#!/usr/bin/env python3
"""
Full automated setup and demo test for MorphGuard without invoking separate shell scripts.
Usage: python3 scripts/full_run.py [--base-url URL] [--verbose]
"""
import os
import sys
import subprocess
import json
import time
import shutil
import argparse
import requests

def run_cmd(cmd, verbose=False):
    if verbose:
        print(f"[CMD] {' '.join(cmd)}")
    result = subprocess.run(cmd, stdout=subprocess.PIPE if not verbose else None,
                             stderr=subprocess.STDOUT, text=True)
    if result.returncode != 0:
        print(f"❌ Command failed (exit {result.returncode}): {' '.join(cmd)}")
        if not verbose and result.stdout:
            print(result.stdout)
        sys.exit(result.returncode)
    if not verbose and result.stdout:
        print(result.stdout)
    return result

def install_requirements(verbose=False):
    run_cmd([sys.executable, '-m', 'pip', 'install', 'psycopg2-binary', 'opencv-python',
             'dronekit', 'flask-socketio', 'open3d'], verbose)

def check_server(session, base_url):
    try:
        r = session.get(base_url, timeout=5)
        if r.status_code != 200:
            print(f"❌ Server responded {r.status_code}, expected 200.")
            sys.exit(1)
        print(f"✔ Server is up at {base_url}")
    except Exception as e:
        print(f"❌ Error connecting to server at {base_url}: {e}")
        sys.exit(1)

def login_admin(session, base_url):
    login_url = f"{base_url}/login"
    data = {'username': 'admin', 'password': 'morph@123'}
    r = session.post(login_url, data=data)
    if r.status_code != 200 or 'Invalid credentials' in r.text:
        print("❌ Admin login failed.")
        sys.exit(1)
    print("✔ Logged in as admin.")

def write_db_config():
    cfg = {
        'DB_NAME': 'morphguard',
        'DB_USER': 'morphguard',
        'DB_PASS': 'morphguard',
        'DB_HOST': '127.0.0.1',
        'DB_PORT': 5432
    }
    with open('db_config.json', 'w') as f:
        json.dump(cfg, f, indent=2)
    print("✔ Wrote db_config.json")

def install_timescaledb(verbose=False):
    if not shutil.which('psql'):
        if shutil.which('apt-get'):
            run_cmd(['bash', 'scripts/install_timescaledb.sh'], verbose)
        else:
            print("⚠️  psql not found, skipping TimescaleDB setup.")
    else:
        print("✔ psql found, assuming TimescaleDB ready.")

def api_call(session, base_url, method, endpoint, payload=None):
    url = f"{base_url}{endpoint}"
    if method.lower() == 'get':
        r = session.get(url)
    else:
        r = session.post(url, json=payload)
    try:
        data = r.json()
    except ValueError:
        data = r.text
    print(f"{endpoint} -> {data}")
    if r.status_code >= 400:
        print(f"❌ API error {r.status_code} at {endpoint}")
        sys.exit(1)
    return data

def fetch_datasets(session, base_url):
    keys = {
        'access_key': os.getenv('UNSPLASH_ACCESS_KEY', ''),
        'secret_key': os.getenv('UNSPLASH_SECRET_KEY', ''),
        'pexels_key': os.getenv('PEXELS_API_KEY', ''),
        'pixabay_key': os.getenv('PIXABAY_API_KEY', '')
    }
    api_call(session, base_url, 'post', '/api/setup/keys', keys)
    api_call(session, base_url, 'post', '/api/setup/fetch_utkface', {'count': 1000, 'split': 'train'})
    api_call(session, base_url, 'post', '/api/setup/fetch_lfw', {'count': 500, 'split': 'train'})
    if keys['pexels_key']:
        api_call(session, base_url, 'post', '/api/setup/fetch_pexels', {'count': 500, 'split': 'train'})
    if keys['pixabay_key']:
        api_call(session, base_url, 'post', '/api/setup/fetch_pixabay', {'count': 500, 'split': 'train'})
    api_call(session, base_url, 'post', '/api/setup/fetch_real', {'count': 500, 'split': 'train'})
    api_call(session, base_url, 'post', '/api/setup/generate_morphs', {'count': 4000, 'split': 'train'})

def train_detector(session, base_url):
    # Send empty JSON payload to initiate detector training
    api_call(session, base_url, 'post', '/api/train/detector', {})
    print("✔ Training started.")

def test_cameras(session, base_url):
    try:
        import cv2
    except ImportError:
        print("⚠️  OpenCV not installed, skipping camera test.")
        return
    cams = []
    for i in range(4):
        cap = cv2.VideoCapture(i)
        if cap.isOpened(): cams.append((i, cap))
        else: cap.release()
    frames = []
    for idx, cap in cams:
        ret, frame = cap.read()
        cap.release()
        if ret:
            _, buf = cv2.imencode('.jpg', frame)
            frames.append((idx, buf.tobytes()))
    if not frames:
        print("⚠️  No webcams detected for test.")
        return
    for idx, imgb in frames:
        files = {'image': (f'cam{idx}.jpg', imgb, 'image/jpeg')}
        r = session.post(f"{base_url}/api/detect", files=files)
        print(f"Camera {idx} detect: {r.json()}")
    idx, imgb = frames[0]
    files = {'image': (f'cam{idx}.jpg', imgb, 'image/jpeg')}
    r = session.post(f"{base_url}/api/demorph", files=files)
    print(f"Camera {idx} demorph: {r.json()}")

def main():
    parser = argparse.ArgumentParser(description="Full MorphGuard automator")
    parser.add_argument('--base-url', default='http://localhost:5000')
    parser.add_argument('--verbose', action='store_true')
    args = parser.parse_args()
    session = requests.Session()
    install_requirements(args.verbose)
    check_server(session, args.base_url)
    login_admin(session, args.base_url)
    write_db_config()
    # install_timescaledb(args.verbose)
    fetch_datasets(session, args.base_url)
    train_detector(session, args.base_url)
    time.sleep(2)
    test_cameras(session, args.base_url)
    print("✅ Full run complete.")

if __name__ == '__main__':
    main()