use std::error::Error;

use anyhow::Context;
use config::Config;
use deez::auth::{request_access_token, AuthPromptHandler};
use serde::Deserialize;

#[derive(Deserialize)]
struct Settings
{
    app_id: u32,
    secret_key: String,
    address: String,
    port: u16,
    uri_scheme: String,
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error + Send + Sync>>
{
    let settings = Config::builder()
        .add_source(config::File::with_name("examples/access_token/Settings"))
        .build()
        .with_context(|| "Failed to read settings")?
        .try_deserialize::<Settings>()
        .with_context(|| "Invalid settings")?;

    let auth_code_prompt_info = AuthPromptHandler::run(
        settings.app_id,
        settings.address,
        settings.port,
        settings.uri_scheme,
    )
    .await?;

    println!("{}", auth_code_prompt_info.auth_prompt_url);

    let auth_code = auth_code_prompt_info.handler.await??;

    println!("Retrieved authentication code '{}'", auth_code);

    let access_token =
        request_access_token(settings.app_id, settings.secret_key, auth_code).await?;

    println!(
        "Retrieved access token '{}' which expires in {} seconds",
        access_token.access_token,
        access_token.expires.as_secs()
    );

    Ok(())
}