from pathlib import Path
from random import randrange

from AMUseBotBackend.src.DP.dp import DP
from AMUseBotBackend.src.DST.dst import DST

import graphviz
import streamlit as st
from PIL import Image
from src.utils.conversation import get_user_input, show_chat_buttons, show_conversation
from src.utils.lang import en

import os
from dotenv import load_dotenv

if __name__ == '__main__':
    
    # --- PATH SETTINGS ---
    current_dir: Path = Path(__file__).parent if "__file__" in locals() else Path.cwd()
    css_file: Path = current_dir / "src/styles/.css"
    assets_dir: Path = current_dir / "assets"
    icons_dir: Path = assets_dir / "icons"
    img_dir: Path = assets_dir / "img"
    tg_svg: Path = icons_dir / "tg.svg"
    favicon: Path = icons_dir / "favicons/0.png"
    # --- GENERAL SETTINGS ---
    LANG_PL: str = "Pl"
    AI_MODEL_OPTIONS: list[str] = [
        "gpt-3.5-turbo",
        "gpt-4",
        "gpt-4-32k",
    ]

    CONFIG = {"page_title": "AMUsebot", "page_icon": Image.open(favicon)}

    st.set_page_config(**CONFIG)

    # --- LOAD CSS ---
    with open(css_file) as f:
        st.markdown(f"<style>{f.read()}</style>", unsafe_allow_html=True)

    load_dotenv()

    DIALOG_PATH = os.getenv('DIALOG_PATH')
    RECIPE_PATH = os.getenv('RECIPE_PATH')

    # Storing The Context
    if "locale" not in st.session_state:
        st.session_state.locale = en
    if "generated" not in st.session_state:
        st.session_state.generated = ["Hello! I'm AMUseBot, a virtual cooking assistant. Please tell me the name of the dish that you'd like to prepare today."]
    if "past" not in st.session_state:
        st.session_state.past = []
    if "messages" not in st.session_state:
        st.session_state.messages = []
    if "user_text" not in st.session_state:
        st.session_state.user_text = ""
    if "input_kind" not in st.session_state:
        st.session_state.input_kind = st.session_state.locale.input_kind_1
    if "seed" not in st.session_state:
        st.session_state.seed = randrange(10 ** 3)  # noqa: S311
    if "costs" not in st.session_state:
        st.session_state.costs = []
    if "total_tokens" not in st.session_state:
        st.session_state.total_tokens = []
    if "dst" not in st.session_state:
        st.session_state.dst = DST(recipe_path=RECIPE_PATH, dialog_path=DIALOG_PATH)
    if "dp" not in st.session_state:
        st.session_state.dp = DP(dst=st.session_state.dst)

def show_graph():
    # Create a graphlib graph object
    if st.session_state.generated:
        user, chatbot = [], []
        graph = graphviz.Digraph()
        for i in range(len(st.session_state.past)):
            chatbot.append(st.session_state.generated[i])
            user.append(st.session_state.past[i])
        for x in range(len(user)):
            chatbot_text = [word + '\n' if i % 5 == 0 and i > 0 else word for i, word in enumerate(st.session_state.generated[x].split(' '))]
            user_text    = [word + '\n' if i % 5 == 0 and i > 0 else word for i, word in enumerate(st.session_state.past[x].split(' '))]
            graph.edge(' '.join(chatbot_text), ' '.join(user_text))
            try:
                graph.edge(' '.join(user_text), ' '.join([word + '\n' if i % 5 == 0 and i > 0 else word for i, word in enumerate(st.session_state.generated[x + 1].split(' '))]))
            except:
                pass
        st.graphviz_chart(graph)


def main() -> None:
    c1, c2 = st.columns(2)
    with c1, c2:
        st.session_state.input_kind = c2.radio(
            label=st.session_state.locale.input_kind,
            options=(st.session_state.locale.input_kind_1, st.session_state.locale.input_kind_2),
            horizontal=True,
        )
        role_kind = c1.radio(
            label=st.session_state.locale.radio_placeholder,
            options=(st.session_state.locale.radio_text1, st.session_state.locale.radio_text2),
            horizontal=True,
        )
        if role_kind == st.session_state.locale.radio_text1:
            c2.selectbox(label=st.session_state.locale.select_placeholder2, key="role",
                             options=st.session_state.locale.ai_role_options)
        elif role_kind == st.session_state.locale.radio_text2: 
            c2.text_input(label=st.session_state.locale.select_placeholder3, key="role")
        
    get_user_input()
    show_chat_buttons()
    
    show_conversation()
    with st.sidebar:
        show_graph()


if __name__ == "__main__":
    st.markdown(f"<h1 style='text-align: center;'>{st.session_state.locale.title}</h1>", unsafe_allow_html=True)
    main()