import os
from pathlib import Path
from typing import Dict, Any, List, Optional
from pydantic import BaseModel, Field, field_validator
from pydantic_settings import BaseSettings

BASE_DIR = Path(__file__).resolve().parent.parent
DATA_DIR = Path(os.getenv("HUB_DATA_DIR", BASE_DIR / "data"))
PERSONAS_DIR = DATA_DIR / "personas"
CLONES_DIR = DATA_DIR / "clones"
DB_PATH = DATA_DIR / "hub.db"

class UniverseConfig(BaseModel):
    id: str
    name: str
    tagline: str
    description: str
    backend_url: str
    scope: str
    accent_token: str
    icon: str
    persona_file: str
    enabled: bool = True
    supports_files: bool = False
    files_url: Optional[str] = None
    is_external_app: bool = False

class Settings(BaseSettings):
    app_name: str = "Hermes Hub"
    host: str = "0.0.0.0"
    port: int = 8080
    debug: bool = False
    
    # NAS & VPS Network Configurations
    nas_tailscale_ip: str = os.getenv("NAS_TAILSCALE_IP", "100.86.197.88")
    vps_tailscale_ip: str = os.getenv("VPS_TAILSCALE_IP", "100.94.90.119")
    
    # Backends
    hermes_tt_url: str = os.getenv("HERMES_TT_URL", "http://100.86.197.88:3010")
    hermes_nyora_url: str = os.getenv("HERMES_NYORA_URL", "http://100.86.197.88:3020")
    hermes_perso_url: str = os.getenv("HERMES_PERSO_URL", "http://100.86.197.88:3031")
    hermes_nabil_url: str = os.getenv("HERMES_NABIL_URL", "http://hermes-nabil:9119")
    hermes_dsh_url: str = os.getenv("HERMES_DSH_URL", "http://dsh-vps:3080")
    dsh_filebrowser_url: str = os.getenv("DSH_FILEBROWSER_URL", "http://dsh-vps-filebrowser:8080")
    
    # Backend Passwords
    hermes_tt_password: str = os.getenv("HERMES_TT_PASSWORD", "XiEdCtyWETbzpQ7dxrRyvAYu")
    hermes_nyora_password: str = os.getenv("HERMES_NYORA_PASSWORD", "juoKPfPGuo39wKCn9WJ0kY0_")
    hermes_perso_password: str = os.getenv("HERMES_PERSO_PASSWORD", "-6Q12oViKsgZgIL82Kspa_dV")
    hermes_nabil_username: str = os.getenv("HERMES_NABIL_USERNAME", "nabil")
    hermes_nabil_password: str = os.getenv("HERMES_NABIL_PASSWORD", "NabilMasterHermes2026!")
    
    # Hub Secret — OBLIGATOIRE, aucun fallback codé en dur (Fail-Fast au démarrage)
    hub_secret: str = Field(..., min_length=16, description="Clé secrète maîtresse requise pour Hermes Hub")
    
    @field_validator("hub_secret")
    @classmethod
    def validate_secret(cls, v: str) -> str:
        if not v or v.strip() == "" or "change-this" in v or "hermes-hub-master-key-2026" in v:
            raise ValueError("HUB_SECRET doit être défini avec une clé sécurisée valide et ne doit pas utiliser de valeur par défaut.")
        return v
    
    class Config:
        env_file = ".env"
        extra = "ignore"

try:
    settings = Settings()
except Exception as e:
    if "HUB_SECRET" in os.environ:
        raise e
    settings = None

UNIVERSES: Dict[str, UniverseConfig] = {
    "tt": UniverseConfig(
        id="tt",
        name="Tunisie Telecom",
        tagline="Achats Zone Sud",
        description="Direction Régionale — Marchés, RLA & Appels d'Offres",
        backend_url=os.getenv("HERMES_TT_URL", "http://100.86.197.88:3010"),
        scope="tt",
        accent_token="--accent-tt",
        icon="briefcase",
        persona_file="tt.yaml",
        supports_files=False,
        is_external_app=False
    ),
    "nyora": UniverseConfig(
        id="nyora",
        name="Nyora",
        tagline="Venture & Dr Nexum",
        description="Projets entrepreneuriaux, conseil & veille stratégique",
        backend_url=os.getenv("HERMES_NYORA_URL", "http://100.86.197.88:3020"),
        scope="nyora",
        accent_token="--accent-nyora",
        icon="sparkles",
        persona_file="nyora.yaml",
        supports_files=False,
        is_external_app=False
    ),
    "perso": UniverseConfig(
        id="perso",
        name="Personnel",
        tagline="Famille & Santé",
        description="Espace privé, santé familiale, gestion du quotidien",
        backend_url=os.getenv("HERMES_PERSO_URL", "http://100.86.197.88:3031"),
        scope="perso",
        accent_token="--accent-perso",
        icon="home",
        persona_file="perso.yaml",
        supports_files=False,
        is_external_app=False
    ),
    "nabil": UniverseConfig(
        id="nabil",
        name="Nabil Master",
        tagline="Orchestration & Code",
        description="Master Agent VPS, exécution de code & supervision DSH",
        backend_url=os.getenv("HERMES_NABIL_URL", "http://hermes-nabil:9119"),
        scope="nabil",
        accent_token="--accent-nabil",
        icon="terminal",
        persona_file="nabil.yaml",
        supports_files=True,
        files_url=os.getenv("DSH_FILEBROWSER_URL", "http://dsh-vps-filebrowser:8080"),
        is_external_app=False
    ),
    "dsh": UniverseConfig(
        id="dsh",
        name="DeepSeek Harness",
        tagline="DSH Autonomous Agent",
        description="Plateforme DeepSeek Harness : agents autonomes, sous-agents, trajectoires et tâches",
        backend_url=os.getenv("HERMES_DSH_URL", "http://dsh-vps:3080"),
        scope="dsh",
        accent_token="--accent-dsh",
        icon="cpu",
        persona_file="dsh.yaml",
        supports_files=False,
        is_external_app=True
    )
}

def get_universe(universe_id: str) -> UniverseConfig:
    if universe_id not in UNIVERSES:
        raise KeyError(f"Universe '{universe_id}' does not exist.")
    return UNIVERSES[universe_id]