feat(social): add profile poster, social handles, remove X

backend/alembic/versions/409112776ded_add_social_handles.py

@@ -0,0 +1,45 @@
+"""add_social_handles
+
+Revision ID: 409112776ded
+Revises: b1ca95289d88
+Create Date: 2025-12-29 20:46:30.443972
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel.sql.sqltypes
+
+
+# revision identifiers, used by Alembic.
+revision: str = '409112776ded'
+down_revision: Union[str, Sequence[str], None] = 'b1ca95289d88'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('bluesky_handle', sqlmodel.sql.sqltypes.AutoString(), nullable=True))
+        batch_op.add_column(sa.Column('mastodon_handle', sqlmodel.sql.sqltypes.AutoString(), nullable=True))
+        batch_op.add_column(sa.Column('instagram_handle', sqlmodel.sql.sqltypes.AutoString(), nullable=True))
+        batch_op.add_column(sa.Column('x_handle', sqlmodel.sql.sqltypes.AutoString(), nullable=True))
+        batch_op.add_column(sa.Column('location', sqlmodel.sql.sqltypes.AutoString(), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.drop_column('location')
+        batch_op.drop_column('x_handle')
+        batch_op.drop_column('instagram_handle')
+        batch_op.drop_column('mastodon_handle')
+        batch_op.drop_column('bluesky_handle')
+
+    # ### end Alembic commands ###

backend/alembic/versions/ad5a56553d20_remove_x_handle.py

@@ -0,0 +1,36 @@
+"""remove_x_handle
+
+Revision ID: ad5a56553d20
+Revises: 409112776ded
+Create Date: 2025-12-29 21:01:08.011913
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'ad5a56553d20'
+down_revision: Union[str, Sequence[str], None] = '409112776ded'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.drop_column('x_handle')
+
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('x_handle', sa.VARCHAR(), nullable=True))
+
+    # ### end Alembic commands ###

backend/models.py

@@ -423,6 +423,12 @@ class User(SQLModel, table=True):
     streak_days: int = Field(default=0, description="Consecutive days active")
     last_activity: Optional[datetime] = Field(default=None)
     
+    # Social Identity
+    bluesky_handle: Optional[str] = Field(default=None)
+    mastodon_handle: Optional[str] = Field(default=None)
+    instagram_handle: Optional[str] = Field(default=None)
+    location: Optional[str] = Field(default=None, description="User's local scene/city")
+
     # Custom Titles & Flair (tracker forum style)
     custom_title: Optional[str] = Field(default=None, description="Custom title chosen by user")
     title_color: Optional[str] = Field(default=None, description="Hex color for username display")

backend/routers/users.py

@@ -4,7 +4,7 @@ from sqlmodel import Session, select, func
 from pydantic import BaseModel
 from database import get_session
 from models import User, Review, Attendance, Group, GroupMember, Show, UserPreferences, Profile
-from schemas import UserRead, ReviewRead, ShowRead, GroupRead, UserPreferencesUpdate
+from schemas import UserRead, ReviewRead, ShowRead, GroupRead, UserPreferencesUpdate, PublicProfileRead, SocialHandles, HeadlinerBand
 from auth import get_current_user
 
 router = APIRouter(prefix="/users", tags=["users"])
@@ -402,6 +402,74 @@ def delete_my_account(
 
