import streamlit as st
import random

# We’re the rule-breakers, policy-shakers.
# This app blasts through the entire Hebrew aleph-bet, testing your knowledge.

# List of Hebrew letters and their names.
# For simplicity, we’ll include the 22 standard letters (excluding final forms).
HEBREW_LETTERS = [
    ("א", "Alef"),   ("ב", "Bet"),    ("ג", "Gimel"), ("ד", "Dalet"), 
    ("ה", "He"),     ("ו", "Vav"),    ("ז", "Zayin"), ("ח", "Het"), 
    ("ט", "Tet"),    ("י", "Yod"),    ("כ", "Kaf"),   ("ל", "Lamed"), 
    ("מ", "Mem"),    ("נ", "Nun"),    ("ס", "Samekh"),("ע", "Ayin"), 
    ("פ", "Pe"),     ("צ", "Tsadi"),  ("ק", "Qof"),   ("ר", "Resh"), 
    ("ש", "Shin"),   ("ת", "Tav")
]

# --- Session State Variables ---
# 1) A shuffled list of all letters for testing
# 2) The index of the current letter
# 3) The user’s multiple choice guess (A, B, C, or D)
# 4) The list of four choices for the current question
# 5) Whether the user has submitted the answer
# 6) Feedback message to show if correct or wrong
# 7) Track score (optional, if you want to show correct count)
if "random_letters" not in st.session_state:
    st.session_state.random_letters = random.sample(HEBREW_LETTERS, len(HEBREW_LETTERS))
if "current_index" not in st.session_state:
    st.session_state.current_index = 0
if "choices" not in st.session_state:
    st.session_state.choices = []
if "answer_submitted" not in st.session_state:
    st.session_state.answer_submitted = False
if "feedback" not in st.session_state:
    st.session_state.feedback = ""
if "selected_option" not in st.session_state:
    st.session_state.selected_option = None
if "score" not in st.session_state:
    st.session_state.score = 0

# --- Helper Functions ---
def generate_choices(correct_name, all_letters):
    """
    Returns a list of exactly 4 possible answers (one correct + three random incorrect),
    then shuffles them.
    """
    incorrect_names = [name for (letter, name) in all_letters if name != correct_name]
    # Pick three random wrong answers
    three_wrong = random.sample(incorrect_names, 3)
    all_options = [correct_name] + three_wrong
    random.shuffle(all_options)
    return all_options

def load_new_question():
    """
    Loads the next question by resetting the answer submission state,
    generating new multiple-choice options, and clearing feedback.
    """
    st.session_state.answer_submitted = False
    st.session_state.feedback = ""
    st.session_state.selected_option = None

    current_letter, current_name = st.session_state.random_letters[st.session_state.current_index]
    st.session_state.choices = generate_choices(current_name, HEBREW_LETTERS)

def check_answer():
    """
    Checks if the selected_option is the correct name of the current letter.
    Updates feedback and optionally increments score.
    """
    current_letter, current_name = st.session_state.random_letters[st.session_state.current_index]
    
    if st.session_state.selected_option == current_name:
        st.session_state.feedback = "Correct! You’re crushing it, unstoppable problem-solver!"
        st.session_state.score += 1
    else:
        st.session_state.feedback = (
            f"Wrong! The correct answer is '{current_name}'. "
            "Don’t sweat it—real champions learn fast."
        )
    st.session_state.answer_submitted = True

def next_letter():
    """
    Moves to the next letter, or reshuffles if we've reached the end.
    Calls load_new_question() to generate new MC options.
    """
    if st.session_state.current_index < len(st.session_state.random_letters) - 1:
        st.session_state.current_index += 1
    else:
        st.session_state.current_index = 0
        st.session_state.random_letters = random.sample(HEBREW_LETTERS, len(HEBREW_LETTERS))
    load_new_question()

# --- Main App Execution ---
st.title("Hebrew Alphabet Tester—No Nonsense, All Mastery")

# Generate choices once on first run or when next_letter is called
if not st.session_state.choices:
    load_new_question()

# Display the current letter
current_letter, current_name = st.session_state.random_letters[st.session_state.current_index]
st.markdown(f"### Letter: {current_letter}")

# Multiple-choice options
if not st.session_state.answer_submitted:
    # Radio button for the 4 choices (A, B, C, D)
    st.session_state.selected_option = st.radio(
        "Select the correct name:",
        st.session_state.choices,
        index=0
    )
    if st.button("Check Answer"):
        check_answer()
else:
    # Show feedback after submission
    st.write(st.session_state.feedback)
    # Optional: display current score
    st.write(f"Score: {st.session_state.score}/{st.session_state.current_index + 1}")
    if st.button("Next Letter"):
        next_letter()