osm2city-scripts/worldbuild-manager.py

#! /usr/bin/python3
# Copyright (C) 2018-2020 Merspieler, merspieler _at_ airmail.cc
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

import socket
import sys
import json
import os
import re

host = socket.gethostname()
port = 12345
verbose = False
sfile = "projects/worldbuild/status"

argc = len(sys.argv)
i = 1
while i < argc:
	if sys.argv[i] == "--port":
		i += 1
		port = int(sys.argv[i])
	elif sys.argv[i] == "--host":
		i += 1
		host = sys.argv[i]
	elif sys.argv[i] == "-v":
		verbose = True
	elif sys.argv[i] == "-f" or sys.argv[i] == "--file":
		i += 1
		sfile = sys.argv[i]
	elif sys.argv[i] == "-h" or sys.argv[i] == "--help":
		print("usage: worldbuild-manager.py [OPTIONS]")
		print("Handles job asignments and keeps track of the status")
		print("")
		print("OPTIONS")
		print("  -f, --file        Status file to use")
		print("  -v, --verbose     Verbose printouts")
		print("    , --host        hostname or interface to bind to")
		print("    , --port        Port to bind to")
		print("  -h, --help        Shows this help and exit")
		sys.exit(0)
	else:
		print("Unknown option " + sys.argv[i])
		sys.exit(1)
	i += 1

def norm(num, length):
	num = str(num)
	while len(num) < length:
		num = "0" + num
	return num

def save_state(state):
	try:
		with open(sfile, 'w') as f:
			json.dump(state, f, indent=4)
	except IOError:
		print("WARNING: Failed to write to file")

def set_state(state, name, status):
	if verbose:
		print(name + " set status to " + status)

	if status == "started" or status == "done" or status == "rebuild" or status == "skip" or status == "pending":
		if name == "n-pole" or name == "s-pole":
			if not name in state:
				state[name] = {}
			state[name]["status"] = status
		else:
			match = re.match(r"([ew])(\d{3})([ns])(\d{2})", name)
			if match == None:
				print("WARNING: Recived status " + status + " from invalid tile '" + name + "'")
			else:
				ew = match.group(1)
				ew_val = int(match.group(2))
				ns = match.group(3)
				ns_val = int(match.group(4))

				ew_val_major = int(ew_val / 10) * 10
				if ew == "w":
					if ew_val_major != ew_val:
						ew_val_major += 10

				ns_val_major = int(ns_val / 10) * 10
				if ns == "s":
					if ns_val_major != ns_val:
						ns_val_major += 10

				name_major = ew + norm(ew_val_major, 3) + ns + norm(ns_val_major, 2)
				if not name_major in state:
					state[name_major] = {}
				if not name in state[name_major]:
					state[name_major][name] = {}
				state[name_major][name]["status"] = status
				state[name_major]["done"] = 0
				state[name_major]["started"] = 0
				state[name_major]["rebuild"] = 0
				state[name_major]["skip"] = 0
				state[name_major]["pending"] = 0
				for tile in state[name_major]:
					# Filter status of name_major
					if tile != "done" and tile != "started" and tile != "pending" and tile != "status" and tile != "rebuild" and tile != "skip":
						state[name_major][state[name_major][tile]["status"]] += 1
				if state[name_major]["done"] == 100:
					state[name_major]["status"] = "done"
				elif state[name_major]["started"] > 0:
					state[name_major]["status"] = "started"
				elif state[name_major]["rebuild"] > 0:
					state[name_major]["status"] = "rebuild"
				elif state[name_major]["skip"] > 0:
					state[name_major]["status"] = "skip"
				else:
					state[name_major]["status"] = "pending"

if os.path.isfile(sfile):
	try:
		with open(sfile) as json_data:
			state = json.load(json_data)
	except ValueError:
		print("ERROR: Invalid status file")
		sys.exit(1)
else:
	state = {}

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.bind((host, port))

sock.listen(5)
print("Up and running...")
try:
	while True:
		try:
			c, addr = sock.accept()
			msg = c.recv(128)
			msg = msg.decode()

			match = re.match(r"(set) (n-pole|s-pole|[ew]\d{3}[ns]\d{2}) (done|started|rebuild|skip|pending)", msg)
			if match != None:
				action = "set"
				name = match.group(2)
				status = match.group(3)
			else:
				match = re.match(r"(get) (started|rebuild|skip|pending)", msg)
				if match != None:
					action = "get"
					get = match.group(2)
				else:
					match = re.match(r"(status) (n-pole|s-pole|[ew]\d{3}[ns]\d{2})", msg)
					if match != None:
						action = "status"
						name = match.group(2)
					else:
						print("WARNING: Recived invalid package")

			if action == "set":
					state = set_state(state, name, status)

					save_state(state)
				else:
					print("WARNING: Invalid status '" + status + "' recived from " + name)

			elif action == "get":
				tile = ""
				# Build poles first
				if not "n-pole" in state or ("n-pole" in state and state["n-pole"]["status"] == get):
					tile = "n-pole"
					state = set_state(state, "n-pole", "started")
				elif not "s-pole" in state or ("s-pole" in state and state["s-pole"]["status"] == get):
					tile = "s-pole"
					state = set_state(state, "n-pole", "started")
				else:
					ii = -8

					while ii < 8 and tile == "":
						i = ii * 10
						jj = -18
						while jj < 18 and tile == "":
							j = jj * 10
							if i >= 0:
								ns = "n"
							else:
								ns = "s"
							if j >= 0:
								ew = "e"
							else:
								ew = "w"

							name = ew + norm(abs(j), 3) + ns + norm(abs(i), 2)

							if not name in state or (name in state and state[name]["status"] != "done" and (state[name]["status"] != "skip" or get == "skip")):
								if ns == "s":
									ns_step = -1
								else:
									ns_step = 1
								if ew == "w":
									ew_step = -1
								else:
									ew_step = 1
								j = abs(j)
								for k in range(0, 10):
									if tile != "":
										break
									iii = abs(i)
									for l in range(0, 10):
										name_minor = ew + norm(j, 3) + ns + norm(iii, 2)
										if not name in state or (not name_minor in state[name] or (name_minor in state[name] and (state[name][name_minor]["status"] == get or state[name][name_minor]["status"] == "pending"))):
											tile = name_minor
											state = set_state(status, name, "started")
											break
										iii += ns_step
									j += ew_step
							jj += 1
						ii += 1

				if tile == "":
					tile = "None"

				if verbose:
					print("Asigning job on tile " + tile)

				c.send(tile.encode())
			elif action == "status":
				if name == "n-pole" or name == "s-pole":
					c.send(state[name]["status"].encode())
				else:
					match = re.match(r"([ew])(\d{3})([ns])(\d{2})", name)
					ew = match.group(1)
					ew_val = int(match.group(2))
					ns = match.group(3)
					ns_val = int(match.group(4))

					ew_val_major = int(ew_val / 10) * 10
					if ew == "w":
						if ew_val_major != ew_val:
							ew_val_major += 10

					ns_val_major = int(ns_val / 10) * 10
					if ns == "s":
						if ns_val_major != ns_val:
							ns_val_major += 10

					name_major = ew + norm(ew_val_major, 3) + ns + norm(ns_val_major, 2)
					if not name_major in state:
						c.send("pending".encode())
					elif not name in state[name_major]:
						c.send("pending".encode())
					else:
						c.send(state[name_major][name]["status"].encode())
			c.close()
		except IOError:
			print("WARNING: Recived invalid package")
			c.close()

except KeyboardInterrupt:
	save_state(state)
	sock.close()
	print("Exiting...")
	sys.exit(0)