use azure_storage::prelude::*;
use azure_storage_blobs::prelude::*;

#[tokio::main]
async fn main() -> azure_core::Result<()> {
    // First we retrieve the account name and access key from environment variables.
    let account =
        std::env::var("STORAGE_ACCOUNT").expect("Set env variable STORAGE_ACCOUNT first!");
    let access_key =
        std::env::var("STORAGE_ACCESS_KEY").expect("Set env variable STORAGE_ACCESS_KEY first!");

    let source_container = std::env::args()
        .nth(1)
        .expect("please specify source container name as first command line parameter");
    let source_blob = std::env::args()
        .nth(2)
        .expect("please specify source blob name as second command line parameter");
    let destination_container = std::env::args()
        .nth(3)
        .expect("please specify destination container name as third command line parameter");
    let destination_blob = std::env::args()
        .nth(4)
        .expect("please specify destination blob name as fourth command line parameter");

    let storage_credentials = StorageCredentials::access_key(account.clone(), access_key);
    let blob_service = BlobServiceClient::new(account, storage_credentials);
    let blob_client = blob_service
        .container_client(&destination_container)
        .blob_client(&destination_blob);

    let source_url = blob_service
        .url()?
        .join(&source_container)?
        .join(&source_blob)?;

    let response = blob_client
        .copy_from_url(source_url)
        .is_synchronous(true)
        .await?;

    println!("response == {response:?}");

    Ok(())
}