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import { createContext, type ReactNode, useContext } from 'react'
import type { AccessContext, Permission, UserRole } from '../types/tutorial'
// Default context value (no permissions)
const defaultAccessContext: AccessContext = {
userId: undefined,
roles: [],
isAuthenticated: false,
isAdmin: false,
canEdit: false,
canPublish: false,
canDelete: false,
}
// Create context
const AccessControlContext = createContext<AccessContext>(defaultAccessContext)
// Provider component
interface AccessControlProviderProps {
children: ReactNode
userId?: string
roles?: UserRole[]
isAuthenticated?: boolean
}
export function AccessControlProvider({
children,
userId,
roles = [],
isAuthenticated = false,
}: AccessControlProviderProps) {
// Calculate permissions based on roles
const permissions = roles.flatMap((role) => role.permissions)
// Check if user has admin role
const isAdmin = roles.some((role) => role.name === 'admin' || role.name === 'superuser')
// Check specific permissions
const canEdit =
isAdmin || permissions.some((p) => p.resource === 'tutorial' && p.actions.includes('update'))
const canPublish =
isAdmin || permissions.some((p) => p.resource === 'tutorial' && p.actions.includes('publish'))
const canDelete =
isAdmin || permissions.some((p) => p.resource === 'tutorial' && p.actions.includes('delete'))
const accessContext: AccessContext = {
userId,
roles,
isAuthenticated,
isAdmin,
canEdit,
canPublish,
canDelete,
}
return (
<AccessControlContext.Provider value={accessContext}>{children}</AccessControlContext.Provider>
)
}
// Hook to use access control
export function useAccessControl(): AccessContext {
const context = useContext(AccessControlContext)
if (!context) {
throw new Error('useAccessControl must be used within an AccessControlProvider')
}
return context
}
// Hook for conditional rendering based on permissions
export function usePermission(
resource: Permission['resource'],
action: Permission['actions'][number]
): boolean {
const { isAdmin, roles } = useAccessControl()
if (isAdmin) return true
return roles.some((role) =>
role.permissions.some(
(permission) => permission.resource === resource && permission.actions.includes(action)
)
)
}
// Hook for editor access specifically
export function useEditorAccess(): {
canAccessEditor: boolean
canEditTutorials: boolean
canPublishTutorials: boolean
canDeleteTutorials: boolean
reason?: string
} {
const { isAuthenticated, isAdmin, canEdit, canPublish, canDelete } = useAccessControl()
if (!isAuthenticated) {
return {
canAccessEditor: false,
canEditTutorials: false,
canPublishTutorials: false,
canDeleteTutorials: false,
reason: 'Authentication required',
}
}
const canAccessEditor = isAdmin || canEdit
return {
canAccessEditor,
canEditTutorials: canEdit,
canPublishTutorials: canPublish,
canDeleteTutorials: canDelete,
reason: canAccessEditor ? undefined : 'Insufficient permissions',
}
}
// Higher-order component for protecting routes
interface ProtectedComponentProps {
children: ReactNode
fallback?: ReactNode
requirePermissions?: {
resource: Permission['resource']
actions: Permission['actions']
}[]
}
export function ProtectedComponent({
children,
fallback = <div>Access denied</div>,
requirePermissions = [],
}: ProtectedComponentProps) {
const { isAuthenticated, roles, isAdmin } = useAccessControl()
if (!isAuthenticated) {
return <>{fallback}</>
}
if (isAdmin) {
return <>{children}</>
}
// Check if user has all required permissions
const hasAllPermissions = requirePermissions.every(({ resource, actions }) =>
roles.some((role) =>
role.permissions.some(
(permission) =>
permission.resource === resource &&
actions.every((action) => permission.actions.includes(action))
)
)
)
if (!hasAllPermissions) {
return <>{fallback}</>
}
return <>{children}</>
}
// Component for editor-specific protection
interface EditorProtectedProps {
children: ReactNode
fallback?: ReactNode
}
export function EditorProtected({ children, fallback }: EditorProtectedProps) {
const { canAccessEditor, reason } = useEditorAccess()
if (!canAccessEditor) {
return (
<>
{fallback || (
<div className="text-center p-8">
<h2 className="text-xl font-semibold mb-2">Access Restricted</h2>
<p className="text-gray-600">{reason}</p>
</div>
)}
</>
)
}
return <>{children}</>
}
// Dev mode provider (for development without auth)
export function DevAccessProvider({ children }: { children: ReactNode }) {
const devRoles: UserRole[] = [
{
id: 'dev-admin',
name: 'admin',
permissions: [
{
resource: 'tutorial',
actions: ['create', 'read', 'update', 'delete', 'publish'],
},
{
resource: 'step',
actions: ['create', 'read', 'update', 'delete'],
},
{
resource: 'user',
actions: ['read', 'update'],
},
{
resource: 'system',
actions: ['read'],
},
],
},
]
return (
<AccessControlProvider userId="dev-user" roles={devRoles} isAuthenticated={true}>
{children}
</AccessControlProvider>
)
}
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