 # --- Dynamic ID Routes (must be last to avoid conflicts with /me, /avatar) ---
 
+@router.get("/profile/{username}", response_model=PublicProfileRead)
+def get_public_profile(username: str, session: Session = Depends(get_session)):
+    """Get rich public profile for poster view"""
+    # 1. Find profile by username
+    profile = session.exec(select(Profile).where(Profile.username == username)).first()
+    
+    # Fallback: check if username matches a user email prefix (legacy/fallback)
+    # or just 404. Let's start with strict Profile lookup.
+    if not profile:
+        # Try to find by User ID if it looks like an int? No, username is string.
+        raise HTTPException(status_code=404, detail="User not found")
+    
+    user = session.get(User, profile.user_id)
+    if not user:
+         raise HTTPException(status_code=404, detail="User not found")
+
+    # 2. Get Stats
+    attendance_count = session.exec(select(func.count(Attendance.id)).where(Attendance.user_id == user.id)).one()
+    review_count = session.exec(select(func.count(Review.id)).where(Review.user_id == user.id)).one()
+    unique_venues = session.exec(select(func.count(func.distinct(Show.venue_id))).join(Attendance).where(Attendance.user_id == user.id)).one()
+
+    # 3. Get Headliners (Preferences)
+    headliners = []
+    supporting = []
+    
+    # Sort prefs by priority/tier
+    # We need to eager load vertical 
+    if user.vertical_preferences:
+        for pref in user.vertical_preferences:
+            band_data = HeadlinerBand(
+                name=pref.vertical.name,
+                slug=pref.vertical.slug,
+                tier=pref.tier,
+                logo_url=pref.vertical.logo_url
+            )
+            if pref.tier == "headliner":
+                headliners.append(band_data)
+            else:
+                supporting.append(band_data)
+    
+    # Social Handles
+    socials = SocialHandles(
+        bluesky=user.bluesky_handle,
+        mastodon=user.mastodon_handle,
+        instagram=user.instagram_handle
+    )
+
+    return PublicProfileRead(
+        id=user.id,
+        username=profile.username,
+        display_name=profile.display_name or profile.username,
+        bio=user.bio,
+        avatar=user.avatar,
+        avatar_bg_color=user.avatar_bg_color,
+        avatar_text=user.avatar_text,
+        location=user.location,
+        social_handles=socials,
+        headliners=headliners,
+        supporting_acts=supporting,
+        stats={
+            "shows_attended": attendance_count,
+            "reviews_written": review_count,
+            "venues_visited": unique_venues
+        },
+        joined_at=user.joined_at
+    )
+
+
 @router.get("/{user_id}", response_model=UserRead)
 def get_user_public(user_id: int, session: Session = Depends(get_session)):
     """Get public user profile"""

backend/schemas.py

@@ -409,3 +409,38 @@ class ReactionRead(ReactionBase):
     id: int
     user_id: int
     created_at: datetime
+
+# --- Profile Schemas ---
+
+class SocialHandles(SQLModel):
+    bluesky: Optional[str] = None
+    mastodon: Optional[str] = None
+    instagram: Optional[str] = None
+
+class HeadlinerBand(SQLModel):
+    name: str
+    slug: str
+    tier: str # headliner, main_stage, supporting
+    logo_url: Optional[str] = None 
+
+class PublicProfileRead(SQLModel):
+    id: int
+    username: str
+    display_name: str
+    bio: Optional[str] = None
+    avatar: Optional[str] = None
+    avatar_bg_color: Optional[str] = None
+    avatar_text: Optional[str] = None
+    location: Optional[str] = None
+    
+    # Socials
+    social_handles: SocialHandles
+    
+    # The Lineup
+    headliners: List[HeadlinerBand]
+    supporting_acts: List[HeadlinerBand]
+    
+    # Stats
+    stats: Dict[str, int]
+    
+    joined_at: datetime

frontend/app/layout.tsx

@@ -8,6 +8,7 @@ import { AuthProvider } from "@/contexts/auth-context";
 import { VerticalProvider } from "@/contexts/vertical-context";
 import { ThemeProvider } from "@/components/theme-provider";
 import { Footer } from "@/components/layout/footer";
+import { Toaster } from "@/components/ui/toaster";
 import Script from "next/script";
 
 const spaceGrotesk = Space_Grotesk({
@@ -59,6 +60,7 @@ export default function RootLayout({
                   {children}
                 </main>
                 <Footer />
+                <Toaster />
               </PreferencesProvider>
             </VerticalProvider>
           </AuthProvider>

