/// Complete End-to-End OSIRIS Example
/// 
/// This example demonstrates the complete OSIRIS workflow:
/// 1. Starting the runner_osiris daemon
/// 2. Creating jobs with JobBuilder
/// 3. Running jobs with run_job() (synchronous)
/// 4. Creating OSIRIS objects (Note, Event)
/// 5. Storing objects in contexts
/// 6. Querying and retrieving data
/// 7. Proper cleanup
/// 
/// Prerequisites:
/// - Redis running on localhost:6379
/// 
/// Run with:
/// ```bash
/// cargo run --example osiris_complete
/// ```

use runner_rust::job::{JobBuilder, Client};
use std::time::Duration;
use tokio::process::Command;
use tokio::time::sleep;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    println!("🚀 OSIRIS Complete End-to-End Example");
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n");
    
    // ========================================================================
    // STEP 1: Start the runner daemon
    // ========================================================================
    println!("Step 1: Starting runner_osiris daemon");
    println!("─────────────────────────────────────────────────────────────\n");
    
    let mut runner = Command::new("cargo")
        .args(&[
            "run",
            "--bin",
            "runner_osiris",
            "--",
            "demo_runner",
            "--db-path",
            "/tmp/osiris_complete.db",
            "--redis-url",
            "redis://localhost:6379",
        ])
        .spawn()?;
    
    println!("✓ Runner started (PID: {})", runner.id().unwrap_or(0));
    println!("  Runner ID: demo_runner");
    println!("  Queue: demo_runner");
    println!("  DB: /tmp/osiris_complete.db");
    
    // Give the runner time to initialize
    sleep(Duration::from_secs(2)).await;
    println!("\n");
    
    // ========================================================================
    // STEP 2: Create job client
    // ========================================================================
    println!("Step 2: Creating job client");
    println!("─────────────────────────────────────────────────────────────\n");
    
    let client = Client::builder()
        .redis_url("redis://localhost:6379")
        .build()
        .await?;
    
    println!("✓ Job client created\n");
    
    // ========================================================================
    // STEP 3: Create and store a Note
    // ========================================================================
    println!("Step 3: Creating and Storing a Note");
    println!("─────────────────────────────────────────────────────────────\n");
    
    let create_note_script = std::fs::read_to_string("examples/osiris/note.rhai")?;
    
    let job1 = JobBuilder::new()
        .caller_id("example_client")
        .context_id("demo_context")
        .payload(&create_note_script)
        .runner("demo_runner")
        .executor("rhai")
        .timeout(30)
        .signature("alice", "")
        .signature("bob", "")
        .signature("charlie", "")
        .build()?;
    
    println!("Running job: Create Note");
    println!("Job ID: {}", job1.id);
    
    match client.run_job(&job1, "demo_runner", 60).await {
        Ok(result) => {
            println!("\n✅ {}\n", result);
        }
        Err(e) => {
            println!("\n❌ Job failed: {}\n", e);
            let _ = runner.kill().await;
            return Err(format!("Job failed: {}", e).into());
        }
    }
    
    // ========================================================================
    // STEP 4: Create and store an Event
    // ========================================================================
    println!("Step 4: Creating and Storing an Event");
    println!("─────────────────────────────────────────────────────────────\n");
    
    let create_event_script = std::fs::read_to_string("examples/osiris/event.rhai")?;
    
    let job2 = JobBuilder::new()
        .caller_id("example_client")
        .context_id("demo_context")
        .payload(&create_event_script)
        .runner("demo_runner")
        .executor("rhai")
        .timeout(30)
        .signature("alice", "")
        .signature("bob", "")
        .signature("charlie", "")
        .build()?;
    
    println!("Running job: Create Event");
    println!("Job ID: {}", job2.id);
    
    match client.run_job(&job2, "demo_runner", 60).await {
        Ok(result) => {
            println!("\n✅ {}\n", result);
        }
        Err(e) => {
            println!("\n❌ Job failed: {}\n", e);
            let _ = runner.kill().await;
            return Err(format!("Job failed: {}", e).into());
        }
    }
    
    // ========================================================================
    // STEP 5: Query context data
    // ========================================================================
    println!("Step 5: Querying Context Data");
    println!("─────────────────────────────────────────────────────────────\n");
    
    let query_script = std::fs::read_to_string("examples/osiris/query.rhai")?;
    
    let job3 = JobBuilder::new()
        .caller_id("example_client")
        .context_id("demo_context")
        .payload(&query_script)
        .runner("demo_runner")
        .executor("rhai")
        .timeout(30)
        .signature("alice", "")
        .signature("bob", "")
        .signature("charlie", "")
        .build()?;
    
    println!("Running job: Query Data");
    println!("Job ID: {}", job3.id);
    
    match client.run_job(&job3, "demo_runner", 60).await {
        Ok(result) => {
            println!("\n✅ {}\n", result);
        }
        Err(e) => {
            println!("\n❌ Job failed: {}\n", e);
            let _ = runner.kill().await;
            return Err(format!("Job failed: {}", e).into());
        }
    }
    
    // ========================================================================
    // STEP 6: Demonstrate access control
    // ========================================================================
    println!("Step 6: Testing Access Control");
    println!("─────────────────────────────────────────────────────────────\n");
    
    let access_denied_script = std::fs::read_to_string("examples/osiris/access_denied.rhai")?;
    
    let job4 = JobBuilder::new()
        .caller_id("example_client")
        .context_id("demo_context")
        .payload(&access_denied_script)
        .runner("demo_runner")
        .executor("rhai")
        .timeout(30)
        .signature("alice", "")
        .signature("bob", "")
        .signature("charlie", "")
        .build()?;
    
    println!("Running job: Access Control Test");
    println!("Job ID: {}", job4.id);
    println!("Expected: Access denied\n");
    
    match client.run_job(&job4, "demo_runner", 60).await {
        Ok(result) => {
            println!("❌ Unexpected success: {}\n", result);
        }
        Err(e) => {
            println!("✅ Access denied as expected");
            println!("   Error: {}\n", e);
        }
    }
    
    // ========================================================================
    // STEP 7: Cleanup
    // ========================================================================
    println!("Step 7: Cleanup");
    println!("─────────────────────────────────────────────────────────────\n");
    
    println!("Stopping runner...");
    runner.kill().await?;
    println!("✓ Runner stopped\n");
    
    // ========================================================================
    // Summary
    // ========================================================================
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
    println!("🎉 Complete Example Finished!\n");
    println!("📝 What We Demonstrated:");
    println!("  ✓ Started runner_osiris daemon");
    println!("  ✓ Created job client with builder pattern");
    println!("  ✓ Built jobs with JobBuilder");
    println!("  ✓ Used run_job() for synchronous execution");
    println!("  ✓ Created OSIRIS Note object");
    println!("  ✓ Created OSIRIS Event object");
    println!("  ✓ Stored objects in contexts");
    println!("  ✓ Queried and retrieved data");
    println!("  ✓ Demonstrated participant-based access control");
    println!("  ✓ Proper cleanup and shutdown");
    println!("\n🏗️  Architecture:");
    println!("  • Contexts defined by participant public keys");
    println!("  • At least one participant must be a signatory");
    println!("  • No state tracking - contexts created on demand");
    println!("  • Jobs executed via Redis queue");
    println!("  • Results returned synchronously");
    println!("\n💡 Key Features:");
    println!("  • Simple API: client.run_job()");
    println!("  • Fluent builders: JobBuilder, note(), event()");
    println!("  • Automatic waiting and result extraction");
    println!("  • Proper error handling and timeouts");
    println!("  • Production-ready job infrastructure");
    
    Ok(())
}