Squashed commit of the following:

commit 0f48f3fb44
Author: quexeky <git@quexeky.dev>
Date:   Sun Oct 12 19:35:04 2025 +1100

    chore: Run cargo clippy && cargo fmt

    Signed-off-by: quexeky <git@quexeky.dev>

commit 974666efe2
Author: quexeky <git@quexeky.dev>
Date:   Sun Oct 12 19:17:40 2025 +1100

    refactor: Finish refactor

    Signed-off-by: quexeky <git@quexeky.dev>

commit 9e1bf9852f
Author: quexeky <git@quexeky.dev>
Date:   Sun Oct 12 18:33:43 2025 +1100

    refactor: Builds, but some logic still left to move back

    Signed-off-by: quexeky <git@quexeky.dev>

commit 5d22b883d5
Author: quexeky <git@quexeky.dev>
Date:   Sun Oct 12 17:04:27 2025 +1100

    refactor: Improvements to src-tauri

    Signed-off-by: quexeky <git@quexeky.dev>

commit 62a2561539
Author: quexeky <git@quexeky.dev>
Date:   Sat Oct 11 09:51:04 2025 +1100

    fix: Remote tauri dependency from process

    Signed-off-by: quexeky <git@quexeky.dev>

commit 59f040bc8b
Author: quexeky <git@quexeky.dev>
Date:   Thu Oct 9 07:46:17 2025 +1100

    chore: Major refactoring

    Still needs a massive go-over because there shouldn't be anything referencing tauri in any of the workspaces except the original one. Process manager has been refactored as an example

    Signed-off-by: quexeky <git@quexeky.dev>

Signed-off-by: quexeky <git@quexeky.dev>

remote/src/auth.rs

@@ -0,0 +1,152 @@
+use std::{collections::HashMap, env};
+
+use chrono::Utc;
+use client::{app_status::AppStatus, user::User};
+use database::{DatabaseAuth, interface::borrow_db_checked};
+use droplet_rs::ssl::sign_nonce;
+use gethostname::gethostname;
+use log::{error, warn};
+use serde::{Deserialize, Serialize};
+use url::Url;
+
+use crate::{
+    error::{DropServerError, RemoteAccessError},
+    requests::make_authenticated_get,
+    utils::DROP_CLIENT_SYNC,
+};
+
+use super::{
+    cache::{cache_object, get_cached_object},
+    requests::generate_url,
+};
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+struct CapabilityConfiguration {}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+struct InitiateRequestBody {
+    name: String,
+    platform: String,
+    capabilities: HashMap<String, CapabilityConfiguration>,
+    mode: String,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct HandshakeRequestBody {
+    client_id: String,
+    token: String,
+}
+
+impl HandshakeRequestBody {
+    pub fn new(client_id: String, token: String) -> Self {
+        Self { client_id, token }
+    }
+}
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct HandshakeResponse {
+    private: String,
+    certificate: String,
+    id: String,
+}
+
+impl From<HandshakeResponse> for DatabaseAuth {
+    fn from(value: HandshakeResponse) -> Self {
+        DatabaseAuth::new(value.private, value.certificate, value.id, None)
+    }
+}
+
+pub fn generate_authorization_header() -> String {
+    let certs = {
+        let db = borrow_db_checked();
+        db.auth.clone().expect("Authorisation not initialised")
+    };
+
+    let nonce = Utc::now().timestamp_millis().to_string();
+
+    let signature =
+        sign_nonce(certs.private, nonce.clone()).expect("Failed to generate authorisation header");
+
+    format!("Nonce {} {} {}", certs.client_id, nonce, signature)
+}
+
+pub async fn fetch_user() -> Result<User, RemoteAccessError> {
+    let response = make_authenticated_get(generate_url(&["/api/v1/client/user"], &[])?).await?;
+    if response.status() != 200 {
+        let err: DropServerError = response.json().await?;
+        warn!("{err:?}");
+
+        if err.status_message == "Nonce expired" {
+            return Err(RemoteAccessError::OutOfSync);
+        }
+
+        return Err(RemoteAccessError::InvalidResponse(err));
+    }
+
+    response
+        .json::<User>()
+        .await
+        .map_err(std::convert::Into::into)
+}
+
+pub fn auth_initiate_logic(mode: String) -> Result<String, RemoteAccessError> {
+    let base_url = {
+        let db_lock = borrow_db_checked();
+        Url::parse(&db_lock.base_url.clone())?
+    };
+
+    let hostname = gethostname();
+
+    let endpoint = base_url.join("/api/v1/client/auth/initiate")?;
+    let body = InitiateRequestBody {
+        name: format!("{} (Desktop)", hostname.display()),
+        platform: env::consts::OS.to_string(),
+        capabilities: HashMap::from([
+            ("peerAPI".to_owned(), CapabilityConfiguration {}),
+            ("cloudSaves".to_owned(), CapabilityConfiguration {}),
+        ]),
+        mode,
+    };
+
+    let client = DROP_CLIENT_SYNC.clone();
+    let response = client.post(endpoint.to_string()).json(&body).send()?;
+
+    if response.status() != 200 {
+        let data: DropServerError = response.json()?;
+        error!("could not start handshake: {}", data.status_message);
+
+        return Err(RemoteAccessError::HandshakeFailed(data.status_message));
+    }
+
+    let response = response.text()?;
+
+    Ok(response)
+}
+
+pub async fn setup() -> (AppStatus, Option<User>) {
+    let auth = {
+        let data = borrow_db_checked();
+        data.auth.clone()
+    };
+
+    if auth.is_some() {
+        let user_result = match fetch_user().await {
+            Ok(data) => data,
+            Err(RemoteAccessError::FetchError(_)) => {
+                let user = get_cached_object::<User>("user").ok();
+                return (AppStatus::Offline, user);
+            }
+            Err(_) => return (AppStatus::SignedInNeedsReauth, None),
+        };
+        if let Err(e) = cache_object("user", &user_result) {
+            warn!("Could not cache user object with error {e}");
+        }
+        return (AppStatus::SignedIn, Some(user_result));
+    }
+
+    (AppStatus::SignedOut, None)
+}