from __future__ import annotations

from datetime import datetime
from typing import Optional, List, Dict, Any

from pydantic import BaseModel, Field, ConfigDict


class DiskInfo(BaseModel):
    """Informations sur un disque/partition"""
    mount_point: str
    filesystem: Optional[str] = None
    total_gb: float
    used_gb: float
    free_gb: float
    usage_percent: float


class NetworkInterface(BaseModel):
    """Informations sur une interface réseau"""
    name: str
    ip_address: Optional[str] = None
    mac_address: Optional[str] = None
    status: Optional[str] = None


class HostMetricsBase(BaseModel):
    """Schéma de base pour les métriques d'hôte"""
    metric_type: str = Field(..., description="Type de métrique (system_info, full, etc.)")
    
    # CPU
    cpu_count: Optional[int] = None
    cpu_model: Optional[str] = None
    cpu_cores: Optional[int] = None
    cpu_threads: Optional[int] = None
    cpu_threads_per_core: Optional[int] = None
    cpu_sockets: Optional[int] = None
    cpu_mhz: Optional[float] = None
    cpu_max_mhz: Optional[float] = None
    cpu_min_mhz: Optional[float] = None
    cpu_load_1m: Optional[float] = None
    cpu_load_5m: Optional[float] = None
    cpu_load_15m: Optional[float] = None
    cpu_usage_percent: Optional[float] = None
    cpu_temperature: Optional[float] = None
    
    # Memory
    memory_total_mb: Optional[int] = None
    memory_used_mb: Optional[int] = None
    memory_free_mb: Optional[int] = None
    memory_usage_percent: Optional[float] = None
    swap_total_mb: Optional[int] = None
    swap_used_mb: Optional[int] = None
    swap_usage_percent: Optional[float] = None
    
    # Disk
    disk_info: Optional[List[Dict[str, Any]]] = None
    disk_devices: Optional[List[Dict[str, Any]]] = None
    disk_root_total_gb: Optional[float] = None
    disk_root_used_gb: Optional[float] = None
    disk_root_usage_percent: Optional[float] = None

    # Storage stacks
    lvm_info: Optional[Dict[str, Any]] = None
    zfs_info: Optional[Dict[str, Any]] = None
    
    # System info
    os_name: Optional[str] = None
    os_version: Optional[str] = None
    kernel_version: Optional[str] = None
    hostname: Optional[str] = None
    uptime_seconds: Optional[int] = None
    uptime_human: Optional[str] = None
    
    # Network
    network_info: Optional[List[Dict[str, Any]]] = None


class HostMetricsCreate(HostMetricsBase):
    """Schéma pour créer des métriques"""
    host_id: str
    raw_data: Optional[Dict[str, Any]] = None
    collection_source: Optional[str] = None
    collection_duration_ms: Optional[int] = None
    error_message: Optional[str] = None


class HostMetricsOut(HostMetricsBase):
    """Schéma de sortie pour les métriques"""
    id: int
    host_id: str
    collected_at: datetime
    created_at: datetime
    collection_source: Optional[str] = None
    collection_duration_ms: Optional[int] = None
    error_message: Optional[str] = None

    model_config = ConfigDict(from_attributes=True)


class HostMetricsSummary(BaseModel):
    """Résumé des métriques pour affichage dans la carte d'hôte"""
    host_id: str
    host_name: Optional[str] = None
    last_collected: Optional[datetime] = None
    
    # Résumé CPU
    cpu_usage_percent: Optional[float] = None
    cpu_load_1m: Optional[float] = None
    cpu_temperature: Optional[float] = None
    cpu_model: Optional[str] = None
    cpu_count: Optional[int] = None
    cpu_cores: Optional[int] = None
    cpu_threads: Optional[int] = None
    cpu_max_mhz: Optional[float] = None
    
    # Résumé mémoire
    memory_usage_percent: Optional[float] = None
    memory_total_mb: Optional[int] = None
    memory_used_mb: Optional[int] = None
    
    # Résumé disque (partition racine)
    disk_root_usage_percent: Optional[float] = None
    disk_root_total_gb: Optional[float] = None
    disk_root_used_gb: Optional[float] = None
    disk_info: Optional[List[Dict[str, Any]]] = None
    disk_devices: Optional[List[Dict[str, Any]]] = None

    # Storage stacks
    lvm_info: Optional[Dict[str, Any]] = None
    zfs_info: Optional[Dict[str, Any]] = None
    
    # Système
    os_name: Optional[str] = None
    uptime_human: Optional[str] = None
    
    # Statut de la collecte
    collection_status: str = "unknown"  # success, failed, pending, unknown
    error_message: Optional[str] = None


class BuiltinPlaybookDefinition(BaseModel):
    """Définition d'un builtin playbook"""
    id: str = Field(..., description="Identifiant unique du builtin playbook")
    name: str = Field(..., description="Nom affiché")
    description: str = Field(..., description="Description du playbook")
    playbook_file: str = Field(..., description="Nom du fichier playbook Ansible")
    category: str = Field(..., description="Catégorie (metrics, maintenance, etc.)")
    icon: str = Field(default="fas fa-cog", description="Icône FontAwesome")
    color: str = Field(default="blue", description="Couleur du bouton")
    collect_metrics: bool = Field(default=False, description="Si true, les résultats sont stockés comme métriques")
    schedule_enabled: bool = Field(default=True, description="Peut être planifié")
    visible_in_ui: bool = Field(default=True, description="Visible dans l'interface")


class BuiltinPlaybookExecutionRequest(BaseModel):
    """Requête d'exécution d'un builtin playbook"""
    builtin_id: str = Field(..., description="ID du builtin playbook")
    target: str = Field(..., description="Cible (host ou groupe)")
    extra_vars: Optional[Dict[str, Any]] = None


class BuiltinPlaybookExecutionResult(BaseModel):
    """Résultat d'exécution d'un builtin playbook"""
    success: bool
    builtin_id: str
    target: str
    execution_time: float
    metrics_saved: bool = False
    hosts_processed: int = 0
    error: Optional[str] = None
    log_path: Optional[str] = None