// Command sync-plans upserts public Free→Enterprise ladder meters into Postgres.
// Usage (from apps/api):
//
//	go run ./cmd/sync-plans -postgres "$DATABASE_URL"
package main

import (
	"context"
	"flag"
	"fmt"
	"os"
	"strings"
	"time"

	"github.com/descrybe/descrybe-v2/apps/api/internal/billing"
	"github.com/jackc/pgx/v5/pgxpool"
)

func main() {
	pg := flag.String("postgres", os.Getenv("DATABASE_URL"), "Postgres DATABASE_URL")
	flag.Parse()
	if strings.TrimSpace(*pg) == "" {
		fmt.Fprintln(os.Stderr, "DATABASE_URL or -postgres required")
		os.Exit(1)
	}
	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()
	pool, err := pgxpool.New(ctx, *pg)
	if err != nil {
		fmt.Fprintf(os.Stderr, "connect: %v\n", err)
		os.Exit(1)
	}
	defer pool.Close()
	svc := &billing.Service{Pool: pool}
	if err := svc.EnsureDefaultPlans(ctx); err != nil {
		fmt.Fprintf(os.Stderr, "EnsureDefaultPlans: %v\n", err)
		os.Exit(1)
	}
	rows, err := pool.Query(ctx, `
		SELECT name, monthly_credits, COALESCE(max_products::text, 'unlimited')
		FROM plans
		WHERE lower(name) IN ('free','starter','plus','growth','business','scale','enterprise')
		ORDER BY CASE lower(name)
			WHEN 'free' THEN 0 WHEN 'starter' THEN 1 WHEN 'plus' THEN 2 WHEN 'growth' THEN 3
			WHEN 'business' THEN 4 WHEN 'scale' THEN 5 WHEN 'enterprise' THEN 6 ELSE 9 END`)
	if err != nil {
		fmt.Fprintf(os.Stderr, "list: %v\n", err)
		os.Exit(1)
	}
	defer rows.Close()
	fmt.Println("Public plans synced:")
	for rows.Next() {
		var name, maxP string
		var credits int
		if err := rows.Scan(&name, &credits, &maxP); err != nil {
			fmt.Fprintf(os.Stderr, "scan: %v\n", err)
			os.Exit(1)
		}
		fmt.Printf("  %-12s credits=%-8d max_products=%s\n", name, credits, maxP)
	}
	if err := rows.Err(); err != nil {
		fmt.Fprintf(os.Stderr, "rows: %v\n", err)
		os.Exit(1)
	}
}