250 lines
8.6 KiB
Go
250 lines
8.6 KiB
Go
package ledger
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import (
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"context"
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"fmt"
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"strings"
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"time"
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"github.com/tech/sendico/ledger/storage"
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"github.com/tech/sendico/ledger/storage/model"
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"github.com/tech/sendico/pkg/api/routers/gsresponse"
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"github.com/tech/sendico/pkg/merrors"
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pmodel "github.com/tech/sendico/pkg/model"
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"github.com/tech/sendico/pkg/model/account_role"
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"github.com/tech/sendico/pkg/mutil/mzap"
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ledgerv1 "github.com/tech/sendico/pkg/proto/ledger/v1"
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"go.mongodb.org/mongo-driver/v2/bson"
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"go.uber.org/zap"
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)
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const ledgerOutboxSubject = "ledger.entry.posted"
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// postCreditResponder implements credit posting with charges
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func (s *Service) postCreditResponder(_ context.Context, req *ledgerv1.PostCreditRequest) gsresponse.Responder[ledgerv1.PostResponse] {
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return func(ctx context.Context) (*ledgerv1.PostResponse, error) {
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if req.IdempotencyKey == "" {
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return nil, merrors.InvalidArgument("idempotency_key is required")
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}
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if req.OrganizationRef == "" {
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return nil, merrors.InvalidArgument("organization_ref is required")
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}
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roleModel := account_role.AccountRole("")
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if req.Role != ledgerv1.AccountRole_ACCOUNT_ROLE_UNSPECIFIED {
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var err error
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roleModel, err = protoAccountRoleToModel(req.Role)
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if err != nil {
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return nil, err
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}
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} else if strings.TrimSpace(req.LedgerAccountRef) == "" {
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roleModel = account_role.AccountRoleOperating
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}
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if strings.TrimSpace(req.LedgerAccountRef) == "" && roleModel == "" {
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return nil, merrors.InvalidArgument("ledger_account_ref or role is required")
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}
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if err := validateMoney(req.Money, "money"); err != nil {
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return nil, err
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}
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orgRef, err := parseObjectID(req.OrganizationRef)
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if err != nil {
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return nil, err
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}
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logger := s.logger.With(
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zap.String("idempotency_key", req.IdempotencyKey),
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mzap.ObjRef("organization_ref", orgRef),
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zap.String("ledger_account_ref", strings.TrimSpace(req.LedgerAccountRef)),
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zap.String("currency", req.Money.Currency),
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)
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if roleModel != "" {
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logger = logger.With(zap.String("role", string(roleModel)))
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}
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if strings.TrimSpace(req.ContraLedgerAccountRef) != "" {
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logger = logger.With(zap.String("contra_ledger_account_ref", strings.TrimSpace(req.ContraLedgerAccountRef)))
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}
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existingEntry, err := s.storage.JournalEntries().GetByIdempotencyKey(ctx, orgRef, req.IdempotencyKey)
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if err == nil && existingEntry != nil {
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recordDuplicateRequest(journalEntryTypeCredit)
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logger.Info("Duplicate credit request (idempotency)",
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zap.String("existingEntryID", existingEntry.GetID().Hex()))
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return &ledgerv1.PostResponse{
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JournalEntryRef: existingEntry.GetID().Hex(),
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Version: existingEntry.Version,
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EntryType: ledgerv1.EntryType_ENTRY_CREDIT,
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}, nil
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}
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if err != nil && err != storage.ErrJournalEntryNotFound {
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recordJournalEntryError(journalEntryTypeCredit, journalEntryErrorIdempotencyCheck)
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logger.Warn("Failed to check idempotency", zap.Error(err))
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return nil, merrors.Internal("failed to check idempotency")
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}
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account, accountRef, err := s.resolveAccount(ctx, strings.TrimSpace(req.LedgerAccountRef), roleModel, orgRef, req.Money.Currency, "account")
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if err != nil {
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recordJournalEntryError(journalEntryTypeCredit, journalEntryErrorAccountResolve)
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return nil, err
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}
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if err := validateAccountForOrg(account, orgRef, req.Money.Currency); err != nil {
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recordJournalEntryError(journalEntryTypeCredit, journalEntryErrorAccountInvalid)
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return nil, err
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}
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accountsByRef := map[bson.ObjectID]*pmodel.LedgerAccount{accountRef: account}
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eventTime := getEventTime(req.EventTime)
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creditAmount, _ := parseDecimal(req.Money.Amount)
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entryTotal := creditAmount
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charges := req.Charges
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if len(charges) == 0 {
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if computed, err := s.quoteFeesForCredit(ctx, req); err != nil {
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logger.Warn("Failed to quote fees", zap.Error(err))
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} else if len(computed) > 0 {
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charges = computed
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}
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}
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if err := validatePostingLines(charges); err != nil {
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return nil, err
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}
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postingLines := make([]*model.PostingLine, 0, 2+len(charges))
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mainLine := &model.PostingLine{
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JournalEntryRef: bson.NilObjectID,
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AccountRef: accountRef,
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Amount: creditAmount.String(),
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Currency: req.Money.Currency,
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LineType: model.LineTypeMain,
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}
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mainLine.OrganizationRef = orgRef
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postingLines = append(postingLines, mainLine)
