"""Auth data models."""

from dataclasses import dataclass, field
from typing import Any, Dict, List, Optional

ROLES = ("admin", "director", "user")


@dataclass
class UserContext:
    user_id: int
    username: str
    role: str
    org_id: int
    org_slug: str
    org_name: str
    project_slugs: List[str] = field(default_factory=list)  # назначенные org-проекты
    owned_project_slugs: List[str] = field(default_factory=list)  # личные проекты

    @property
    def accessible_project_slugs(self) -> set[str]:
        if self.has_all_projects_access:
            return set()
        return set(self.project_slugs) | set(self.owned_project_slugs)

    @property
    def is_admin(self) -> bool:
        return self.role == "admin"

    @property
    def is_director(self) -> bool:
        return self.role == "director"

    @property
    def has_all_projects_access(self) -> bool:
        """Admin and director see all org projects and global RAG search."""
        return self.role in ("admin", "director")

    def can_access_project(self, project_slug: Optional[str]) -> bool:
        if not project_slug:
            return True
        if self.has_all_projects_access:
            return True
        return project_slug in self.accessible_project_slugs

    def filter_projects(self, projects: List[str]) -> List[str]:
        if self.has_all_projects_access:
            return projects
        allowed = self.accessible_project_slugs
        return [p for p in projects if p in allowed]

    def can_global_search(self) -> bool:
        return self.has_all_projects_access

    def can_see_task(self, task: Dict[str, Any]) -> bool:
        """Whether realtime/API task updates for this task may be shown to the user."""
        if task.get("org_slug") != self.org_slug:
            return False
        if self.has_all_projects_access:
            return True
        return task.get("user_id") == self.user_id