app.py

#############################################################################
# app.py
#
# Entrypoint for the StudySync app.
#############################################################################

import streamlit as st
from data_fetcher import get_my_groups, get_user_profile, get_final_recommendations

st.set_page_config(
    page_title="StudySync",
    page_icon="📚",
    layout="wide",
    initial_sidebar_state="collapsed",
)

from modules import (
    apply_styles,
    render_top_nav,
    display_user_profile,
    navigation_bar,
    display_explore_page,
    display_my_groups_page,
    display_genai_advice, 
    display_account_settings_page
)

PAGES = ["Explore Groups", "My Groups", "User Profile", "AI Recommendations", "Account Settings"]


def normalize_page(raw_value: str) -> str:
    if not raw_value:
        return "Explore Groups"

    value = str(raw_value).strip().lower()
    for page in PAGES:
        if value == page.lower():
            return page
    return "Explore Groups"


def sync_query_params() -> None:
    st.query_params["page"] = st.session_state.page


def display_app_page() -> None:
    if "page" not in st.session_state:
        st.session_state.page = "Explore Groups"

    query_page = normalize_page(st.query_params.get("page", st.session_state.page))
    st.session_state.page = query_page

    apply_styles()
    render_top_nav(selected_page=st.session_state.page)

    matches_data = [
        {
            "major": "Computer Science",
            "title": "GenAI & Systems Design",
            "match_pct": 98,
            "keywords": ["Algorithms", "Python", "GenAI"],
            "time": "Tuesdays 5:00 PM",
            "location": "Fisk Library",
            "members": "3/5",
        },
        {
            "major": "Computer Science",
            "title": "iOS Dev Hackers",
            "match_pct": 92,
            "keywords": ["Swift", "Hackathons", "App Dev"],
            "time": "Fridays 3:00 PM",
            "location": "Nashville Tech Hub",
            "members": "4/6",
        },
        {
            "major": "Computer Science",
            "title": "Technical Interview Prep",
            "match_pct": 85,
            "keywords": ["Data Structures", "Mock Interviews"],
            "time": "Wednesdays 6:00 PM",
            "location": "Remote / Discord",
            "members": "2/4",
        },
    ]

    mock_study_groups = [
        {
            "group_title": "Calc II Cram Session",
            "subject": "Math",
            "description": "Preparing for the midterm with guided practice and quick review sheets.",
            "date": "Oct 12",
            "time": "4:00 PM",
            "location": "Library Room 3",
            "members": "4/6",
        },
        {
            "group_title": "Bio 101 Lab Prep",
            "subject": "Science",
            "description": "Reviewing cell structures, lab notes, and quiz questions before Friday.",
            "date": "Oct 13",
            "time": "2:00 PM",
            "location": "Science Hall",
            "members": "2/4",
        },
        {
            "group_title": "Art History Chat",
            "subject": "Arts",
            "description": "A discussion-based session focused on Renaissance themes and major works.",
            "date": "Oct 15",
            "time": "11:00 AM",
            "location": "Cafe Blue",
            "members": "8/10",
        },
        {
            "group_title": "Python Basics",
            "subject": "CS",
            "description": "Looping, conditionals, and debugging practice for beginners.",
            "date": "Oct 16",
            "time": "6:00 PM",
            "location": "Zoom",
            "members": "12/20",
        },
    ]

    # -------------------------------------------------------------------------
    # MY GROUPS MODULE: BigQuery-backed data loading
    #
    # This section fetches real "My Groups" data from BigQuery for the
    # My Groups page only.
    #
    #
    # Current test user:
    #   user-uuid-1
    # -------------------------------------------------------------------------
    current_user_id = "user-uuid-1"

    try:
        my_groups = get_my_groups(current_user_id)
    except Exception as exc:
        st.error(f"Unable to load My Groups: {exc}")
        my_groups = []

    # -------------------------------------------------------------------------
    # USER PROFILE MODULE: BigQuery-backed data loading
    #
    # Fetches real profile data from the Users and GroupMemberships tables.
    # -------------------------------------------------------------------------
    try:
        profile = get_user_profile(current_user_id)
    except Exception as exc:
        st.error(f"Unable to load User Profile: {exc}")
        profile = None

    sync_query_params()


    # -------------------------------------------------------------------------
    # PAGE ROUTING
    #
    # My contribution:
    #   - "My Groups" page uses BigQuery data through get_my_groups()
    #
    # Teammates' sections:
    #   - "Explore Groups"
    #   - "User Profile"
    #   - "AI Recommendations"
    # -------------------------------------------------------------------------
    page = st.session_state.page
    u_id = st.session_state.get("user_id")
    u_interests = st.session_state.get("about_me", "Computer Science")

    if page == "Explore Groups":
        filtered_list = navigation_bar(mock_study_groups, current_user_id)
        display_explore_page(filtered_list)
    elif page == "My Groups":
        display_my_groups_page(my_groups)
    elif page == "User Profile":
        display_user_profile(profile)
    elif page == "AI Recommendations":
        display_genai_advice(user_id=u_id, user_interests=u_interests)
    elif page == "Account Settings":
        display_account_settings_page(u_id)




if __name__ == "__main__":
    display_app_page()