#!/usr/bin/env python3
"""
sync-config-to-extension.py
Legge ~/.config/BastionGuard/mail.json e lo scrive nello storage
dell'estensione Thunderbird (IndexedDB/storage.local simulato via
il file di storage nativo delle WebExtension).

Thunderbird salva lo storage.local delle estensioni in:
  ~/.thunderbird/<profilo>/storage/default/moz-extension+++<uuid>/idb/
oppure come file JSON semplice in:
  ~/.thunderbird/<profilo>/browser-extension-data/<extension-id>/storage.js

Questo script scrive nel formato JSON semplice che Thunderbird
legge all'avvio.
"""

import json
import os
import sys
import glob

EXTENSION_ID = "bastionguard-mail@codelinsoft.it"
MAIL_CONFIG_PATH = os.path.expanduser("~/.config/BastionGuard/mail.json")
TB_DIR = os.path.expanduser("~/.thunderbird")


def find_tb_profile():
    profiles_ini = os.path.join(TB_DIR, "profiles.ini")
    if not os.path.exists(profiles_ini):
        raise FileNotFoundError(f"profiles.ini non trovato: {profiles_ini}")

    with open(profiles_ini) as f:
        content = f.read()

    # Trova il profilo Default
    lines = content.splitlines()
    in_install = False
    default_rel = None

    for line in lines:
        line = line.strip()
        if line.startswith("[Install"):
            in_install = True
        elif line.startswith("["):
            in_install = False
        elif in_install and line.startswith("Default="):
            default_rel = line.split("=", 1)[1]
            break

    if not default_rel:
        # Fallback: primo Path= trovato
        for line in lines:
            line = line.strip()
            if line.startswith("Path="):
                default_rel = line.split("=", 1)[1]
                break

    if not default_rel:
        raise ValueError("Nessun profilo trovato in profiles.ini")

    if os.path.isabs(default_rel):
        return default_rel
    return os.path.join(TB_DIR, default_rel)


def sync_config(profile_path):
    # Leggi mail.json
    if not os.path.exists(MAIL_CONFIG_PATH):
        print(f"[sync] mail.json non trovato: {MAIL_CONFIG_PATH}")
        return False

    with open(MAIL_CONFIG_PATH) as f:
        mail_config = json.load(f)

    # Percorso storage estensione Thunderbird
    storage_dir = os.path.join(profile_path, "browser-extension-data", EXTENSION_ID)
    os.makedirs(storage_dir, exist_ok=True)

    storage_file = os.path.join(storage_dir, "storage.js")

    # Formato: {"mailConfig": <contenuto mail.json>}
    storage_data = {"mailConfig": mail_config}

    with open(storage_file, "w") as f:
        json.dump(storage_data, f, indent=2)

    os.chmod(storage_file, 0o600)

    print(f"[sync] ✔ Configurazione sincronizzata in: {storage_file}")
    print(f"[sync]   Profili: {len(mail_config.get('profiles', []))}")
    print(f"[sync]   inject_signature: {mail_config.get('inject_signature', True)}")
    return True


if __name__ == "__main__":
    try:
        profile = find_tb_profile()
        print(f"[sync] Profilo Thunderbird: {profile}")
        sync_config(profile)
    except Exception as e:
        print(f"[sync] ERRORE: {e}", file=sys.stderr)
        sys.exit(1)