src/streamlit_app.py

import altair as alt
import numpy as np
import pandas as pd
import streamlit as st
import random

st.set_page_config(page_title="✨ B R A I N   M E L T   S P I R A L ✨", layout="wide")

st.markdown(
    """
    # 🌪️ HYPER-DEGENERATE SPIRAL OF CHAOS v2.0 🌪️
    **Warning:** May cause temporary loss of sanity, eye strain, and existential dread.
    Turn your sound on if you're brave.  
    (jk there's no sound… yet)
    """,
    unsafe_allow_html=True
)

# ─── Controls ────────────────────────────────────────────────────────────────
col1, col2, col3, col4 = st.columns(4)

with col1:
    num_points = st.slider("Points (more = epilepsy)", 500, 80000, 15000, step=500)
with col2:
    num_turns = st.slider("Turns (higher = portal to hell)", 5, 800, 69, step=1)
with col3:
    chaos_factor = st.slider("Chaos juice", 0.0, 12.0, 3.8, step=0.1)
with col4:
    color_mode = st.radio("Color insanity level", ["Psychotic rainbow", "Strobo-seizure", "Drunk lava lamp", "Cursed pastel goth"])

speed = st.slider("Animation speed (ms per frame)", 10, 600, 80, step=10)
trail_length = st.slider("Trail memory (0 = no mercy)", 0.0, 1.0, 0.92, step=0.01)
shake = st.checkbox("Enable camera epilepsy (shake)", True)
glitch = st.checkbox("Enable digital glitch corruption", True)

# ─── Generate base spiral ────────────────────────────────────────────────────
indices = np.linspace(0, 1, num_points)
theta = 2 * np.pi * num_turns * indices * (1 + np.random.uniform(-0.02, 0.02, num_points))

# radius goes from 0 → 1 → 0 → 1.5 → chaos
radius = indices ** 0.6
radius += chaos_factor * 0.4 * np.sin(indices * 40 + np.random.randn(num_points)*3)
radius *= 1 + 0.7 * np.sin(indices * 130)

x = radius * np.cos(theta)
y = radius * np.sin(theta)

# extra dimension of suffering
z_noise = np.random.randn(num_points) * chaos_factor * 2.5
size_noise = np.abs(np.random.randn(num_points)) ** 0.7 * 120 + 10

df = pd.DataFrame({
    "x": x,
    "y": y,
    "z_noise": z_noise,
    "size": size_noise,
    "idx": indices,
    "rand": np.random.uniform(-1,1,num_points),
})

# ─── Color madness ───────────────────────────────────────────────────────────
if color_mode == "Psychotic rainbow":
    df["color"] = df["idx"] * 360
    color_scale = alt.Scale(domain=[0,360], scheme="rainbow", clamp=True)
elif color_mode == "Strobo-seizure":
    df["color"] = np.random.randint(0,360,num_points)
    color_scale = alt.Scale(domain=[0,360], scheme="category20", clamp=True)
elif color_mode == "Drunk lava lamp":
    df["color"] = np.sin(df["idx"]*30 + df["rand"]*10) * 180 + 180
    color_scale = alt.Scale(scheme="turbo")
else:  # cursed pastel goth
    df["color"] = (df["idx"] * 90 + df["rand"]*180) % 360
    color_scale = alt.Scale(scheme="pastel1")

# ─── The cursed chart ────────────────────────────────────────────────────────
base = alt.Chart(df, height=780, width=780).transform_filter(
    alt.datum.idx <= st.session_state.get("progress", 1.0)
)

points = base.mark_point(filled=True, opacity=0.9).encode(
    x=alt.X("x", axis=None),
    y=alt.Y("y", axis=None),
    color=alt.Color("color", scale=color_scale, legend=None),
    size=alt.Size("size", scale=alt.Scale(range=[0.5, 380]), legend=None),
)

if shake:
    # fake camera shake via tiny random translate
    shake_x = np.random.uniform(-1.5, 1.5) * chaos_factor
    shake_y = np.random.uniform(-1.5, 1.5) * chaos_factor
    points = points.transform_calculate(
        x_shake=f"datum.x + {shake_x}",
        y_shake=f"datum.y + {shake_y}"
    ).encode(x="x_shake:Q", y="y_shake:Q")

# very fake glitch effect
if glitch and random.random() < 0.18:
    glitch_amount = random.uniform(0.03, 0.25)
    points = points.transform_calculate(
        x_glitch=f"datum.x + (random() < 0.4 ? (random()-0.5)*{glitch_amount*30} : 0)",
        y_glitch=f"datum.y + (random() < 0.6 ? (random()-0.5)*{glitch_amount*40} : 0)"
    ).encode(x="x_glitch:Q", y="y_glitch:Q")

chart = points.properties(
    title="YOU SHOULD NOT HAVE COME HERE"
)

# ─── Animation logic (fake progressive reveal) ───────────────────────────────
if "progress" not in st.session_state:
    st.session_state.progress = 0.0

st.altair_chart(chart, use_container_width=True)

# auto-animate
if st.button("LAUNCH INTO THE VOID", type="primary"):
    st.session_state.progress = 0.0

progress = st.session_state.progress
progress += 0.004 / (speed/100)
progress = min(1.0, progress)
st.session_state.progress = progress

# trail fade simulation (very fake)
st.markdown(
    f'<div style="position:absolute; top:0; left:0; right:0; bottom:0; '
    f'background:rgba(0,0,0,{1-trail_length}); pointer-events:none;"></div>',
    unsafe_allow_html=True
)

st.markdown("---")
st.caption("Made with love, regret, and way too much numpy")