package render

import (
	"context"
	"evobgp/internal/logging"
	"fmt"
	"log"
	"os"
	"strings"
	"time"

	"evobgp/internal/broker"
	"evobgp/internal/config"
	"evobgp/internal/store"
)

// Deps enables auto-publish of the latest rendered revision to all speakers in each tenant.
type Deps struct {
	Store store.Backend
}

// Run blocks until ctx is cancelled. With Store set, periodically publishes the head revision for each tenant.
func Run(ctx context.Context, deps *Deps) {
	cfg := config.Load()
	broker.LogConnect(ctx, cfg.BrokerURL)
	if deps == nil || deps.Store == nil {
		log.Fatalf("evobgp-render: missing store (pass render.Deps from BootstrapWorkers or evobgp-all)")
	}
	t := time.NewTicker(45 * time.Second)
	defer t.Stop()
	auto := strings.TrimSpace(os.Getenv("EVOBGP_RENDER_AUTOPUBLISH")) == "1"
	if auto {
		logging.Default().Info(fmt.Sprintf("evobgp-render: active (EVOBGP_RENDER_AUTOPUBLISH=1: publish head revision per tenant)"))
	} else {
		logging.Default().Info(fmt.Sprintf("evobgp-render: active (idle publish; set EVOBGP_RENDER_AUTOPUBLISH=1 to auto-publish head revision)"))
	}
	for {
		select {
		case <-ctx.Done():
			logging.Default().Info(fmt.Sprintf("evobgp-render: stopped"))
			return
		case <-t.C:
			if auto {
				PublishLatestTenantRevision(context.Background(), deps.Store)
			}
		}
	}
}