//
// Copyright (c) 2020-2022 science+computing ag and other contributors
//
// This program and the accompanying materials are made
// available under the terms of the Eclipse Public License 2.0
// which is available at https://www.eclipse.org/legal/epl-2.0/
//
// SPDX-License-Identifier: EPL-2.0
//

use std::ops::Deref;

use pom::parser::Parser as PomParser;
use serde::Deserialize;
use serde::Serialize;

#[derive(
    parse_display::Display,
    Serialize,
    Deserialize,
    Clone,
    Debug,
    Hash,
    Eq,
    PartialEq,
    Ord,
    PartialOrd,
)]
#[serde(transparent)]
#[display("{0}")]
pub struct PackageName(String);

impl Deref for PackageName {
    type Target = String;
    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

impl AsRef<str> for PackageName {
    fn as_ref(&self) -> &str {
        &self.0
    }
}

impl From<String> for PackageName {
    fn from(s: String) -> Self {
        PackageName(s)
    }
}

impl PackageName {
    pub fn parser<'a>() -> PomParser<'a, u8, Self> {
        use crate::util::parser::*;
        (letters() + ((letters() | numbers()).repeat(0..)))
            .collect()
            .convert(|b| String::from_utf8(b.to_vec()).map(Self::from))
    }
}