#!/usr/bin/env python
import googlemaps as gm
import sys, os

basedir = "gmfetch_DL"
dryrun = 1

for arg in sys.argv[1:]:
	exec arg

if lon[0] > lon[1]:
	lon = (lon[1], lon[0])

if lat[0] > lat[1]:
	lat = (lat[1], lat[0])

print lon, lat

zooms = range(-5, 18)
zooms.reverse()
for z in zooms:
	for d in ['sat', 'map', 'overlay', 'relief']:
		try:
			os.makedirs("%s/%s" % (basedir, d))
		except:
			pass

	img_num = (gm.get_image_number(lon[0], lat[0], z), gm.get_image_number(lon[1], lat[1], z))

	for y in range(img_num[1][1], img_num[0][1]+1):
		for x in range(img_num[0][0], img_num[1][0]+1):
			sel = gm.image_number_to_sel(x, y, z, ['a', 'b', 'c', 'd'])
			if not dryrun:
				img_sat = None
				img_map = None
				img_overlay = None
				img_relief = None

				img_sat_file = "%s/sat/%s" % ( basedir, sel)
				img_map_file = "%s/map/%s" % ( basedir, sel)
				img_overlay_file = "%s/overlay/%s" % ( basedir, sel)
				img_relief_file = "%s/relief/%s" % ( basedir, sel)

				if z >= gm.MIN_SATELLITE_ZOOM:
					try:
						pass
						#os.stat(img_sat_file)
					except OSError:
						print "sat %d %d %d" % (x,y,z),
						img_sat = gm.fetch_satellite_img(x, y, z)
						if img_sat:
							f = open("%s/sat/%s" % (basedir, sel), 'w')
							f.write(img_sat)
							f.close()
						else:
							print " failed",
						print

				if z >= gm.MIN_MAP_ZOOM:
					try:
						os.stat(img_map_file)
					except OSError:
						print "map %d %d %d" % (x,y,z),
						img_map = gm.fetch_map_img(x, y, z)
						if img_map:
							f = open("%s/map/%s" % (basedir, sel), 'w')
							f.write(img_map)
							f.close()
						else:
							print " failed",
						print

				if z >= gm.MIN_OVERLAY_ZOOM:
					try:
						os.stat(img_overlay_file)
					except OSError:
						print "overlay %d %d %d" % (x,y,z),
						img_overlay = gm.fetch_overlay_img(x, y, z)
						if img_overlay:
							f = open("%s/overlay/%s" % (basedir, sel), 'w')
							f.write(img_overlay)
							f.close()
						else:
							print " failed",
						print

				if z >= gm.MIN_RELIEF_ZOOM:
					try:
						os.stat(img_relief_file)
					except:
						print "relief %d %d %d" % (x,y,z),
						img_relief = gm.fetch_relief_img(x, y, z)
						if img_relief:
							f = open("%s/relief/%s" % (basedir, sel), 'w')
							f.write(img_relief)
							f.close()
						else:
							print " failed",
						print