import os
import random
import time
import settings

loop = 1

while loop == 1:

    os.system("clear")

    fillscreen = settings.fillscreen

    while fillscreen > 0:

        fillscreen = fillscreen - 1

        try:

            charornum = random.randrange(1,3)

            if charornum == 1:
                numcharacter = random.randrange(1,51)
                if numcharacter == 1:
                    character = "A"
                if numcharacter == 2:
                    character = "B"
                if numcharacter == 3:
                    character = "C"
                if numcharacter == 4:
                    character = "D"
                if numcharacter == 5:
                    character = "E"
                if numcharacter == 6:
                    character = "F"
                if numcharacter == 7:
                    character = "G"
                if numcharacter == 8:
                    character = "H"
                if numcharacter == 9:
                    character = "I"
                if numcharacter == 10:
                    character = "J"
                if numcharacter == 11:
                    character = "K"
                if numcharacter == 12:
                    character = "L"
                if numcharacter == 13:
                    character = "M"
                if numcharacter == 14:
                    character = "N"
                if numcharacter == 15:
                    character = "O"
                if numcharacter == 16:
                    character = "P"
                if numcharacter == 17:
                    character = "Q"
                if numcharacter == 18:
                    character = "R"
                if numcharacter == 19:
                    character = "S"
                if numcharacter == 20:
                    character = "T"
                if numcharacter == 21:
                    character = "U"
                if numcharacter == 22:
                    character = "V"
                if numcharacter == 23:
                    character = "W"
                if numcharacter == 24:
                    character = "X"
                if numcharacter == 25:
                    character = "Y"
                if numcharacter == 26:
                    character = "Z"
                if numcharacter > 26 and numcharacter < 33:
                    character = " "
                if numcharacter == 33:
                    character = "("
                if numcharacter == 34:
                    character = ")"
                if numcharacter == 35:
                    character = "%"
                if numcharacter == 36:
                    character = "$"
                if numcharacter == 37:
                    character = "!"
                if numcharacter == 38:
                    character = "/"
                if numcharacter == 39:
                    character = "&"
                if numcharacter == 40:
                    character = "="
                if numcharacter == 41:
                    character = "#"
                if numcharacter == 42:
                    character = "*"
                if numcharacter == 43:
                    character = "+"
                if numcharacter == 44:
                    character = "-"
                if numcharacter == 45:
                    character = "<"
                if numcharacter == 46:
                    character = ">"
                if numcharacter == 47:
                    character = "§"
                if numcharacter == 48:
                    character = "?"
                if numcharacter == 49:
                    character = "["
                if numcharacter == 50:
                    character = "]"

                grorwh = random.randrange(1,3)

                if grorwh == 1:

                    print("\033[0;32m" + character + "\033[0m", end="", flush="true")
                
                if grorwh == 2:

                    print("\033[1;37m" + character + "\033[0m", end="", flush="true")

            if charornum == 2:

                grorwh = random.randrange(1,4)

                if grorwh == 1:

                    print("\033[0;32m" + str(random.randrange(0,10)) + "\033[0m", end="", flush="true")

                if grorwh == 2:

                    print("\033[1;32m" + str(random.randrange(0,10)) + "\033[0m", end="", flush="true")

                if grorwh == 3:

                    print("\033[1;37m" + str(random.randrange(0,10)) + "\033[0m", end="", flush="true")

            time.sleep(settings.interval)

        except KeyboardInterrupt:
            
            try:
            
                os.system("clear")
                
                

                waitingforcommand = 1

                while waitingforcommand == 1:
                    
                    command = input("Please enter a Command: ")
                    
                    if command == "help" or command == "changescreensize" or command == "ctioc":
                        
                        if command == "help":
                            
                            print("\nCommands:\n")
                            print("help             - Shows this here.")
                            print("changescreensize - Changes the number of characters to fill the terminal.")
                            print('ctioc            - "c" for "change" "t" for "the" "i" for "interval" "o" for "of"')
                            print('                   and "c" for "characters" = Change the interval of characters.\n')

                        if command == "changescreensize":
                            
                            new_size = input("Please enter a new number: ")
                            read_settings_for_size_save = open(os.path.realpath(__file__) + "/settings.py", "r")
                            old_settings_for_size_save = read_settings_for_size_save.read()
                            read_settings_for_size_save.close()
                            new_settings_for_size_save = old_settings_for_size_save.replace("fillscreen = " + str(settings.fillscreen), "fillscreen = " + new_size)
                            save_new_size = open(os.path.realpath(__file__) + "/settings.py", "w")
                            save_new_size.write(new_settings_for_size_save)
                            save_new_size.close()
                            print("Successfully saved.")
                            print("Please restart.")
                            loop = 0
                            fillscreen = 0
                            waitingforcommand = 0

                        if command == "ctioc":
                            new_interval = input("Please specify the new interval in seconds\n(If less than one second then with dot e.b. so: 0.001)\n(Warning: if the number after the point is too long\n e.b. so: 0.000001 the CPU is heavily loaded.): ")
                            read_settings_for_interval_save = open(os.path.dirname(os.path.realpath(__file__)) + "/settings.py", "r")
                            old_settings_for_interval_save = read_settings_for_interval_save.read()
                            read_settings_for_interval_save.close()
                            new_settings_for_interval_save = old_settings_for_interval_save.replace("interval = " + str(settings.interval), "interval = " + new_interval)
                            save_new_interval = open(os.path.dirname(os.path.realpath(__file__)) + "/settings.py", "w")
                            save_new_interval.write(new_settings_for_interval_save)
                            save_new_interval.close()
                            print("Successfully saved.")
                            print("Please restart.")
                            loop = 0
                            fillscreen = 0
                            waitingforcommand = 0

                    else:
                        waitingforcommand = 0


            except KeyboardInterrupt:
                
                os.system("clear")
                print("Program stopped.")
                loop = 0
                fillscreen = 0

    time.sleep(0.1)