import time
import board
import microcontroller
import displayio
import busio
from analogio import AnalogIn
import neopixel
import adafruit_adt7410
from adafruit_bitmap_font import bitmap_font
from adafruit_display_text.label import Label
from adafruit_button import Button
import adafruit_touchscreen
from adafruit_pyportal import PyPortal

# ------------- Inputs and Outputs Setup ------------- #
try:  # attempt to init. the temperature sensor
    i2c_bus = busio.I2C(board.SCL, board.SDA)
    adt = adafruit_adt7410.ADT7410(i2c_bus, address=0x48)
    adt.high_resolution = True
except ValueError:
    # Did not find ADT7410. Probably running on Titano or Pynt
    adt = None

# init. the light sensor
light_sensor = AnalogIn(board.LIGHT)

pixel = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=1)
WHITE = 0xffffff
RED = 0xff0000
YELLOW = 0xffff00
GREEN = 0x00ff00
BLUE = 0x0000ff
PURPLE = 0xff00ff
BLACK = 0x000000

# ---------- Sound Effects ------------- #
soundDemo = '/sounds/sound.wav'
soundBeep = '/sounds/beep.wav'
soundTab = '/sounds/tab.wav'

# ------------- Other Helper Functions------------- #
# Helper for cycling through a number set of 1 to x.
def numberUP(num, max_val):
    num += 1
    if num <= max_val:
        return num
    else:
        return 1

# ------------- Screen Setup ------------- #
pyportal = PyPortal()
display = board.DISPLAY
display.rotation = 270

# Backlight function
# Value between 0 and 1 where 0 is OFF, 0.5 is 50% and 1 is 100% brightness.
def set_backlight(val):
    val = max(0, min(1.0, val))
    board.DISPLAY.auto_brightness = False
    board.DISPLAY.brightness = val

# Set the Backlight
set_backlight(0.3)

# Touchscreen setup
# ------Rotate 270:
screen_width = 240
screen_height = 320
ts = adafruit_touchscreen.Touchscreen(board.TOUCH_YD, board.TOUCH_YU,
                                      board.TOUCH_XR, board.TOUCH_XL,
                                      calibration=((5200, 59000),
                                                   (5800, 57000)),
                                      size=(screen_width, screen_height))


# ------------- Display Groups ------------- #
splash = displayio.Group(max_size=15)  # The Main Display Group
view1 = displayio.Group(max_size=15)  # Group for View 1 objects
view2 = displayio.Group(max_size=15)  # Group for View 2 objects
view3 = displayio.Group(max_size=15)  # Group for View 3 objects

def hideLayer(hide_target):
    try:
        splash.remove(hide_target)
    except ValueError:
        pass

def showLayer(show_target):
    try:
        time.sleep(0.1)
        splash.append(show_target)
    except ValueError:
        pass

# ------------- Setup for Images ------------- #

# Display an image until the loop starts
pyportal.set_background('/images/loading.bmp')


bg_group = displayio.Group(max_size=1)
splash.append(bg_group)


icon_group = displayio.Group(max_size=1)
icon_group.x = 180
icon_group.y = 120
icon_group.scale = 1
view2.append(icon_group)

# This will handel switching Images and Icons
def set_image(group, filename):
    """Set the image file for a given goup for display.
    This is most useful for Icons or image slideshows.
        :param group: The chosen group
        :param filename: The filename of the chosen image
    """
    print("Set image to ", filename)
    if group:
        group.pop()

    if not filename:
        return  # we're done, no icon desired

    image_file = open(filename, "rb")
    image = displayio.OnDiskBitmap(image_file)
    try:
        image_sprite = displayio.TileGrid(image, pixel_shader=displayio.ColorConverter())
    except TypeError:
        image_sprite = displayio.TileGrid(image, pixel_shader=displayio.ColorConverter(),
                                          position=(0, 0))
    group.append(image_sprite)

set_image(bg_group, "/images/BGimage.bmp")

# ---------- Text Boxes ------------- #
# Set the font and preload letters
font = bitmap_font.load_font("/fonts/Helvetica-Bold-16.bdf")
font.load_glyphs(b'abcdefghjiklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890- ()')

# Default Label styling:
TABS_X = 5
TABS_Y = 50

# Text Label Objects
feed1_label = Label(font, text="Text Wondow 1", color=0xE39300, max_glyphs=200)
feed1_label.x = TABS_X
feed1_label.y = TABS_Y
view1.append(feed1_label)

feed2_label = Label(font, text="Text Wondow 2", color=0xFFFFFF, max_glyphs=200)
feed2_label.x = TABS_X
feed2_label.y = TABS_Y
view2.append(feed2_label)

sensors_label = Label(font, text="Data View", color=0x03AD31, max_glyphs=200)
sensors_label.x = TABS_X
sensors_label.y = TABS_Y
view3.append(sensors_label)

sensor_data = Label(font, text="Data View", color=0x03AD31, max_glyphs=100)
sensor_data.x = TABS_X+15
sensor_data.y = 170
view3.append(sensor_data)


text_hight = Label(font, text="M", color=0x03AD31, max_glyphs=10)
# return a reformatted string with word wrapping using PyPortal.wrap_nicely
def text_box(target, top, string, max_chars):
    text = pyportal.wrap_nicely(string, max_chars)
    new_text = ""
    test = ""
    for w in text:
        new_text += '\n'+w
        test += 'M\n'
    text_hight.text = test  # Odd things happen without this
    glyph_box = text_hight.bounding_box
    target.text = ""  # Odd things happen without this
    target.y = int(glyph_box[3]/2)+top
    target.text = new_text

