i.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import secrets
import urllib.request
from urllib.error import URLError


def throw_hexagram():
    url = (
        "https://www.random.org/integers/"
        "?num=6&min=0&max=15&col=6&base=10&format=plain&rnd=new"
    )
    try:
        get = urllib.request.urlopen(url).read().decode("utf-8").strip()
        throw = get.split("\t")
        throw = [int(i) for i in throw]
    except URLError:
        throw = [secrets.randbelow(16) for i in range(6)]

    prob = [6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9]
    hexagram = []
    for i in throw:
        x = prob[i]
        hexagram.append(x)
    return hexagram


def binary_hexagram(hexagram):
    binary_list = []
    for i in hexagram:
        if i in (7, 9):
            binary_list.append("1")
        else:
            binary_list.append("0")
    binary_hexagram = "".join(binary_list)
    return binary_hexagram


def lookup_hexagram_title(hexagram):
    titles = {
        "111111": "1. Ch'ien / The Creative ䷀",
        "000000": "2. K'un / The Receptive ䷁",
        "100010": "3. Chun / Difficulty at the Beginning ䷂",
        "010001": "4. Mêng / Youthful Folly ䷃",
        "111010": "5. Hsü / Waiting (Nourishment) ䷄",
        "010111": "6. Sung / Conflict ䷅",
        "010000": "7. Shih / The Army ䷆",
        "000010": "8. Pi / Holding Together [union] ䷇",
        "111011": "9. Hsiao Ch'u / The Taming Power of the Small ䷈",
        "110111": "10. Lü / Treading [conduct] ䷉",
        "111000": "11. T'ai / Peace ䷊",
        "000111": "12. P'i / Standstill [Stagnation] ䷋",
        "101111": "13. T'ung Jên / Fellowship with Men ䷌",
        "111101": "14. Ta Yu / Possession in Great Measure ䷍",
        "001000": "15. Ch'ien / Modesty ䷎",
        "000100": "16. Yü / Enthusiasm ䷏",
        "100110": "17. Sui / Following ䷐",
        "011001": "18. Ku / Work on what has been spoiled [ Decay ] ䷑",
        "110000": "19. Lin / Approach ䷒",
        "000011": "20. Kuan / Contemplation (View) ䷓",
        "100101": "21. Shih Ho / Biting Through ䷔",
        "101001": "22. Pi / Grace ䷕",
        "000001": "23. Po / Splitting Apart ䷖",
        "100000": "24. Fu / Return (The Turning Point) ䷗",
        "100111": "25. Wu Wang / Innocence (The Unexpected) ䷘",
        "111001": "26. Ta Ch'u / The Taming Power of the Great ䷙",
        "100001": "27. I / Corners of the Mouth (Providing Nourishment) ䷚",
        "011110": "28. Ta Kuo / Preponderance of the Great ䷛",
        "010010": "29. K'an / The Abysmal (Water) ䷜",
        "101101": "30. Li / The Clinging, Fire ䷝",
        "001110": "31. Hsien / Influence (Wooing) ䷞",
        "011100": "32. Hêng / Duration ䷟",
        "001111": "33. TUN / Retreat ䷠",
        "111100": "34. Ta Chuang / The Power of the Great ䷡",
        "000101": "35. Chin / Progress ䷢",
        "101000": "36. Ming I / Darkening of the light ䷣",
        "101011": "37. Chia Jên / The Family [The Clan] ䷤",
        "110101": "38. K'uei / Opposition ䷥",
        "001010": "39. Chien / Obstruction ䷦",
        "010100": "40. Hsieh / Deliverance ䷧",
        "110001": "41. Sun / Decrease ䷨",
        "100011": "42. I / Increase ䷩",
        "111110": "43. Kuai / Break-through (Resoluteness) ䷪",
        "011111": "44. Kou / Coming to Meet ䷫",
        "000110": "45. Ts'ui / Gathering Together [Massing] ䷬",
        "011000": "46. Shêng / Pushing Upward ䷭",
        "010110": "47. K'un / Oppression (Exhaustion) ䷮",
        "011010": "48. Ching / The Well ䷯",
        "101110": "49. Ko / Revolution (Molting) ䷰",
        "011101": "50. Ting / The Caldron ䷱",
        "100100": "51. Chên / The Arousing (Shock, Thunder) ䷲",
        "001001": "52. Kên / Keeping Still, Mountain ䷳",
        "001011": "53. Chien / Development (Gradual Progress) ䷴",
        "110100": "54. Kuei Mei / The Marrying Maiden ䷵",
        "101100": "55. Fêng / Abundance [Fullness] ䷶",
        "001101": "56. Lü / The Wanderer ䷷",
        "011011": "57. Sun / The Gentle (The Penetrating, Wind) ䷸",
        "110110": "58. Tui / The Joyous, Lake ䷹",
        "010011": "59. Huan / Dispersion [Dissolution] ䷺",
        "110010": "60. Chieh / Limitation ䷻",
        "110011": "61. Chung Fu / Inner Truth ䷼",
        "001100": "62. Hsiao Kuo / Preponderance of the Small ䷽",
        "101010": "63. Chi Chi / After Completion ䷾",
        "010101": "64. Wei Chi / Before Completion ䷿",
    }
    bingram = binary_hexagram(hexagram)
    title = titles[bingram]
    return title


def render_lines(hexagram):
    bottom_up = list(reversed(hexagram))
    map = {
        6: "         == x ==",
        7: "         =======",
        8: "         ==   ==",
        9: "         ===o===",
    }
    lines = [map[x] for x in bottom_up]
    render = "\n".join(lines)
    return render


def transform_changing_lines(hexagram):
    new_hexagram = []
    for i in hexagram:
        if i == 6:
            i = 7
        elif i == 9:
            i = 8
        new_hexagram.append(i)
    return new_hexagram


def main():
    hex_ = throw_hexagram()
    title = lookup_hexagram_title(hex_)
    lines = render_lines(hex_)
    hex_out = f"Hexagram: {title}\n{lines}"
    print(hex_out)
    if 6 in hex_ or 9 in hex_:
        next_hex = transform_changing_lines(hex_)
        next_title = lookup_hexagram_title(next_hex)
        next_lines = render_lines(next_hex)
        next_out = f"Changing to: {next_title}\n{next_lines}"
        print(next_out)


if __name__ == "__main__":
    main()