from pathlib import Path
from random import randrange

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

# --- 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)

# 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 = []
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 = []


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.generated)):
            user.append(st.session_state.past[i])
            chatbot.append(st.session_state.generated[i])
        for x in range(len(user)):
            graph.edge(st.session_state.past[x], st.session_state.generated[x])
            try:
                graph.edge(st.session_state.generated[x], st.session_state.past[x+1])
            except:
                pass

        st.graphviz_chart(graph)


def main() -> None:
    c1, c2 = st.columns(2)
    with c1, c2:
        c1.selectbox(label=st.session_state.locale.select_placeholder1, key="model", options=AI_MODEL_OPTIONS)
        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,
        )
        match role_kind:
            case 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)
            case st.session_state.locale.radio_text2:
                c2.text_input(label=st.session_state.locale.select_placeholder3, key="role")

    if st.session_state.user_text:
        show_graph()
        show_conversation()

    get_user_input()

    show_chat_buttons()


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