#!/usr/bin/env python3

import os, datetime, sys
from argparse import ArgumentParser
from glob import glob

from PIL import Image
from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import A0


# p = ArgumentParser("")
# p.add_argument("--output", default="poster.pdf")
# p.add_argument("--interpolation", default="cubic", help="nearest,cubic")
# p.add_argument("--labels", default="labels_public.txt")
# args = p.parse_args()


pagewidth, pageheight = A0

c = canvas.Canvas("reportlab_image_poster.pdf", pagesize=A0)
x, y = 0, 0
imagewidth = 200
aw = pagewidth - imagewidth
images = (glob ("images/*.JPG"))
dx = aw/(len(images)-1)
dy = 20

for image in images:
    print ("Adding an image to the PDF")
    print (image)
    im = Image.open(image)
    pxwidth, pxheight = im.size
    print ("Got the image, it's size is:", im.size)
    imageheight = imagewidth * (pxheight / pxwidth)
    c.drawInlineImage(image, x, y, imagewidth, None)
    print ("placing image {0} at {1}".format(image, (x,y)))
    x += dx
    y += dy

c.showPage()
c.save()
sys.exit(0)


#################
# GRID
# imsize = 96
# cols = int(A0[0] // imsize)
# rows = int(A0[1] // imsize)
# # calculate margins to center the grid on the page
# mx = (A0[0] - (cols*imsize)) / 2
# my = (A0[1] - (rows*imsize)) / 2
# print ("Grid size {0}x{1} (cols x rows)".format(cols, rows))
# print ("  (total size:", cols*imsize, rows*imsize, "margins:", mx, my, ")")
#################