import {Canonical, CanonicalDefinition} from './Canonical.ts'
import {InvalidCanonicalExportError} from './InstantiableCanonical.ts'
import {isStaticClass, StaticClass} from '../../../di/src/type/StaticClass.ts'

/**
 * Base canonical unit which loads static classes from their canonical files.
 * @extends Canonical
 */
export class StaticCanonical<T, T2> extends Canonical<StaticClass<T, T2>> {
    public async init_canonical_item(def: CanonicalDefinition): Promise<StaticClass<T, T2>> {
        if ( isStaticClass(def.imported.default) ) {
            return def.imported.default
        }

        throw new InvalidCanonicalExportError(def.original_name)
    }
}