package artifactvault

import "fmt"

func CoveragePASS(c Coverage) bool {
	if c.Required <= 0 {
		return false
	}
	return c.Verified == c.Required && c.Quarantine == 0
}

func CanPurge(legalHold bool, activeRefs int) error {
	if legalHold {
		return fmt.Errorf("artifactvault: legal hold")
	}
	if activeRefs > 0 {
		return fmt.Errorf("artifactvault: remaining references")
	}
	return nil
}

func PreflightDestroy(c Coverage, backupOK, corpusOK, vaultReady bool) error {
	if !vaultReady || !CoveragePASS(c) {
		return fmt.Errorf("artifactvault: coverage gate failed required=%d verified=%d quarantine=%d", c.Required, c.Verified, c.Quarantine)
	}
	if !backupOK || !corpusOK {
		return fmt.Errorf("artifactvault: complementary backup/corpus not PASS")
	}
	return nil
}