// Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of OpenEthereum.

// OpenEthereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// OpenEthereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with OpenEthereum.  If not, see <http://www.gnu.org/licenses/>.

//! Types used in the public api

pub mod error;
pub mod filter;
pub mod flat;
pub mod localized;
pub mod trace;

use self::flat::FlatTransactionTraces;

/// Container for block traces.
#[derive(Clone)]
pub enum Tracing {
    /// This variant should be used when tracing is enabled.
    Enabled(Vec<FlatTransactionTraces>),
    /// Tracing is disabled.
    Disabled,
}

impl Tracing {
    /// Creates new instance of enabled tracing object.
    pub fn enabled() -> Self {
        Tracing::Enabled(Default::default())
    }

    /// Returns true if tracing is enabled.
    pub fn is_enabled(&self) -> bool {
        match *self {
            Tracing::Enabled(_) => true,
            Tracing::Disabled => false,
        }
    }

    /// Drain all traces.
    pub fn drain(self) -> Vec<FlatTransactionTraces> {
        match self {
            Tracing::Enabled(traces) => traces,
            Tracing::Disabled => vec![],
        }
    }
}