magi-code 0.64.0

use crate::providers::{
    anthropic::ANTHROPIC_VERSION, claude_code::auth::ClaudeCodeAccessMode,
    openai::package_user_agent,
};
use std::collections::BTreeMap;

const BASE_BETAS: &str = "interleaved-thinking-2025-05-14,fine-grained-tool-streaming-2025-05-14";
const OAUTH_BETAS: &str = "interleaved-thinking-2025-05-14,fine-grained-tool-streaming-2025-05-14,claude-code-20250219,oauth-2025-04-20";

pub(crate) fn claude_code_headers(auth: ClaudeCodeAccessMode<'_>) -> BTreeMap<String, String> {
    let mut headers = BTreeMap::from([
        ("accept".to_string(), "text/event-stream".to_string()),
        (
            "anthropic-version".to_string(),
            ANTHROPIC_VERSION.to_string(),
        ),
        ("content-type".to_string(), "application/json".to_string()),
    ]);
    match auth {
        ClaudeCodeAccessMode::ApiKey(key) => {
            headers.insert("anthropic-beta".to_string(), BASE_BETAS.to_string());
            headers.insert("user-agent".to_string(), package_user_agent());
            headers.insert("x-api-key".to_string(), key.to_string());
        }
        ClaudeCodeAccessMode::OAuth(token) => {
            headers.insert("anthropic-beta".to_string(), OAUTH_BETAS.to_string());
            headers.insert("authorization".to_string(), format!("Bearer {token}"));
            headers.insert(
                "user-agent".to_string(),
                format!("claude-cli/{} (external, cli)", env!("CARGO_PKG_VERSION")),
            );
            headers.insert("x-app".to_string(), "cli".to_string());
        }
    }
    headers
}