package slowtwitch

import (
	"database/sql"
	"fmt"
	"sort"
)

type SlowtwitchCategory struct {
	Id            int
	Name          string
	FullName      string
	FatherId      int
	CatDepth      int
	NumberOfLinks int
}

func GetCategories(db *sql.DB) []SlowtwitchCategory {
	rows, err := db.Query("select ID, Name, Full_Name, FatherID, CatDepth, Number_of_Links from glinks_Category where Number_of_Links > 0;")

	if err != nil {
		fmt.Println(err)
	}

	defer rows.Close()

	var categories []SlowtwitchCategory

	for rows.Next() {
		category := SlowtwitchCategory{}
		err := rows.Scan(&category.Id, &category.Name, &category.FullName, &category.FatherId, &category.CatDepth, &category.NumberOfLinks)

		if err != nil {
			fmt.Println(err)
		}

		categories = append(categories, category)
	}

	sort.Slice(categories, func(i, j int) bool {
		return categories[i].CatDepth < categories[j].CatDepth
	})

	return categories
}