package console

import (
	"context"
	"time"

	"github.com/carlosframework/platform/internal/boxchoice"
	"github.com/carlosframework/platform/internal/hostactors"
	"github.com/carlosframework/platform/internal/hostops"
)

// executorChooser is create's executor choice (region HA §5.2, L8) over
// console's live edges read and the claim listing's loads.
// ConfigureClaimRuntime binds it as the create door's
// hostops.ProductionAuthority.Executors (stage B Task 10). With
// Config.RegionHA off it is nil, and the create path is today's (spec §8
// step 2: dormant).
func (s *Server) executorChooser(d hostactors.Directory) *hostops.ExecutorChooser {
	if !s.cfg.RegionHA {
		return nil
	}
	return &hostops.ExecutorChooser{Directory: d,
		Edges: func(ctx context.Context) (boxchoice.Snapshot, error) {
			snap, err := s.liveEdges(ctx)
			if err != nil {
				return boxchoice.Snapshot{}, err
			}
			return boxSnapshot(snap), nil
		},
		Loads: func(ctx context.Context) (map[string]boxchoice.Load, error) {
			return hostops.ClaimLoads(ctx, s.cfg.Releases)
		},
		// HomeName is the create door's home binding, the one
		// ProductionAuthority.HomeRegion holds (dbClaimHomeRegion).
		SecretsKeyFP: s.expectedSecretsFP(), HomeName: s.cfg.dbClaimHomeRegion(), Now: time.Now}
}