use super::{deposit, get_asset_manager_and_ledger};
use crate::{AccountId, Asset};

#[tokio::test]
async fn pending_deposit_and_failure() {
    let source = "account1".parse::<AccountId>().expect("account");
    let ledger = get_asset_manager_and_ledger().await;
    let usd: Asset = "USD/2".parse().expect("asset");
    let rev_id = ledger
        .deposit(
            &source,
            usd.from_human("30").expect("amount"),
            "processing".into(),
            vec![],
            "Test".to_owned(),
        )
        .await
        .expect("valid tx")
        .revision_id
        .clone();

    assert!(ledger
        .get_balance(&source)
        .await
        .expect("balance")
        .is_empty());

    ledger
        .change_status(rev_id, "failed".into(), "failed due test".to_owned())
        .await
        .expect("valid tx");

    assert!(ledger
        .get_balance(&source)
        .await
        .expect("balance")
        .is_empty());
}

#[tokio::test]
async fn deposit_and_transfer() {
    let source = "account1".parse::<AccountId>().expect("account");
    let dest = "account2".parse::<AccountId>().expect("account");
    let fee = "fee".parse::<AccountId>().expect("account");
    let ledger = get_asset_manager_and_ledger().await;
    let usd: Asset = "USD/2".parse().expect("asset");
    let btc: Asset = "BTC/8".parse().expect("asset");

    deposit(&ledger, &source, usd.from_human("10").expect("amount")).await;
    deposit(&ledger, &source, usd.from_human("20").expect("amount")).await;
    deposit(&ledger, &source, btc.from_human(".2").expect("amount")).await;

    let mut balances = ledger.get_balance(&source).await.expect("balance");
    balances.sort_by(|a, b| a.asset().name.cmp(&b.asset().name));
    assert_eq!(
        vec![
            btc.from_human("0.2").expect("amount"),
            usd.from_human("30").expect("amount")
        ],
        balances
    );

    ledger
        .new_transaction(
            "Exchange one".to_owned(),
            "settled".into(),
            vec![(source.clone(), usd.from_human("13").expect("amount"))],
            vec![
                (dest.clone(), usd.from_human("12.5").expect("amount")),
                (fee.clone(), usd.from_human("0.5").expect("amount")),
            ],
        )
        .await
        .expect("valid tx");

    let mut balances = ledger.get_balance(&source).await.expect("balance");
    balances.sort_by(|a, b| a.asset().name.cmp(&b.asset().name));
    assert_eq!(
        vec![
            btc.from_human("0.2").expect("amount"),
            usd.from_human("17").expect("amount")
        ],
        balances
    );
    assert_eq!(
        vec![usd.from_human("12.5").expect("amount"),],
        ledger.get_balance(&dest).await.expect("balance")
    );
    assert_eq!(
        vec![usd.from_human("0.5").expect("amount"),],
        ledger.get_balance(&fee).await.expect("balance")
    );
}

#[tokio::test]
async fn balance_decreases_while_pending_spending_and_confirm() {
    let source = "account1".parse::<AccountId>().expect("account");
    let dest = "account2".parse::<AccountId>().expect("account");
    let fee = "fee".parse::<AccountId>().expect("account");
    let ledger = get_asset_manager_and_ledger().await;
    let usd: Asset = "USD/2".parse().expect("asset");

    deposit(&ledger, &source, usd.from_human("10").expect("amount")).await;
    deposit(&ledger, &source, usd.from_human("20").expect("amount")).await;

    assert_eq!(
        vec![usd.from_human("30").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );

    let rev_id = ledger
        .new_transaction(
            "Exchange one".to_owned(),
            "pending".into(),
            vec![(source.clone(), usd.from_human("13").expect("amount"))],
            vec![
                (dest.clone(), usd.from_human("12.5").expect("amount")),
                (fee.clone(), usd.from_human("0.5").expect("amount")),
            ],
        )
        .await
        .expect("valid tx")
        .revision_id
        .clone();

    assert_eq!(
        vec![usd.from_human("17").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );
    assert!(ledger.get_balance(&dest).await.expect("balance").is_empty());
    assert!(ledger.get_balance(&fee).await.expect("balance").is_empty());

    ledger
        .change_status(rev_id, "settled".into(), "ready".to_owned())
        .await
        .expect("valid tx");

    assert_eq!(
        vec![usd.from_human("17").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );
    assert_eq!(
        vec![usd.from_human("12.5").expect("amount"),],
        ledger.get_balance(&dest).await.expect("balance")
    );
    assert_eq!(
        vec![usd.from_human("0.5").expect("amount"),],
        ledger.get_balance(&fee).await.expect("balance")
    );
}

