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/*
    Hurry Curry! - a game about cooking
    Copyright 2024 metamuffin

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, version 3 of the License only.

    This program 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 Affero General Public License for more details.

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

*/

use anyhow::{anyhow, Result};
use hurrycurry_protocol::Message;
use std::{collections::HashMap, fmt::Debug, ops::Index, sync::LazyLock};

#[macro_export]
macro_rules! trm {
    ($id:literal $(, $typ:ident = $param:expr)*) => {
        hurrycurry_protocol::Message::Translation {
            id: $id.to_owned(),
            params: vec![$(crate::trm_param!($typ, $param)),*]
        }
    };
}

#[macro_export]
macro_rules! trm_param {
    (s, $x:expr) => {
        hurrycurry_protocol::Message::Text($x)
    };
    (i, $x:expr) => {
        hurrycurry_protocol::Message::Item($x)
    };
    (t, $x:expr) => {
        hurrycurry_protocol::Message::Tile($x)
    };
    (m, $x:expr) => {
        $x
    };
}

pub struct TrError {
    pub id: &'static str,
    pub params: Vec<Message>,
}
impl From<TrError> for Message {
    fn from(value: TrError) -> Self {
        Self::Translation {
            id: value.id.to_owned(),
            params: value.params,
        }
    }
}
impl Debug for TrError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{} {:?}", tr(self.id), self.params)
    }
}

#[macro_export]
macro_rules! tre {
    ($id:literal $(, $typ:ident = $param:expr)*) => {
        crate::message::TrError {
            id: $id,
            params: vec![$(crate::tre_param!($typ, $param)),*]
        }
    };
}

#[macro_export]
macro_rules! tre_param {
    (s, $x:expr) => {
        hurrycurry_protocol::Message::Text($x)
    };
    (i, $x:expr) => {
        hurrycurry_protocol::Message::Item($x)
    };
    (t, $x:expr) => {
        hurrycurry_protocol::Message::Tile($x)
    };
    (m, $x:expr) => {
        $x
    };
}

pub struct Strings(HashMap<String, String>);
impl Index<&'static str> for Strings {
    type Output = str;
    fn index(&self, index: &'static str) -> &Self::Output {
        self.0.get(index).map(|s| s.as_str()).unwrap_or(index)
    }
}

impl Strings {
    pub fn load() -> Result<Self> {
        Ok(Self(
            include_str!("../../locale/en.ini")
                .lines()
                .skip(1)
                .map(|l| {
                    let (k, v) = l.split_once("=").ok_or(anyhow!("'=' missing"))?;
                    Ok::<_, anyhow::Error>((
                        k.trim_end().to_owned(),
                        v.trim_start().replace("%n", "\n"),
                    ))
                })
                .try_collect()?,
        ))
    }
}

static TR: LazyLock<Strings> = LazyLock::new(|| Strings::load().unwrap());
pub fn tr<'a>(s: &'static str) -> &'a str {
    &TR[s]
}