package mongo

import (
	"git.sendico.io/tech/sxchnge/shared/database"
	"git.sendico.io/tech/sxchnge/shared/database/source"
	"git.sendico.io/tech/sxchnge/shared/database/transaction"
	"git.sendico.io/tech/sxchnge/shared/errors"
)

// Dependencies resolves local DB/transaction primitives for edge-local store wiring only.
type Dependencies struct {
	Database     source.Source
	Transactions transaction.Factory
}

type DatabaseProvider interface {
	MongoDatabase() source.Source
}

func ResolveDependencies(dbf db.Factory) (*Dependencies, error) {
	if dbf == nil {
		return nil, merrors.InvalidArgument("database factory is required", "dbFactory")
	}

	provider, ok := dbf.(DatabaseProvider)
	if !ok || provider.MongoDatabase() == nil {
		return nil, merrors.Internal("mongo database provider is not available for edge-local storage wiring")
	}

	return &Dependencies{
		Database:     provider.MongoDatabase(),
		Transactions: dbf.TransactionFactory(),
	}, nil
}