rhailib/src/rhai_engine_ui/src/app.rs
2025-06-19 02:32:56 +03:00

389 lines
16 KiB
Rust

use gloo_net::http::Request;
use gloo_timers::callback::Interval;
use serde::{Deserialize, Serialize};
use wasm_bindgen_futures::spawn_local;
use web_sys::HtmlInputElement;
use yew::prelude::*;
use yew::{html, Component, Context, Html, TargetCast};
// --- Data Structures (placeholders, to be refined based on backend API) ---
#[derive(Clone, PartialEq, Serialize, Deserialize, Debug)]
pub struct QueueStats {
pub current_size: u32,
pub color_code: String, // e.g., "green", "yellow", "red"
}
#[derive(Clone, PartialEq, Serialize, Deserialize, Debug)]
pub struct TaskSummary {
pub hash: String,
pub created_at: i64,
pub status: String,
}
#[derive(Clone, Debug, Serialize, Deserialize, PartialEq)]
pub struct TaskDetails {
pub hash: String,
pub created_at: i64,
pub status: String,
pub script_content: String,
pub result: Option<String>,
pub error: Option<String>,
}
// Combined structure for initial fetch
#[derive(Clone, PartialEq, Serialize, Deserialize, Debug)]
pub struct WorkerDataResponse {
pub queue_stats: Option<QueueStats>,
pub tasks: Vec<TaskSummary>,
}
// --- Component ---
pub enum Msg {
UpdateWorkerName(String),
FetchData,
SetWorkerData(Result<WorkerDataResponse, String>),
SetQueueStats(Result<QueueStats, String>),
ViewTaskDetails(String), // Task hash
SetTaskDetails(Result<TaskDetails, String>),
ClearTaskDetails,
IntervalTick, // For interval timer, to trigger queue stats fetch
}
pub struct App {
worker_name_input: String,
worker_name_to_monitor: Option<String>,
tasks_list: Vec<TaskSummary>,
current_queue_stats: Option<QueueStats>,
selected_task_details: Option<TaskDetails>,
error_message: Option<String>,
is_loading_initial_data: bool,
is_loading_task_details: bool,
queue_poll_timer: Option<Interval>,
}
impl Component for App {
type Message = Msg;
type Properties = ();
fn create(_ctx: &Context<Self>) -> Self {
Self {
worker_name_input: "".to_string(),
worker_name_to_monitor: None,
tasks_list: Vec::new(),
current_queue_stats: None,
selected_task_details: None,
error_message: None,
is_loading_initial_data: false,
is_loading_task_details: false,
queue_poll_timer: None,
}
}
fn update(&mut self, ctx: &Context<Self>, msg: Self::Message) -> bool {
match msg {
Msg::UpdateWorkerName(name) => {
self.worker_name_input = name;
true
}
Msg::FetchData => {
if self.worker_name_input.trim().is_empty() {
self.error_message = Some("Please enter a worker name.".to_string());
return true;
}
let worker_name = self.worker_name_input.trim().to_string();
self.worker_name_to_monitor = Some(worker_name.clone());
self.error_message = None;
self.tasks_list.clear();
self.current_queue_stats = None;
self.selected_task_details = None;
self.is_loading_initial_data = true;
let link = ctx.link().clone();
let tasks_url = format!("/api/worker/{}/tasks_and_stats", worker_name);
spawn_local(async move {
match Request::get(&tasks_url).send().await {
Ok(response) => {
if response.ok() {
match response.json::<WorkerDataResponse>().await {
Ok(data) => link.send_message(Msg::SetWorkerData(Ok(data))),
Err(e) => link.send_message(Msg::SetWorkerData(Err(format!(
"Failed to parse worker data: {}",
e
)))),
}
} else {
link.send_message(Msg::SetWorkerData(Err(format!(
"API error: {} {}",
response.status(),
response.status_text()
))));
}
}
Err(e) => link.send_message(Msg::SetWorkerData(Err(format!(
"Network error fetching worker data: {}",
e
)))),
}
});
// Set up polling for queue stats
