"""JustVitamin × QuikCue — AI Content Engine
Live proposal site with real Gemini-powered demos."""

import os, json, time, traceback
from pathlib import Path
from flask import (Flask, render_template, jsonify, request,
                   send_from_directory, redirect)

from scraper import scrape_product, scrape_competitor
from ai_engine import (generate_asset_pack, competitor_xray, pdp_surgeon,
                        optimise_pdp_copy, generate_product_images)

app = Flask(__name__,
            static_folder="static",
            template_folder="templates")

GEN_DIR = Path(__file__).parent / "generated"
GEN_DIR.mkdir(exist_ok=True)

# ── Page routes ──────────────────────────────────────────────

@app.route("/")
def index():
    return render_template("index.html")

@app.route("/dashboard")
def dashboard():
    return send_from_directory("static/dashboard", "index.html")

@app.route("/dashboard/jv_data.json")
def dashboard_data():
    return send_from_directory("static/dashboard", "jv_data.json")

@app.route("/proposal")
def proposal():
    return send_from_directory("static/proposal", "index.html")

@app.route("/offer")
def offer():
    return send_from_directory("static/offer", "index.html")

@app.route("/generated/<path:filename>")
def serve_generated(filename):
    return send_from_directory(GEN_DIR, filename)


# ── API: Scrape ──────────────────────────────────────────────

@app.route("/api/scrape", methods=["POST"])
def api_scrape():
    """Scrape a JustVitamins product page."""
    url = request.json.get("url", "").strip()
    if not url:
        return jsonify({"error": "No URL provided"}), 400
    try:
        data = scrape_product(url)
        if not data.get("title"):
            return jsonify({"error": "Could not find product. Check URL."}), 400
        return jsonify(data)
    except Exception as e:
        traceback.print_exc()
        return jsonify({"error": str(e)}), 500


@app.route("/api/scrape-competitor", methods=["POST"])
def api_scrape_competitor():
    """Scrape any competitor product page."""
    url = request.json.get("url", "").strip()
    if not url:
        return jsonify({"error": "No URL provided"}), 400
    try:
        data = scrape_competitor(url)
        if not data.get("title"):
            return jsonify({"error": "Could not extract product data."}), 400
        return jsonify(data)
    except Exception as e:
        traceback.print_exc()
        return jsonify({"error": str(e)}), 500


# ── API: Demo A — 12-Asset Pack ──────────────────────────────

@app.route("/api/generate-pack", methods=["POST"])
def api_generate_pack():
    """Generate a full 12-asset marketing pack from product data."""
    product = request.json
    if not product:
        return jsonify({"error": "No product data"}), 400
    try:
        t0 = time.time()
        pack = generate_asset_pack(product)
        pack["_generation_time"] = f"{time.time()-t0:.1f}s"
        pack["_product_title"] = product.get("title", "")
        return jsonify(pack)
    except Exception as e:
        traceback.print_exc()
        return jsonify({"error": str(e)}), 500


# ── API: Demo B — Competitor X-Ray ───────────────────────────

@app.route("/api/competitor-xray", methods=["POST"])
def api_competitor_xray():
    """Scrape competitor + run AI analysis."""
    url = request.json.get("url", "").strip()
    if not url:
        return jsonify({"error": "No URL provided"}), 400
    try:
        t0 = time.time()
        comp_data = scrape_competitor(url)
        if not comp_data.get("title"):
            return jsonify({"error": "Could not scrape competitor page."}), 400
        analysis = competitor_xray(comp_data)
        analysis["_scrape_data"] = {
            "title": comp_data.get("title"),
            "price": comp_data.get("price"),
            "brand": comp_data.get("brand"),
            "url": url,
        }
        analysis["_generation_time"] = f"{time.time()-t0:.1f}s"
        return jsonify(analysis)
    except Exception as e:
        traceback.print_exc()
        return jsonify({"error": str(e)}), 500


# ── API: Demo C — PDP Surgeon ────────────────────────────────

@app.route("/api/pdp-surgeon", methods=["POST"])
def api_pdp_surgeon():
    """Rewrite PDP copy in a given style."""
    data = request.json or {}
    product = data.get("product")
    style = data.get("style", "balanced")
    if not product:
        return jsonify({"error": "No product data"}), 400
    try:
        t0 = time.time()
        result = pdp_surgeon(product, style)
        result["_generation_time"] = f"{time.time()-t0:.1f}s"
        return jsonify(result)
    except Exception as e:
        traceback.print_exc()
        return jsonify({"error": str(e)}), 500


# ── API: Full PDP Optimise ───────────────────────────────────

@app.route("/api/optimise", methods=["POST"])
def api_optimise():
    """Full PDP rewrite — scrape + AI copy."""
    product = request.json
    if not product:
        return jsonify({"error": "No product data"}), 400
    try:
        t0 = time.time()
        copy = optimise_pdp_copy(product)
        copy["_generation_time"] = f"{time.time()-t0:.1f}s"
        return jsonify(copy)
    except Exception as e:
        traceback.print_exc()
        return jsonify({"error": str(e)}), 500


# ── API: Image Generation ────────────────────────────────────

@app.route("/api/generate-images", methods=["POST"])
def api_generate_images():
    """Generate AI product images via Nano Banana / Pro."""
    product = request.json
    if not product:
        return jsonify({"error": "No product data"}), 400
    try:
        t0 = time.time()
        images = generate_product_images(product)
        images["_generation_time"] = f"{time.time()-t0:.1f}s"
        return jsonify(images)
    except Exception as e:
        traceback.print_exc()
        return jsonify({"error": str(e)}), 500


# ── Health check ─────────────────────────────────────────────

@app.route("/api/health")
def health():
    return jsonify({
        "status": "ok",
        "gemini_key_set": bool(os.environ.get("GEMINI_API_KEY")),
    })


if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5050, debug=True)