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//! Billing service client.
//!
//! Provides gRPC clients for managing billing information, payment methods, invoices,
//! prepaid credits, and spending limits.
pub mod client {
use crate::common;
use crate::common::interceptor::ClientInterceptor;
use crate::export::service::{Interceptor, interceptor::InterceptedService};
use crate::export::transport::{Channel, Error};
use crate::prod_mc_billing::ui_svc_client::UiSvcClient as XUiSvcClient;
pub type BillingClient = XUiSvcClient<InterceptedService<Channel, ClientInterceptor>>;
/// Creates a new authenticated `BillingClient` connected to the xAI API.
///
/// Establishes a secure TLS connection with Bearer token authentication.
///
/// # Arguments
/// * `api_key` - Valid xAI API key for authentication
///
/// # Returns
/// * `Result<BillingClient, Error>` - Connected client or transport error
///
pub async fn new(api_key: &str) -> Result<BillingClient, Error> {
let channel = common::channel::new().await?;
let auth_intercept = common::interceptor::auth(api_key);
let client = XUiSvcClient::with_interceptor(channel, auth_intercept);
Ok(client)
}
/// Creates a new authenticated `BillingClient` using an existing gRPC channel.
///
/// Useful for sharing connections across multiple service clients.
///
/// # Arguments
/// * `channel` - Existing TLS-secured gRPC channel to xAI API
/// * `api_key` - Valid xAI API key for authentication
///
/// # Returns
/// * `BillingClient` - Authenticated client using the provided channel
pub fn with_channel(channel: Channel, api_key: &str) -> BillingClient {
let auth_intercept = common::interceptor::auth(api_key);
let client = XUiSvcClient::with_interceptor(channel, auth_intercept);
client
}
/// Creates a new `BillingClient` with a custom interceptor.
///
/// Creates a new TLS connection but uses the provided interceptor instead of
/// the default authentication interceptor.
///
/// # Arguments
/// * `interceptor` - Custom request interceptor (must handle authentication)
///
/// # Returns
/// * `Result<BillingClient, Error>` - Intercepted client or connection error
///
pub async fn with_interceptor(
interceptor: impl Interceptor + Send + Sync + 'static,
) -> Result<BillingClient, Error> {
let channel = common::channel::new().await?;
let client = XUiSvcClient::with_interceptor(channel, ClientInterceptor::new(interceptor));
Ok(client)
}
/// Creates a new `BillingClient` with an existing channel and custom interceptor.
///
/// Combines a shared channel with custom request interception.
///
/// # Arguments
/// * `channel` - Existing TLS-secured gRPC channel to xAI API
/// * `interceptor` - Custom request interceptor (must handle authentication)
///
/// # Returns
/// * `BillingClient` - Intercepted client using the provided channel
pub fn with_channel_and_interceptor(
channel: Channel,
interceptor: impl Interceptor + Send + Sync + 'static,
) -> BillingClient {
XUiSvcClient::with_interceptor(channel, ClientInterceptor::new(interceptor))
}
}