add a view to list worlds

WorldBuilder/AppRouter.swift

@@ -0,0 +1,20 @@
+//
+//  AppRouter.swift
+//  WorldBuilder
+//
+//  Created by Giovanni Josserand on 01/09/2026.
+//
+
+import SwiftUI
+
+@Observable
+class AppRouter {
+    var selectedTab: AppTab = .home
+}
+
+
+
+enum AppTab: Hashable {
+    case home
+    case worldsList
+}

WorldBuilder/Components/MainTabView.swift

@@ -7,19 +7,23 @@
 import SwiftUI
 
 struct MainTabView: View {
+    @Environment(AppRouter.self) private var router
+    
     var body : some View {
-        TabView {
+        @Bindable var router = router
+        
+        TabView(selection: $router.selectedTab) {
             NavigationStack {
                 HomeView()
-            }.tabItem {
-                Label("Accueil", systemImage: "house")
             }
+            .tabItem {Label("Accueil", systemImage: "house")}
+            .tag(AppTab.home)
             
             NavigationStack {
                 WorldListView()
-            }.tabItem {
-                Label("Mes mondes", systemImage: "globe.europe.africa")
             }
+            .tabItem {Label("Mes mondes", systemImage: "globe.europe.africa")}
+            .tag(AppTab.worldsList)
         }
     }
 }

WorldBuilder/Models/World.swift

@@ -0,0 +1,26 @@
+//
+//  World.swift
+//  WorldBuilder
+//
+//  Created by Giovanni Josserand on 01/09/2026.
+//
+
+import SwiftData
+import Foundation
+
+@Model
+class World {
+    var id : UUID
+    var createdAt : Date
+    var updatedAt : Date
+    var name : String
+    var overview : String
+    
+    init(name: String, overview: String) {
+        self.id = UUID()
+        self.name = name
+        self.overview = overview
+        self.createdAt = Date()
+        self.updatedAt = Date()
+    }
+}

WorldBuilder/Views/CreateWorld/CreateWorldView.swift

@@ -6,10 +6,18 @@
 //
 
 import SwiftUI
+import SwiftData
 
 struct CreateWorldView: View {
     @State private var worldName = ""
-    @State private var worldDescription = ""
+    @State private var worldOverview = ""
+    
+    @Environment(\.modelContext) private var context
+    @Environment(\.dismiss) private var dismiss
+    @Environment(AppRouter.self) private var router
+    
+    @State private var showSaveError = false
+    @State private var saveErrorMessage = ""
     
     var body: some View {
         Form {
@@ -18,14 +26,23 @@ struct CreateWorldView: View {
 
                 TextField(
                     "Description",
-                    text: $worldDescription,
+                    text: $worldOverview,
                     axis: .vertical
                 )
             }
 
             Section {
                 Button("Créer le monde") {
-                    createWorld()
+                    let world =  World(name: worldName, overview: worldOverview)
+                    context.insert(world)
+                    do {
+                        try context.save()
+                        router.selectedTab = .worldsList
+                        dismiss()
+                    }catch {
+                        saveErrorMessage = "Impossible de sauvegarder le monde : \(error.localizedDescription)"
+                        showSaveError = true
+                    }
                 }
                 .disabled(worldName.isEmpty)
                 .padding(.horizontal, 24)
@@ -39,9 +56,10 @@ struct CreateWorldView: View {
         }
         .navigationTitle("Créer un monde")
         .navigationBarTitleDisplayMode(.inline)
+        .alert("Erreur", isPresented: $showSaveError) {
+            Button("OK") { }
+        } message: {
+            Text(saveErrorMessage)
         }
-
-    private func createWorld() {
-        print("Création du monde : \(worldName)")
     }
 }

WorldBuilder/Views/Home/HomeView.swift

@@ -11,6 +11,7 @@ struct HomeView : View {
     var body: some View {
         NavigationLink("Créer un monde"){
             CreateWorldView()
-        }.buttonStyle(.glass)
+        }
+        .buttonStyle(.glass)
     }
 }

WorldBuilder/Views/WorldList/WorldListView.swift

@@ -6,9 +6,30 @@
 //
 
 import SwiftUI
+import SwiftData
 
 struct WorldListView: View {
+    @Environment(\.modelContext) private var context
+    @Query(sort: \World.createdAt, order: .reverse) private var worlds: [World]
+
     var body: some View {
-        Text("My worlds")
+        Group {
+            if worlds.isEmpty {
+                Text("Aucun monde")
+                NavigationLink("Créer un monde"){
+                    CreateWorldView()
+                }
+                .buttonStyle(.glass)
+            }else{
+                List {
+                    ForEach(worlds) {world in
+                        Text(world.name)
+                        Text(world.overview)
+                    }
+                }
+            }
+        }
+        .navigationTitle("Mes mondes")
+        .navigationBarTitleDisplayMode(.inline)
     }
 }

WorldBuilder/WorldBuilderApp.swift

@@ -6,12 +6,17 @@
 //
 
 import SwiftUI
+import SwiftData
 
 @main
 struct WorldBuilderApp: App {
+    @State private var router = AppRouter()
+    
     var body: some Scene {
         WindowGroup {
             ContentView()
+                .environment(router)
         }
+        .modelContainer(for: World.self)
     }
 }