Claude
9dcb0d6dc8
- Add `publish_key()` default method to `Query` trait (returns `None`) - Add `mutation_exec!` macro for SQLite INSERT/UPDATE/DELETE ops; overrides `publish_key()` so the mutation carries its own invalidation key - Add `Store::exec()` which runs a mutation and auto-publishes its key — action handlers no longer need a separate `store.publish()` call - Add `PgQuery` trait + `pg_query_one!` / `pg_query_all!` macros (feature-gated on `pg_replication`) mirroring the SQLite Query API - Add `cx.run_pg(pool, query)` to `RenderContext` which executes a PgQuery and auto-subscribes its cache key — no more manual `cx.subscribe()` calls - Update todo example: replace plain mutation fns with `mutation_exec!` structs and `store.exec()` calls; remove `action_then_publish` helper - Update pg_replication example: add `ListMessages` via `pg_query_all!` and replace manual subscribe + raw query with `cx.run_pg()` https://claude.ai/code/session_01HXe8rAZPweU9j2piBo9MdG
214 lines
7.6 KiB
Rust
214 lines
7.6 KiB
Rust
use livevue_rs::{
|
|
ComponentTree, RenderContext, SharedState, SignalStore,
|
|
ingest_signals, sse_handler,
|
|
};
|
|
|
|
use axum::extract::{Query as AxumQuery, State};
|
|
use axum::response::{Html, IntoResponse};
|
|
use axum::routing::{get, post};
|
|
use axum::{Json, Router};
|
|
use axum::http::StatusCode;
|
|
use uuid::Uuid;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Router
|
|
// ---------------------------------------------------------------------------
|
|
|
|
pub fn router(state: SharedState) -> Router {
|
|
Router::new()
|
|
.route("/", get(initial_page_load))
|
|
.route("/about", get(initial_about_load))
|
|
.route("/sse", get(sse_handler))
|
|
.route("/action/add_todo", post(action_add_todo))
|
|
.route("/action/toggle_todo", post(action_toggle_todo))
|
|
.route("/action/delete_todo", post(action_delete_todo))
|
|
.with_state(state)
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Document shell
|
|
// ---------------------------------------------------------------------------
|
|
|
|
fn document_shell(conn_id: Uuid) -> String {
|
|
format!(
|
|
r#"<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<title>LiveVue.rs — Todo</title>
|
|
<script type="module" src="https://cdn.jsdelivr.net/gh/starfederation/datastar@1.0.0-RC.8/bundles/datastar.js"></script>
|
|
<style>
|
|
{css}
|
|
</style>
|
|
</head>
|
|
<body
|
|
data-init="@get('/sse?conn={conn}')">
|
|
<div id="app">
|
|
<div/>
|
|
</body>
|
|
</html>"#,
|
|
css = INLINE_CSS,
|
|
conn = conn_id,
|
|
)
|
|
}
|
|
|
|
/// Used by the fanout task to wrap rendered inner HTML for morphing.
|
|
pub fn app_wrapper(conn_id: Uuid, signals: &str, inner_html: &str) -> String {
|
|
format!(
|
|
r#"<div id="app"
|
|
data-signals='{signals}'>
|
|
{inner}
|
|
<pre data-json-signals></pre>
|
|
</div>"#,
|
|
signals = signals,
|
|
inner = inner_html,
|
|
)
|
|
}
|
|
|
|
const INLINE_CSS: &str = r#"
|
|
body { font-family: system-ui, sans-serif; max-width: 600px; margin: 2rem auto; padding: 0 1rem; background: #fafafa; color: #333; }
|
|
h1 { color: #2563eb; }
|
|
nav { margin-bottom: 1.5rem; }
|
|
.nav-link { background: none; border: none; color: #2563eb; cursor: pointer; text-decoration: underline; font-size: inherit; padding: 0; }
|
|
.nav-current { font-weight: bold; }
|
|
.clock { font-variant-numeric: tabular-nums; color: #555; font-size: 0.95rem; margin-bottom: 1rem; }
|
|
.add-form { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
|
|
.add-form input { flex: 1; padding: 0.5rem; border: 1px solid #ccc; border-radius: 4px; }
|
|
.add-form button { padding: 0.5rem 1rem; background: #2563eb; color: white; border: none; border-radius: 4px; cursor: pointer; }
|
|
.add-form button:disabled { opacity: 0.5; cursor: not-allowed; }
|
|
.stats { color: #666; font-size: 0.9rem; }
|
|
.todo-list { list-style: none; padding: 0; }
|
|
.todo-item { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0; border-bottom: 1px solid #eee; }
|
|
.todo-title { flex: 1; }
|
|
.todo-title.completed { text-decoration: line-through; color: #999; }
|
|
.delete-btn { background: none; border: none; color: #ef4444; cursor: pointer; font-size: 1.2rem; padding: 0 0.25rem; }
|
|
.empty { color: #999; font-style: italic; }
|
|
.about-content p { line-height: 1.6; }
|
|
"#;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Page resolution + render pipeline
|
|
// ---------------------------------------------------------------------------
|
|
|
|
pub async fn resolve_and_render(cx: &mut RenderContext) -> anyhow::Result<String> {
|
|
let markup = match cx.tree.page.as_str() {
|
|
"TodoList" => crate::todo_list::todo_list(cx).await?,
|
|
"About" => crate::about::about(cx).await?,
|
|
other => crate::todo_list::todo_list(cx).await?
