package db

import (
	"git.sendico.io/tech/sxchnge/bff/pkg/auth"
	"git.sendico.io/tech/sxchnge/bff/pkg/db/account"
	mongoimpl "git.sendico.io/tech/sxchnge/bff/pkg/db/internal/mongo"
	"git.sendico.io/tech/sxchnge/bff/pkg/db/invitation"
	"git.sendico.io/tech/sxchnge/bff/pkg/db/policy"
	"git.sendico.io/tech/sxchnge/bff/pkg/db/role"
	"git.sendico.io/tech/sxchnge/bff/pkg/db/transaction"
	"git.sendico.io/tech/sxchnge/bff/pkg/merrors"
	"git.sendico.io/tech/sxchnge/bff/pkg/mlogger"
)

// Factory exposes high-level repositories used by application services.
type Factory interface {
	NewAccountDB() (account.DB, error)
	NewAccountDBWithCollection(collection string) (account.DB, error)
	NewInvitationsDB() (invitation.DB, error)

	NewRolesDB() (role.DB, error)
	NewPoliciesDB() (policy.DB, error)

	TransactionFactory() transaction.Factory

	Permissions() auth.Provider

	CloseConnection()
}

// NewConnection builds a Factory backed by the configured driver.
func NewConnection(logger mlogger.Logger, config *Config) (Factory, error) {
	if config == nil {
		return nil, merrors.InvalidArgument("database configuration is required", "config")
	}
	if config.Driver == Mongo {
		return mongoimpl.NewConnection(logger, config.Settings)
	}
	return nil, merrors.InvalidArgument("unknown database driver: "+string(config.Driver), "config.driver")
}

// NewCentralPermissionsConnection opens the explicitly configured central
// permissions database. It intentionally has no fallback to a service domain DB.
func NewCentralPermissionsConnection(logger mlogger.Logger, config *PermissionsDatabaseConfig) (Factory, error) {
	if config == nil {
		return nil, merrors.InvalidArgument("permissions_database configuration is required", "permissions_database")
	}
	conn, err := NewConnection(logger, config.AsDatabaseConfig())
	if err != nil {
		return nil, merrors.Wrap(err, "permissions_database")
	}
	return conn, nil
}