package inventory

import "context"

// Lookups of builds the delivery plans once held, which other code still reads.

// BuildOf is the id of the newest successful build of a module from a commit; empty when none is
// recorded (a manifest handed over by hand).
func (i *Inventory) BuildOf(ctx context.Context, module, commit string) (string, error) {
	c, err := i.theChain(ctx)
	if err != nil {
		return "", err
	}
	return i.chainBuildOf(ctx, c, module, commit)
}

// BuildFingerprints is, per commit, what the newest successful build of a module from it would put on a
// machine — its artifacts and its manifest, hashed — so a rebuild that changes nothing there is told
// from one that does (the bus's planned step, ADR 0236).
func (i *Inventory) BuildFingerprints(ctx context.Context, module string) (map[string]string, error) {
	c, err := i.theChain(ctx)
	if err != nil {
		return nil, err
	}
	return i.chainBuildFingerprints(ctx, c, module)
}