frontend/app/profile/[username]/page.tsx

@@ -0,0 +1,41 @@
+
+import { getApiUrl } from "@/lib/api-config"
+import { ProfilePoster } from "@/components/profile/profile-poster"
+import { notFound } from "next/navigation"
+
+interface ProfilePageProps {
+    params: Promise<{
+        username: string
+    }>
+}
+
+async function getProfile(username: string) {
+    try {
+        const res = await fetch(`${getApiUrl()}/users/profile/${username}`, {
+            next: { revalidate: 60 } // Cache for 1 minute
+        })
+
+        if (res.status === 404) return null
+        if (!res.ok) throw new Error("Failed to fetch profile")
+
+        return res.json()
+    } catch (error) {
+        console.error("Profile fetch error:", error)
+        return null
+    }
+}
+
+export default async function ProfilePage({ params }: ProfilePageProps) {
+    const { username } = await params
+    const profile = await getProfile(username)
+
+    if (!profile) {
+        notFound()
+    }
+
+    return (
+        <div className="container py-8">
+            <ProfilePoster profile={profile} />
+        </div>
+    )
+}

frontend/components/layout/navbar.tsx

@@ -96,7 +96,7 @@ export function Navbar() {
                                             {user.email}
                                         </DropdownMenuItem>
                                         <DropdownMenuSeparator />
-                                        <Link href="/profile">
+                                        <Link href={`/profile/${user.profile?.username || user.username || user.id}`}>
                                             <DropdownMenuItem>Profile</DropdownMenuItem>
                                         </Link>
                                         <Link href="/settings">
@@ -189,7 +189,7 @@ export function Navbar() {
                                         </Link>
                                     )}
                                     <Link
-                                        href="/profile"
+                                        href={`/profile/${user.profile?.username || user.username || user.id}`}
                                         className="px-3 py-2 rounded-md hover:bg-muted transition-colors"
                                         onClick={() => setMobileMenuOpen(false)}
                                     >

