use crate::{Ingredient, Workstep};
use std::collections::BTreeSet;

#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
pub struct Thread {
    pub name: String,
    pub instructions: Vec<Instruction>,
    pub inputs: BTreeSet<Measure>,
    pub outputs: BTreeSet<Measure>,
}

/// An ingredient with precise attached measurements
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
pub struct Measure {
    /// Base ingredient from the schema
    pub ingredient: Ingredient,
    /// Numerical amount
    pub amount: usize,
    /// Scale offset
    pub scale: u64,
}

/// Differentiator between raw schema ingredient or work result
pub enum IngredientLike {
    /// An ingredient backed by the recipe schema
    Raw(Ingredient),
    /// An ingredient produced by a subset of the recipe
    Combine(Combine),
}

/// A specific variation of a `Workstep` which acts on Measures
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
pub struct Instruction {}

/// The result of an instruction, which is not a base ingredient
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
pub struct Combine {
    inputs: BTreeSet<IngredientLike>,
    name: String,
    slug: String,
}