|
|
};
|
|
Ok(markup.into_string())
|
|
}
|
|
|
|
fn extract_conn_and_tree(signals: &SignalStore) -> (Uuid, ComponentTree) {
|
|
let conn_id = signals
|
|
.get("connId")
|
|
.and_then(|v| v.as_str())
|
|
.and_then(|s| s.parse().ok())
|
|
.unwrap_or_else(Uuid::new_v4);
|
|
|
|
let tree = signals
|
|
.get("tree")
|
|
.and_then(|v| serde_json::from_value(v.clone()).ok())
|
|
.unwrap_or_default();
|
|
|
|
(conn_id, tree)
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Initial page load handlers
|
|
// ---------------------------------------------------------------------------
|
|
|
|
async fn initial_page_load(State(state): State<SharedState>) -> impl IntoResponse {
|
|
let conn_id = Uuid::new_v4();
|
|
|
|
// Seed the initial signal state so the SSE handler can trigger the first
|
|
// render as soon as the pipe opens, without a client round-trip.
|
|
let tree = ComponentTree { page: "TodoList".into(), ..Default::default() };
|
|
let signals = SignalStore::from_pairs(vec![
|
|
("connId".into(), serde_json::json!(conn_id.to_string())),
|
|
("tree".into(), serde_json::to_value(&tree).unwrap()),
|
|
("newTodo".into(), serde_json::json!("")),
|
|
]);
|
|
state.connections.update_signals(&conn_id, signals.to_json_string());
|
|
|
|
Html(document_shell(conn_id))
|
|
}
|
|
|
|
async fn initial_about_load(State(state): State<SharedState>) -> impl IntoResponse {
|
|
let conn_id = Uuid::new_v4();
|
|
let tree = ComponentTree { page: "About".into(), ..Default::default() };
|
|
let signals = SignalStore::from_pairs(vec![
|
|
("connId".into(), serde_json::json!(conn_id.to_string())),
|
|
("tree".into(), serde_json::to_value(&tree).unwrap()),
|
|
]);
|
|
state.connections.update_signals(&conn_id, signals.to_json_string());
|
|
Html(document_shell(conn_id))
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Action handlers
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#[derive(serde::Deserialize)]
|
|
struct ActionIdParams {
|
|
id: i64,
|
|
}
|
|
|
|
async fn action_add_todo(
|
|
State(state): State<SharedState>,
|
|
Json(body): Json<serde_json::Value>,
|
|
) -> impl IntoResponse {
|
|
let conn_id = extract_conn_and_tree(&SignalStore::from_json(body.clone())).0;
|
|
ingest_signals(&state, conn_id, body.clone());
|
|
|
|
let title = body
|
|
.get("newTodo")
|
|
.and_then(|v| v.as_str())
|
|
.unwrap_or("")
|
|
.trim()
|
|
.to_string();
|
|
|
|
if title.is_empty() {
|
|
return StatusCode::ACCEPTED;
|
|
}
|
|
|
|
if let Err(e) = state.store.exec(crate::queries::CreateTodo { title }).await {
|
|
eprintln!("action_add_todo error: {e}");
|
|
return StatusCode::INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
StatusCode::ACCEPTED
|
|
}
|
|
|
|
async fn action_toggle_todo(
|
|
State(state): State<SharedState>,
|
|
AxumQuery(params): AxumQuery<ActionIdParams>,
|
|
Json(body): Json<serde_json::Value>,
|
|
) -> impl IntoResponse {
|
|
let conn_id = extract_conn_and_tree(&SignalStore::from_json(body.clone())).0;
|
|
ingest_signals(&state, conn_id, body);
|
|
|
|
if let Err(e) = state.store.exec(crate::queries::ToggleTodo { id: params.id }).await {
|
|
eprintln!("action_toggle_todo error: {e}");
|
|
return StatusCode::INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
StatusCode::ACCEPTED
|
|
}
|
|
|
|
async fn action_delete_todo(
|
|
State(state): State<SharedState>,
|
|
AxumQuery(params): AxumQuery<ActionIdParams>,
|
|
Json(body): Json<serde_json::Value>,
|
|
) -> impl IntoResponse {
|
|
let conn_id = extract_conn_and_tree(&SignalStore::from_json(body.clone())).0;
|
|
ingest_signals(&state, conn_id, body);
|
|
|
|
if let Err(e) = state.store.exec(crate::queries::DeleteTodo { id: params.id }).await {
|
|
eprintln!("action_delete_todo error: {e}");
|
|
return StatusCode::INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
StatusCode::ACCEPTED
|
|
} |