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use crate::unit::Unit;

use serde::{Deserialize, Serialize};

#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub struct Variable {
    pub symbol: SymbolRaw,
    pub unit: Option<Unit>,
    pub fields: Vec<Field>,
}

#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
pub struct Field {
    pub name: String,
    pub unit: Option<Unit>,
}

impl Variable {
    pub fn full_symbol(&self) -> SymbolRaw {
        let fields = self.fields.iter().map(|f| f.name.clone());
        self.symbol
            .iter()
            .map(|s| s.clone())
            .chain(fields)
            .collect()
    }
}

pub type SymbolRef<'s> = &'s [String];
pub type SymbolRaw = Vec<String>;