frontend/components/profile/profile-poster.tsx

@@ -0,0 +1,207 @@
+"use client"
+
+import { PublicProfileRead } from "@/lib/types" // We'll need to define this or import generic
+import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar"
+import { Badge } from "@/components/ui/badge"
+import { Button } from "@/components/ui/button"
+import { Card } from "@/components/ui/card"
+import { Separator } from "@/components/ui/separator"
+import { MapPin, CalendarDays, Ticket, Music2, Share2 } from "lucide-react"
+import Link from "next/link"
+
+// Temporary type definition until we sync shared types
+interface HeadlinerBand {
+    name: string
+    slug: string
+    tier: string
+    logo_url?: string | null
+}
+
+interface SocialHandles {
+    bluesky?: string | null
+    mastodon?: string | null
+    instagram?: string | null
+}
+
+interface ProfilePosterProps {
+    profile: any // Typing loosely first to get the visual structure up
+}
+
+export function ProfilePoster({ profile }: ProfilePosterProps) {
+    const { username, display_name, bio, avatar, avatar_bg_color, location, social_handles, headliners, supporting_acts, stats, joined_at } = profile
+
+    // Poster Date (Joined At)
+    const memberSince = new Date(joined_at).toLocaleDateString('en-US', { month: 'long', year: 'numeric' })
+
+    return (
+        <div className="max-w-4xl mx-auto space-y-8">
+            {/* THE POSTER */}
+            <div className="relative overflow-hidden rounded-xl border bg-card text-card-foreground shadow-2xl">
+                {/* Background Texture/Gradient */}
+                <div className="absolute inset-0 z-0 bg-gradient-to-br from-background via-background to-primary/5 opacity-50" />
+                <div className="absolute inset-0 z-0 bg-[url('/noise.png')] opacity-[0.03] mix-blend-overlay" />
+
+                <div className="relative z-10 p-8 md:p-12 flex flex-col md:flex-row gap-12 items-start md:items-center">
+
+                    {/* LEFT: The "Lineup" (Typography Hierarchy) */}
+                    <div className="flex-1 text-center md:text-left space-y-8 w-full">
+
+                        {/* Top Billing: User Name */}
+                        <div className="space-y-2">
+                            <h1 className="text-5xl md:text-7xl font-black tracking-tighter uppercase leading-none bg-clip-text text-transparent bg-gradient-to-b from-foreground to-foreground/70 filter drop-shadow-sm">
+                                {display_name}
+                            </h1>
+                            <p className="text-xl md:text-2xl text-muted-foreground font-light tracking-widest uppercase">
+                                Presents
+                            </p>
+                        </div>
+
+                        <Separator className="bg-primary/20" />
+
+                        {/* Headliners */}
+                        {headliners && headliners.length > 0 ? (
+                            <div className="flex flex-wrap justify-center md:justify-start gap-x-6 gap-y-2">
+                                {headliners.map((band: HeadlinerBand) => (
+                                    <Link key={band.slug} href={`/${band.slug}`} className="hover:scale-105 transition-transform">
+                                        <span className="text-3xl md:text-5xl font-bold tracking-tight text-primary hover:text-primary/80 uppercase">
+                                            {band.name}
+                                        </span>
+                                    </Link>
+                                ))}
+                            </div>
+                        ) : (
+                            <div className="text-3xl font-bold text-muted-foreground/30 uppercase opacity-50 py-4">
+                                No Headliners Announced
+                            </div>
+                        )}
+
+                        {/* Supporting Acts */}
+                        {supporting_acts && supporting_acts.length > 0 && (
+                            <div className="flex flex-wrap justify-center md:justify-start gap-x-4 gap-y-1 pt-4">
+                                {supporting_acts.map((band: HeadlinerBand) => (
+                                    <Link key={band.slug} href={`/${band.slug}`}>
+                                        <span className="text-lg md:text-2xl font-medium text-foreground/80 hover:text-foreground uppercase">
+                                            {band.name}
+                                        </span>
+                                    </Link>
+                                ))}
+                            </div>
+                        )}
+
+                        {/* Location / Date Line */}
+                        <div className="flex flex-wrap items-center justify-center md:justify-start gap-4 text-sm font-mono text-muted-foreground pt-6 uppercase tracking-wider">
+                            {location && (
+                                <span className="flex items-center gap-1">
+                                    <MapPin className="w-4 h-4" /> {location}
+                                </span>
+                            )}
+                            <span className="flex items-center gap-1">
+                                <CalendarDays className="w-4 h-4" /> Est. {memberSince}
+                            </span>
+                        </div>
+
+                    </div>
+
+                    {/* RIGHT: The "Pass" (Avatar) */}
+                    <div className="flex-shrink-0 mx-auto md:mx-0">
+                        <div className="relative group perspective-1000">
