refactor chats (#15)

* refactor

* update

* update

* update

* remove nostrprofile struct

* update

* refactor contacts

* prevent double login

crates/common/src/lib.rs

@@ -1,3 +1,78 @@
-pub mod last_seen;
+use std::{
+    collections::HashSet,
+    hash::{DefaultHasher, Hash, Hasher},
+    sync::Arc,
+};
+
+use anyhow::Context;
+use global::constants::NIP96_SERVER;
+use gpui::Image;
+use itertools::Itertools;
+use nostr_sdk::prelude::*;
+use qrcode_generator::QrCodeEcc;
+use rnglib::{Language, RNG};
+
 pub mod profile;
-pub mod utils;
+
+pub async fn nip96_upload(client: &Client, file: Vec<u8>) -> anyhow::Result<Url, anyhow::Error> {
+    let signer = client.signer().await?;
+    let server_url = Url::parse(NIP96_SERVER)?;
+
+    let config: ServerConfig = nip96::get_server_config(server_url, None).await?;
+    let url = nip96::upload_data(&signer, &config, file, None, None).await?;
+
+    Ok(url)
+}
+
+pub fn room_hash(event: &Event) -> u64 {
+    let mut hasher = DefaultHasher::new();
+    let mut pubkeys: Vec<&PublicKey> = vec![];
+
+    // Add all public keys from event
+    pubkeys.push(&event.pubkey);
+    pubkeys.extend(event.tags.public_keys().collect::<Vec<_>>());
+
+    // Generate unique hash
+    pubkeys
+        .into_iter()
+        .unique()
+        .sorted()
+        .collect::<Vec<_>>()
+        .hash(&mut hasher);
+
+    hasher.finish()
+}
+
+pub fn device_pubkey(event: &Event) -> Result<PublicKey, anyhow::Error> {
+    let n_tag = event.tags.find(TagKind::custom("n")).context("Invalid")?;
+    let hex = n_tag.content().context("Invalid")?;
+    let pubkey = PublicKey::parse(hex)?;
+
+    Ok(pubkey)
+}
+
+pub fn random_name(length: usize) -> String {
+    let rng = RNG::from(&Language::Roman);
+    rng.generate_names(length, true).join("-").to_lowercase()
+}
+
+pub fn create_qr(data: &str) -> Result<Arc<Image>, anyhow::Error> {
+    let qr = qrcode_generator::to_png_to_vec_from_str(data, QrCodeEcc::Medium, 256)?;
+    let img = Arc::new(Image {
+        format: gpui::ImageFormat::Png,
+        bytes: qr.clone(),
+        id: 1,
+    });
+
+    Ok(img)
+}
+
+pub fn compare<T>(a: &[T], b: &[T]) -> bool
+where
+    T: Eq + Hash,
+{
+    let a: HashSet<_> = a.iter().collect();
+    let b: HashSet<_> = b.iter().collect();
+
+    a == b
+}