package httpapi

import (
	"net/http"
	"strings"

	"github.com/descrybe/descrybe-v2/apps/api/internal/billing"
)

// POST /api/admin/settings/stripe/sync-credit-packs
// Creates/updates Stripe Products + one-time Prices for DefaultCreditPacks using
// the configured secret key (sk_test_* or sk_live_*), then writes Price IDs into
// platform settings (stripe.price.pack.*).
func (s *Server) handleAdminSyncStripeCreditPacks(w http.ResponseWriter, r *http.Request) {
	if s.PlatformSettings == nil {
		Error(w, http.StatusServiceUnavailable, "platform settings unavailable")
		return
	}
	if s.Stripe == nil {
		Error(w, http.StatusServiceUnavailable, "stripe unavailable")
		return
	}

	cfg, err := s.PlatformSettings.ResolveStripe(r.Context(), s.Stripe.Cfg)
	if err != nil {
		Error(w, http.StatusInternalServerError, "failed to resolve stripe settings")
		return
	}
	secret := strings.TrimSpace(cfg.SecretKey)
	if secret == "" || cfg.ForceMock {
		Error(w, http.StatusBadRequest, "configure a Stripe secret key (test or live) and turn mock off before syncing")
		return
	}

	mode := "live"
	if strings.HasPrefix(secret, "sk_test_") {
		mode = "test"
	} else if !strings.HasPrefix(secret, "sk_live_") {
		mode = "unknown"
	}

	svc := &billing.StripeService{
		Pool: s.Stripe.Pool,
		Cfg:  billing.StripeConfig{SecretKey: secret},
	}
	results, err := svc.SyncCreditPackProducts(r.Context())
	if err != nil {
		ClientOrLog(w, http.StatusBadRequest, "could not sync credit packs to Stripe", err, billing.ClientError)
		return
	}

	written := make([]map[string]any, 0, len(results))
	for _, row := range results {
		key := billing.CreditPackSettingsKey(row.PackID)
		if err := s.PlatformSettings.SetKV(r.Context(), key, row.PriceID); err != nil {
			ClientOrLog(w, http.StatusBadRequest, "synced Stripe but failed to save price id", err, billing.ClientError)
			return
		}
		written = append(written, map[string]any{
			"pack_id":     row.PackID,
			"product_id":  row.ProductID,
			"price_id":    row.PriceID,
			"credits":     row.Credits,
			"price_usd":   row.PriceUSD,
			"created":     row.Created,
			"settings_key": key,
		})
	}

	JSON(w, http.StatusOK, map[string]any{
		"mode":    mode,
		"packs":   written,
		"message": "Credit pack Products/Prices synced; Price IDs saved to settings.",
	})
}