let link_for_timer = ctx.link().clone();
let timer = Interval::new(5000, move || {
// Poll every 5 seconds
link_for_timer.send_message(Msg::IntervalTick);
});
if let Some(old_timer) = self.queue_poll_timer.take() {
old_timer.cancel(); // Cancel previous timer if any
}
self.queue_poll_timer = Some(timer);
true
}
Msg::IntervalTick => {
if let Some(worker_name) = &self.worker_name_to_monitor {
let queue_stats_url = format!("/api/worker/{}/queue_stats", worker_name);
let link = ctx.link().clone();
spawn_local(async move {
match Request::get(&queue_stats_url).send().await {
Ok(response) => {
if response.ok() {
match response.json::<QueueStats>().await {
Ok(stats) => {
link.send_message(Msg::SetQueueStats(Ok(stats)))
}
Err(e) => link.send_message(Msg::SetQueueStats(Err(
format!("Failed to parse queue stats: {}", e),
))),
}
} else {
link.send_message(Msg::SetQueueStats(Err(format!(
"API error (queue_stats): {} {}",
response.status(),
response.status_text()
))));
}
}
Err(e) => link.send_message(Msg::SetQueueStats(Err(format!(
"Network error fetching queue stats: {}",
e
)))),
}
});
}
false // No direct re-render, SetQueueStats will trigger it
}
Msg::SetWorkerData(Ok(data)) => {
self.tasks_list = data.tasks;
self.current_queue_stats = data.queue_stats;
self.error_message = None;
self.is_loading_initial_data = false;
true
}
Msg::SetWorkerData(Err(err_msg)) => {
self.error_message = Some(err_msg);
self.is_loading_initial_data = false;
if let Some(timer) = self.queue_poll_timer.take() {
timer.cancel();
}
true
}
Msg::SetQueueStats(Ok(stats)) => {
self.current_queue_stats = Some(stats);
// Don't clear main error message here, as this is a background update
true
}
Msg::SetQueueStats(Err(err_msg)) => {
log::error!("Failed to update queue stats: {}", err_msg);
// Optionally show a non-blocking error for queue stats
self.current_queue_stats = None;
true
}
Msg::ViewTaskDetails(hash) => {
self.is_loading_task_details = true;
self.selected_task_details = None; // Clear previous details
let task_details_url = format!("/api/task/{}", hash);
let link = ctx.link().clone();
spawn_local(async move {
match Request::get(&task_details_url).send().await {
Ok(response) => {
if response.ok() {
match response.json::<TaskDetails>().await {
Ok(details) => {
link.send_message(Msg::SetTaskDetails(Ok(details)))
}
Err(e) => link.send_message(Msg::SetTaskDetails(Err(format!(
"Failed to parse task details: {}",
e
)))),
}
} else {
link.send_message(Msg::SetTaskDetails(Err(format!(
"API error (task_details): {} {}",
response.status(),
response.status_text()
))));
}
}
Err(e) => link.send_message(Msg::SetTaskDetails(Err(format!(
"Network error fetching task details: {}",
e
)))),
}
});
true
}
Msg::SetTaskDetails(Ok(details)) => {
self.selected_task_details = Some(details);
self.error_message = None; // Clear general error if task details load
self.is_loading_task_details = false;
true
}
Msg::SetTaskDetails(Err(err_msg)) => {
self.error_message = Some(format!("Error loading task details: {}", err_msg));
self.selected_task_details = None;
self.is_loading_task_details = false;
true
}
Msg::ClearTaskDetails => {
self.selected_task_details = None;
true
}
}
}
fn view(&self, ctx: &Context<Self>) -> Html {
let link = ctx.link();
let on_worker_name_input = link.callback(|e: InputEvent| {
let input: HtmlInputElement = e.target_unchecked_into();
Msg::UpdateWorkerName(input.value())
});
html! {
<div class="container">
<h1>{ "Rhai Worker Monitor" }</h1>
<div class="input-group">
<input type="text"
