import asyncio
import os
import asyncpg
import smtplib
import re
from datetime import datetime
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from playwright.async_api import async_playwright
try:
    from playwright_stealth import stealth_async as apply_stealth
except ImportError:
    from playwright_stealth import stealth as apply_stealth

from dotenv import load_dotenv

load_dotenv()

DB_URL = "postgresql://teeoff_admin:teeoff_secret_password@db:5432/teeoff"

def clean_text(text):
    return re.sub(r'[^a-zA-Z0-9æøåÆØÅ]', '', text).lower()

def interpret_status(text, keyword=None):
    t_raw = text.lower()
    
    if keyword:
        k_clean = clean_text(keyword)
        if k_clean not in clean_text(t_raw):
            return "NOT_FOUND"
            
        parts = re.split(re.escape(keyword), t_raw, flags=re.IGNORECASE)
        if len(parts) > 1:
            t_raw = parts[1][:150]
        else:
            t_raw = t_raw[-200:]

    if any(word in t_raw for word in ["stengt", "lukket", "frost", "snø", "is", "closed", "stenger"]):
        return "stengt"
    if any(word in t_raw for word in ["vintergreen", "vintergrønn", "vinter"]):
        return "aapen_med_vintergreener"
    if any(word in t_raw for word in ["snart", "åpner kl"]):
        return "aapner_snart"
    if any(word in t_raw for word in ["åpen", "åpent", "aapen", "open"]):
        return "aapen"
    return "ukjent"

def send_report(changes, warnings, successes):
    if not changes and not warnings and not successes: return
    subject = f"TeeOff Banestatus Rapport - {datetime.now().strftime('%d.%m.%Y')}"
    body = "BANESTATUS RAPPORT\n" + "="*30 + "\n\n"
    
    if changes: body += "✅ OPPDATERINGER:\n" + "\n".join(changes) + "\n\n"
    if warnings: body += "⚠️ MERKNADER / ADVARSLER:\n" + "\n".join(warnings) + "\n\n"
    if successes: body += "🆗 VELLYKKEDE SJEKKER (INGEN ENDRING):\n" + "\n".join(successes) + "\n"
    
    msg = MIMEMultipart()
    msg['From'] = os.getenv("SMTP_USER")
    msg['To'] = os.getenv("EMAIL_TO")
    msg['Subject'] = subject
    msg.attach(MIMEText(body, 'plain'))
    try:
        with smtplib.SMTP_SSL(os.getenv("SMTP_SERVER"), int(os.getenv("SMTP_PORT"))) as server:
            server.login(os.getenv("SMTP_USER"), os.getenv("SMTP_PASS"))
            server.send_message(msg)
        print("✅ Rapport sendt på e-post.")
    except Exception as e: 
        print(f"❌ E-post feil: {e}")

async def run_daily_scraping():
    print(f"🚀 Starter sjekk {datetime.now().strftime('%H:%M:%S')}...")
    conn = await asyncpg.connect(DB_URL)
    facilities = await conn.fetch("SELECT id, name, scrape_status_url, scrape_status_selector, scrape_method FROM facilities WHERE scrape_status_url IS NOT NULL")
    
    changes, warnings, successes = [], [], []

    async with async_playwright() as p:
        browser = await p.chromium.launch(headless=True)
        context = await browser.new_context()

        for f in facilities:
            page = await context.new_page()
            try: await apply_stealth(page)
            except: pass

            try:
                print(f"🔍 Besøker {f['name']}...")
                # Endret fra networkidle til domcontentloaded for å unngå Arendal-timeout
                await page.goto(f['scrape_status_url'], timeout=60000, wait_until="domcontentloaded")
                await asyncio.sleep(3) # Gir Javascript 3 sekunder på å bygge siden

                full_text = ""
                method = f.get('scrape_method') or 'css_selector'

                if method == 'css_selector':
                    element = page.locator(f['scrape_status_selector']).first
                    if await element.count() == 0:
                        warnings.append(f"❌ {f['name']}: Fant ikke CSS-elementet '{f['scrape_status_selector']}'")
                        continue
                    full_text = await element.inner_text()

                elif method == 'iframe_golfbox':
                    frame = page.frame_locator('iframe[src*="golfbox"]')
                    element = frame.locator(f['scrape_status_selector']).first
                    if await element.count() == 0:
                        warnings.append(f"❌ {f['name']}: Fant ikke elementet '{f['scrape_status_selector']}' i iframen")
                        continue
                    full_text = await element.inner_text()
                
                else:
                    warnings.append(f"⚠️ {f['name']}: Ukjent skrapemetode i databasen: '{method}'")
                    continue

                await conn.execute("UPDATE facilities SET status_updated_at = CURRENT_DATE WHERE id = $1", f['id'])

                courses = await conn.fetch("SELECT id, name, status, scrape_keyword FROM courses WHERE facility_id = $1", f['id'])
                for c in courses:
                    new_status = interpret_status(full_text, c['scrape_keyword'])
                    
                    if new_status == "NOT_FOUND":
                        warnings.append(f"❓ {f['name']} ({c['name']}): Fant ikke søkeordet '{c['scrape_keyword']}' i teksten på siden.")
                        continue

                    old_status = c['status'] or "ukjent"
                    if new_status != old_status and new_status != "ukjent":
                        await conn.execute("UPDATE courses SET status = $1 WHERE id = $2", new_status, c['id'])
                        changes.append(f"🔹 {f['name']} ({c['name']}): {old_status.upper()} ➔ {new_status.upper()}")
                        print(f"✅ Oppdatert status for {f['name']} - {c['name']}")
                    else:
                        successes.append(f"✅ {f['name']} ({c['name']}): {new_status.upper()}")
                        print(f"   - {c['name']}: Ingen endring ({new_status.upper()})")

            except Exception as e:
                # Trekker ut kun første linje av feilmeldingen for å unngå massiv og stygg tekst i e-posten
                err_msg = str(e).split('\n')[0]
                warnings.append(f"🔥 {f['name']}: Feil under skraping: {err_msg}")
            finally:
                await page.close()
        await browser.close()
    
    await conn.close()
    send_report(changes, warnings, successes)
    print("🏁 Ferdig.")

if __name__ == "__main__":
    asyncio.run(run_daily_scraping())