rss-nostr-lambda/node_modules/nostr-tools/lib/esm/nip28.js

// event.ts
import { schnorr as schnorr2 } from "@noble/curves/secp256k1";
import { sha256 } from "@noble/hashes/sha256";
import { bytesToHex as bytesToHex2 } from "@noble/hashes/utils";

// keys.ts
import { schnorr } from "@noble/curves/secp256k1";
import { bytesToHex } from "@noble/hashes/utils";
function getPublicKey(privateKey) {
  return bytesToHex(schnorr.getPublicKey(privateKey));
}

// utils.ts
var utf8Decoder = new TextDecoder("utf-8");
var utf8Encoder = new TextEncoder();

// event.ts
var verifiedSymbol = Symbol("verified");
function finishEvent(t, privateKey) {
  const event = t;
  event.pubkey = getPublicKey(privateKey);
  event.id = getEventHash(event);
  event.sig = getSignature(event, privateKey);
  event[verifiedSymbol] = true;
  return event;
}
function serializeEvent(evt) {
  if (!validateEvent(evt))
    throw new Error("can't serialize event with wrong or missing properties");
  return JSON.stringify([0, evt.pubkey, evt.created_at, evt.kind, evt.tags, evt.content]);
}
function getEventHash(event) {
  let eventHash = sha256(utf8Encoder.encode(serializeEvent(event)));
  return bytesToHex2(eventHash);
}
var isRecord = (obj) => obj instanceof Object;
function validateEvent(event) {
  if (!isRecord(event))
    return false;
  if (typeof event.kind !== "number")
    return false;
  if (typeof event.content !== "string")
    return false;
  if (typeof event.created_at !== "number")
    return false;
  if (typeof event.pubkey !== "string")
    return false;
  if (!event.pubkey.match(/^[a-f0-9]{64}$/))
    return false;
  if (!Array.isArray(event.tags))
    return false;
  for (let i = 0; i < event.tags.length; i++) {
    let tag = event.tags[i];
    if (!Array.isArray(tag))
      return false;
    for (let j = 0; j < tag.length; j++) {
      if (typeof tag[j] === "object")
        return false;
    }
  }
  return true;
}
function getSignature(event, key) {
  return bytesToHex2(schnorr2.sign(getEventHash(event), key));
}

// nip28.ts
var channelCreateEvent = (t, privateKey) => {
  let content;
  if (typeof t.content === "object") {
    content = JSON.stringify(t.content);
  } else if (typeof t.content === "string") {
    content = t.content;
  } else {
    return void 0;
  }
  return finishEvent(
    {
      kind: 40 /* ChannelCreation */,
      tags: [...t.tags ?? []],
      content,
      created_at: t.created_at
    },
    privateKey
  );
};
var channelMetadataEvent = (t, privateKey) => {
  let content;
  if (typeof t.content === "object") {
    content = JSON.stringify(t.content);
  } else if (typeof t.content === "string") {
    content = t.content;
  } else {
    return void 0;
  }
  return finishEvent(
    {
      kind: 41 /* ChannelMetadata */,
      tags: [["e", t.channel_create_event_id], ...t.tags ?? []],
      content,
      created_at: t.created_at
    },
    privateKey
  );
};
var channelMessageEvent = (t, privateKey) => {
  const tags = [["e", t.channel_create_event_id, t.relay_url, "root"]];
  if (t.reply_to_channel_message_event_id) {
    tags.push(["e", t.reply_to_channel_message_event_id, t.relay_url, "reply"]);
  }
  return finishEvent(
    {
      kind: 42 /* ChannelMessage */,
      tags: [...tags, ...t.tags ?? []],
      content: t.content,
      created_at: t.created_at
    },
    privateKey
  );
};
var channelHideMessageEvent = (t, privateKey) => {
  let content;
  if (typeof t.content === "object") {
    content = JSON.stringify(t.content);
  } else if (typeof t.content === "string") {
    content = t.content;
  } else {
    return void 0;
  }
  return finishEvent(
    {
      kind: 43 /* ChannelHideMessage */,
      tags: [["e", t.channel_message_event_id], ...t.tags ?? []],
      content,
      created_at: t.created_at
    },
    privateKey
  );
};
var channelMuteUserEvent = (t, privateKey) => {
  let content;
  if (typeof t.content === "object") {
    content = JSON.stringify(t.content);
  } else if (typeof t.content === "string") {
    content = t.content;
  } else {
    return void 0;
  }
  return finishEvent(
    {
      kind: 44 /* ChannelMuteUser */,
      tags: [["p", t.pubkey_to_mute], ...t.tags ?? []],
      content,
      created_at: t.created_at
    },
    privateKey
  );
};
export {
  channelCreateEvent,
  channelHideMessageEvent,
  channelMessageEvent,
  channelMetadataEvent,
  channelMuteUserEvent
};