#!C:\Users\MeshCollider\AppData\Local\Programs\Python\Python35-32\python.exe -u

from PIL import Image, ImageDraw, ImageFont
import re, cgi
from urllib.request import urlopen
import io

def doStuff():
    print('Content-type: text/html\n')
    print('<title>Here is your code!</title>')
    print("<script src=\"script.js\"></script>")
    form = cgi.FieldStorage()
    if "image" not in form or "repeatText" not in form:
        print("<H1>Error</H1>")
        print("Please fill in the correct information.")
        return

    p = re.compile('[\w]+.(png|jpg|jpeg)')
    imageLoc = p.match(form["image"].value)

    image_file_path = "http://i.imgur.com/" + imageLoc.group()
    repeat_text = form["repeatText"].value

    alpha = 0
    if "transparent" in form:
        alpha = 1

    scale = 1
    if "scale" in form:
        try:
            scale = float(form["scale"].value)
        except Exception:
            print("fail")


    print("<p>image:", image_file_path)
    print("<p>repeatText:", repeat_text)
    print("<p>scale:", scale)
    print("<p>alpha:", alpha)

    repeat_text_array = list(repeat_text)

    def scale_image(image, new_width=100, new_height=0):
        (original_width, original_height) = image.size

        if new_height == 0:
            aspect_ratio = original_height/float(original_width)
            new_height = int(aspect_ratio * new_width)

        new_image = image.resize((new_width, new_height))
        return new_image

    im = None
    try:
        fd = urlopen(image_file_path)
        image_file = io.BytesIO(fd.read())
        im = Image.open(image_file).convert('RGBA')
        #im = Image.open(file).convert('RGBA')
    except Exception as e:
        #print("Unable to open image file {image_filepath}.".format(image_filepath=image_file_path))
        #print(e)
        print ("An error occured when opening the image. Please ensure you entered the correct image URL and try again")
        return

    drawer = ImageDraw.Draw(im)
    font = ImageFont.truetype('Verdana.ttf', 14)
    fontSize = drawer.textsize(repeat_text, font=font)
    fontOffset = font.getoffset(repeat_text)

    charsAcross = int((im.size[0]/(fontSize[0]+fontOffset[0]))*len(repeat_text)*scale)
    charsHigh = int((im.size[1]/(fontSize[1]+fontOffset[1]))*scale)

    image = scale_image(im, charsAcross, charsHigh)
    pixels_in_image = list(image.getdata())
    count = 0

    output = ""
    image_ascii = []
    previous = (0, 0, 0, 1)
    color = "#000000"
    transparent = False

    for pixel_value in pixels_in_image:
        r,g,b,a = pixel_value
        bbcode = ""

        if count % charsAcross == 0: # start of the line
            previous = ((r * a), (g * a), (b * a), a)
            begin = True
            end = False
        elif (abs(previous[0] - (r * a)) < 5) and (abs(previous[1] - (g * a)) < 5) and (abs(previous[2] - (b * a)) < 5) and (abs(previous[3] - a) < 5): # somewhere in the middle, check difference with previous char
            end = False # no difference so don't end or start again
            begin = False
        else: # too large difference, we end and begin a new one
            previous = ((r * a), (g * a), (b * a), a)
            end = True
            begin = True

        a = a/255

        r = hex(int(r * a)).split('x')[1].zfill(2)
        g = hex(int(g * a)).split('x')[1].zfill(2)
        b = hex(int(b * a)).split('x')[1].zfill(2)

        color = "#" + str(r) + str(g) + str(b)
        if a < 0.1 and alpha == 1:
            color = "transparent"
        character = repeat_text_array[count % len(repeat_text)]

        if end:
            bbcode += "[/color]"
        if begin:
            bbcode += "[color=" + color + "]"

        bbcode += character

        output += bbcode

        if count % charsAcross == (charsAcross-1):
            output += "[/color]"
            image_ascii.append(output)
            output = ""

        count += 1

    print("<br /><br />Here is your code: ")
    print("<input type=\"button\" onclick=\"selectText('selectable')\" value=\"Select All\" /><br />")
    print("<div id=\"selectable\" style=\"border:1px solid #ccc;font:16px/26px Georgia, Garamond, Serif;overflow:auto;\">")
    print("<br />".join(image_ascii))
    print("</div>")

try:
    doStuff()
except Exception:
    print("somthing went wrong")