package storage

import (
	"context"

	"github.com/tech/sendico/gateway/chain/storage/model"
)

type storageError string

func (e storageError) Error() string {
	return string(e)
}

var (
	// ErrWalletNotFound indicates that a wallet record was not found.
	ErrWalletNotFound = storageError("chain.gateway.storage: wallet not found")
	// ErrTransferNotFound indicates that a transfer record was not found.
	ErrTransferNotFound = storageError("chain.gateway.storage: transfer not found")
	// ErrDepositNotFound indicates that a deposit record was not found.
	ErrDepositNotFound = storageError("chain.gateway.storage: deposit not found")
)

// Repository represents the root storage contract for the chain gateway module.
type Repository interface {
	Ping(ctx context.Context) error
	Wallets() WalletsStore
	Transfers() TransfersStore
	Deposits() DepositsStore
}

// WalletsStore exposes persistence operations for managed wallets.
type WalletsStore interface {
	Create(ctx context.Context, wallet *model.ManagedWallet) (*model.ManagedWallet, error)
	Get(ctx context.Context, walletRef string) (*model.ManagedWallet, error)
	List(ctx context.Context, filter model.ManagedWalletFilter) (*model.ManagedWalletList, error)
	SaveBalance(ctx context.Context, balance *model.WalletBalance) error
	GetBalance(ctx context.Context, walletRef string) (*model.WalletBalance, error)
}

// TransfersStore exposes persistence operations for transfers.
type TransfersStore interface {
	Create(ctx context.Context, transfer *model.Transfer) (*model.Transfer, error)
	Get(ctx context.Context, transferRef string) (*model.Transfer, error)
	List(ctx context.Context, filter model.TransferFilter) (*model.TransferList, error)
	UpdateStatus(ctx context.Context, transferRef string, status model.TransferStatus, failureReason string, txHash string) (*model.Transfer, error)
}

// DepositsStore exposes persistence operations for observed deposits.
type DepositsStore interface {
	Record(ctx context.Context, deposit *model.Deposit) error
	ListPending(ctx context.Context, network string, limit int32) ([]*model.Deposit, error)
}