# ---------- Display Buttons ------------- #
# Default button styling:
BUTTON_HEIGHT = 40
BUTTON_WIDTH = 80

# We want three buttons across the top of the screen
TAPS_HEIGHT = 40
TAPS_WIDTH = int(screen_width/3)
TAPS_Y = 0

# We want two big buttons at the bottom of the screen
BIG_BUTTON_HEIGHT = int(screen_height/3.2)
BIG_BUTTON_WIDTH = int(screen_width/2)
BIG_BUTTON_Y = int(screen_height-BIG_BUTTON_HEIGHT)

# This group will make it easy for us to read a button press later.
buttons = []

# Main User Interface Buttons
button_view1 = Button(x=0, y=0,
                      width=TAPS_WIDTH, height=TAPS_HEIGHT,
                      label="View1", label_font=font, label_color=0xff7e00,
                      fill_color=0x5c5b5c, outline_color=0x767676,
                      selected_fill=0x1a1a1a, selected_outline=0x2e2e2e,
                      selected_label=0x525252)
buttons.append(button_view1)  # adding this button to the buttons group

button_view2 = Button(x=TAPS_WIDTH, y=0,
                      width=TAPS_WIDTH, height=TAPS_HEIGHT,
                      label="View2", label_font=font, label_color=0xff7e00,
                      fill_color=0x5c5b5c, outline_color=0x767676,
                      selected_fill=0x1a1a1a, selected_outline=0x2e2e2e,
                      selected_label=0x525252)
buttons.append(button_view2)  # adding this button to the buttons group

button_view3 = Button(x=TAPS_WIDTH*2, y=0,
                      width=TAPS_WIDTH, height=TAPS_HEIGHT,
                      label="View3", label_font=font, label_color=0xff7e00,
                      fill_color=0x5c5b5c, outline_color=0x767676,
                      selected_fill=0x1a1a1a, selected_outline=0x2e2e2e,
                      selected_label=0x525252)
buttons.append(button_view3)  # adding this button to the buttons group

button_switch = Button(x=0, y=BIG_BUTTON_Y,
                       width=BIG_BUTTON_WIDTH, height=BIG_BUTTON_HEIGHT,
                       label="Switch", label_font=font, label_color=0xff7e00,
                       fill_color=0x5c5b5c, outline_color=0x767676,
                       selected_fill=0x1a1a1a, selected_outline=0x2e2e2e,
                       selected_label=0x525252)
buttons.append(button_switch)  # adding this button to the buttons group

button_2 = Button(x=BIG_BUTTON_WIDTH, y=BIG_BUTTON_Y,
                  width=BIG_BUTTON_WIDTH, height=BIG_BUTTON_HEIGHT,
                  label="Button", label_font=font, label_color=0xff7e00,
                  fill_color=0x5c5b5c, outline_color=0x767676,
                  selected_fill=0x1a1a1a, selected_outline=0x2e2e2e,
                  selected_label=0x525252)
buttons.append(button_2)  # adding this button to the buttons group

# Add all of the main buttons to the spalsh Group
for b in buttons:
    splash.append(b.group)


# Make a button to change the icon image on view2
button_icon = Button(x=150, y=60,
                     width=BUTTON_WIDTH, height=BUTTON_HEIGHT,
                     label="Icon", label_font=font, label_color=0xffffff,
                     fill_color=0x8900ff, outline_color=0xbc55fd,
                     selected_fill=0x5a5a5a, selected_outline=0xff6600,
                     selected_label=0x525252, style=Button.ROUNDRECT)
buttons.append(button_icon)  # adding this button to the buttons group

# Add this button to view2 Group
view2.append(button_icon.group)

# Make a button to play a sound on view2
button_sound = Button(x=150, y=170,
                      width=BUTTON_WIDTH, height=BUTTON_HEIGHT,
                      label="Sound", label_font=font, label_color=0xffffff,
                      fill_color=0x8900ff, outline_color=0xbc55fd,
                      selected_fill=0x5a5a5a, selected_outline=0xff6600,
                      selected_label=0x525252, style=Button.ROUNDRECT)
buttons.append(button_sound)  # adding this button to the buttons group

