"""
Script per preparare Python embeddable con le dipendenze di MediaTrack
"""
import subprocess
import zipfile
import shutil
from pathlib import Path
import sys

# Configurazione
PYTHON_EMBED_ZIP = Path("python-3.11.9-embed-amd64.zip")  # Da scaricare
OUTPUT_DIR = Path("templates/python_embeddable")
OUTPUT_ZIP = Path("templates/python_embeddable.zip")

# Dipendenze MediaTrack (da requirements.txt o manualmente)
DEPENDENCIES = [
    "Flask>=2.0",
    "pywebview>=3.0",
    "requests",
    "rapidfuzz",
    "werkzeug",
]

def main():
    print("=" * 70)
    print("  Preparazione Python Embeddable per MediaTrack")
    print("=" * 70)

    # 1. Verifica che lo zip esista
    if not PYTHON_EMBED_ZIP.exists():
        print(f"\n❌ ERRORE: {PYTHON_EMBED_ZIP} non trovato!")
        print("\nScarica Python embeddable da:")
        print("https://www.python.org/downloads/windows/")
        print("\nCerca: 'Windows embeddable package (64-bit)'")
        print(f"Salva come: {PYTHON_EMBED_ZIP}")
        sys.exit(1)

    # 2. Estrai Python embeddable
    print(f"\n📦 Estrazione {PYTHON_EMBED_ZIP}...")
    if OUTPUT_DIR.exists():
        shutil.rmtree(OUTPUT_DIR)
    OUTPUT_DIR.mkdir(parents=True, exist_ok=True)

    with zipfile.ZipFile(PYTHON_EMBED_ZIP, 'r') as zip_ref:
        zip_ref.extractall(OUTPUT_DIR)
    print("✅ Estrazione completata")

    # 3. Abilita pip (modifica python311._pth)
    print("\n🔧 Abilitazione pip...")
    pth_files = list(OUTPUT_DIR.glob("python*._pth"))
    if pth_files:
        pth_file = pth_files[0]
        content = pth_file.read_text()
        # Decommenta import site
        content = content.replace("#import site", "import site")
        content += "\nLib\\site-packages\n"
        pth_file.write_text(content)
        print(f"✅ Modificato {pth_file.name}")

    # 4. Scarica get-pip.py
    print("\n📥 Download get-pip.py...")
    import urllib.request
    get_pip_url = "https://bootstrap.pypa.io/get-pip.py"
    get_pip_path = OUTPUT_DIR / "get-pip.py"

    try:
        urllib.request.urlretrieve(get_pip_url, get_pip_path)
        print("✅ get-pip.py scaricato")
    except Exception as e:
        print(f"⚠️  Errore download: {e}")
        print("Scarica manualmente da: https://bootstrap.pypa.io/get-pip.py")
        print(f"E salva in: {get_pip_path}")
        sys.exit(1)

    # 5. Installa pip
    print("\n🔨 Installazione pip...")
    python_exe = OUTPUT_DIR / "python.exe"
    result = subprocess.run(
        [str(python_exe), "get-pip.py"],
        cwd=str(OUTPUT_DIR),
        capture_output=True,
        text=True
    )
    if result.returncode == 0:
        print("✅ pip installato")
    else:
        print(f"⚠️  Warning: {result.stderr}")

    # 6. Installa dipendenze MediaTrack
    print("\n📦 Installazione dipendenze MediaTrack...")
    for dep in DEPENDENCIES:
        print(f"  - Installazione {dep}...")
        result = subprocess.run(
            [str(python_exe), "-m", "pip", "install", dep],
            cwd=str(OUTPUT_DIR),
            capture_output=True,
            text=True
        )
        if result.returncode == 0:
            print(f"    ✅ {dep}")
        else:
            print(f"    ⚠️  {dep}: {result.stderr[:100]}")

    # 7. Crea archivio zip finale
    print(f"\n📦 Creazione {OUTPUT_ZIP}...")
    if OUTPUT_ZIP.exists():
        OUTPUT_ZIP.unlink()

    shutil.make_archive(
        str(OUTPUT_ZIP.with_suffix('')),
        'zip',
        OUTPUT_DIR
    )
    print(f"✅ Creato: {OUTPUT_ZIP}")
    print(f"   Dimensione: {OUTPUT_ZIP.stat().st_size / 1024 / 1024:.1f} MB")

    # 8. Cleanup (opzionale)
    cleanup = input("\n🗑️  Rimuovere directory temporanea? (s/n): ")
    if cleanup.lower() == 's':
        shutil.rmtree(OUTPUT_DIR)
        print("✅ Directory temporanea rimossa")

    print("\n" + "=" * 70)
    print("🎉 Python embeddable pronto per il deploy!")
    print("=" * 70)
    print(f"\nFile creato: {OUTPUT_ZIP.absolute()}")
    print("\nProssimi passi:")
    print("1. Esegui: quick_deploy.bat")
    print("2. Python embeddable verrà deployato sul server")
    print("3. MediaTrack userà questo Python con tutte le sue dipendenze")

if __name__ == "__main__":
    main()