ic-query 0.87.0

Internet Computer query library for CloudEngine, NNS, SNS, ICRC, system canisters, and public network metadata
Documentation 
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use crate::ic_registry::{
    MainnetNodeOperatorList, MainnetRegistryFetchRequest, RegistryFetchError,
    relations::{
        RegistryRelationInventory, node_counts_from_relations, node_provider_principal_from_record,
    },
};
use crate::nns::node_operator::NnsNodeOperatorRow;
use ic_host_tools::registry::proto::NodeOperatorRecord;
use std::collections::BTreeMap;

pub(in crate::ic_registry) fn node_operator_list_from_inventory(
    request: &MainnetRegistryFetchRequest,
    inventory: RegistryRelationInventory,
    registry_version: u64,
) -> Result<MainnetNodeOperatorList, RegistryFetchError> {
    let node_counts = node_counts_from_relations(
        &inventory.node_principals,
        &inventory.node_operator_principals,
        &inventory.node_operator_records,
        |relation| Some(relation.node_operator_principal),
    )?;
    let node_operators = inventory
        .node_operator_records
        .into_iter()
        .map(|(principal, record)| node_operator_from_record(principal, record, &node_counts))
        .collect::<Result<Vec<_>, _>>()?;
    Ok(MainnetNodeOperatorList {
        provenance: request.inventory_provenance(registry_version),
        node_operators,
    })
}

fn node_operator_from_record(
    principal: String,
    record: NodeOperatorRecord,
    node_counts: &BTreeMap<String, u32>,
) -> Result<NnsNodeOperatorRow, RegistryFetchError> {
    let node_provider_principal = node_provider_principal_from_record(&principal, &record)?;
    Ok(NnsNodeOperatorRow {
        node_count: Some(node_counts.get(&principal).copied().unwrap_or(0)),
        node_operator_principal: principal,
        node_provider_principal,
        node_allowance: record.node_allowance,
        data_center_id: record.dc_id,
    })
}