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path: root/.config/awesome/quarrel/native/src/lenses/calculator.rs
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// use meval::eval_str;
use cpc::{
    eval,
    units::Unit,
};
use mlua::prelude::*;

use crate::lenses::entry::{
    entries_to_lua_table,
    Entry,
};

pub fn query(lua: &Lua, input: String) -> LuaResult<LuaTable> {
    let result = match eval(input.trim(), true, Unit::Celsius, false) {
        Ok(result) => {
            format!("{result}")
        }
        Err(_) => return lua.create_table(),
    };

    Ok(entries_to_lua_table(
        vec![Entry {
            message: result,
            exec: None,
            provider: "Calculator".to_string(),
        }],
        lua,
    ))
}