+                            {/* Lanyard String Mockup */}
+                            <div className="absolute -top-32 left-1/2 -translate-x-1/2 w-4 h-32 bg-primary/20 z-0 hidden md:block" />
+
+                            <div className="relative w-64 h-80 bg-black rounded-xl border-4 border-primary/20 shadow-2xl overflow-hidden flex flex-col transform transition-transform group-hover:rotate-y-12 duration-500">
+                                {/* Pass Header */}
+                                <div className="h-12 bg-primary/90 flex items-center justify-center">
+                                    <span className="font-bold text-primary-foreground tracking-[0.2em] text-xs">ALL ACCESS</span>
+                                </div>
+
+                                {/* Pass Image */}
+                                <div className="flex-1 relative bg-muted">
+                                    {avatar ? (
+                                        <img src={avatar} alt={username} className="w-full h-full object-cover" />
+                                    ) : (
+                                        <div className="w-full h-full flex items-center justify-center bg-zinc-900 text-6xl font-bold text-zinc-700" style={{ backgroundColor: avatar_bg_color || '#333' }}>
+                                            {profile.avatar_text || username.substring(0, 2).toUpperCase()}
+                                        </div>
+                                    )}
+                                </div>
+
+                                {/* Pass Footer */}
+                                <div className="h-16 bg-white/5 backdrop-blur-md p-2 flex flex-col items-center justify-center gap-1">
+                                    <span className="font-mono text-xs text-muted-foreground">@{username}</span>
+                                    <div className="flex gap-2 text-xs opacity-50">
+                                        <div className="w-16 h-4 bg-foreground/20 rounded-sm" /> {/* Barcode mockup */}
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+
+                </div>
+            </div>
+
+            {/* LOWER BIO SECTION */}
+            <div className="grid grid-cols-1 md:grid-cols-3 gap-8">
+                {/* Stats Card */}
+                <Card className="p-6 space-y-4">
+                    <h3 className="font-mono text-sm text-muted-foreground uppercase">Tour Stats</h3>
+                    <div className="space-y-4">
+                        <div className="flex items-center justify-between">
+                            <span className="flex items-center gap-2"><Ticket className="w-4 h-4" /> Shows</span>
+                            <span className="font-bold text-xl">{stats.shows_attended}</span>
+                        </div>
+                        <Separator />
+                        <div className="flex items-center justify-between">
+                            <span className="flex items-center gap-2"><MapPin className="w-4 h-4" /> Venues</span>
+                            <span className="font-bold text-xl">{stats.venues_visited}</span>
+                        </div>
+                        <Separator />
+                        <div className="flex items-center justify-between">
+                            <span className="flex items-center gap-2"><Music2 className="w-4 h-4" /> Reviews</span>
+                            <span className="font-bold text-xl">{stats.reviews_written}</span>
+                        </div>
+                    </div>
+                </Card>
+
+                {/* Bio & Socials */}
+                <Card className="md:col-span-2 p-6 flex flex-col justify-between gap-6">
+                    <div className="space-y-4">
+                        <h3 className="font-mono text-sm text-muted-foreground uppercase">About</h3>
+                        <p className="text-lg leading-relaxed whitespace-pre-wrap">
+                            {bio || "This fan hasn't written a bio yet. They're probably at a show."}
+                        </p>
+                    </div>
+
+                    <div className="flex flex-wrap gap-3">
+                        {social_handles.bluesky && (
+                            <Button variant="outline" size="sm" asChild>
+                                <a href={`https://bsky.app/profile/${social_handles.bluesky}`} target="_blank" rel="noopener noreferrer">
+                                    BlueSky
+                                </a>
+                            </Button>
+                        )}
+                        {social_handles.mastodon && (
+                            <Button variant="outline" size="sm" asChild>
+                                <a href={social_handles.mastodon} target="_blank" rel="noopener noreferrer">
+                                    Mastodon
+                                </a>
+                            </Button>
+                        )}
+                        {social_handles.instagram && (
+                            <Button variant="outline" size="sm" asChild>
+                                <a href={`https://instagram.com/${social_handles.instagram}`} target="_blank" rel="noopener noreferrer">
+                                    Instagram
+                                </a>
+                            </Button>
+                        )}
+
+                        <div className="flex-1" />
+
+                        <Button variant="ghost" size="sm">
+                            <Share2 className="w-4 h-4 mr-2" /> Share Profile
+                        </Button>
+                    </div>
+                </Card>
+            </div>
+        </div>
+    )
+}

