package rail

import (
	"context"
	"time"

	moneyv1 "github.com/tech/sendico/pkg/proto/common/money/v1"
	ledgerv1 "github.com/tech/sendico/pkg/proto/ledger/v1"
)

// InternalLedger exposes unified ledger operations for orchestration.
type InternalLedger interface {
	ReadBalance(ctx context.Context, accountID string) (*moneyv1.Money, error)
	CreateTransaction(ctx context.Context, tx LedgerTx) (string, error)
	HoldBalance(ctx context.Context, accountID string, amount string) error
}

// LedgerTx captures ledger posting context used by orchestration.
type LedgerTx struct {
	PaymentPlanID       string
	Currency            string
	Amount              string
	FeeAmount           string
	FromRail            string
	ToRail              string
	ExternalReferenceID string
	FXRateUsed          string
	IdempotencyKey      string
	CreatedAt           time.Time

	// Internal fields required to map into the ledger API.
	OrganizationRef        string
	LedgerAccountRef       string
	ContraLedgerAccountRef string
	Description            string
	Charges                []*ledgerv1.PostingLine
	Metadata               map[string]string
}