedgerPostings(postings);

        // Option B: Project right away
        var trialBalances = kernel.ProjectTrialBalanceMany(postings);

        // Example: pick the TB for a specific period
        // var tb = trialBalances.Single(x => x.PeriodId == targetPeriodId);
    }

    private static IEnumerable<object> LoadJournalsFromDb()
    {
        // Return your journal entities
        return Array.Empty<object>();
    }

    private static PostingRequestSnapshot MapToPostingRequest(object journalEntity)
    {
        // TODO: Map your DB entity to JournalSnapshot + Context + Options.

        var context = new PostingContextSnapshot(
            periodFrom: new DateTime(2026, 01, 01),
            periodToExclusive: new DateTime(2026, 02, 01),
            currency: "USD",
            internalAmountPrecision: 2,
            internalAmountRoundingMode: AmountRoundingMode.HalfUp);

        var journal = new JournalSnapshot(
            journalId: Guid.NewGuid(),
            periodId: Guid.NewGuid(),
            postingDate: new DateTime(2026, 01, 15),
            documentNo: "J-0001",
            reference: "REF-1",
            description: "Example",
            lines: new[]
            {
                new JournalLineSnapshot(Guid.NewGuid(), Guid.NewGuid(), DcSide.Debit, 10.00m),
                new JournalLineSnapshot(Guid.NewGuid(), Guid.NewGuid(), DcSide.Credit, 10.00m),
            });

        var options = new PostingOptionsSnapshot(strict: true, autoBalanceRoundingDiff: true);

        return new PostingRequestSnapshot(journal, context, options);
    }

    private static void SaveLedgerPostings(IReadOnlyList<Pacioli.Accounting.Contracts.Results.LedgerPostingSnapshot> postings)
    {
        // Persist using your repository/EF/Dapper/etc. (outside of the Kernel)
    }
}