from tkinter import *
from tkinter import filedialog
from tkinter.ttk import Notebook

from PIL import Image, ImageTk
import os

from GCodeRenderer import Renderer
from Svg2GcodeConverter import Svg2GcodeConverter
from ImageConverter import ImageConverter
from Simulator import Simulator



class Settings:

    def __init__(self):

        # ============ HARDCODED VALUES ===========

        # Canvas size
        self.canvas_x = 700
        self.canvas_y = 700

        # The position of the pulley centers in relation to the top left and right of the canvas
        self.left_pulley_x_offset  = -40
        self.right_pulley_x_offset =  40
        self.pulley_y_droop = 60

        # Diameter of the inner portion of the pulley in millimeters
        self.pulley_diameter = 45

        # Feed rates
        self.speed = 1000

        # Whether we render lift markers
        self.lift_markers = False
        self.lift_counter = 0
        # ============ CALCULATED VALUES ===========

        self.distance_between_centers = abs(self.left_pulley_x_offset) + self.canvas_x + self.right_pulley_x_offset


# Main GUI class and program entry point
class Tracer(Tk):

    def update_highpass_value(self, value):
        self.highpass_filter = value

    def update_blur_value(self, value):
        self.blur = value


    def __init__(self):

        super().__init__()

        # Setup the file structure
        if not os.path.exists("output"):
            os.makedirs("output")
        if not os.path.exists("tmp"):
            os.makedirs("tmp")

        # Settings for the printer are loaded, TODO: Customize for our dual motor printer
        self.settings = Settings()

        # Image filename which we are converting
        self.filename = None

        # GCODE -> SVG,PNG renderer
        self.cairo_renderer = Renderer(self.settings)

        # SVG -> GCODE converter
        self.gcode_converter = Svg2GcodeConverter(self.settings)

        # FILE -> SVG converter
        self.image_converter = ImageConverter()
        self.image_converter_settings = ImageConverter.ConverterSettings()

        self.label = None
        self.pix = None
        self.label1 = None
        self.image_ref = None

        # Initialize TK
        self.geometry("{}x{}".format(500, 500))

        self.n = Notebook(self, width= 400, height =400)
        self.n.pack(fill=BOTH, expand=1)

        self.f1 = Frame(self.n)
        self.f2 = Frame(self.n)

        self.rightframe = Frame(self)
        self.rightframe.pack(side=RIGHT)

        self.image_select_button = Button(self.rightframe, text="Select Image", command=self.file_select_callback)
        self.image_select_button.pack()

        self.rerender_button = Button(self.rightframe, text="Re-Render", command=self.render)
        self.rerender_button.pack()

        self.render_simulation_button = Button(self.rightframe, text="Render Simulation", command=self.render_simulation)
        self.render_simulation_button.pack()

        self.lift_markers_checkbox = Checkbutton(self.rightframe, text="Lift Markers", command=self.cairo_renderer.toggle_flip_markers)
        self.lift_markers_checkbox.pack()

        self.highpass_slider = Scale(self.rightframe, command=self.update_highpass_value, resolution=0.1, to=15)
        self.highpass_slider.set(self.image_converter_settings.highpass_filter)
        self.highpass_slider.pack()

        self.blur_slider = Scale(self.rightframe, command=self.update_blur_value, resolution=0.1, to=5)
        self.blur_slider.set(self.image_converter_settings.blur)
        self.blur_slider.pack()

        # Start TK
        self.mainloop()

    def file_select_callback(self):

        filepath = filedialog.askopenfilename(initialdir=".", title="Select file",
                                                   filetypes=(("jpeg files", "*.jpg"), ("all files", "*.*")))

        # User didn't select a file
        if len(filepath) is 0:
            return

        self.update_idletasks()

        self.filename = os.path.basename(filepath)

        self.render()

    def render(self):
        self.image_converter.convert_image(self.filename, self.image_converter_settings)
        self.gcode_converter.convert_gcode()

        self.cairo_renderer.clear_screen()
        self.cairo_renderer.render_gcode()

        self.f1.pack_forget()
        self.f2.pack_forget()

        if self.label is not None:
            self.label.pack_forget()
        if self.label1 is not None:
            self.label1.pack_forget()

        pil_image = Image.open("tmp/rendered-output.png")

      #  scale = self.winfo_width() / pil_image.width
      #  pil_image = pil_image.resize((int(scale * pil_image.width), int(scale * pil_image.height)))
        self.image_ref = ImageTk.PhotoImage(pil_image)
        self.label = Label(self.f1, image=self.image_ref)
        self.n.add(self.f1, text="Converted")
        self.label.pack(expand=True, fill="both")

        self.pic = ImageTk.PhotoImage(file="input-images/{}".format(self.filename))

        self.label1 = Label(self.f2, image=self.pic)
        self.n.add(self.f2, text="Original")
        self.label1.pack(expand=True, fill="both")

    def render_simulation(self):

        simulator = Simulator()
        simulator.render()

if __name__ == "__main__":
    Tracer()