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/*
 * Copyright (C) 2022 Vaticle
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

use std::fmt;

use uuid::Uuid;

#[derive(Clone, Eq, Hash, PartialEq)]
pub struct ID(Vec<u8>);

impl ID {
    const PREFIX: &'static str = "0x";

    pub(crate) fn generate() -> Self {
        Uuid::new_v4().as_bytes().to_vec().into()
    }
}

impl From<ID> for Vec<u8> {
    fn from(id: ID) -> Self {
        id.0
    }
}

impl From<Vec<u8>> for ID {
    fn from(vec: Vec<u8>) -> Self {
        Self(vec)
    }
}

impl fmt::Debug for ID {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "ID[{self}]")
    }
}

impl fmt::Display for ID {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", Self::PREFIX)?;
        self.0.iter().try_for_each(|byte| write!(f, "{byte:02x}"))
    }
}