//! Integration tests for the job API
//! 
//! These tests validate the complete job lifecycle using a real supervisor instance.
//! They require Redis and a running supervisor to execute properly.

use hero_supervisor_openrpc_client::{SupervisorClient, JobBuilder, JobResult};
use std::time::Duration;
use tokio::time::sleep;
use uuid::Uuid;

/// Test helper to create a unique job for testing
fn create_test_job(context: &str) -> Result<hero_supervisor_openrpc_client::Job, Box<dyn std::error::Error>> {
    JobBuilder::new()
        .caller_id("integration_test")
        .context_id(context)
        .payload("echo 'Test job output'")
        .executor("osis")
        .runner("osis_runner_1")
        .timeout(30)
        .env_var("TEST_VAR", "test_value")
        .build()
        .map_err(|e| e.into())
}

/// Test helper to check if supervisor is available
async fn is_supervisor_available() -> bool {
    match SupervisorClient::new("http://localhost:3030") {
        Ok(client) => client.discover().await.is_ok(),
        Err(_) => false,
    }
}

#[tokio::test]
async fn test_jobs_create_and_start() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();
    let secret = "user-secret-456";
    let job = create_test_job("create_and_start").unwrap();

    // Test jobs.create
    let job_id = client.jobs_create(secret, job).await.unwrap();
    assert!(!job_id.is_empty());

    // Test job.start
    let result = client.job_start(secret, &job_id).await;
    assert!(result.is_ok());
}

#[tokio::test]
async fn test_job_status_monitoring() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();
    let secret = "user-secret-456";
    let job = create_test_job("status_monitoring").unwrap();

    let job_id = client.jobs_create(secret, job).await.unwrap();
    client.job_start(secret, &job_id).await.unwrap();

    // Test job.status
    let mut attempts = 0;
    let max_attempts = 10;

    while attempts < max_attempts {
        let status = client.job_status(&job_id).await.unwrap();
        assert!(!status.job_id.is_empty());
        assert!(!status.status.is_empty());
        assert!(!status.created_at.is_empty());

        if status.status == "completed" || status.status == "failed" {
            break;
        }

        attempts += 1;
        sleep(Duration::from_secs(1)).await;
    }
}

#[tokio::test]
async fn test_job_result_retrieval() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();
    let secret = "user-secret-456";
    let job = create_test_job("result_retrieval").unwrap();

    let job_id = client.jobs_create(secret, job).await.unwrap();
    client.job_start(secret, &job_id).await.unwrap();

    // Wait a bit for job to complete
    sleep(Duration::from_secs(3)).await;

    // Test job.result
    let result = client.job_result(&job_id).await.unwrap();
    match result {
        JobResult::Success { success } => {
            assert!(!success.is_empty());
        },
        JobResult::Error { error } => {
            assert!(!error.is_empty());
        }
    }
}

#[tokio::test]
async fn test_job_run_immediate() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();
    let secret = "user-secret-456";
    let job = create_test_job("immediate_run").unwrap();

    // Test job.run (immediate execution)
    let result = client.job_run(secret, job).await.unwrap();
    match result {
        JobResult::Success { success } => {
            assert!(!success.is_empty());
        },
        JobResult::Error { error } => {
            assert!(!error.is_empty());
        }
    }
}

#[tokio::test]
async fn test_jobs_list() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();

    // Test jobs.list
    let job_ids = client.jobs_list().await.unwrap();
    // Should return a vector (might be empty)
    assert!(job_ids.len() >= 0);
}

#[tokio::test]
async fn test_authentication_failures() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();
    let invalid_secret = "invalid-secret-123";
    let job = create_test_job("auth_failure").unwrap();

    // Test that invalid secrets fail
    let result = client.jobs_create(invalid_secret, job.clone()).await;
    assert!(result.is_err());

    let result = client.job_run(invalid_secret, job.clone()).await;
    assert!(result.is_err());

    let result = client.job_start(invalid_secret, "fake-job-id").await;
    assert!(result.is_err());
}

#[tokio::test]
async fn test_nonexistent_job_operations() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();
    let fake_job_id = format!("nonexistent-{}", Uuid::new_v4());

    // Test operations on nonexistent job should fail
    let result = client.job_status(&fake_job_id).await;
    assert!(result.is_err());

    let result = client.job_result(&fake_job_id).await;
    assert!(result.is_err());
}

#[tokio::test]
async fn test_complete_workflow() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();
    let secret = "user-secret-456";
    let job = create_test_job("complete_workflow").unwrap();

    // Complete workflow test
    let job_id = client.jobs_create(secret, job).await.unwrap();
    client.job_start(secret, &job_id).await.unwrap();

    // Monitor until completion
    let mut final_status = String::new();
    for _ in 0..15 {
        let status = client.job_status(&job_id).await.unwrap();
        final_status = status.status.clone();
        
        if final_status == "completed" || final_status == "failed" || final_status == "timeout" {
            break;
        }
        
        sleep(Duration::from_secs(1)).await;
    }

    // Get final result
    let result = client.job_result(&job_id).await.unwrap();
    match result {
        JobResult::Success { .. } => {
            assert_eq!(final_status, "completed");
        },
        JobResult::Error { .. } => {
            assert!(final_status == "failed" || final_status == "timeout");
        }
    }
}

#[tokio::test]
async fn test_batch_job_processing() {
    if !is_supervisor_available().await {
        println!("Skipping test - supervisor not available");
        return;
    }

    let client = SupervisorClient::new("http://localhost:3030").unwrap();
    let secret = "user-secret-456";
    
    let job_count = 3;
    let mut job_ids = Vec::new();

    // Create multiple jobs
    for i in 0..job_count {
        let job = JobBuilder::new()
            .caller_id("integration_test")
            .context_id(&format!("batch_job_{}", i))
            .payload(&format!("echo 'Batch job {}'", i))
            .executor("osis")
            .runner("osis_runner_1")
            .timeout(30)
            .build()
            .unwrap();

        let job_id = client.jobs_create(secret, job).await.unwrap();
        job_ids.push(job_id);
    }

    // Start all jobs
    for job_id in &job_ids {
        client.job_start(secret, job_id).await.unwrap();
    }

    // Wait for all jobs to complete
    sleep(Duration::from_secs(5)).await;

    // Collect all results
    let mut results = Vec::new();
    for job_id in &job_ids {
        let result = client.job_result(job_id).await.unwrap();
        results.push(result);
    }

    // Verify we got results for all jobs
    assert_eq!(results.len(), job_count);
}