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import { Bot } from "../bot.ts";import { DiscordChannel } from "../types/discord.ts";import { Optionalize } from "../types/shared.ts";
const Mask = (1n << 64n) - 1n;
export function packOverwrites(allow: string, deny: string, id: string, type: number) {  return pack64(allow, 0) | pack64(deny, 1) | pack64(id, 2) | pack64(type, 3);}function unpack64(v: bigint, shift: number) {  return (v >> BigInt(shift * 64)) & Mask;}function pack64(v: string | number, shift: number) {  const b = BigInt(v);  if (b < 0 || b > Mask) throw new Error("should have been a 64 bit unsigned integer: " + v);  return b << BigInt(shift * 64);}export function separateOverwrites(v: bigint) {  return [Number(unpack64(v, 3)), unpack64(v, 2), unpack64(v, 0), unpack64(v, 1)] as [number, bigint, bigint, bigint];}
export function transformChannel(bot: Bot, payload: { channel: DiscordChannel } & { guildId?: bigint }) {  const channel = {    // UNTRANSFORMED STUFF HERE    type: payload.channel.type,    position: payload.channel.position,    name: payload.channel.name,    topic: payload.channel.topic ?? undefined,    nsfw: payload.channel.nsfw,    bitrate: payload.channel.bitrate,    userLimit: payload.channel.user_limit,    rateLimitPerUser: payload.channel.rate_limit_per_user,    // recipients: payload.channel.recipients?.map((r) => bot.transformers.user(bot, r)),    rtcRegion: payload.channel.rtc_region ?? undefined,    videoQualityMode: payload.channel.video_quality_mode,    guildId: payload.guildId || (payload.channel.guild_id ? bot.transformers.snowflake(payload.channel.guild_id) : 0n),    lastPinTimestamp: payload.channel.last_pin_timestamp ? Date.parse(payload.channel.last_pin_timestamp) : undefined,    permissionOverwrites: payload.channel.permission_overwrites      ? payload.channel.permission_overwrites.map((o) => packOverwrites(o.allow || "0", o.deny || "0", o.id, o.type))      : [],
    id: bot.transformers.snowflake(payload.channel.id),    permissions: payload.channel.permissions ? bot.transformers.snowflake(payload.channel.permissions) : undefined,    lastMessageId: payload.channel.last_message_id      ? bot.transformers.snowflake(payload.channel.last_message_id)      : undefined,    ownerId: payload.channel.owner_id ? bot.transformers.snowflake(payload.channel.owner_id) : undefined,    applicationId: payload.channel.application_id      ? bot.transformers.snowflake(payload.channel.application_id)      : undefined,    parentId: payload.channel.parent_id ? bot.transformers.snowflake(payload.channel.parent_id) : undefined,    memberCount: payload.channel.member_count,    messageCount: payload.channel.message_count,    archiveTimestamp: payload.channel.thread_metadata?.archive_timestamp      ? Date.parse(payload.channel.thread_metadata.archive_timestamp)      : undefined,    autoArchiveDuration: payload.channel.thread_metadata?.auto_archive_duration,    botIsMember: Boolean(payload.channel.member),    archived: payload.channel.thread_metadata?.archived,    locked: payload.channel.thread_metadata?.locked,    invitable: payload.channel.thread_metadata?.invitable,    createTimestamp: payload.channel.thread_metadata?.create_timestamp      ? Date.parse(payload.channel.thread_metadata.create_timestamp)      : undefined,    newlyCreated: payload.channel.newly_created,    flags: payload.channel.flags,  };
  return channel as Optionalize<typeof channel>;}
export interface Channel extends ReturnType<typeof transformChannel> {}