#![allow(dead_code)]
pub mod handlers;
use axum::{
body::Body,
extract::State,
http::{StatusCode, header},
response::{IntoResponse, Response},
routing::{get, post, put},
Json, Router,
};
use std::net::SocketAddr;
use std::sync::Arc;
use tokio::sync::RwLock;
use crate::db::schema::{init_db, CozoDb};
use crate::graph::GraphEngine;
use crate::embed;
#[derive(Clone)]
pub struct AppState {
pub db_path: Arc<RwLock<std::path::PathBuf>>,
pub current_project_path: Arc<RwLock<std::path::PathBuf>>,
db: Arc<RwLock<Option<CozoDb>>>,
pub indexing_state: Arc<RwLock<IndexingState>>,
}
#[derive(Clone, Default)]
pub struct IndexingState {
pub is_indexing: bool,
pub progress_percent: usize,
pub current_file: String,
pub total_files: usize,
pub indexed_files: usize,
pub error: Option<String>,
}
impl Default for AppState {
fn default() -> Self {
Self {
db_path: Arc::new(RwLock::new(std::path::PathBuf::new())),
current_project_path: Arc::new(RwLock::new(std::path::PathBuf::new())),
db: Arc::new(RwLock::new(None)),
indexing_state: Arc::new(RwLock::new(IndexingState::default())),
}
}
}
impl AppState {
pub async fn new(
db_path: std::path::PathBuf,
current_project_path: std::path::PathBuf,
) -> Result<Self, Box<dyn std::error::Error>> {
Ok(Self {
db_path: Arc::new(RwLock::new(db_path)),
current_project_path: Arc::new(RwLock::new(current_project_path)),
db: Arc::new(RwLock::new(None)),
indexing_state: Arc::new(RwLock::new(IndexingState::default())),
})
}
pub async fn reset_indexing_state(&self) {
let mut state = self.indexing_state.write().await;
state.is_indexing = false;
state.progress_percent = 0;
state.current_file = String::new();
state.total_files = 0;
state.indexed_files = 0;
state.error = None;
}
pub async fn set_indexing_started(&self, total_files: usize) {
let mut state = self.indexing_state.write().await;
state.is_indexing = true;
state.progress_percent = 0;
state.total_files = total_files;
state.indexed_files = 0;
state.error = None;
}
pub async fn update_indexing_progress(&self, indexed_files: usize, current_file: &str) {
let mut state = self.indexing_state.write().await;
state.indexed_files = indexed_files;
state.current_file = current_file.to_string();
if state.total_files > 0 {
state.progress_percent = (indexed_files * 100) / state.total_files;
}
}
pub async fn set_indexing_error(&self, error: String) {
let mut state = self.indexing_state.write().await;
state.is_indexing = false;
state.error = Some(error);
}
pub async fn set_indexing_complete(&self) {
let mut state = self.indexing_state.write().await;
state.is_indexing = false;
state.progress_percent = 100;
state.current_file = String::new();
}
pub async fn switch_project(
&self,
project_path: std::path::PathBuf,
) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
let db_path = project_path.join(".leankg");
{
let mut path_guard = self.db_path.write().await;
*path_guard = db_path.clone();
}
{
let mut proj_guard = self.current_project_path.write().await;
*proj_guard = project_path.clone();
}
let db = init_db(&db_path).map_err(|e| {
let msg = e.to_string();
Box::new(std::io::Error::new(std::io::ErrorKind::Other, msg)) as Box<dyn std::error::Error + Send + Sync>
})?;
{
let mut lock = self.db.write().await;
*lock = Some(db);
}
self.reset_indexing_state().await;
Ok(())
}
pub async fn init_db(&self) -> Result<(), Box<dyn std::error::Error>> {
let db_path = self.db_path.read().await.clone();
let db = init_db(&db_path)?;
let mut lock = self.db.write().await;
*lock = Some(db);
Ok(())
}
pub fn get_db(&self) -> Result<CozoDb, Box<dyn std::error::Error + Send + Sync>> {
crate::runtime::run_blocking(async {
let lock = self.db.read().await;
lock.clone()
.ok_or_else(|| "Database not initialized".into())
