export const DISCORD_COMPONENT_CUSTOM_ID_KEY = "occomp";

export const DISCORD_MODAL_CUSTOM_ID_KEY = "ocmodal";

const ENCODED_CUSTOM_ID_VERSION = "1";

function encodeCustomIdValue(value: string): string {

return value.replace(/%/g, "%25").replace(/;/g, "%3B");

}

function needsCustomIdEncoding(value: string): boolean {

return /[%;]/.test(value);

}

function decodeCustomIdValue(value: string): string {

return value.replace(/%(25|3B)/gi, (match) => (match.toLowerCase() === "%25" ? "%" : ";"));

}

function decodeParsedCustomIdData(

data: ComponentParserResult["data"],

): ComponentParserResult["data"] {

if (data.e !== ENCODED_CUSTOM_ID_VERSION) {

return data;

}

return Object.fromEntries(

Object.entries(data).map(([key, value]) => [

key,

typeof value === "string" ? decodeCustomIdValue(value) : value,

]),

) as ComponentParserResult["data"];

}

export function buildDiscordComponentCustomId(params: {

componentId: string;

modalId?: string;

}): string {

const base = `${DISCORD_COMPONENT_CUSTOM_ID_KEY}:cid=${params.componentId}`;

return params.modalId ? `${base};mid=${params.modalId}` : base;

const encoded =

needsCustomIdEncoding(params.componentId) || needsCustomIdEncoding(params.modalId ?? "");

const componentId = encoded ? encodeCustomIdValue(params.componentId) : params.componentId;

const base = encoded

? `${DISCORD_COMPONENT_CUSTOM_ID_KEY}:e=${ENCODED_CUSTOM_ID_VERSION};cid=${componentId}`

: `${DISCORD_COMPONENT_CUSTOM_ID_KEY}:cid=${componentId}`;

const modalId = params.modalId;

if (!modalId) {

return base;

}

return `${base};mid=${encoded ? encodeCustomIdValue(modalId) : modalId}`;

}

export function buildDiscordModalCustomId(modalId: string): string {

return `${DISCORD_MODAL_CUSTOM_ID_KEY}:mid=${modalId}`;

return needsCustomIdEncoding(modalId)

? `${DISCORD_MODAL_CUSTOM_ID_KEY}:e=${ENCODED_CUSTOM_ID_VERSION};mid=${encodeCustomIdValue(modalId)}`

: `${DISCORD_MODAL_CUSTOM_ID_KEY}:mid=${modalId}`;

}

export function parseDiscordComponentCustomId(

if (parsed.key !== DISCORD_COMPONENT_CUSTOM_ID_KEY) {

return null;

}

const componentId = parsed.data.cid;

const data = decodeParsedCustomIdData(parsed.data);

const componentId = data.cid;

if (typeof componentId !== "string" || !componentId.trim()) {

return null;

}

const modalId = parsed.data.mid;

const modalId = data.mid;

return {

componentId,

modalId: typeof modalId === "string" && modalId.trim() ? modalId : undefined,

if (parsed.key !== DISCORD_MODAL_CUSTOM_ID_KEY) {

return null;

}

const modalId = parsed.data.mid;

const data = decodeParsedCustomIdData(parsed.data);

const modalId = data.mid;

if (typeof modalId !== "string" || !modalId.trim()) {

return null;

}

if (parsed.key !== DISCORD_COMPONENT_CUSTOM_ID_KEY) {

return parsed;

}

return { key: "*", data: parsed.data };

return { key: "*", data: decodeParsedCustomIdData(parsed.data) };

}

export function parseDiscordModalCustomIdForInteraction(id: string): ComponentParserResult {

if (parsed.key !== DISCORD_MODAL_CUSTOM_ID_KEY) {

return parsed;

}

return { key: "*", data: parsed.data };

return { key: "*", data: decodeParsedCustomIdData(parsed.data) };

}