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for i, charge := range charges {
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chargeAccountRef, err := parseObjectID(charge.LedgerAccountRef)
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if err != nil {
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return nil, err
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}
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if charge.Money.Currency != req.Money.Currency {
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return nil, merrors.InvalidArgument(fmt.Sprintf("charges[%d]: currency mismatch", i))
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}
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chargeAccount, err := s.getAccount(ctx, accountsByRef, chargeAccountRef)
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if err != nil {
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if err == storage.ErrAccountNotFound {
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return nil, merrors.NoData(fmt.Sprintf("charges[%d]: account not found", i))
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}
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logger.Warn("Failed to get charge account", zap.Error(err), zap.String("chargeAccountRef", chargeAccountRef.Hex()))
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return nil, merrors.Internal("failed to get charge account")
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}
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if err := validateAccountForOrg(chargeAccount, orgRef, charge.Money.Currency); err != nil {
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return nil, merrors.InvalidArgument(fmt.Sprintf("charges[%d]: %s", i, err.Error()))
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}
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chargeAmount, err := parseDecimal(charge.Money.Amount)
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if err != nil {
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return nil, err
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}
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entryTotal = entryTotal.Add(chargeAmount)
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chargeLine := &model.PostingLine{
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JournalEntryRef: bson.NilObjectID,
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AccountRef: chargeAccountRef,
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Amount: chargeAmount.String(),
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Currency: charge.Money.Currency,
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LineType: protoLineTypeToModel(charge.LineType),
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}
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chargeLine.OrganizationRef = orgRef
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postingLines = append(postingLines, chargeLine)
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}
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contraAccount, err := s.resolveSettlementAccount(ctx, orgRef, req.Money.Currency, req.ContraLedgerAccountRef, accountsByRef)
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if err != nil {
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recordJournalEntryError(journalEntryTypeCredit, journalEntryErrorContraResolve)
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return nil, err
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}
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contraAccountID := contraAccount.GetID()
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if contraAccountID == nil {
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recordJournalEntryError(journalEntryTypeCredit, journalEntryErrorContraMissingID)
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return nil, merrors.Internal("contra account missing identifier")
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}
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contraAmount := entryTotal.Neg()
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if !contraAmount.IsZero() || len(postingLines) == 1 {
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contraLine := &model.PostingLine{
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JournalEntryRef: bson.NilObjectID,
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AccountRef: *contraAccountID,
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Amount: contraAmount.String(),
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Currency: req.Money.Currency,
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LineType: model.LineTypeMain,
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}
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contraLine.OrganizationRef = orgRef
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postingLines = append(postingLines, contraLine)
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entryTotal = entryTotal.Add(contraAmount)
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}
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if !entryTotal.IsZero() {
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recordJournalEntryError(journalEntryTypeCredit, journalEntryErrorUnbalancedAfterContra)
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return nil, merrors.Internal("failed to balance journal entry")
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}
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result, err := s.executeTransaction(ctx, func(txCtx context.Context) (any, error) {
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entry := &model.JournalEntry{
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IdempotencyKey: req.IdempotencyKey,
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EventTime: eventTime,
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EntryType: model.EntryTypeCredit,
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Description: req.Description,
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Metadata: req.Metadata,
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Version: time.Now().UnixNano(),
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}
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entry.OrganizationRef = orgRef
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if err := s.storage.JournalEntries().Create(txCtx, entry); err != nil {
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logger.Warn("Failed to create journal entry", zap.Error(err))
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return nil, merrors.Internal("failed to create journal entry")
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}
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entryRef := entry.GetID()
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if entryRef == nil {
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return nil, merrors.Internal("journal entry missing identifier")
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}
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for _, line := range postingLines {
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line.JournalEntryRef = *entryRef
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}
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if err := validateBalanced(postingLines); err != nil {
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return nil, err
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}
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if err := s.storage.PostingLines().CreateMany(txCtx, postingLines); err != nil {
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logger.Warn("Failed to create posting lines", zap.Error(err))
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return nil, merrors.Internal("failed to create posting lines")
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}
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if err := s.upsertBalances(txCtx, postingLines, accountsByRef); err != nil {
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return nil, err
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}
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if err := s.enqueueOutbox(txCtx, entry, postingLines); err != nil {
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return nil, err
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}
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return &ledgerv1.PostResponse{
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JournalEntryRef: entryRef.Hex(),
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Version: entry.Version,
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EntryType: ledgerv1.EntryType_ENTRY_CREDIT,
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}, nil
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})
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if err != nil {
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recordJournalEntryError(journalEntryTypeCredit, journalEntryErrorTransactionFailed)
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return nil, err
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}
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amountFloat, _ := creditAmount.Float64()
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recordTransactionAmount(req.Money.Currency, journalEntryTypeCredit, amountFloat)
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recordJournalEntry(journalEntryTypeCredit, journalEntryStatusSuccess, 0)
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return result.(*ledgerv1.PostResponse), nil
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}
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}
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