ray-dashboard-sdk 0.4.0

use std::{
    sync::Arc,
    time::{Duration, Instant},
};

use futures_timer::Delay;
use tracing::debug;

use crate::{
    client::{HttpClient, PackagesClient},
    schema::jobs::{
        JobDeleteResponse, JobDetails, JobLogsResponse, JobStatus, JobStopResponse, JobSubmitRequest,
        JobSubmitResponse,
    },
};

/// Client for the Ray Job Submission API.
///
/// Obtained via [`RayDashboardClient::jobs`](crate::RayDashboardClient::jobs).
#[derive(Debug, Clone)]
pub struct JobsClient {
    http: Arc<HttpClient>,
}

impl JobsClient {
    pub(crate) fn new(http: Arc<HttpClient>) -> Self {
        Self { http }
    }

    /// Submit a new job
    pub async fn submit(&self, payload: &JobSubmitRequest) -> crate::Result<JobSubmitResponse> {
        // Clone the payload so we can potentially modify the runtime_env
        let mut payload = payload.clone();

        // Check if there's a runtime_env with a working_dir that needs to be uploaded
        if let Some(ref mut runtime_env) = payload.runtime_env
            && let Some(ref working_dir_path) = runtime_env.working_dir
        {
            debug!("Uploading working directory: {:?}", working_dir_path);

            // Upload the directory and get the full package URI
            let package_uri = PackagesClient::new(self.http.clone())
                .upload_directory(working_dir_path)
                .await?;

            debug!("Working directory uploaded, URI: {}", package_uri);

            // Update the runtime_env with the package URI string
            runtime_env.working_dir = Some(package_uri.to_string().into());
        }

        let path = "/api/jobs/";
        let request = self.http.request(reqwest::Method::POST, path)?;
        let response = request.json(&payload).send().await?.error_for_status()?;
        Ok(response.json::<JobSubmitResponse>().await?)
    }

    /// List all jobs
    pub async fn list(&self) -> crate::Result<Vec<JobDetails>> {
        let path = "/api/jobs/";
        let request = self.http.request(reqwest::Method::GET, path)?;
        let response = request.send().await?.error_for_status()?;
        Ok(response.json::<Vec<JobDetails>>().await?)
    }

    /// Get job details by submission ID
    pub async fn get(&self, submission_id: &str) -> crate::Result<JobDetails> {
        let path = format!("/api/jobs/{}", submission_id);
        let request = self.http.request(reqwest::Method::GET, &path)?;
        let response = request.send().await?.error_for_status()?;
        Ok(response.json::<JobDetails>().await?)
    }

    /// Get job status by fetching details and then extracting status
    pub async fn status(&self, submission_id: &str) -> crate::Result<JobStatus> {
        let details = self.get(submission_id).await?;
        Ok(details.status)
    }

    /// Delete a job
    pub async fn delete(&self, submission_id: &str) -> crate::Result<JobDeleteResponse> {
        let path = format!("/api/jobs/{}", submission_id);
        let request = self.http.request(reqwest::Method::DELETE, &path)?;
        let response = request.send().await?.error_for_status()?;
        Ok(response.json::<JobDeleteResponse>().await?)
    }

    /// Stop a running job
    pub async fn stop(&self, submission_id: &str) -> crate::Result<JobStopResponse> {
        let path = format!("/api/jobs/{}/stop", submission_id);
        let request = self.http.request(reqwest::Method::POST, &path)?;
        let response = request.send().await?.error_for_status()?;
        Ok(response.json::<JobStopResponse>().await?)
    }

    /// Get the logs for a job
    pub async fn logs(&self, submission_id: &str) -> crate::Result<JobLogsResponse> {
        let path = format!("/api/jobs/{}/logs", submission_id);
        let request = self.http.request(reqwest::Method::GET, &path)?;
        let response = request.send().await?.error_for_status()?;
        Ok(response.json::<JobLogsResponse>().await?)
    }

    /// Wait for the job to reach a terminal state
    /// Return an error if the job does not reach a terminal state within the provided max duration.
    pub async fn wait_for_terminal(
        &self,
        submission_id: &str,
        max_duration: Option<Duration>,
    ) -> crate::Result<()> {
        let start = Instant::now();

        loop {
            let status = self.status(submission_id).await?;
            if status.is_terminal() {
                return Ok(());
            }

            if let Some(max_duration) = max_duration
                && start.elapsed() >= max_duration
            {
                return Err(crate::Error::Generic(format!(
                    "Job {} did not reach terminal state within {:?}",
                    submission_id, max_duration
                )));
            }

            Delay::new(Duration::from_millis(500)).await;
        }
    }
}