import os
import threading
import time
import requests
import zipfile
import csv
import re
from bs4 import BeautifulSoup
from flask import Flask, send_file, render_template
from flask_cors import CORS  # ✅ NEW IMPORT
from flask import send_from_directory

app = Flask(__name__, template_folder="templates")
CORS(app)  # ✅ ENABLE CORS FOR ALL ROUTES

# Constants
ZIP_URL = "https://docs.google.com/spreadsheets/d/1DpuNNPfr5NwAnr1enVHjHjs_zhWiKwXd6KCpGXGjqxw/export?format=zip"
ZIP_FILE = "Trackerhub.zip"
EXTRACT_FOLDER = "sheet"
HTML_FILE = os.path.join(EXTRACT_FOLDER, "Artists.html")
CSV_FILE = "artists.csv"

# Artist names to exclude (no emojis, trimmed)
EXCLUDE_ARTISTS = {
    "🤖 AI Models",
    "🤖 Lawson",
    "Comps & Edits",
    "Worst Comps & Edits",
    "Yedits",
    "Allegations",
    "Rap Disses Timeline",
    "Underground Artists"
}

def remove_emojis(text):
    emoji_pattern = re.compile(
        r'\s*['
        '\U0001F600-\U0001F64F'
        '\U0001F300-\U0001F5FF'
        '\U0001F680-\U0001F6FF'
        '\U0001F1E0-\U0001F1FF'
        '\u2702-\u27B0'
        '\u24C2-\U0001F251'
        ']\s*',
        flags=re.UNICODE
    )
    cleaned_text = emoji_pattern.sub('', text)
    return cleaned_text.strip()

def fetch_and_process():
    try:
        print("[*] Downloading ZIP...")
        r = requests.get(ZIP_URL)
        with open(ZIP_FILE, "wb") as f:
            f.write(r.content)

        print("[*] Extracting ZIP...")
        with zipfile.ZipFile(ZIP_FILE, 'r') as zip_ref:
            zip_ref.extractall(EXTRACT_FOLDER)

        print("[*] Parsing HTML...")
        with open(HTML_FILE, "r", encoding="utf-8") as f:
            soup = BeautifulSoup(f, "html.parser")

        table = soup.find("table", class_="waffle")
        if not table:
            print("[!] Table not found.")
            return

        rows = table.find_all("tr")[4:]

        data = []
        for row in rows:
            cols = row.find_all("td")
            if len(cols) < 4:
                continue

            artist_cell = cols[0]
            a_tag = artist_cell.find("a")
            artist_name_raw = a_tag.text.strip() if a_tag else artist_cell.text.strip()
            artist_name_clean = remove_emojis(artist_name_raw.replace('"', '')).strip()

            if artist_name_clean in EXCLUDE_ARTISTS:
                continue

            artist_url = a_tag['href'] if a_tag and a_tag.has_attr('href') else ""
            credits = cols[1].get_text(strip=True)
            updated = cols[2].get_text(strip=True)
            links_work = cols[3].get_text(strip=True)

            cleaned_row = [
                artist_name_clean,
                remove_emojis(artist_url.replace('"', '')),
                remove_emojis(credits.replace('"', '')),
                remove_emojis(updated.replace('"', '')),
                remove_emojis(links_work.replace('"', ''))
            ]

            if all(cell for cell in cleaned_row):
                data.append(cleaned_row)

        data.sort(key=lambda row: row[0].lower())

        print(f"[*] Writing {len(data)} rows to CSV...")
        with open(CSV_FILE, "w", newline="", encoding="utf-8") as f:
            writer = csv.writer(f)
            writer.writerow(["artist name", "URL", "credits", "updated", "links work"])
            writer.writerows(data)

        print("[✓] Done! CSV updated.")

    except Exception as e:
        print(f"[!] Error: {e}")

def background_updater():
    while True:
        fetch_and_process()
        time.sleep(600)

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

@app.route('/favicon.png')
def serve_favicon():
    return send_from_directory(app.template_folder, 'favicon.png')

@app.route("/artists.csv")
def serve_csv():
    if os.path.exists(CSV_FILE):
        return send_file(CSV_FILE, mimetype="text/csv", as_attachment=False)
    return "CSV not ready yet.", 503

@app.route("/artists.html")
def serve_artists_html():
    if os.path.exists(HTML_FILE):
        return send_file(HTML_FILE, mimetype="text/html")
    return "HTML file not found.", 404

@app.route("/<path:path>")
def catch_all(path):
    if os.path.exists(CSV_FILE):
        return send_file(CSV_FILE, mimetype="text/csv", as_attachment=False)
    return "CSV not ready yet.", 503

@app.route('/_next/<path:filename>')
def serve_next(filename):
    return send_from_directory(os.path.join(app.template_folder, '_next'), filename)

if __name__ == "__main__":
    thread = threading.Thread(target=background_updater, daemon=True)
    thread.start()
    app.run(host="0.0.0.0", port=5000)