//! Minimal `query()` example.
//!
//! Run:
//!
//! ```sh
//! cargo run --example basic
//! ```
//!
//! Requires the `claude` CLI on `PATH` and authenticated. Output prints each
//! assistant text block, then the total cost from the terminal `result`
//! message.

use claude_agent_sdk::{ClaudeAgentOptions, ContentBlock, Message, query};
use tokio_stream::StreamExt;

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    tracing_subscriber::fmt()
        .with_env_filter(
            tracing_subscriber::EnvFilter::try_from_default_env()
                .unwrap_or_else(|_| "claude_agent_sdk=info".into()),
        )
        .init();

    let opts = ClaudeAgentOptions::new().with_max_turns(1);

    let mut stream = query("What is 2 + 2? Reply with just the digit.", opts).await?;

    while let Some(item) = stream.next().await {
        match item? {
            Message::Assistant(a) => {
                for block in &a.message.content {
                    if let ContentBlock::Text(t) = block {
                        println!("Claude: {}", t.text);
                    }
                }
            }
            Message::Result(r) => {
                println!(
                    "\n[result] subtype={} turns={} cost_usd={:?}",
                    r.subtype, r.num_turns, r.total_cost_usd
                );
                break;
            }
            _ => {}
        }
    }

    Ok(())
}