import type { ParamDefinition, ParamValues } from "@/params";

export function buildDefaultParamValues(
	params: ParamDefinition[],
): ParamValues {
	const values: ParamValues = {};
	for (const param of params) {
		values[param.key] = param.default;
	}
	return values;
}

export class DefinitionRegistry<TKey extends string, TDefinition> {
	private definitions = new Map<TKey, TDefinition>();
	private entityName: string;

	constructor(entityName: string) {
		this.entityName = entityName;
	}

	register(key: TKey, definition: TDefinition): void {
		this.definitions.set(key, definition);
	}

	has(key: TKey): boolean {
		return this.definitions.has(key);
	}

	get(key: TKey): TDefinition {
		const def = this.definitions.get(key);
		if (!def) {
			throw new Error(`Unknown ${this.entityName}: ${key}`);
		}
		return def;
	}

	getAll(): TDefinition[] {
		return Array.from(this.definitions.values());
	}
}
