import re
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("filename", help="the file from which to take data")
args = parser.parse_args()



seeds = []

maps = [] # list of map lists
with open(args.filename, "r") as f:
	seeds_re = re.compile("seeds: ((\d| )*)")
	new_map_re = re.compile("(.*?) map:")
	map_data_re = re.compile("\d+ \d+ \d+")

	current_map = []
	for l in f.readlines():
		if seeds_re.match(l):
			seeds = list(map(int, seeds_re.match(l).group(1).split()))

		if new_map_re.match(l):
			if current_map:
				maps.append(current_map)
				current_map = []

		if map_data_re.match(l):
			current_map.append(list(map(int, map_data_re.match(l).group(0).split())))

	if current_map: maps.append(current_map)

print("seeds: ", seeds)
print("maps are: ")
for x in maps: print(x)

def mapit(the_map, number):	
	for destination_start, origin_start, length in the_map:
		offset = number - origin_start

		if offset < length and offset >= 0:
			return destination_start + offset

	return number


# maps are lists of numbers, the output they map to, and the range in question
def transform(this_mapling, that_mapling):
	our_origin = {start: this_mapling[1], end: this_mapling[1]+this_mapling[2]}
	our_destination = {start: this_mapling[0], end: this_mapling[0] + this_mapling[2]}
	their_origin = {start: that_mapling[1], end: that_mapling[1]+this_mapling[2]}
	their_destination = {start: that_mapling[0], end: that_mapling[1] + that_mapling[2]}
	
	
		# our destination start is in their origin range