import re
import uuid
from datetime import datetime
from typing import Optional, Dict, Any


def _slugify(value: str) -> str:
    value = value.strip().lower()
    value = re.sub(r'[^a-z0-9\-_\s]+', '', value)
    value = re.sub(r'[\s]+', '-', value)
    return value


class Project:
    def __init__(
        self,
        client_id: str,
        name: str,
        status: str = 'Nouveau',
        start_date: Optional[str] = None,
        end_date: Optional[str] = None,
        description: str = '',
        budget: Optional[float] = None,
        id: Optional[str] = None,
        created_at: Optional[str] = None,
        updated_at: Optional[str] = None
    ):
        self.client_id = client_id
        self.name = name
        self.status = status
        self.start_date = start_date
        self.end_date = end_date
        self.description = description
        self.budget = budget
        self.id = id or f"{_slugify(name)}-{uuid.uuid4().hex[:8]}"
        now_iso = datetime.utcnow().isoformat()
        self.created_at = created_at or now_iso
        self.updated_at = updated_at or now_iso

    def to_dict(self) -> Dict[str, Any]:
        return {
            "id": self.id,
            "client_id": self.client_id,
            "name": self.name,
            "status": self.status,
            "start_date": self.start_date,
            "end_date": self.end_date,
            "description": self.description,
            "budget": self.budget,
            "created_at": self.created_at,
            "updated_at": self.updated_at,
        }

    @staticmethod
    def from_dict(data: Dict[str, Any]) -> 'Project':
        return Project(
            client_id=data.get("client_id"),
            name=data.get("name", ""),
            status=data.get("status", "Nouveau"),
            start_date=data.get("start_date"),
            end_date=data.get("end_date"),
            description=data.get("description", ""),
            budget=data.get("budget"),
            id=data.get("id"),
            created_at=data.get("created_at"),
            updated_at=data.get("updated_at"),
        )