})
}
pub async fn get_graph_engine(
&self,
) -> Result<GraphEngine, Box<dyn std::error::Error + Send + Sync>> {
let lock = self.db.read().await;
let db = lock
.clone()
.ok_or_else(|| -> Box<dyn std::error::Error + Send + Sync> {
"Database not initialized".into()
})?;
Ok(GraphEngine::new(db))
}
}
#[derive(serde::Serialize)]
pub struct ApiResponse<T> {
pub success: bool,
pub data: Option<T>,
pub error: Option<String>,
}
impl<T: serde::Serialize> IntoResponse for ApiResponse<T> {
fn into_response(self) -> Response {
let status = if self.success {
StatusCode::OK
} else {
StatusCode::BAD_REQUEST
};
(status, Json(self)).into_response()
}
}
fn content_type_for_path(path: &str) -> &'static str {
if path.ends_with(".html") {
"text/html"
} else if path.ends_with(".js") {
"application/javascript"
} else if path.ends_with(".css") {
"text/css"
} else if path.ends_with(".json") {
"application/json"
} else if path.ends_with(".png") {
"image/png"
} else if path.ends_with(".jpg") || path.ends_with(".jpeg") {
"image/jpeg"
} else if path.ends_with(".svg") {
"image/svg+xml"
} else if path.ends_with(".ico") {
"image/x-icon"
} else {
"application/octet-stream"
}
}
async fn serve_embedded_file(path: &str) -> Response {
let path = path.trim_start_matches('/');
let file_path = if path.is_empty() || path == "/" {
"index.html"
} else {
path
};
if let Some(data) = embed::get(file_path) {
let ct = content_type_for_path(file_path);
Response::builder()
.status(StatusCode::OK)
.header(header::CONTENT_TYPE, ct)
.body(Body::from(data.to_vec()))
.unwrap_or_else(|_| internal_error())
} else {
Response::builder()
.status(StatusCode::NOT_FOUND)
.header(header::CONTENT_TYPE, "text/html")
.body(Body::from(embed::get_404().to_vec()))
.unwrap_or_else(|_| internal_error())
}
}
fn internal_error() -> Response {
Response::builder()
.status(StatusCode::INTERNAL_SERVER_ERROR)
.body(Body::from(b"Internal Server Error".to_vec()))
.unwrap()
}
async fn fallback_handler(path: axum::extract::Path<String>) -> Response {
serve_embedded_file(&path.0).await
}
async fn root_handler() -> Response {
serve_embedded_file("index.html").await
}
pub async fn start_server(
port: u16,
db_path: std::path::PathBuf,
_ui_dist_path: Option<std::path::PathBuf>,
) -> Result<(), Box<dyn std::error::Error>> {
let project_root = db_path.parent()
.map(|p| p.to_path_buf())
.unwrap_or_else(|| db_path.clone());
let state = AppState::new(db_path.clone(), project_root.clone()).await?;
state.init_db().await?;
let app = Router::new()
.route("/", get(root_handler))
.route("/*path", get(fallback_handler))
.route("/api/elements", get(handlers::api_elements))
.route("/api/relationships", get(handlers::api_relationships))
.route("/api/annotations", get(handlers::api_annotations))
.route("/api/annotations", post(handlers::api_create_annotation))
.route(
"/api/annotations/:element",
get(handlers::api_get_annotation),
)
.route(
"/api/annotations/:element",
put(handlers::api_update_annotation),
)
.route("/api/search", get(handlers::api_search))
.route("/api/graph/data", get(handlers::api_graph_data))
.route("/api/export/graph", get(handlers::api_export_graph))
.route("/api/query", post(handlers::api_query))
.route("/api/project/switch", post(handlers::api_switch_path))
.route("/api/index/status", get(handlers::api_index_status))
.route("/api/github/clone", post(handlers::api_github_clone))
.route("/api/file", get(handlers::api_get_file))
.with_state(state);
let addr = SocketAddr::from(([0, 0, 0, 0], port));
println!("LeanKG Web UI listening on http://localhost:{}", port);
println!("Press Ctrl+C to stop");
let listener = tokio::net::TcpListener::bind(addr).await?;
axum::serve(listener, app).await?;
Ok(())
}