use super::entities::{Permission, PermissionAction, ResourceType, Role};
use std::collections::HashSet;

pub struct PermissionChecker;

impl PermissionChecker {
    pub fn has_permission(
        roles: &[Role],
        action: PermissionAction,
        resource_type: ResourceType,
    ) -> bool {
        roles.iter().any(|role| {
            role.has_permission(action, resource_type)
                || role.has_permission(action, ResourceType::Global)
        })
    }

    pub fn effective_permissions(roles: &[Role]) -> HashSet<Permission> {
        roles
            .iter()
            .flat_map(|r| r.permissions.iter().copied())
            .collect()
    }
}