backbone-bucket 0.4.6

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

use backbone_core::GenericCrudService;

use crate::presentation::dto::{CreateBucketDto, UpdateBucketDto};
use crate::domain::entity::Bucket;
use crate::infrastructure::persistence::BucketRepository;

/// Application service for Bucket 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 `bucket_service_custom.rs`:
///
/// ```rust,ignore
/// pub struct BucketServiceCustom {
///     inner: Arc<BucketService>,
///     // add domain-specific dependencies here
/// }
/// ```
pub type BucketService = GenericCrudService<
    Bucket,
    CreateBucketDto,
    UpdateBucketDto,
    BucketRepository,
>;

/// The row rules the schema declares for Bucket, checked against the row a create or
/// update would store. The generated build attaches it to [`BucketService`]. Every rule
/// runs in shadow: a break is logged under `backbone::write_guard` and the write goes ahead.
pub struct BucketRowRules;

#[async_trait::async_trait]
impl backbone_core::write_guard::WriteGuard<Bucket> for BucketRowRules {
    async fn check(
        &self,
        ctx: &backbone_core::write_guard::WriteCtx<'_, Bucket>,
    ) -> 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 mut shadow = Vec::new();
        // `status` belongs to a state machine: only its verbs move it
        if update && ctx.transition.is_none() && r::changed(old.as_ref(), row, &["status"]) {
            shadow.push(Violation::new("status", "state_field_verbs_only", "the state field moves only through its verbs"));
        }
        // `name_format` (bucket.hook.yaml:72)
        if (create || update) && !r::holds(&r::and(r::ge(r::length(r::field(row, "name")), r::Val::Num(1.0_f64)), r::le(r::length(r::field(row, "name")), r::Val::Num(255.0_f64)))) {
            shadow.push(Violation::new("name", "invalid_name_length", "Bucket name must be 1-255 characters"));
        }
        // `name_characters` (bucket.hook.yaml:78)
        if (create || update) && !r::holds(&r::matches(r::field(row, "name"), "^[a-zA-Z0-9_-]+$")) {
            shadow.push(Violation::new("name", "invalid_name_chars", "Bucket name must contain only alphanumeric characters, underscores, and hyphens"));
        }
        // `slug_format` (bucket.hook.yaml:84)
        if (create || update) && !r::holds(&r::and(r::ge(r::length(r::field(row, "slug")), r::Val::Num(1.0_f64)), r::le(r::length(r::field(row, "slug")), r::Val::Num(255.0_f64)))) {
            shadow.push(Violation::new("slug", "invalid_slug_length", "Bucket slug must be 1-255 characters"));
        }
        // `slug_characters` (bucket.hook.yaml:90)
        if (create) && !r::holds(&r::matches(r::field(row, "slug"), "^[a-z0-9-]+$")) {
            shadow.push(Violation::new("slug", "invalid_slug_chars", "Bucket slug must be lowercase with hyphens only"));
        }
        // `root_path_length` (bucket.hook.yaml:96)
        if (create) && !r::holds(&r::le(r::length(r::field(row, "root_path")), r::Val::Num(1024.0_f64))) {
            shadow.push(Violation::new("root_path", "path_too_long", "Root path too long"));
        }
        // `no_path_traversal` (bucket.hook.yaml:102)
        if (create) && !r::holds(&r::not(r::contains(r::field(row, "root_path"), r::text("..")))) {
            shadow.push(Violation::new("root_path", "path_traversal", "Path traversal not allowed in root path"));
        }
        // `cannot_modify_deleted` (bucket.hook.yaml:108)
        if (update) && !r::holds(&r::ne(r::field(row, "status"), r::text("deleted"))) {
            shadow.push(Violation::new("status", "bucket_deleted", "Cannot modify deleted buckets"));
        }
        GuardOutcome { refuse: Vec::new(), shadow }
    }
}