//! Aluminium (EU ESPR ~2030, CBAM-aligned).
use serde::{Deserialize, Serialize};
use crate::domain::sector::enums::ProductionRoute;
/// Aluminium sector data for EU ESPR carbon intensity reporting.
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(rename_all = "camelCase")]
pub struct AluminiumData {
/// 14-digit GTIN identifying the aluminium product.
pub gtin: String,
/// Alloy series designation, e.g. `"1xxx"`, `"3xxx"`, `"5xxx"`, `"6xxx"`.
pub alloy_grade: String,
/// Aluminium production route — determines carbon intensity calculation basis.
pub production_route: ProductionRoute,
/// Carbon intensity in kg CO₂e per tonne of aluminium produced.
pub co2e_per_tonne_kg: f64,
/// Recycled scrap content as a percentage of total input (0.0–100.0).
pub recycled_content_pct: f64,
/// ISO 3166-1 alpha-2 country of primary production.
pub country_of_production: String,
/// Annual production volume in tonnes (optional).
#[serde(skip_serializing_if = "Option::is_none")]
pub annual_production_tonnes: Option<f64>,
}