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// 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/>.

use std::{
    ops::{Deref, DerefMut},
    path::PathBuf,
};
use tempdir::TempDir;

use parity_runtime::{Runtime, TaskExecutor};

use authcodes::AuthCodes;

/// Server with event loop
pub struct Server<T> {
    /// Server
    pub server: T,
    /// RPC Event Loop
    pub event_loop: Runtime,
}

impl<T> Server<T> {
    pub fn new<F>(f: F) -> Server<T>
    where
        F: FnOnce(TaskExecutor) -> T,
    {
        let event_loop = Runtime::with_thread_count(1);
        let remote = event_loop.raw_executor();

        Server {
            server: f(remote),
            event_loop,
        }
    }
}

impl<T> Deref for Server<T> {
    type Target = T;

    fn deref(&self) -> &Self::Target {
        &self.server
    }
}

/// Struct representing authcodes
pub struct GuardedAuthCodes {
    authcodes: AuthCodes,
    _tempdir: TempDir,
    /// The path to the mock authcodes
    pub path: PathBuf,
}

impl Default for GuardedAuthCodes {
    fn default() -> Self {
        let tempdir = TempDir::new("").unwrap();
        let path = tempdir.path().join("file");

        GuardedAuthCodes {
            authcodes: AuthCodes::from_file(&path).unwrap(),
            _tempdir: tempdir,
            path,
        }
    }
}

impl Deref for GuardedAuthCodes {
    type Target = AuthCodes;
    fn deref(&self) -> &Self::Target {
        &self.authcodes
    }
}

impl DerefMut for GuardedAuthCodes {
    fn deref_mut(&mut self) -> &mut AuthCodes {
        &mut self.authcodes
    }
}