#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# A GTK Python GO client

import sys
sys.path.append('lib/')

import os
import math

import pygame
from pygame.locals import *
import sgc
from sgc.locals import *

import goban


def load_png(name, alpha=None):
    """ Load image and return image object"""
    fullname = os.path.join('res', name)

    try:
        image = pygame.image.load(fullname)
        if image.get_alpha() is None:
            image = image.convert()
        else:
            image = image.convert_alpha()

        if alpha is not None:
            image.set_alpha(alpha)

    except pygame.error, message:
        print 'Cannot load image:', fullname
        raise SystemExit, message

    return image


def build_img_res():
    ret = {}

    triangle = load_png('go_t.png')
    
    ret['w'] = load_png('go_w.png')
    ret['wT'] = load_png('go_w.png')
    ret['wT'].blit(triangle, (0,0))
    ret['wH'] = load_png('go_w.png', 128)

    ret['b'] = load_png('go_b.png')
    ret['bT'] = load_png('go_b.png')
    ret['bT'].blit(triangle, (0,0))
    ret['bH'] = load_png('go_b.png', 128)

    circle = load_png('go_c.png')

    for d in ('u', 'd', 'l', 'r', 'm', 'dl', 'dr', 'ul', 'ur', 'h'):
        ret[d] = load_png('go_' + d + '.png')
        ret[d + 'C'] = load_png('go_' + d + '.png')
        ret[d + 'C'].blit(circle, (0,0))

    return ret


def magnitude(vector):
    x,y = vector
    return math.sqrt(x*x + y*y)


def main():
    # Basic screen init
    pygame.init()
#    screen = pygame.display.set_mode((1000, 800))
    screen = sgc.surface.Screen((1000,800))
    pygame.display.set_caption('pyGo')

    # SGC font color
    sgc.Font.col = (10,10,10)
    
    # Create the background object, make it blank
    # background = pygame.Surface(screen.get_size())
    # background = background.convert()
    # background.fill((250, 250, 250))

    # Build the dict of image objects
    img_res = build_img_res()

    board_size = 800
    board_inc = board_size / 19

    gb = goban.Goban()

    screen.fill((250, 250, 250))
    board = gb.draw_board(board_size, img_res)
    screen.blit(board, (0,0))
    text = gb.draw_info()
    screen.blit(text, (815, 25))
    
    pass_btn = sgc.widgets.Button(label="Pass", pos=(850,500))
    pass_btn.activate = gb.pass_move
    pass_btn.add()

    resign_btn = sgc.widgets.Button(label="Resign", pos=(850,600))
    resign_btn.activate = gb.resign
    resign_btn.add()

    quit_btn = sgc.widgets.Button(label="Quit", pos=(850,700))
    quit_btn.activate = sys.exit
    quit_btn.add()

    pygame.display.flip()

    # pygame.time.set_timer(USEREVENT, 1000)

    while True:
        event = pygame.event.wait()
        sgc.widgets.event(event)

        if event.type == QUIT:
            return

        # Hover a transparent stone over our
        # cursor position, assuming play is legal
        if event.type == MOUSEMOTION:
            x, y = event.pos
            row = y / board_inc
            col = x / board_inc

            if magnitude(event.rel) < 3:
                if x <= board_size:
                    gb.set_hover((row,col))
                else:
                    gb.clear_hover()
            elif gb.hover != gb._real_pos((row,col)):
                gb.clear_hover()

        # Place a stone on left-click
        if event.type == MOUSEBUTTONDOWN:
            x, y = event.pos
            row = y / board_inc
            col = x / board_inc

            if x <= board_size:
                if event.button == 1:
                    gb.play_move((row, col))

        # if event.type == USEREVENT:
        #     gb.elapsed_time += 1


        # Cleanup removed windows
        # for widget in dialogs:
        #     if not widget.active():
        #         dialogs.remove(widget)
                
        board = gb.draw_board(board_size, img_res)
        screen.blit(board, (0,0))
    
        text = gb.draw_info()
        screen.blit(text, (815, 25))

        sgc.widgets.update(0)
        pygame.display.flip()

    

if __name__ == '__main__': main()