main.go

package main

import (
	"aoc2020/day1"
	"aoc2020/day2"
	"aoc2020/day3"
	"aoc2020/day4"
	"aoc2020/day5"
	"aoc2020/day6"
	"aoc2020/pkg/utils"
	"io"
	"log"
	"os"
	"time"
)

func main() {
	defer utils.TimeTrack(time.Now(), "Total execution")
	day := "4"
	if len(os.Args) > 1 {
		day = string(os.Args[1])
	}
	inputFileLocation := "./day" + day + "/input.txt"
	if len(os.Args) > 2 {
		inputFileLocation = string(os.Args[1])
	}

	log.Println("Using input file: " + inputFileLocation)
	file, err := os.Open(inputFileLocation)
	if err != nil {
		log.Println("I can't solve every problem... not yet anyway")
		log.Fatal(err)
	}

	FindSolution(day, file)

	cErr := file.Close()
	if cErr != nil {
		log.Fatal(cErr)
	}
}

func FindSolution(day string, input io.Reader) {
	log.Println("Day " + day)
	switch day {
	case "1":
		day1.ExecuteSolution(input)
	case "2":
		day2.ExecuteSolution(input)
	case "3":
		day3.ExecuteSolution(input)
	case "4":
		day4.ExecuteSolution(input)
	case "5":
		day5.ExecuteSolution(input)
	case "6":
		day6.ExecuteSolution(input)
	default:
		log.Fatal("I can't solve every problem... not yet anyway")
	}
}