//! Manual probe for the subscription-auth seam. Unit tests cover header
//! selection and the system preamble, but nothing offline can prove Anthropic
//! actually accepts a setup token — this does, against the real API.
//!
//! It builds the same request `cm_api::evaluator::complete_direct` builds, so
//! its `INPUT_TOKENS` line is the honest cost of one phase verdict:
//!
//!     ANTHROPIC_OAUTH_TOKEN=sk-ant-oat01-… cargo run -p cm-llm --example oauth_probe
//!
//! Measured 2026-08-01: **114** input tokens here, against **17,772** for the
//! same verdict routed through a ZeroClaw judge agent.
use cm_llm::{ChatMessage, ChatRequest, ChatRole, ContentPart, LlmEvent, LlmProvider};
use futures::StreamExt as _;

#[tokio::main]
async fn main() {
    let token = std::env::var("ANTHROPIC_OAUTH_TOKEN").expect("ANTHROPIC_OAUTH_TOKEN");
    let p = cm_llm::AnthropicProvider::new(token);
    let req = ChatRequest {
        system: "You judge whether a phase of automated work is complete.\n\nRespond with STRICT JSON ONLY: {\"met\": true|false, \"reason\": \"one sentence\"}".into(),
        model: "claude-haiku-4-5-20251001".into(),
        messages: vec![ChatMessage {
            role: ChatRole::User,
            parts: vec![ContentPart::text(
                "COMPLETION CONDITION:\nThe research output names at least two concrete tradeoffs.\n\nEVIDENCE:\nThe agent produced: (1) fail-closed blocks progress on evaluator outage; (2) fail-open can falsely approve. Both named with consequences.",
            )],
        }],
        tools: vec![],
        max_tokens: 512,
        web_search: false,
    };
    let mut text = String::new();
    let mut stream = p.stream(req).await.expect("stream");
    while let Some(ev) = stream.next().await {
        match ev {
            Ok(LlmEvent::TextDelta(t)) => text.push_str(&t),
            Ok(LlmEvent::Usage { input_tokens, .. }) => eprintln!("INPUT_TOKENS={input_tokens}"),
            Ok(_) => {}
            Err(e) => {
                eprintln!("ERR: {e}");
                std::process::exit(1);
            }
        }
    }
    println!("REPLY: {text}");
}