package main

import (
	"fmt"
	"forever-files/db"
	"forever-files/fileUtilities"
	"forever-files/partitioner"
	"forever-files/source"
	"forever-files/types"
)

func main() {

	fmt.Printf("%v\n", types.AppName)
	baseDir := "C:\\Users\\gomas\\Nextcloud"

	store, err := db.NewDB(types.AppName)
	if err != nil {
		panic(fmt.Errorf("error creating db: %w", err))
	}
	defer store.Close()

	err = store.Migrate()
	if err != nil {
		panic(fmt.Errorf("error migrating db: %w", err))
	}

	source.GatherInfo(baseDir, store)
	oneDVDSize := int64(4600000000)
	//oneBRSize := int64(25000000000) // size of a small Blu-ray disc
	partitions, err := partitioner.CalculatePartitions(store, oneDVDSize)
	if err != nil {
		panic(fmt.Errorf("error calculating partitions: %w", err))
	}

	// zip up the files in each partition
	partitionCount := len(partitions)
	for i, partition := range partitions {
		fileName := fmt.Sprintf("partition%0*d", getZeroPadAmount(partitionCount), i)
		fmt.Printf("Creating zip file: %v\n", fileName)
		err = fileUtilities.CreateZip(fileName, "C:\\tmp\\", baseDir, partition)
		if err != nil {
			panic(fmt.Errorf("error creating zip: %w", err))
		}
	}

	// create parities for each zip file pair, figure out how to store the length of each zip file with the parity

	// create a folder for each DVD add the scripts and zip files

	// copy the zip files to the DVD
}

func getZeroPadAmount(n int) int {
	str := fmt.Sprintf("%d", n)
	return len(str)
}