# Add this button to view2 Group
view3.append(button_sound.group)

#pylint: disable=global-statement
def switch_view(what_view):
    global view_live
    if what_view == 1:
        hideLayer(view2)
        hideLayer(view3)
        button_view1.selected = False
        button_view2.selected = True
        button_view3.selected = True
        showLayer(view1)
        view_live = 1
        print("View1 On")
    elif what_view == 2:
        # global icon
        hideLayer(view1)
        hideLayer(view3)
        button_view1.selected = True
        button_view2.selected = False
        button_view3.selected = True
        showLayer(view2)
        view_live = 2
        print("View2 On")
    else:
        hideLayer(view1)
        hideLayer(view2)
        button_view1.selected = True
        button_view2.selected = True
        button_view3.selected = False
        showLayer(view3)
        view_live = 3
        print("View3 On")
#pylint: enable=global-statement

# Set veriables and startup states
button_view1.selected = False
button_view2.selected = True
button_view3.selected = True
showLayer(view1)
hideLayer(view2)
hideLayer(view3)

view_live = 1
icon = 1
icon_name = "Ruby"
button_mode = 1
switch_state = 0
button_switch.label = "OFF"
button_switch.selected = True

# Update out Labels with display text.
text_box(feed1_label, TABS_Y,
         "The text on this screen is wrapped so that all of it fits nicely into a \
text box that is ### x ###.", 30)
text_box(feed1_label, TABS_Y,
         'The text on this screen is wrapped so that all of it fits nicely into a \
text box that is {} x {}.'
         .format(feed1_label.bounding_box[2], feed1_label.bounding_box[3]*2), 30)

text_box(feed2_label, TABS_Y, 'Tap on the Icon button to meet a new friend.', 18)

text_box(sensors_label, TABS_Y,
         "This screen can display sensor readings and tap Sound to play a WAV file.", 28)

board.DISPLAY.show(splash)

# ------------- Code Loop ------------- #
while True:
    touch = ts.touch_point
    light = light_sensor.value

    if adt:  # Only if we have the temperature sensor
        tempC = adt.temperature
    else:  # No temperature sensor
        tempC = microcontroller.cpu.temperature

    tempF = tempC * 1.8 + 32
    sensor_data.text = 'Touch: {}\nLight: {}\n Temp: {:.0f}°F'.format(touch, light, tempF)

    # ------------- Handle Button Press Detection  ------------- #
    if touch:  # Only do this if the screen is touched
        # loop with buttons using enumerate() to number each button group as i
        for i, b in enumerate(buttons):
            if b.contains(touch):  # Test each button to see if it was pressed
                print('button%d pressed' % i)
                if i == 0 and view_live != 1:  # only if view1 is visable
                    pyportal.play_file(soundTab)
                    switch_view(1)
                    while ts.touch_point:
                        pass
                if i == 1 and view_live != 2:  # only if view2 is visable
                    pyportal.play_file(soundTab)
                    switch_view(2)
                    while ts.touch_point:
                        pass
                if i == 2 and view_live != 3:  # only if view3 is visable
                    pyportal.play_file(soundTab)
                    switch_view(3)
                    while ts.touch_point:
                        pass
                if i == 3:
                    pyportal.play_file(soundBeep)
                    # Toggle switch button type
                    if switch_state == 0:
                        switch_state = 1
                        b.label = "ON"
                        b.selected = False
                        pixel.fill(WHITE)
                        print("Swich ON")
                    else:
                        switch_state = 0
                        b.label = "OFF"
                        b.selected = True
                        pixel.fill(BLACK)
                        print("Swich OFF")
                    # for debounce
                    while ts.touch_point:
                        pass
                    print("Swich Pressed")
                if i == 4:
                    pyportal.play_file(soundBeep)
                    # Momentary button type
                    b.selected = True
                    print('Button Pressed')
                    button_mode = numberUP(button_mode, 5)
                    if button_mode == 1:
                        pixel.fill(RED)
                    elif button_mode == 2:
                        pixel.fill(YELLOW)
                    elif button_mode == 3:
                        pixel.fill(GREEN)
                    elif button_mode == 4:
                        pixel.fill(BLUE)
                    elif button_mode == 5:
                        pixel.fill(PURPLE)
                    switch_state = 1
                    button_switch.label = "ON"
                    button_switch.selected = False
                    # for debounce
                    while ts.touch_point:
                        pass
                    print("Button released")
                    b.selected = False
                if i == 5 and view_live == 2:  # only if view2 is visable
                    pyportal.play_file(soundBeep)
                    b.selected = True
                    while ts.touch_point:
                        pass
                    print("Icon Button Pressed")
                    icon = numberUP(icon, 3)
                    if icon == 1:
                        icon_name = "Ruby"
                    elif icon == 2:
                        icon_name = "Gus"
                    elif icon == 3:
                        icon_name = "Billie"
                    b.selected = False
                    text_box(feed2_label, TABS_Y,
                             "Every time you tap the Icon button the icon image will \
change. Say hi to {}!".format(icon_name), 18)
                    set_image(icon_group, "/images/"+icon_name+".bmp")
                if i == 6 and view_live == 3:  # only if view3 is visable
                    b.selected = True
                    while ts.touch_point:
                        pass
                    print("Sound Button Pressed")
                    pyportal.play_file(soundDemo)
                    b.selected = False