import { cacheHandlers } from "../../cache.ts";
import { rest } from "../../rest/rest.ts";
import { structures } from "../../structures/mod.ts";
import type { Channel } from "../../types/channels/channel.ts";
import { DiscordChannelTypes } from "../../types/channels/channel_types.ts";
import type {
  CreateGuildChannel,
  DiscordCreateGuildChannel,
} from "../../types/guilds/create_guild_channel.ts";
import { endpoints } from "../../util/constants.ts";
import {
  calculateBits,
  requireOverwritePermissions,
} from "../../util/permissions.ts";
import { snakelize } from "../../util/utils.ts";

/** Create a channel in your server. Bot needs MANAGE_CHANNEL permissions in the server. */
export async function createChannel(
  guildId: bigint,
  options?: CreateGuildChannel,
  reason?: string
) {
  if (options?.permissionOverwrites) {
    await requireOverwritePermissions(guildId, options.permissionOverwrites);
  }

  // BITRATES ARE IN THOUSANDS SO IF USER PROVIDES 32 WE CONVERT TO 32000
  if (options?.bitrate && options.bitrate < 1000) options.bitrate *= 1000;

  const result = await rest.runMethod<Channel>(
    "post",
    endpoints.GUILD_CHANNELS(guildId),
    {
      ...snakelize<DiscordCreateGuildChannel>(options ?? {}),
      permission_overwrites: options?.permissionOverwrites?.map((perm) => ({
        ...perm,
        allow: calculateBits(perm.allow),
        deny: calculateBits(perm.deny),
      })),
      type: options?.type || DiscordChannelTypes.GuildText,
      reason,
    }
  );

  const discordenoChannel = await structures.createDiscordenoChannel(result);
  await cacheHandlers.set("channels", discordenoChannel.id, discordenoChannel);

  return discordenoChannel;
}