ic-query 0.75.13

Internet Computer query library for CloudEngine, NNS, SNS, ICRC, system canisters, and public network metadata
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//! Module: sns::report::build::canisters
//!
//! Responsibility: build SNS Root canister inventory and health reports.
//! Does not own: command parsing, Root transport internals, or rendering.
//! Boundary: resolves SNS identity, calls one source capability, and assembles the report.

use crate::sns::report::{
    MAINNET_SNS_WASM_CANISTER_ID, MainnetSns, MainnetSnsCanisterInventory,
    SNS_CANISTER_REPORT_SCHEMA_VERSION, SnsCanisterCycleBalanceStatus, SnsCanisterReport,
    SnsCanisterSource, SnsHostError, SnsLookupRequest, SnsSourceRequest, live::LiveSnsSource,
    lookup::resolve_sns_lookup, source::canonicalize_mainnet_sns_canister_inventory,
};

/// Build a live SNS Root canister inventory and health report.
pub async fn build_sns_canister_report(
    request: &SnsLookupRequest,
) -> Result<SnsCanisterReport, SnsHostError> {
    build_sns_canister_report_with_source(request, &LiveSnsSource::default()).await
}

/// Build an SNS Root canister report through a custom source capability.
pub async fn build_sns_canister_report_with_source(
    request: &SnsLookupRequest,
    source: &dyn SnsCanisterSource,
) -> Result<SnsCanisterReport, SnsHostError> {
    let lookup = resolve_sns_lookup(request, source).await?;
    let mut inventory = source
        .fetch_sns_canisters(&lookup.fetch_request, &lookup.sns)
        .await?;
    canonicalize_mainnet_sns_canister_inventory(&mut inventory)?;
    Ok(sns_canister_report_from_parts(
        lookup.fetch_request,
        lookup.sns,
        inventory,
    ))
}

fn sns_canister_report_from_parts(
    fetch_request: SnsSourceRequest,
    sns: MainnetSns,
    inventory: MainnetSnsCanisterInventory,
) -> SnsCanisterReport {
    let health_status_count = inventory
        .canisters
        .iter()
        .filter(|canister| canister.status.is_some())
        .count();
    let reported_zero_cycles_count = inventory
        .canisters
        .iter()
        .filter(|canister| {
            canister.cycle_balance_status == SnsCanisterCycleBalanceStatus::ReportedZero
        })
        .count();
    let cycles_unavailable_count = inventory
        .canisters
        .iter()
        .filter(|canister| {
            canister.cycle_balance_status == SnsCanisterCycleBalanceStatus::Unavailable
        })
        .count();
    SnsCanisterReport {
        schema_version: SNS_CANISTER_REPORT_SCHEMA_VERSION,
        network: fetch_request.network,
        sns_wasm_canister_id: MAINNET_SNS_WASM_CANISTER_ID.to_string(),
        fetched_at: fetch_request.fetched_at,
        source_endpoint: fetch_request.endpoint,
        fetched_by: fetch_request.fetched_by,
        id: sns.id,
        name: sns.name,
        root_canister_id: sns.canisters.root_canister_id,
        inventory_method: inventory.inventory_method,
        health_method: inventory.health_method,
        health_call_type: inventory.health_call_type,
        health_update_canister_list: inventory.health_update_canister_list,
        point_in_time_guaranteed: inventory.point_in_time_guaranteed,
        canister_count: inventory.canisters.len(),
        health_status_count,
        reported_zero_cycles_count,
        cycles_unavailable_count,
        gap_count: inventory.gaps.len(),
        health_query_gap: inventory.health_query_gap,
        canisters: inventory.canisters,
        gaps: inventory.gaps,
    }
}