memes.py

# memes.py
import streamlit as st
import re
import torch
import requests
from openai import OpenAI
from prompts import SUMMARY_PROMPT, MEME_PROMPT

IMGFLIP_URL = "https://api.imgflip.com/caption_image"

# 12 template names → Imgflip template_ids
TEMPLATE_IDS = {
    "drake hotline bling":        "181913649",
    "uno draw 25 cards":           "217743513",
    "bernie asking for support":   "222403160",
    "disaster girl":               "97984",
    "waiting skeleton":            "109765",
    "always has been":             "252600902",
    "woman yelling at cat":        "188390779",
    "i bet he's thinking about other women": "110163934",
    "one does not simply":         "61579",
    "success kid":                 "61544",
    "oprah you get a":             "28251713",
    "hide the pain harold":        "27813981",
}

# Initialize OpenAI client
client = OpenAI(api_key=st.secrets["OPENAI_API_KEY"])


def call_openai(prompt: str) -> str:
    """Call gpt-4o-mini via the Responses API."""
    response = client.responses.create(
        model="gpt-4o-mini",
        instructions="You are a helpful assistant",
        input=prompt,
    )
    return response.output_text.strip()


def article_to_meme(article_text: str) -> str:
    # 1) Summarize
    summary = call_openai(SUMMARY_PROMPT.format(article_text=article_text))

    # 2) Choose template + captions
    output = call_openai(MEME_PROMPT.format(summary=summary))

    # 3) Parse model output
    match_t = re.search(r"template:\s*(.+)", output, re.IGNORECASE)
    match0 = re.search(r"text0:\s*(.+)", output, re.IGNORECASE)
    match1 = re.search(r"text1:\s*(.+)", output, re.IGNORECASE)
    if not (match_t and match0 and match1):
        raise ValueError(f"Parsing failed: {output}")
    template = match_t.group(1).strip()
    text0 = match0.group(1).strip()
    text1 = match1.group(1).strip()

    # 4) Render meme
    tpl_id = TEMPLATE_IDS.get(template.lower())
    if not tpl_id:
        raise KeyError(f"Unknown template: {template}")
    resp = requests.post(
        IMGFLIP_URL,
        params={
            "template_id": tpl_id,
            "username": st.secrets["IMGFLIP_USERNAME"],
            "password": st.secrets["IMGFLIP_PASSWORD"],
            "text0": text0,
            "text1": text1,
        }
    )
    resp.raise_for_status()
    data = resp.json()
    if not data.get("success", False):
        raise Exception(data.get("error_message"))

    meme_url = data["data"]["url"]
    return meme_url