//! Just run this program: It will ask you for authorization to view metadata,
//! and then display you the contents of your Google Drive root directory.
//!
//! This example demonstrates how to use the [interactive OAuth 2 flow for installed
//! applications.](https://developers.google.com/identity/protocols/OAuth2InstalledApp)
//!
//! Copyright (c) 2016 Google, Inc. (Lewin Bormann <lbo@spheniscida.de>)

use std::path::Path;

use hyper::net::HttpsConnector;
use hyper_native_tls::NativeTlsClient;

use google_drive3::DriveHub;
use yup_oauth2::{
    read_application_secret, ApplicationSecret, Authenticator, DefaultAuthenticatorDelegate,
    DiskTokenStorage, FlowType,
};

const CLIENT_SECRET_FILE: &'static str = "example_client_secret.json";

// reads the provided example client secret, the quick and dirty way.
fn read_client_secret(file: String) -> ApplicationSecret {
    read_application_secret(Path::new(&file)).unwrap()
}

fn main() {
    let secret = read_client_secret(CLIENT_SECRET_FILE.to_string());
    let client =
        hyper::Client::with_connector(HttpsConnector::new(NativeTlsClient::new().unwrap()));
    let authenticator = Authenticator::new(
        &secret,
        DefaultAuthenticatorDelegate,
        client,
        DiskTokenStorage::new(&"token_store.json".to_string()).unwrap(),
        Some(FlowType::InstalledInteractive),
    );
    let client =
        hyper::Client::with_connector(HttpsConnector::new(NativeTlsClient::new().unwrap()));
    let hub = DriveHub::new(client, authenticator);

    let (_resp, list_result) = hub
        .files()
        .list()
        .q("'root' in parents and trashed = false")
        .doit()
        .unwrap();

    for file in list_result.files.unwrap_or(vec![]) {
        println!(
            "{} ({})",
            file.name.unwrap_or(String::new()),
            file.mime_type.unwrap_or(String::new())
        );
    }
}