canic-core 0.110.54

Canic — a canister orchestration and management toolkit for the Internet Computer
Documentation 
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//! Module: workflow::placement::index::query
//!
//! Responsibility: expose read-only index registry query projections.
//! Does not own: index mutation, child lifecycle, or endpoint authorization.
//! Boundary: delegates storage reads and maps them into index DTO responses.

use crate::{
    cdk::types::Principal,
    dto::placement::index::{PlacementIndexRegistryResponse, PlacementIndexStatusResponse},
    ops::storage::placement::index::PlacementIndexRegistryOps,
};

///
/// PlacementIndexQuery
///
/// Read-only query facade for index registry state.
///

pub struct PlacementIndexQuery;

impl PlacementIndexQuery {
    #[must_use]
    pub fn lookup_key(pool: &str, key_value: &str) -> Option<Principal> {
        PlacementIndexRegistryOps::lookup_key(pool, key_value)
            .filter(|_| PlacementIndexRegistryOps::binding_is_current(pool, key_value))
    }

    #[must_use]
    pub fn lookup_entry(pool: &str, key_value: &str) -> Option<PlacementIndexStatusResponse> {
        PlacementIndexRegistryOps::lookup_entry(pool, key_value).filter(|entry| {
            !matches!(entry, PlacementIndexStatusResponse::Bound { .. })
                || PlacementIndexRegistryOps::binding_is_current(pool, key_value)
        })
    }

    #[must_use]
    pub fn registry() -> PlacementIndexRegistryResponse {
        let mut response = PlacementIndexRegistryOps::entries_response();
        response.0.retain(|entry| {
            !matches!(entry.status, PlacementIndexStatusResponse::Bound { .. })
                || PlacementIndexRegistryOps::binding_is_current(&entry.pool, &entry.key_value)
        });
        response
    }
}