package store

import (
	"context"
	"errors"
	"time"
)

const (
	OperationalLeaseOrphanScan    = "mediamtx-orphan-scan"
	OperationalLeaseOrphanCleanup = "mediamtx-orphan-cleanup"

	OrphanOwnedStale = "owned_stale"
	OrphanUnowned    = "unowned"
)

var ErrOrphanScanNotFound = errors.New("orphan scan not found")

type MediaPathOwnership struct {
	PathName     string
	DeviceID     string
	CurrentClaim bool
}

type OrphanFinding struct {
	PathName       string
	Classification string
	DeviceID       string
	Deleted        bool
}

type OrphanScan struct {
	ID              string
	InstanceID      string
	ObservedCount   int
	OwnedStaleCount int
	UnownedCount    int
	SafetyAllowed   bool
	SafetyReason    string
	CompletedAt     time.Time
	ExpiresAt       time.Time
	Findings        []OrphanFinding
}

type OrphanRepository interface {
	AcquireOperationalLease(
		context.Context, string, string, string, time.Time, time.Duration,
	) (bool, error)
	ReleaseOperationalLease(context.Context, string, string, string, time.Time) error
	ListMediaPathOwnership(context.Context) ([]MediaPathOwnership, error)
	SaveOrphanScan(context.Context, OrphanScan, string, string) error
	GetOrphanScan(context.Context, string) (OrphanScan, error)
	RecordOrphanCleanup(
		context.Context, string, string, string, string, string, time.Time,
	) error
}

var _ OrphanRepository = (*Postgres)(nil)