export const APPLY_PATCH_DISPLAY_PROTOCOL =
	"@howaboua/pi-codex-conversion/apply-patch-display/v1";
export const APPLY_PATCH_DISPLAY_REQUEST_CHANNEL = `${APPLY_PATCH_DISPLAY_PROTOCOL}/request`;
export const APPLY_PATCH_DISPLAY_AVAILABLE_CHANNEL = `${APPLY_PATCH_DISPLAY_PROTOCOL}/available`;

export interface ApplyPatchDisplayBroker {
	protocol: typeof APPLY_PATCH_DISPLAY_PROTOCOL;
	isActive(): boolean;
	register(customType: string): () => void;
}

export function isApplyPatchDisplayRequest(value: unknown): boolean {
	return Boolean(
		value &&
			typeof value === "object" &&
			"protocol" in value &&
			value.protocol === APPLY_PATCH_DISPLAY_PROTOCOL,
	);
}

export function isApplyPatchDisplayBroker(
	value: unknown,
): value is ApplyPatchDisplayBroker {
	return Boolean(
		value &&
			typeof value === "object" &&
			"protocol" in value &&
			value.protocol === APPLY_PATCH_DISPLAY_PROTOCOL &&
			"isActive" in value &&
			typeof value.isActive === "function" &&
			"register" in value &&
			typeof value.register === "function",
	);
}