#[tokio::test]
async fn balance_decreases_while_pending_spending_and_cancel() {
    let source = "account1".parse::<AccountId>().expect("account");
    let dest = "account2".parse::<AccountId>().expect("account");
    let fee = "fee".parse::<AccountId>().expect("account");
    let ledger = get_asset_manager_and_ledger().await;
    let usd: Asset = "USD/2".parse().expect("asset");

    deposit(&ledger, &source, usd.from_human("10").expect("amount")).await;
    deposit(&ledger, &source, usd.from_human("20").expect("amount")).await;

    assert_eq!(
        vec![usd.from_human("30").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );

    let rev_id = ledger
        .new_transaction(
            "Exchange one".to_owned(),
            "pending".into(),
            vec![(source.clone(), usd.from_human("13").expect("amount"))],
            vec![
                (dest.clone(), usd.from_human("12.5").expect("amount")),
                (fee.clone(), usd.from_human("0.5").expect("amount")),
            ],
        )
        .await
        .expect("valid tx")
        .revision_id
        .clone();

    assert_eq!(
        vec![usd.from_human("17").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );
    assert!(ledger.get_balance(&dest).await.expect("balance").is_empty());
    assert!(ledger.get_balance(&fee).await.expect("balance").is_empty());

    ledger
        .change_status(rev_id, "cancelled".into(), "cancelled by test".to_owned())
        .await
        .expect("valid tx");

    assert_eq!(
        vec![usd.from_human("30").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );
    assert!(ledger.get_balance(&dest).await.expect("balance").is_empty());
    assert!(ledger.get_balance(&fee).await.expect("balance").is_empty());
}

#[tokio::test]
async fn balance_decreases_while_pending_spending_and_failed() {
    let source = "account1".parse::<AccountId>().expect("account");
    let dest = "account2".parse::<AccountId>().expect("account");
    let fee = "fee".parse::<AccountId>().expect("account");
    let ledger = get_asset_manager_and_ledger().await;
    let usd: Asset = "USD/2".parse().expect("asset");

    deposit(&ledger, &source, usd.from_human("10").expect("amount")).await;
    deposit(&ledger, &source, usd.from_human("20").expect("amount")).await;

    assert_eq!(
        vec![usd.from_human("30").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );

    let rev_id = ledger
        .new_transaction(
            "Exchange one".to_owned(),
            "pending".into(),
            vec![(source.clone(), usd.from_human("13").expect("amount"))],
            vec![
                (dest.clone(), usd.from_human("12.5").expect("amount")),
                (fee.clone(), usd.from_human("0.5").expect("amount")),
            ],
        )
        .await
        .expect("valid tx")
        .revision_id
        .clone();

    assert_eq!(
        vec![usd.from_human("17").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );
    assert!(ledger.get_balance(&dest).await.expect("balance").is_empty());
    assert!(ledger.get_balance(&fee).await.expect("balance").is_empty());

    let new_rev_id = ledger
        .change_status(rev_id, "processing".into(), "processing now".to_owned())
        .await
        .expect("valid tx")
        .revision_id;

    assert_eq!(
        vec![usd.from_human("17").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );
    assert!(ledger.get_balance(&dest).await.expect("balance").is_empty());
    assert!(ledger.get_balance(&fee).await.expect("balance").is_empty());

    assert_eq!(
        "Transaction: Error in status: Invalid transition from processing to cancelled".to_owned(),
        ledger
            .change_status(
                new_rev_id.clone(),
                "cancelled".into(),
                "cancelled by user".to_owned()
            )
            .await
            .unwrap_err()
            .to_string()
    );

    assert_eq!(
        vec![usd.from_human("17").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );
    assert!(ledger.get_balance(&dest).await.expect("balance").is_empty());
    assert!(ledger.get_balance(&fee).await.expect("balance").is_empty());

    ledger
        .change_status(new_rev_id, "failed".into(), "it has failed".to_owned())
        .await
        .expect("valid");

    assert_eq!(
        vec![usd.from_human("30").expect("amount"),],
        ledger.get_balance(&source).await.expect("balance")
    );
    assert!(ledger.get_balance(&dest).await.expect("balance").is_empty());
    assert!(ledger.get_balance(&fee).await.expect("balance").is_empty());
}