// 一次性探针：在 rond 备份的 SQLite 上跑一条查询并打印结果（BLOB 打十六进制）。
package main

import (
	"fmt"
	"os"
	"strings"

	"rond-with-you/internal/rond"
)

func main() {
	if len(os.Args) < 3 {
		fmt.Println(`用法: sqlprobe <backup> "SELECT ..."`)
		os.Exit(2)
	}
	dir, err := os.MkdirTemp("", "sqlprobe")
	if err != nil {
		panic(err)
	}
	defer os.RemoveAll(dir)
	db, err := rond.Open(os.Args[1], dir)
	if err != nil {
		panic(err)
	}
	defer db.Close()

	rows, err := db.Query(os.Args[2])
	if err != nil {
		panic(err)
	}
	defer rows.Close()
	cols, _ := rows.Columns()
	fmt.Println(strings.Join(cols, " | "))
	for rows.Next() {
		vals := make([]any, len(cols))
		ptrs := make([]any, len(cols))
		for i := range vals {
			ptrs[i] = &vals[i]
		}
		if err := rows.Scan(ptrs...); err != nil {
			panic(err)
		}
		parts := make([]string, len(cols))
		for i, v := range vals {
			switch t := v.(type) {
			case nil:
				parts[i] = "-"
			case []byte:
				parts[i] = fmt.Sprintf("%x", t)
			default:
				parts[i] = fmt.Sprint(t)
			}
		}
		fmt.Println(strings.Join(parts, " | "))
	}
}