import io
import random
from datetime import datetime
from pathlib import Path

import pygame
from pygame import Surface
from pygame.time import Clock
from qrcode.main import QRCode

DEBUG: bool = False

WIDTH: int = 800
HEIGHT: int = 480
BORDER: int = 10

PHOTO_WIDTH = 2592
PHOTO_HEIGHT = 1944

SHOOTING_COUNT: int = 2
SHOOTING_INTERVAL: float = 0 if DEBUG else 1.75
COUNTDOWN_COUNT: int = 1 if DEBUG else 1

CHOICE_BORDER: int = 5

THUMB_WIDTH: int = (WIDTH - (SHOOTING_COUNT + 1) * BORDER) // SHOOTING_COUNT
THUMB_HEIGHT: int = int(THUMB_WIDTH / 1.6)

WHITE = (255, 255, 255)
BLACK = (0, 0, 0)

pygame.init()

screen: Surface = pygame.display.set_mode((WIDTH, HEIGHT))
SCREEN_RECT = screen.get_rect()

clock: Clock = pygame.time.Clock()


def qr_create(content: str):
    global FOTOBOX_QR_SURFACE
    qr = QRCode(border=1)
    qr.add_data(content)
    qr.make(fit=True)
    qr_img = qr.make_image()
    qr_img_buffer = io.BytesIO()
    qr_img.save(qr_img_buffer)
    qr_img_buffer.seek(0)
    return pygame.image.load(qr_img_buffer)


HTTPS = True
DOMAIN = "fotobox.online"
# HTTPS = False
# DOMAIN = "localhost:8080"

FONT_TITLE = pygame.font.SysFont(None, 70)
FOTOBOX_TITLE_SURFACE = FONT_TITLE.render("Berühren um Fotos zu schießen", True, (255, 255, 255))
FOTOBOX_TITLE_RECT = FOTOBOX_TITLE_SURFACE.get_rect(centerx=SCREEN_RECT.centerx, top=BORDER)

FONT_URL = pygame.font.SysFont(None, 60)

FONT_COUNTDOWN = pygame.font.SysFont(None, 500)
FOTOBOX_COUNTDOWN3_SURFACE = FONT_COUNTDOWN.render("3", True, (255, 255, 255))
FOTOBOX_COUNTDOWN3_RECT = FOTOBOX_COUNTDOWN3_SURFACE.get_rect(center=SCREEN_RECT.center)
FOTOBOX_COUNTDOWN2_SURFACE = FONT_COUNTDOWN.render("2", True, (255, 255, 255))
FOTOBOX_COUNTDOWN2_RECT = FOTOBOX_COUNTDOWN2_SURFACE.get_rect(center=SCREEN_RECT.center)
FOTOBOX_COUNTDOWN1_SURFACE = FONT_COUNTDOWN.render("1", True, (255, 255, 255))
FOTOBOX_COUNTDOWN1_RECT = FOTOBOX_COUNTDOWN1_SURFACE.get_rect(center=SCREEN_RECT.center)

FONT_LOADING = pygame.font.SysFont(None, 200)
LOADING_SURFACE = FONT_LOADING.render("Laden...", True, (255, 255, 255))
LOADING_RECT = LOADING_SURFACE.get_rect(center=SCREEN_RECT.center)

FONT_CHOOSE = pygame.font.SysFont(None, 100)
CHOOSE_SURFACE = FONT_CHOOSE.render("Bitte wählen", True, (255, 255, 255))
CHOOSE_RECT = CHOOSE_SURFACE.get_rect(centerx=SCREEN_RECT.centerx, top=BORDER)

FONT_CANCEL = pygame.font.SysFont(None, 60)
CANCEL_SURFACE = FONT_CANCEL.render("Abbruch", True, (255, 0, 0))
CANCEL_RECT = CANCEL_SURFACE.get_rect(left=BORDER, bottom=HEIGHT - BORDER)

FONT_SAVE = pygame.font.SysFont(None, 60)
SAVE_SURFACE = FONT_SAVE.render("Speichern", True, (0, 255, 0))
SAVE_RECT = SAVE_SURFACE.get_rect(right=WIDTH - BORDER, bottom=HEIGHT - BORDER)

FONT_PRINT = pygame.font.SysFont(None, 60)
PRINT_SURFACE = FONT_PRINT.render("Code drucken", True, (128, 128, 255))
PRINT_RECT = PRINT_SURFACE.get_rect(left=BORDER, bottom=HEIGHT - BORDER)

FONT_DONE = pygame.font.SysFont(None, 60)
DONE_SURFACE = FONT_DONE.render("Fertig", True, (0, 255, 0))
DONE_RECT = DONE_SURFACE.get_rect(right=WIDTH - BORDER, bottom=HEIGHT - BORDER)


def pil_image_to_surface(pil_image):
    mode = pil_image.mode
    size = pil_image.size
    data = pil_image.tobytes()

    return pygame.image.fromstring(data, size, mode).convert_alpha() if 'A' in mode else pygame.image.fromstring(data, size, mode).convert()


def read(path: str) -> str:
    with open(path, "r") as file:
        return file.read().strip()


def read_or_else(path: str, fallback: str) -> str:
    try:
        return read(path)
    except FileNotFoundError:
        return fallback


def write(path: str, value: str) -> None:
    Path(path).parent.mkdir(parents=True, exist_ok=True)
    with open(path, "w") as file:
        file.write(value)


def file_increase(path: str) -> int:
    last = int(read_or_else(path, "0"))
    current = last + 1
    write(path, str(current))
    return current


def iso(d: datetime):
    return d.strftime("%Y-%m-%dT%H:%M:%S%z")


def now():
    return datetime.now().astimezone()


def generate_code(groups: int):
    return '-'.join(''.join(random.choices('23456789abcdefghjkmnpqrstuvwxyz', k=4)) for _ in range(groups))