frontend/components/ui/toast.tsx

@@ -0,0 +1,129 @@
+"use client"
+
+import * as React from "react"
+import * as ToastPrimitives from "@radix-ui/react-toast"
+import { cva, type VariantProps } from "class-variance-authority"
+import { X } from "lucide-react"
+
+import { cn } from "@/lib/utils"
+
+const ToastProvider = ToastPrimitives.Provider
+
+const ToastViewport = React.forwardRef<
+    React.ElementRef<typeof ToastPrimitives.Viewport>,
+    React.ComponentPropsWithoutRef<typeof ToastPrimitives.Viewport>
+>(({ className, ...props }, ref) => (
+    <ToastPrimitives.Viewport
+        ref={ref}
+        className={cn(
+            "fixed top-0 z-[100] flex max-h-screen w-full flex-col-reverse p-4 sm:bottom-0 sm:right-0 sm:top-auto sm:flex-col md:max-w-[420px]",
+            className
+        )}
+        {...props}
+    />
+))
+ToastViewport.displayName = ToastPrimitives.Viewport.displayName
+
+const toastVariants = cva(
+    "group pointer-events-auto relative flex w-full items-center justify-between space-x-4 overflow-hidden rounded-md border p-6 pr-8 shadow-lg transition-all data-[swipe=cancel]:translate-x-0 data-[swipe=end]:translate-x-[var(--radix-toast-swipe-end-x)] data-[swipe=move]:translate-x-[var(--radix-toast-swipe-move-x)] data-[swipe=move]:transition-none data-[state=open]:animate-in data-[state=closed]:animate-out data-[swipe=end]:animate-out data-[state=closed]:fade-out-80 data-[state=closed]:slide-out-to-right-full data-[state=open]:slide-in-from-top-full data-[state=open]:sm:slide-in-from-bottom-full",
+    {
+        variants: {
+            variant: {
+                default: "border bg-background text-foreground",
+                destructive:
+                    "destructive group border-destructive bg-destructive text-destructive-foreground",
+            },
+        },
+        defaultVariants: {
+            variant: "default",
+        },
+    }
+)
+
+const Toast = React.forwardRef<
+    React.ElementRef<typeof ToastPrimitives.Root>,
+    React.ComponentPropsWithoutRef<typeof ToastPrimitives.Root> &
+    VariantProps<typeof toastVariants>
+>(({ className, variant, ...props }, ref) => {
+    return (
+        <ToastPrimitives.Root
+            ref={ref}
+            className={cn(toastVariants({ variant }), className)}
+            {...props}
+        />
+    )
+})
+Toast.displayName = ToastPrimitives.Root.displayName
+
+const ToastAction = React.forwardRef<
+    React.ElementRef<typeof ToastPrimitives.Action>,
+    React.ComponentPropsWithoutRef<typeof ToastPrimitives.Action>
+>(({ className, ...props }, ref) => (
+    <ToastPrimitives.Action
+        ref={ref}
+        className={cn(
+            "inline-flex h-8 shrink-0 items-center justify-center rounded-md border bg-transparent px-3 text-sm font-medium ring-offset-background transition-colors hover:bg-secondary focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 group-[.destructive]:border-muted/40 group-[.destructive]:hover:border-destructive/30 group-[.destructive]:hover:bg-destructive group-[.destructive]:hover:text-destructive-foreground group-[.destructive]:focus:ring-destructive",
+            className
+        )}
+        {...props}
+    />
+))
+ToastAction.displayName = ToastPrimitives.Action.displayName
+
+const ToastClose = React.forwardRef<
+    React.ElementRef<typeof ToastPrimitives.Close>,
+    React.ComponentPropsWithoutRef<typeof ToastPrimitives.Close>
+>(({ className, ...props }, ref) => (
+    <ToastPrimitives.Close
+        ref={ref}
+        className={cn(
+            "absolute right-2 top-2 rounded-md p-1 text-foreground/50 opacity-0 transition-opacity hover:text-foreground focus:opacity-100 focus:outline-none focus:ring-2 group-hover:opacity-100 group-[.destructive]:text-red-300 group-[.destructive]:hover:text-red-50 group-[.destructive]:focus:ring-red-400 group-[.destructive]:focus:ring-offset-red-600",
+            className
+        )}
+        toast-close=""
+        {...props}
+    >
+        <X className="h-4 w-4" />
+    </ToastPrimitives.Close>
+))
+ToastClose.displayName = ToastPrimitives.Close.displayName
+
+const ToastTitle = React.forwardRef<
+    React.ElementRef<typeof ToastPrimitives.Title>,
+    React.ComponentPropsWithoutRef<typeof ToastPrimitives.Title>
+>(({ className, ...props }, ref) => (
+    <ToastPrimitives.Title
+        ref={ref}
+        className={cn("text-sm font-semibold", className)}
+        {...props}
+    />
+))
+ToastTitle.displayName = ToastPrimitives.Title.displayName
+
+const ToastDescription = React.forwardRef<
+    React.ElementRef<typeof ToastPrimitives.Description>,
+    React.ComponentPropsWithoutRef<typeof ToastPrimitives.Description>
+>(({ className, ...props }, ref) => (
+    <ToastPrimitives.Description
+        ref={ref}
+        className={cn("text-sm opacity-90", className)}
+        {...props}
+    />
+))
+ToastDescription.displayName = ToastPrimitives.Description.displayName
+
+type ToastProps = React.ComponentPropsWithoutRef<typeof Toast>
+
+type ToastActionElement = React.ReactElement<typeof ToastAction>
+
+export {
+    type ToastProps,
+    type ToastActionElement,
+    ToastProvider,
+    ToastViewport,
+    Toast,
+    ToastTitle,
+    ToastDescription,
+    ToastClose,
+    ToastAction,
+}

