package main

import (
	"bytes"
	"errors"
	"fmt"

	helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
)

var maxX, maxY int
var vault map[helpers.Coordinate]byte
var keys map[helpers.Coordinate]byte
var doors map[helpers.Coordinate]byte

func main() {
	file := "input"
	if helpers.GetArgNumber(1) != "" {
		file = helpers.GetArgNumber(1)
	}
	inp := helpers.FileToBytes(file)
	wrk := bytes.Split(inp, []byte{'\n'})
	maxY = len(wrk)
	vault = make(map[helpers.Coordinate]byte)
	keys = make(map[helpers.Coordinate]byte)
	doors = make(map[helpers.Coordinate]byte)
	maxX = len(wrk[0])
	for y, yv := range wrk {
		for x, xv := range yv {
			vault[*helpers.NewCoordinate(x, y)] = xv
			if isKey(xv) {
				keys[*helpers.NewCoordinate(x, y)] = xv
			} else if isDoor(xv) {
				doors[*helpers.NewCoordinate(x, y)] = xv
			}
		}
	}

	PrintVault()
}

func isDoor(b byte) bool {
	return b >= 'A' && b <= 'Z'
}
func isKey(b byte) bool {
	return b >= 'a' && b <= 'z'
}

func keyToDoor(b byte) byte {
	return (b - 'a') + 'A'
}

func doorToKey(b byte) byte {
	return (b - 'A') + 'a'
}

func findKey(b byte) (helpers.Coordinate, error) {
	var r helpers.Coordinate
	if !isDoor(b) {
		return r, errors.New("Invalid Door")
	}

	return r, nil
}

func PrintVault() {
	for y := 0; y < maxY; y++ {
		for x := 0; x < maxX; x++ {
			fmt.Print(string(vault[*helpers.NewCoordinate(x, y)]))
		}
		fmt.Println()
	}
}

func c(x, y int) string {
	return fmt.Sprintf("[%d, %d]", x, y)
}