import string
import sys
import os
import time
import asyncio
from Tomato import Tomato
from Cucumber import Cucumber
from Plant import Plant
from Trac import Trac

string.ascii_letters = 'oOpPx'
string.ascii_numbers = '01'
OKGREEN = '\033[92m'
OKBLUE = '\033[94m'
OKRED = '\033[91m'
ENDC = '\033[0m'


def initialize_field():
    field = []
    for i in range(11):
        row = []
        for j in range(7):
            if i == 0 or i == 10 or j == 0 \
            or j == 3 or j == 6:
                row.append(None)
            elif j < 3:
                row.append(Cucumber())
            else:
                row.append(Tomato())
        field.append(row)
    return field


def print_field(field, tractor):
    if sys.platform == "win32":
        os.system("cls")
    else:
        os.system("clear")
    print(tractor.get_position())
    sys.stdout.write(OKBLUE)
    sys.stdout.write("$")
    sys.stdout.write(" ")
    sys.stdout.write("\n")

    for x, row in enumerate(field):
        for y, i in enumerate(row):
            if not i:
                if tractor.get_position()[0] == x \
                   and tractor.get_position()[1] == y:
                    sys.stdout.write(OKBLUE)
                    sys.stdout.write(tractor.get_symbol())
                    sys.stdout.write(" ")
                else:
                    sys.stdout.write("  ")
            else:
                symbol = i.get_symbol()
                if symbol[1] == "green":
                    sys.stdout.write(OKGREEN)
                    sys.stdout.write(symbol[0])
                    sys.stdout.write(" ")
                else:
                    sys.stdout.write(OKRED)
                    sys.stdout.write(symbol[0])
                    sys.stdout.write(" ")

        sys.stdout.write("\n")

def update_state(field):
    for row in field:
        for i in row:
            if i:
                i.tick(1)

def try_move(field, tractor):
    x = tractor.get_position()[0]
    y = tractor.get_position()[1]
    rotation = tractor.get_rotation()
    if rotation == 'N':
        x -= 1
    elif rotation == 'S':
        x += 1
    elif rotation == 'W':
        y -= 1
    else:
        y += 1
    if x >= 0 and x < len(field) \
       and y >= 0 and y < len(field[0]) \
       and not field[x][y]:
        # print(str(x) + " " + str(y))
        return True
    return False


if __name__ == "__main__":

    field = initialize_field()
    tractor = Trac('N', (0,0))

    async def handle_echo(reader, writer):
        data = await reader.readline()
        message = data.decode().split()

        if message[0] == "rotate":
            tractor.set_rotation(message[1])
            writer.write("OK\n".encode())
        elif message[0] == "try":
            if try_move(field, tractor):
                writer.write("OK\n".encode())
            else:
                writer.write("FAIL\n".encode())
        else:
            tractor.move()
            writer.write(("OK\n").encode())

        print_field(field, tractor)
        # print(tractor.get_position().get_x())
        # print(tractor.get_position().get_y())
        # print(tractor.get_rotation())
        update_state(field)
        await writer.drain()

        writer.close()

    async def main():
        server = await asyncio.start_server(
            handle_echo, '127.0.0.1', 8888)

        addr = server.sockets[0].getsockname()

        async with server:
            await server.serve_forever()

    asyncio.run(main())