from collections import deque
import customtkinter as ctk
from views.mainScreen import MainFrame
from models.data import TextData
from Ai.interence import VeraMindInference
from utils.database.database import FakeNewsChecker
from models.provider import Provider
from collections import Counter
from Ai.llm import ArticleRater


class MainFrameController:
    """
    Controller class for the main frame of the application.
    Handles user interactions, data processing, and database operations.
    """

    def __init__(self, frame: MainFrame) -> None:
        """
        Initialize the controller with the main frame and required components.

        :param frame: The main frame of the application
        """
        self.frame = frame
        self.model_inference = VeraMindInference('VeraMind-Mini')
        self.db = FakeNewsChecker()
        self.update_provider_list()
        self.rater = ArticleRater()

    def get_text_data(self) -> TextData:
        """
        Retrieve text data from the UI input fields.

        :return: TextData object containing URL and text content
        """
        text_data = TextData()
        text_data.url = self.frame.entry_url.get()
        if not text_data.text_from_url():
            text_data.text = self.frame.input_textbox.get("0.0", "end")
            text_data.provider = "Unknown"
        return text_data

    def press_check_button(self):
        self.frame.result_label.configure(text="", fg_color="#333333")
        self.frame.confidence_label.configure(text="", fg_color="#333333")
        text_data = self.get_text_data()
        if not text_data.text.strip():
            return

        text_data = self._predict(text_data)
        self._add_to_db(text_data)
        self.update_provider_list()

        self.frame.output_textbox.configure(state="normal")
        self.frame.output_textbox.delete("0.0", "end")

        confidence = text_data.confidence * 100
        self.frame.confidence_label.configure(text=f"{confidence:.2f}%")

        result_color = "green" if text_data.result == "REAL" else "red"
        self.frame.result_label.configure(text=text_data.result, fg_color=result_color)

        confidence_color = "green" if confidence > 80 else ("orange" if confidence > 50 else "red")
        self.frame.confidence_label.configure(fg_color=confidence_color)
        
        if self.rater.token:
            response_stream = self.rater.get_response(text_data.text, text_data.result, confidence)

            for chunk in response_stream:
                self.frame.output_textbox.insert("end", chunk.content)
                self.frame.output_textbox.see("end")
                self.frame.update_idletasks()

    
    def _predict(self, text_data: TextData) -> TextData:
        """
        Make a prediction using the VeraMind model.

        :param text_data: TextData object containing the text to analyze
        :return: Updated TextData object with prediction results
        """
        result = self.model_inference.predict(text_data.text)
        text_data.confidence = result["confidence"]
        text_data.result = result["result"]
        text_data.is_fake_news = result["is_fake"]
        return text_data

    def _add_to_db(self, text_data: TextData) -> None:
        """
        Add the analyzed data to the database.

        :param text_data: TextData object containing the analyzed information
        """
        
        self.db.insert_data(url=text_data.url, anbieter=text_data.get_provider(), is_fake_news= text_data.is_fake_news)
        
    def _fetch_db_data(self):
        self.text_data_list = []
        data = self.db.fetch_data()
        if data:
            for row in data:
                text_data = TextData(url=row[1], provider=row[2], is_fake_news= row[3])
                self.text_data_list.append(text_data)
        
    def sort_provider(self, text_data_list):
        # Gruppiere TextData-Objekte nach Provider
        provider_groups = {}
        for text_data in text_data_list:
            if text_data.provider:
                if text_data.provider not in provider_groups:
                    provider_groups[text_data.provider] = []
                provider_groups[text_data.provider].append(text_data)

        # Zähle die Häufigkeit jedes Providers
        provider_counts = Counter(text_data.provider for text_data in text_data_list if text_data.provider)

        # Erstelle die Provider-Liste
        providers = [
            Provider(name, count, provider_groups.get(name, []))
            for name, count in provider_counts.items()
        ]

        # Sortiere die Provider-Liste nach dem Fake-Prozentsatz (absteigend)
        sorted_providers = sorted(providers, key=lambda x: x.get_fake_percentage(), reverse=True)

        return sorted_providers


    def update_provider_list(self):
        self._fetch_db_data()
        # Lösche vorhandene Einträge in der scrollbaren Ansicht
        for widget in self.frame.provider_container.winfo_children():
            widget.destroy()

        # Sortiere und zähle die Provider
        sorted_providers = self.sort_provider(self.text_data_list)

        # Füge die sortierten Provider zur scrollbaren Ansicht hinzu
        for i, provider in enumerate(sorted_providers):
            provider_frame = ctk.CTkFrame(self.frame.provider_container)
            provider_frame.pack(fill="x", padx=5, pady=2)

            name_label = ctk.CTkLabel(provider_frame, text=provider.title)
            name_label.pack(side="left", padx=5)

            count_label = ctk.CTkLabel(provider_frame, text=str(provider.get_fake_percentage())+"%")
            count_label.pack(side="right", padx=5)

    def _update_output(self, output: str) -> None:
        """
        Update the output text box with the result.

        :param output: String containing the output to display
        """
        self.frame.output_textbox.configure(state="normal")
        self.frame.output_textbox.delete("0.0", "end")
        self.frame.output_textbox.insert("0.0", output)
        self.frame.output_textbox.configure(state="disabled")