Errors.alusus

@merge module Rows {
    module Errors {
        def DB_NOT_INITIALIZED: "rows_db_not_initialized";
        def DB_NOT_INITIALIZED_MSG: "DB is not initialized.";
        func dbNotInitialized(): SrdRef[GenericError] {
            return GenericError.new(DB_NOT_INITIALIZED, DB_NOT_INITIALIZED_MSG);
        }

        def DB_NOT_CONNECTED: "rows_db_not_connected";
        def DB_NOT_CONNECTED_MSG: "DB is not connected.";
        func dbNotConnected(): SrdRef[GenericError] {
            return GenericError.new(DB_NOT_CONNECTED, DB_NOT_CONNECTED_MSG);
        }

        def SQL_ERROR: "rows_sql_error";
        func sqlError(errorMsg: CharsPtr): SrdRef[GenericError] {
            return GenericError.new(SQL_ERROR, errorMsg);
        }

        def CONNECTION_MISSING: "rows_connection_missing";
        def CONNECTION_MISSING_MSG: "No DB connection is set for this model.";
        func connectionMissing(): SrdRef[GenericError] {
            return GenericError.new(CONNECTION_MISSING, CONNECTION_MISSING_MSG);
        }

        def MIGRATION_MISSING: "rows_migration_missing";
        def MIGRATION_MISSING_MSG: "No migration was found for migrating table %s from version %i.";
        func migrationMissing(tableName: CharsPtr, version: Int): SrdRef[GenericError] {
            return GenericError.new(
                String(MIGRATION_MISSING),
                String.format(MIGRATION_MISSING_MSG, tableName, version)
            );
        }

        def MIGRATION_DEPENDENCY_MISSING: "rows_migration_dependency_missing";
        def MIGRATION_DEPENDENCY_MISSING_MSG:
            "Migration for table %s from version %i to version %i has unmet dependencies.";
        func migrationDependencyMissing(tableName: CharsPtr, fromVersion: Int, toVersion: Int): SrdRef[GenericError] {
            return GenericError.new(
                String(MIGRATION_MISSING),
                String.format(MIGRATION_DEPENDENCY_MISSING_MSG, tableName, fromVersion, toVersion)
            );
        }

        def MIGRATION_DEPENDENCY_CYCLE: "rows_migration_dependency_cycle";
        def MIGRATION_DEPENDENCY_CYCLE_MSG: "A cycle is detected in migration dependencies";
        func migrationDependencyCycle(): SrdRef[GenericError] {
            return GenericError.new(MIGRATION_DEPENDENCY_CYCLE, MIGRATION_DEPENDENCY_CYCLE_MSG);
        }
    }
}