backbone-inventory 0.17.2

//! Application service for Quant entities
//!
//! Generated by metaphor-schema. Do not edit manually.
//!
//! Type alias over `GenericCrudService` — all CRUD logic lives in backbone-core.
//! For custom behaviour, create `quant_service_custom.rs` (preserved on regen).

use backbone_core::GenericCrudService;

use crate::presentation::dto::{CreateQuantDto, UpdateQuantDto};
use crate::domain::entity::Quant;
use crate::infrastructure::persistence::QuantRepository;

/// Application service for Quant entities.
///
/// All 12 standard CRUD operations (list, create, get, update, patch,
/// soft_delete, restore, empty_trash, bulk_create, upsert, find_by_id,
/// list_deleted) are provided by `GenericCrudService`.
///
/// Custom extensions go in `quant_service_custom.rs`:
///
/// ```rust,ignore
/// pub struct QuantServiceCustom {
///     inner: Arc<QuantService>,
///     // add domain-specific dependencies here
/// }
/// ```
pub type QuantService = GenericCrudService<
    Quant,
    CreateQuantDto,
    UpdateQuantDto,
    QuantRepository,
>;

/// The rules the schema declares for Quant, checked against the row a create or update
/// would store. The generated build attaches it to [`QuantService`]. A refusing rule's
/// break answers 422; a rule in shadow is logged under `backbone::write_guard` and the
/// write goes ahead.
pub struct QuantRowRules;

#[async_trait::async_trait]
impl backbone_core::write_guard::WriteGuard<Quant> for QuantRowRules {
    async fn check(
        &self,
        ctx: &backbone_core::write_guard::WriteCtx<'_, Quant>,
    ) -> backbone_core::write_guard::GuardOutcome {
        use backbone_core::row_rule as r;
        use backbone_core::violation::Violation;
        use backbone_core::write_guard::{GuardOutcome, WriteKind};
        let (create, update) = (ctx.kind == WriteKind::Create, ctx.kind == WriteKind::Update);
        let Some(after) = ctx.after.filter(|_| create || update) else {
            return GuardOutcome::allow();
        };
        let Ok(row) = serde_json::to_value(after) else {
            return GuardOutcome::allow();
        };
        let row = &row;
        let old = ctx.before.and_then(|b| serde_json::to_value(b).ok());
        let shadow = Vec::new();
        let mut refuse = Vec::new();
        // `item_id_required` (@required on Quant.item_id)
        if (create || (update && r::changed(old.as_ref(), row, &["item_id"]))) && !r::holds(&r::and(r::is_not_null(r::field(row, "item_id")), r::not(r::is_empty(r::trim(r::field(row, "item_id")))))) {
            refuse.push(Violation::new("item_id", "required", "item_id is required"));
        }
        // `location_id_required` (@required on Quant.location_id)
        if (create || (update && r::changed(old.as_ref(), row, &["location_id"]))) && !r::holds(&r::and(r::is_not_null(r::field(row, "location_id")), r::not(r::is_empty(r::trim(r::field(row, "location_id")))))) {
            refuse.push(Violation::new("location_id", "required", "location_id is required"));
        }
        // `reserved_quantity_non_negative` (@non_negative on Quant.reserved_quantity)
        if (create || (update && r::changed(old.as_ref(), row, &["reserved_quantity"]))) && !r::holds(&r::ge(r::field(row, "reserved_quantity"), r::Val::Num(0.0_f64))) {
            refuse.push(Violation::new("reserved_quantity", "non_negative", "reserved_quantity must not be negative"));
        }
        // `available_is_read` (stock.hook.yaml:60)
        if (create || update) && !r::holds(&r::eq(r::field(row, "available_quantity"), r::sub(r::field(row, "quantity"), r::field(row, "reserved_quantity")))) {
            refuse.push(Violation::new("available_quantity", "available_mismatch", "breaks the rule `available_is_read`: available_quantity == quantity - reserved_quantity"));
        }
        GuardOutcome { refuse, shadow }
    }
}