placeholder="Enter Worker Name (e.g., worker_default)"
value={self.worker_name_input.clone()}
oninput={on_worker_name_input.clone()}
disabled={self.is_loading_initial_data}
onkeypress={link.callback(move |e: KeyboardEvent| {
if e.key() == "Enter" { Msg::FetchData } else { Msg::UpdateWorkerName(e.target_unchecked_into::<HtmlInputElement>().value()) }
})}
/>
<button onclick={link.callback(|_| Msg::FetchData)} disabled={self.is_loading_initial_data || self.worker_name_input.trim().is_empty()}>
{ if self.is_loading_initial_data { "Loading..." } else { "Load Worker Data" } }
</button>
</div>
if let Some(err) = &self.error_message {
<p class="error">{ err }</p>
}
if self.worker_name_to_monitor.is_some() && !self.is_loading_initial_data && self.error_message.is_none() {
<h2>{ format!("Monitoring: {}", self.worker_name_to_monitor.as_ref().unwrap()) }</h2>
<h3>{ "Queue Status" }</h3>
<div class="queue-visualization">
{
if let Some(stats) = &self.current_queue_stats {
// TODO: Implement actual color coding and bar visualization
html! { <p>{format!("Tasks in queue: {} ({})", stats.current_size, stats.color_code)}</p> }
} else {
html! { <p>{ "Loading queue stats..." }</p> }
}
}
</div>
<h3>{ "Tasks" }</h3>
{ self.view_tasks_table(ctx) }
{ self.view_selected_task_details(ctx) }
} else if self.is_loading_initial_data {
<p>{ "Loading worker data..." }</p>
}
</div>
}
}
}
impl App {
fn view_tasks_table(&self, ctx: &Context<Self>) -> Html {
if self.tasks_list.is_empty()
&& self.worker_name_to_monitor.is_some()
&& !self.is_loading_initial_data
{
return html! { <p>{ "No tasks found for this worker, or worker not found." }</p> };
}
if !self.tasks_list.is_empty() {
html! {
<table class="task-table">
<thead>
<tr>
<th>{ "Hash (click to view)" }</th>
<th>{ "Created At (UTC)" }</th>
<th>{ "Status" }</th>
</tr>
</thead>
<tbody>
{ for self.tasks_list.iter().map(|task| self.view_task_row(ctx, task)) }
</tbody>
</table>
}
} else {
html! {}
}
}
fn view_task_row(&self, ctx: &Context<Self>, task: &TaskSummary) -> Html {
let task_hash_clone = task.hash.clone();
let created_at_str = chrono::DateTime::from_timestamp(task.created_at, 0).map_or_else(
|| "Invalid date".to_string(),
|dt| dt.format("%Y-%m-%d %H:%M:%S").to_string(),
);
html! {
<tr onclick={ctx.link().callback(move |_| Msg::ViewTaskDetails(task_hash_clone.clone()))}
style="cursor: pointer;">
<td>{ task.hash.chars().take(12).collect::<String>() }{ "..." }</td>
<td>{ created_at_str }</td>
<td>{ &task.status }</td>
</tr>
}
}
fn view_selected_task_details(&self, ctx: &Context<Self>) -> Html {
if self.is_loading_task_details {
return html! { <p>{ "Loading task details..." }</p> };
}
if let Some(details) = &self.selected_task_details {
let created_at_str = chrono::DateTime::from_timestamp(details.created_at, 0)
.map_or_else(
|| "Invalid date".to_string(),
|dt| dt.format("%Y-%m-%d %H:%M:%S UTC").to_string(),
);
html! {
<div class="task-details-modal">
<h4>{ format!("Task Details: {}", details.hash) }</h4>
<p><strong>{ "Created At: " }</strong>{ created_at_str }</p>
<p><strong>{ "Status: " }</strong>{ &details.status }</p>
<p><strong>{ "Script Content:" }</strong></p>
<pre>{ &details.script_content }</pre>
if let Some(result) = &details.result {
<p><strong>{ "Result:" }</strong></p>
<pre>{ result }</pre>
}
if let Some(error) = &details.error {
<p><strong>{ "Error:" }</strong></p>
<pre style="color: red;">{ error }</pre>
}
<button onclick={ctx.link().callback(|_| Msg::ClearTaskDetails)}>{ "Close Details" }</button>
</div>
}
} else {
html! {}
}
}
}