use azure_core::{date, new_http_client};
use azure_identity::client_credentials_flow;
use std::{
    env::{args, var},
    error::Error,
};
use time::OffsetDateTime;

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    let client_id = var("CLIENT_ID").expect("Missing CLIENT_ID environment variable.");
    let client_secret = var("CLIENT_SECRET").expect("Missing CLIENT_SECRET environment variable.");
    let tenant_id = var("TENANT_ID").expect("Missing TENANT_ID environment variable.");

    let storage_account_name = args()
        .nth(1)
        .expect("please specify the storage account name as first command line parameter");
    let container_name = args()
        .nth(2)
        .expect("please specify the container name as second command line parameter");

    let http_client = new_http_client();

    let token = client_credentials_flow::perform(
        http_client,
        &client_id,
        &client_secret,
        &[&format!(
            "https://{storage_account_name}.blob.core.windows.net/.default"
        )],
        &tenant_id,
    )
    .await?;

    println!("token received: {token:?}");
    println!("token secret: {}", token.access_token().secret());

    let dt = OffsetDateTime::now_utc();
    let time = date::to_rfc1123(&dt);
    println!("x-ms-date ==> {time}");

    let resp = reqwest::Client::new()
        .get(&format!(
            "https://{storage_account_name}.blob.core.windows.net/{container_name}?restype=container&comp=list"
        ))
        .header(
            "Authorization",
            format!("Bearer {}", token.access_token().secret()),
        )
        .header("x-ms-version", "2019-07-07")
        .header("x-ms-date", time)
        .send()
        .await?
        .text()
        .await?;

    println!("\n\nresp {resp:?}");

    Ok(())
}