package eliofile

import (
	"fmt"
	"log"
	"os"
	"strings"
	"time"

	"gittea.marcokittel.de/elio/eliotools/tools"
)

type filedata struct {
	filename string
	dt       time.Time
}
type ElioHandleFunc func(filename string) bool

type ElioDateiFoo struct {
	process ElioHandleFunc
	dir     string
}

func NewElioDateiFoo(dir string, process ElioHandleFunc) *ElioDateiFoo {
	df := ElioDateiFoo{dir: dir,
		process: process,
	}
	return &df
}

func (f *ElioDateiFoo) ScanCsv() {
	files, err := os.ReadDir(f.dir)

	if err != nil {
		log.Fatal(err)
	}

	filemap := make(map[string]filedata)
	for _, file := range files {
		if !strings.Contains(file.Name(), "csv") {
			continue
		}
		tl, err := tools.ExtractDateAndConvertToDate(file.Name())
		if err != nil {
			continue
		}
		warehouse := tools.ExtractWarehouseAndType(file.Name())
		value, ok := filemap[warehouse]
		if !ok {
			filemap[warehouse] = filedata{filename: file.Name(), dt: tl}
		} else {
			if tl.Unix() >= value.dt.Unix() {
				err := os.Rename(value.filename, "no-import-"+value.filename+".old")
				if err != nil {
					fmt.Printf("Datei %s konnte nicht umbenannt werden!!!", value.filename)
				}
				filemap[warehouse] = filedata{filename: file.Name(), dt: tl}
			}
		}
	}
	for k, v := range filemap {
		fmt.Printf("%s %s", k, v)
	}
	// f.process(file.Name())
}