frontend/components/ui/toaster.tsx

@@ -0,0 +1,35 @@
+"use client"
+
+import {
+    Toast,
+    ToastClose,
+    ToastDescription,
+    ToastProvider,
+    ToastTitle,
+    ToastViewport,
+} from "@/components/ui/toast"
+import { useToast } from "@/components/ui/use-toast"
+
+export function Toaster() {
+    const { toasts } = useToast()
+
+    return (
+        <ToastProvider>
+            {toasts.map(function ({ id, title, description, action, ...props }) {
+                return (
+                    <Toast key={id} {...props}>
+                        <div className="grid gap-1">
+                            {title && <ToastTitle>{title}</ToastTitle>}
+                            {description && (
+                                <ToastDescription>{description}</ToastDescription>
+                            )}
+                        </div>
+                        {action}
+                        <ToastClose />
+                    </Toast>
+                )
+            })}
+            <ToastViewport />
+        </ToastProvider>
+    )
+}

frontend/components/ui/use-toast.ts

@@ -0,0 +1,197 @@
+"use client"
+
+import * as React from "react"
+
+import type {
+    ToastActionElement,
+    ToastProps,
+} from "@/components/ui/toast"
+
+const TOAST_LIMIT = 1
+const TOAST_REMOVE_DELAY = 1000000
+
+type ToasterToast = ToastProps & {
+    id: string
+    title?: React.ReactNode
+    description?: React.ReactNode
+    action?: ToastActionElement
+}
+
+const actionTypes = {
+    ADD_TOAST: "ADD_TOAST",
+    UPDATE_TOAST: "UPDATE_TOAST",
+    DISMISS_TOAST: "DISMISS_TOAST",
+    REMOVE_TOAST: "REMOVE_TOAST",
+} as const
+
+let count = 0
+
+function genId() {
+    count = (count + 1) % Number.MAX_SAFE_INTEGER
+    return count.toString()
+}
+
+type ActionType = typeof actionTypes
+
+type Action =
+    | {
+        type: ActionType["ADD_TOAST"]
+        toast: ToasterToast
+    }
+    | {
+        type: ActionType["UPDATE_TOAST"]
+        toast: Partial<ToasterToast>
+    }
+    | {
+        type: ActionType["DISMISS_TOAST"]
+        toastId?: ToasterToast["id"]
+    }
+    | {
+        type: ActionType["REMOVE_TOAST"]
+        toastId?: ToasterToast["id"]
+    }
+
+interface State {
+    toasts: ToasterToast[]
+}
+
+const toastTimeouts = new Map<string, ReturnType<typeof setTimeout>>()
+
+const addToRemoveQueue = (toastId: string) => {
+    if (toastTimeouts.has(toastId)) {
+        return
+    }
+
+    const timeout = setTimeout(() => {
+        toastTimeouts.delete(toastId)
+        dispatch({
+            type: "REMOVE_TOAST",
+            toastId,
+        })
+    }, TOAST_REMOVE_DELAY)
+
+    toastTimeouts.set(toastId, timeout)
+}
+
+export const reducer = (state: State, action: Action): State => {
+    switch (action.type) {
+        case "ADD_TOAST":
+            return {
+                ...state,
+                toasts: [action.toast, ...state.toasts].slice(0, TOAST_LIMIT),
+            }
+
+        case "UPDATE_TOAST":
+            return {
+                ...state,
+                toasts: state.toasts.map((t) =>
+                    t.id === action.toast.id ? { ...t, ...action.toast } : t
+                ),
+            }
+
+        case "DISMISS_TOAST": {
+            const { toastId } = action
+
+            // ! Side effects ! - This could be extracted into a dismissToast() action,
+            // but I'll keep it here for simplicity
+            if (toastId) {
+                addToRemoveQueue(toastId)
+            } else {
+                state.toasts.forEach((toast) => {
+                    addToRemoveQueue(toast.id)
+                })
+            }
+
+            return {
+                ...state,
+                toasts: state.toasts.map((t) =>
+                    t.id === toastId || action.toastId === undefined
+                        ? {
+                            ...t,
+                            open: false,
+                        }
+                        : t
+                ),
+            }
+        }
+        case "REMOVE_TOAST":
+            if (action.toastId === undefined) {
+                return {
+                    ...state,
+                    toasts: [],
+                }
+            }
+            return {
+                ...state,
+                toasts: state.toasts.filter((t) => t.id !== action.toastId),
+            }
+    }
+}
+
+const listeners: Array<(state: State) => void> = []
+
+let memoryState: State = { toasts: [] }
+
+function dispatch(action: Action) {
+    memoryState = reducer(memoryState, action)
+    listeners.forEach((listener) => {
+        listener(memoryState)
+    })
+}
+
+type Toast = Omit<ToasterToast, "id">
+
+function toast({ ...props }: Toast) {
+    const id = genId()
+
+    const update = (props: ToasterToast) =>
+        dispatch({
+            type: "UPDATE_TOAST",
+            toast: { ...props, id },
+        })
+    const dismiss = () =>
+        dispatch({
+            type: "DISMISS_TOAST",
+            toastId: id,
+        })
+
+    dispatch({
+        type: "ADD_TOAST",
+        toast: {
+            ...props,
+            id,
+            open: true,
+            onOpenChange: (open) => {
+                if (!open) dismiss()
+            },
+        },
+    })
+
+    return {
+        id,
+        dismiss,
+        update,
+    }
+}
+
+function useToast() {
+    const [state, setState] = React.useState<State>(memoryState)
+
+    React.useEffect(() => {
+        listeners.push(setState)
+        return () => {
+            const index = listeners.indexOf(setState)
+            if (index > -1) {
+                listeners.splice(index, 1)
+            }
+        }
+    }, [state])
+
+    return {
+        ...state,
+        toast,
+        dismiss: (toastId?: string) => dispatch({ type: "DISMISS_TOAST", toastId }),
+    }
+}
+
+export { useToast, toast }

