canic-host 0.110.38

Host-side App build and desired-state Fleet reconciliation library for Canic workspaces
Documentation 
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//! Module: fleet_ensure::workflow::reinstall::terminal
//!
//! Responsibility: assess completed source conservation before a separately reviewed preparation.
//! Does not own: source decoding, archive mutation, record conversion or remote effects.
//! Boundary: read-only source observations precede the existing journaled reinstall owner.

use super::*;
use crate::fleet_ensure::view::terminal_source::TerminalSourceView;

pub(super) fn plan_preparation<P: EnsurePlatform>(
    root: &Path,
    paths: &EnsurePaths,
    desired: &DesiredFleet,
    digest: &str,
    time: u64,
    state: &FleetEnsureStateRecord,
    platform: &mut P,
) -> Result<FleetEnsureReport, EnsureWorkflowError<P::Error>> {
    let source = capture::terminal::read(paths, &desired.environment, &desired.fleet)?;
    let authority = capture::capture_source(root, source.reviewed_desired.desired())?;
    let debit = match platform.retirement_debit_block() {
        Some(block) => Some(
            platform
                .observe_retirement_debit(block)
                .map_err(EnsureWorkflowError::Platform)?
                .ok_or(EnsureWorkflowError::ReinstallConflict)?,
        ),
        None => None,
    };
    let conservation = verify_with_debit(
        desired,
        &authority,
        &source,
        state,
        debit.as_ref(),
        platform,
    )?;
    let authority = capture::terminal::capture(root, &source, conservation)?;
    let authority = match debit {
        Some(debit) => capture::terminal::capture_external_debit(authority, debit)?,
        None => authority,
    };
    let operation = canic_core::cdk::utils::hash::sha256_hex(
        format!(
            "canic-fleet-reinstall:{digest}:{}:{time}",
            source.documents.operation_id
        )
        .as_bytes(),
    );
    let plan = preparation(
        root,
        desired,
        digest,
        &source.documents.operation_id,
        &authority,
        &operation,
        time,
        platform,
        state,
    )?;
    capture::adoption::stage(paths, &plan)?;
    Ok(report(plan))
}

pub(super) fn verify<P: EnsurePlatform>(
    target: &DesiredFleet,
    authority: &FleetReinstallSourceRecord,
    source: &TerminalSourceView,
    state: &FleetEnsureStateRecord,
    platform: &mut P,
) -> Result<crate::fleet_ensure::model::ActualCycleConservation, EnsureWorkflowError<P::Error>> {
    let debit = match authority
        .terminal_retirement
        .as_ref()
        .map(|r| &r.conservation)
    {
        Some(crate::fleet_ensure::model::FleetRetirementConservationRecord::ExternalDebit(
            record,
        )) => {
            let observed = platform
                .observe_retirement_debit(record.external_debit.block_index)
                .map_err(EnsureWorkflowError::Platform)?;
            if observed.as_ref() != Some(&record.external_debit) {
                return Err(EnsureWorkflowError::DriftedBeforeApply);
            }
            observed
        }
        _ => None,
    };
    verify_with_debit(target, authority, source, state, debit.as_ref(), platform)
}

fn verify_with_debit<P: EnsurePlatform>(
    target: &DesiredFleet,
    authority: &FleetReinstallSourceRecord,
    source: &TerminalSourceView,
    state: &FleetEnsureStateRecord,
    debit: Option<&crate::fleet_ensure::model::RetirementWithdrawalRecord>,
    platform: &mut P,
) -> Result<crate::fleet_ensure::model::ActualCycleConservation, EnsureWorkflowError<P::Error>> {
    let desired = source.reviewed_desired.desired();
    if desired.operator != target.operator || desired.cycles_ledger != target.cycles_ledger {
        return Err(EnsureWorkflowError::ReinstallConflict);
    }
    let inventory = observe_source(authority, target, platform, |platform| {
        platform.terminal_inventory(&source.documents.operation_id, state)
    })?;
    if inventory.active_registry != state.active_registry
        || !policy::terminal::inventory_matches(state, &inventory.entries)
    {
        return Err(EnsureWorkflowError::ConvergenceDrift);
    }
    let cycles = inventory.controlled_cycles_by_principal;
    let mut observation = observe_source(authority, target, platform, |platform| {
        platform.observe(&source.documents.operation_id, state)
    })?;
    attach_terminal_cycles(&mut observation, cycles)?;
    let controlled = controlled_cycles(&observation)?;
    let conservation = match debit {
        Some(debit) => policy::terminal::external_debit_conservation(
            source,
            &observation,
            controlled,
            state,
            debit,
        ),
        None => policy::terminal::conservation(source, &observation, controlled),
    };
    conservation.ok_or_else(|| EnsureWorkflowError::Conservation(
            "completed-source receipts and fresh controlled cycles do not reconcile within the original bounds; preserve source evidence".into()))
}