import re
import tkinter as tk

CODE_PREFIX = "[1337]"

class Reply(tk.Frame):
    def __init__(self, master, message,reply_type, font_size=12, background="#252525", text_color="white"):
        super().__init__(master)
        
        self.font = ("Helvetica", font_size)
        self.background = background
        self.text_color = text_color
        self.reply_type = reply_type
        
        self.message = self.extract_code(message)
        self.reply_scope = []

        # change background of message
        self.configure(background=self.background)
        
        
        label = tk.Label(master=self, text=self.reply_type, background=background, foreground="#a51c30",
                                  font=self.font, wraplength=500 )
                
        label.grid(row=0, column=0, padx=5, pady=5, sticky='ew')
        
        row_index = 1 # Track the current grid row for widgets

        for part in self.message:
            # part is a code block
            if part.startswith(CODE_PREFIX):
                part = part[len(CODE_PREFIX):]
                code = tk.Text(master=self, width=50, font=self.font,
                               bg=self.background, fg=self.text_color, wrap="word")
                
                code.grid(row=row_index, column=0, padx=5, pady=5, sticky='ew')
                code.insert("1.0", part)
                line_count = int(code.index('end-1c').split('.')[0])
                code.config(height=line_count, state="disabled")
                
                self.reply_scope.append(code)
            else:
                label = tk.Label(master=self, text=part, background=background, foreground=text_color,
                                  font=self.font, wraplength=500 )
                label.grid(row=row_index, column=0, padx=5, pady=5, sticky='nsew')
                self.reply_scope.append(label)

            row_index += 1


    def extract_code(self, input_string: str, replacement=CODE_PREFIX) -> list:
            # Split the input string on the ``` delimiter
            split_parts = re.split(r'(```)', input_string)  # Include the delimiter in the results
            
            # Initialize an empty list to store the output array
            output_array = []
            
            # Track whether the previous part was a ``` delimiter
            previously_delimiter = False
            

            for part in split_parts:
                # Check if the current part is a ``` delimiter
                if part == "```":
                    previously_delimiter = True  # Set flag if a delimiter is found
                    continue  # Skip adding the delimiter to the output
                
                # If the previous part was a delimiter, replace the first word with the specified string
                if previously_delimiter:
                    part = re.sub(r'^\b\w+\b', replacement, part, count=1)  # Replace the programming Language
                    previously_delimiter = False  # Reset the flag
                
                # Only add non-empty parts to the output array
                if part.strip():
                    output_array.append(part)
            
            return output_array