frontend/package-lock.json

@@ -19,6 +19,7 @@
         "@radix-ui/react-select": "^2.1.7",
         "@radix-ui/react-switch": "^1.1.5",
         "@radix-ui/react-tabs": "^1.1.13",
+        "@radix-ui/react-toast": "^1.2.15",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "cmdk": "^1.1.1",
@@ -3111,6 +3112,40 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-toast": {
+      "version": "1.2.15",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-toast/-/react-toast-1.2.15.tgz",
+      "integrity": "sha512-3OSz3TacUWy4WtOXV38DggwxoqJK4+eDkNMl5Z/MJZaoUPaP4/9lf81xXMe1I2ReTAptverZUpbPY4wWwWyL5g==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/primitive": "1.1.3",
+        "@radix-ui/react-collection": "1.1.7",
+        "@radix-ui/react-compose-refs": "1.1.2",
+        "@radix-ui/react-context": "1.1.2",
+        "@radix-ui/react-dismissable-layer": "1.1.11",
+        "@radix-ui/react-portal": "1.1.9",
+        "@radix-ui/react-presence": "1.1.5",
+        "@radix-ui/react-primitive": "2.1.3",
+        "@radix-ui/react-use-callback-ref": "1.1.1",
+        "@radix-ui/react-use-controllable-state": "1.2.2",
+        "@radix-ui/react-use-layout-effect": "1.1.1",
+        "@radix-ui/react-visually-hidden": "1.2.3"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "@types/react-dom": "*",
+        "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "@types/react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@radix-ui/react-use-callback-ref": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-use-callback-ref/-/react-use-callback-ref-1.1.1.tgz",

frontend/package.json

@@ -21,6 +21,7 @@
     "@radix-ui/react-select": "^2.1.7",
     "@radix-ui/react-switch": "^1.1.5",
     "@radix-ui/react-tabs": "^1.1.13",
+    "@radix-ui/react-toast": "^1.2.15",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",