newsroom/node_modules/nostr-tools/lib/esm/nip28.js

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

// core.ts
var verifiedSymbol = Symbol("verified");
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 i2 = 0; i2 < event.tags.length; i2++) {
    let tag = event.tags[i2];
    if (!Array.isArray(tag))
      return false;
    for (let j = 0; j < tag.length; j++) {
      if (typeof tag[j] !== "string")
        return false;
    }
  }
  return true;
}

// pure.ts
import { sha256 } from "@noble/hashes/sha256";

// utils.ts
import { bytesToHex, hexToBytes } from "@noble/hashes/utils";
var utf8Decoder = new TextDecoder("utf-8");
var utf8Encoder = new TextEncoder();

// pure.ts
var JS = class {
  generateSecretKey() {
    return schnorr.utils.randomPrivateKey();
  }
  getPublicKey(secretKey) {
    return bytesToHex2(schnorr.getPublicKey(secretKey));
  }
  finalizeEvent(t, secretKey) {
    const event = t;
    event.pubkey = bytesToHex2(schnorr.getPublicKey(secretKey));
    event.id = getEventHash(event);
    event.sig = bytesToHex2(schnorr.sign(getEventHash(event), secretKey));
    event[verifiedSymbol] = true;
    return event;
  }
  verifyEvent(event) {
    if (typeof event[verifiedSymbol] === "boolean")
      return event[verifiedSymbol];
    const hash = getEventHash(event);
    if (hash !== event.id) {
      event[verifiedSymbol] = false;
      return false;
    }
    try {
      const valid = schnorr.verify(event.sig, hash, event.pubkey);
      event[verifiedSymbol] = valid;
      return valid;
    } catch (err) {
      event[verifiedSymbol] = false;
      return false;
    }
  }
};
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 i = new JS();
var generateSecretKey = i.generateSecretKey;
var getPublicKey = i.getPublicKey;
var finalizeEvent = i.finalizeEvent;
var verifyEvent = i.verifyEvent;

// kinds.ts
var ChannelCreation = 40;
var ChannelMetadata = 41;
var ChannelMessage = 42;
var ChannelHideMessage = 43;
var ChannelMuteUser = 44;

// 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 finalizeEvent(
    {
      kind: 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 finalizeEvent(
    {
      kind: 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 finalizeEvent(
    {
      kind: 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 finalizeEvent(
    {
      kind: 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 finalizeEvent(
    {
      kind: ChannelMuteUser,
      tags: [["p", t.pubkey_to_mute], ...t.tags ?? []],
      content,
      created_at: t.created_at
    },
    privateKey
  );
};
export {
  channelCreateEvent,
  channelHideMessageEvent,
  channelMessageEvent,
  channelMetadataEvent,
  channelMuteUserEvent
};