"""Rule-based concierge for the Guide tab.

Instant answers about the platform (tiers, models, data, premium access) without
loading any LLM — so it works on CPU Spaces and while the main model is busy.
Keyword-matched topics with a menu fallback.
"""

CONTACT_EMAIL = "finpy07@gmail.com"

TOPICS = {
    "start": {
        "keywords": ["start", "begin", "how do i", "what can", "help", "guide", "do here", "use this"],
        "answer": (
            "**Welcome to FinLLM Foundry!** Here's what you can do:\n\n"
            "1. **Chat (General tier — free):** go to the *Chat* tab, keep tier = "
            "*General*, and ask finance questions — filings, IFRS vs GAAP, Basel III, "
            "market concepts, earnings analysis.\n"
            "2. **Premium tier:** pick from a catalog of larger finance-tuned models "
            "(Qwen3, DeepSeek-R1 distills, Llama 3.3, Mistral, Gemma). Ask me "
            "*'how do I get premium access?'* for details.\n"
            "3. **Custom domains:** need a model tuned for law, medical, regulatory, "
            "or your own documents? Ask me about *custom domains*.\n\n"
            "Try one of the quick questions below, or just type."
        ),
    },
    "premium": {
        "keywords": ["premium", "access", "tier 2", "2nd tier", "second tier", "subscribe",
                     "price", "pricing", "pay", "unlock", "code"],
        "answer": (
            "**Getting Premium (2nd-tier) access**\n\n"
            "Premium unlocks the full model catalog — larger models (up to 70B), "
            "reasoning-tuned variants, and priority for custom requests.\n\n"
            f"📧 **Email {CONTACT_EMAIL}** with:\n"
            "- your name and organisation (if any)\n"
            "- what you plan to use it for (research, analysis, product…)\n"
            "- which models you're most interested in\n\n"
            "You'll receive a personal **access code** — enter it in the *Chat* tab "
            "under *Premium access code* and press *Unlock premium*."
        ),
    },
    "custom_domain": {
        "keywords": ["custom", "domain", "law", "legal", "medical", "regulatory", "my data",
                     "own data", "company data", "specific", "bespoke", "other domain"],
        "answer": (
            "**Custom / user-specific domains**\n\n"
            "The platform currently ships finance-tuned adapters, but the same "
            "pipeline supports additional domains (law, medical, regulatory, or your "
            "own document corpus) as dedicated adapters on the model of your choice.\n\n"
            f"📧 **Email {CONTACT_EMAIL}** describing:\n"
            "- the domain and typical questions you need answered\n"
            "- any data you can provide (filings, policies, internal docs)\n"
            "- preferred base model and size\n\n"
            "Custom-domain adapters are part of the premium tier."
        ),
    },
    "models": {
        "keywords": ["model", "which", "choose", "qwen", "deepseek", "llama", "mistral",
                     "gemma", "catalog", "difference", "best"],
        "answer": (
            "**Choosing a model**\n\n"
            "- **General tier (free):** Qwen2.5-7B + finance adapter — great default "
            "for most questions.\n"
            "- **Qwen3 8B/14B:** strongest all-round quality per GB (premium).\n"
            "- **DeepSeek-R1 Distill 14B:** best for multi-step *reasoning* — "
            "valuation walk-throughs, ratio analysis (premium).\n"
            "- **Llama 3.3 70B:** highest ceiling, slower (premium).\n"
            "- **Mistral Small 24B / Gemma 3 27B:** strong mid-size options (premium).\n\n"
            "Rule of thumb: start with General; move up if answers lack depth. "
            "Ask *'how do I get premium access?'* to unlock the catalog."
        ),
    },
    "data": {
        "keywords": ["data", "train", "dataset", "source", "sec", "edgar", "filings",
                     "ifrs", "gaap", "basel", "fomc", "cfa"],
        "answer": (
            "**What the finance adapters are trained on**\n\n"
            "Open instruction datasets (FinGPT suite, FiQA, Finance-Alpaca, Financial "
            "PhraseBank) plus documents ingested from primary sources: SEC EDGAR "
            "10-K/10-Q filings, FOMC minutes, and public regulatory texts "
            "(IFRS, Basel III, FCA, MiFID II).\n\n"
            "No proprietary or licensed feeds (Bloomberg, WRDS) are redistributed in "
            "public adapters."
        ),
    },
    "disclaimer": {
        "keywords": ["advice", "invest", "buy", "sell", "recommend", "legal advice",
                     "disclaimer", "liability"],
        "answer": (
            "**Important:** FinLLM Foundry is for research and education only. It does "
            "**not** provide personalized investment, legal, accounting, or regulatory "
            "advice, and outputs may contain errors — always verify against primary "
            "sources and consult qualified professionals for decisions."
        ),
    },
}

MENU = (
    "I can help with any of these — tap a quick question below or type your own:\n\n"
    "- **Getting started** — what you can do here\n"
    "- **Premium access** — how to unlock the 2nd tier\n"
    "- **Custom domains** — law / medical / regulatory / your own data\n"
    "- **Choosing a model** — what's in the catalog\n"
    "- **Training data** — what the adapters learned from\n\n"
    f"For anything else, email **{CONTACT_EMAIL}**."
)

QUICK_QUESTIONS = [
    "What can I do here?",
    "How do I get premium access?",
    "Can I get a model for my own domain or data?",
    "Which model should I choose?",
    "What data are the models trained on?",
]


def guide_answer(message: str) -> str:
    text = message.lower()
    scores = {}
    for name, topic in TOPICS.items():
        hits = sum(1 for kw in topic["keywords"] if kw in text)
        if hits:
            scores[name] = hits
    if not scores:
        return MENU
    best = max(scores, key=scores.get)
    return TOPICS[best]["answer"]