#!/usr/bin/env python3
import argparse
from pathlib import Path
from PIL import Image

parser = argparse.ArgumentParser()
parser.add_argument("input")
parser.add_argument("output")

args = parser.parse_args()

input = Path(args.input)
output = Path(args.output)

if not input.exists():
	print("Input " + str(input.absolute()) + " not found.")
	raise SystemExit(1)

file_array = list()

for child in Path(input).iterdir():
	if child.is_file():
		file_array.append({"filename": child.name, "data": child.read_bytes()})

def generate_data():
	string_list = list()
	for index, data in enumerate(file_array):
		hexList = list()
		for byte in data["data"]:
			hexList.append(f"0x{byte:02x}")
		string_list.append(f"unsigned char data{index}[] = {{ {','.join(hexList)} }};")
	return '\n'.join(string_list)

def generate_hashmap_init():
	string_list = list()
	for index, data in enumerate(file_array):
		string_list.append(f"if (strcmp(filename, \"{data["filename"]}\") == 0) {{ *data = &data{index}; *size = sizeof(data{index}); return 1; }}")
	return f"""int get_file_pointer(const char* filename, void ** data, size_t * size) {{
{'\n'.join(string_list)}
return 0;
}}"""

code = f"""#include \"data.h\"
#include <string.h>
{generate_data()}
{generate_hashmap_init()}
"""

with open(output, 'w') as f:
	f.write(code)