package mercuryUtil

import (
	"encoding/csv"
	"fmt"
	"os"
	"path"
)

func GetAllFilesInDir(pathlikeBase string) (*[]string, error) {
	listing, err := os.ReadDir(pathlikeBase)
	res := make([]string, 0, 300)
	if err != nil {
		return nil, err
	}
	for _, list := range listing {
		if list.IsDir() || path.Ext(list.Name()) != ".csv" {
			fmt.Printf("Skipping: %s\n", list.Name())
			continue
		} else {
			res = append(res, path.Join(pathlikeBase, list.Name()))
		}
	}
	return &res, nil
}

func CopyFile(inPath string, outpath string) error {
	b, err := os.ReadFile(inPath)
	if err != nil {
		return err
	}
	err = os.WriteFile(outpath, b, 0755)
	if err != nil {
		return err
	}
	return nil
}

func LoadCsv(pathlike string) (*[][]string, error) {
	f, err := os.OpenFile(pathlike, os.O_RDONLY, 0755)
	if err != nil {
		panic(err)
	}
	defer f.Close()

	reader := csv.NewReader(f)

	records, err := reader.ReadAll()

	if err != nil {
		return nil, err
	}
	return &records, nil
}

func StringArrEquals(a []string, b []string) bool {
	if len(a) != len(b) {
		return false
	}
	//should we do this? it screws up order independence
	//sort.Strings(a)
	//sort.Strings(b)

	for i := 0; i < len(a); i++ {
		vA := a[i]
		vB := b[i]
		if vA != vB {
			return false
		}
	}
	return true
}