package main

import (
	"context"
	"fmt"
	"os"
	"time"

	"allapp-go/internal/bootstrap/boots"
	"allapp-go/internal/config"
)

func main() {
	cfg, err := config.Load()
	if err != nil {
		exitErr("load config", err)
	}

	pool, err := boots.InitPgsql(cfg)
	if err != nil {
		exitErr("connect postgres", err)
	}
	defer pool.Close()

	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()

	rows, err := pool.Query(ctx, `
		select table_name
		from information_schema.tables
		where table_schema = 'public'
			and table_name like 'b_clothing_%'
		order by table_name
	`)
	if err != nil {
		exitErr("query tables", err)
	}
	defer rows.Close()

	count := 0
	for rows.Next() {
		var tableName string
		if err := rows.Scan(&tableName); err != nil {
			exitErr("scan table", err)
		}
		count++
		fmt.Println(tableName)
	}
	if err := rows.Err(); err != nil {
		exitErr("read rows", err)
	}

	fmt.Printf("total=%d\n", count)
}

func exitErr(step string, err error) {
	fmt.Fprintf(os.Stderr, "%s failed: %v\n", step, err)
	os.Exit(1)
}