import sys
import os
import tkinter as tk
from tkinter import ttk
import RPi.GPIO as GPIO
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import time
# Add the parent directory to the module search path
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
from interface_board_pins import *  # Import pin assignments

def create_digital_plot_tab(notebook):
    frame = ttk.Frame(notebook)
    notebook.add(frame, text="Digital Inputs")

    figure = Figure(figsize=(8, 5), dpi=100)
    ax = figure.add_subplot(1, 1, 1)
    ax.set_title("Digital Input States Over Time")
    ax.set_xlabel("Time (s)")
    ax.set_ylabel("State (0=LOW, 1=HIGH)")
    ax.set_ylim(-0.2, 1.2)

    canvas = FigureCanvasTkAgg(figure, master=frame)
    canvas.get_tk_widget().pack(fill=tk.BOTH, expand=True)

    input_channels = list(range(8))
    data = {ch: [] for ch in input_channels}
    time_data = []

    def update_plot():
        current_time = time.time()
        if len(time_data) > 50:
            for ch in input_channels:
                data[ch].pop(0)
            time_data.pop(0)

        time_data.append(current_time)
        for ch in input_channels:
            state = GPIO.input(GPIO_DIGITAL_INPUTS[ch])
            data[ch].append(state)

        ax.clear()
        ax.set_title("Digital Input States Over Time")
        ax.set_xlabel("Time (s)")
        ax.set_ylabel("State (0=LOW, 1=HIGH)")
        ax.set_ylim(-0.2, 1.2)

        for ch in input_channels:
            ax.step(time_data, data[ch], label=f"IN {ch+1}", where="post")

        ax.legend(loc="upper right")
        canvas.draw()
        frame.after(500, update_plot)

    update_plot()