feat: move visit creation to modal with fab and geocoding updates

README.md

@@ -20,7 +20,7 @@ traveling-around-the-world/
 ### 技術與工具
 - Vite + React 18 + TypeScript
 - React Router 規劃 SPA 路由
-- Zustand 追蹤 UI 狀態（表單抽屜開關與初始座標）
+- Zustand 追蹤 UI 狀態（訪問表單 Modal 與初始座標）
 - React Query 統一處理資料讀寫與快取
 - React Hook Form + Zod 表單驗證
 - react-leaflet + OpenStreetMap 圖資，支援地圖點擊新增足跡
@@ -30,7 +30,8 @@ traveling-around-the-world/
 - `features/map`：Leaflet 地圖、點擊事件、旅遊標記
 - `features/visits`：資料型別、LocalStorage Repository、React Query hooks、統計卡片與表單元件
 - `components/layout`：頁面主框架、側邊欄
-- `state`：Zustand store 控制表單抽屜
+- `state`：Zustand store 控制訪問建立/編輯的 Modal
+- `components/overlay/VisitModal`：以 Modal 呈現足跡表單，地圖右下角的 `+` 漂浮按鈕或點擊地圖即可開啟
 
 ### LocalStorage → API 的切換
 - 預設 `VisitProvider mode="local"` 會載入 `localVisitRepository`。
@@ -82,7 +83,7 @@ RESTful 端點：
 ## 開發流程建議
 1. **LocalStorage MVP**：僅啟動前端即可使用，點擊地圖開啟表單、資料存在瀏覽器。
 2. **串接 API**：建立 MongoDB，啟動 `npm run dev` 後將前端 `VisitProvider` 切換到 API 模式。
-3. **Geocoding**：`features/visits/utils/geocoding.ts` 預留反向地理編碼函式，可透過自建 API Proxy 存取 Nominatim。
+3. **Geocoding**：前端已透過 Nominatim 反向地理編碼在點擊地圖時預填國家 / 城市；若需更高配額可在後端建立 Proxy。
 4. **照片/檔案**：後端可擴增 S3/Cloudinary 上傳，再於前端 `VisitCreateInput` 增加檔案欄位。
 
 ## 待辦與下一步

client/src/app/App.tsx

@@ -3,6 +3,7 @@ import { VisitProvider } from '../features/visits/context/VisitProvider';
 import { PrimaryLayout } from '../components/layout/PrimaryLayout';
 import { VisitSidebar } from '../components/layout/VisitSidebar';
 import { TravelMap } from '../features/map/TravelMap';
+import { VisitModal } from '../components/overlay/VisitModal';
 
 function HomePage() {
   return <PrimaryLayout sidebar={<VisitSidebar />} content={<TravelMap />} />;
@@ -16,6 +17,7 @@ export function App() {
           <Route path="/" element={<HomePage />} />
         </Routes>
       </BrowserRouter>
+      <VisitModal />
     </VisitProvider>
   );
 }

client/src/components/layout/VisitSidebar.tsx

@@ -1,21 +1,12 @@
-import { useEffect, useState } from 'react';
 import { useTranslation } from 'react-i18next';
-import type { Visit } from '../../features/visits/types';
 import { VisitList } from '../../features/visits/components/VisitList';
-import { VisitForm } from '../../features/visits/components/VisitForm';
 import { VisitSummary } from '../../features/visits/components/VisitSummary';
-import { useVisitDrawerStore } from '../../state/useVisitDrawerStore';
+import { useVisitModalStore } from '../../state/useVisitModalStore';
 
 export function VisitSidebar() {
-  const { isOpen, initialLocation, open, close } = useVisitDrawerStore();
-  const [editingVisit, setEditingVisit] = useState<Visit | null>(null);
   const { t } = useTranslation();
-
+  const openForCreate = useVisitModalStore((state) => state.openForCreate);
-  useEffect(() => {
+  const openForEdit = useVisitModalStore((state) => state.openForEdit);
-    if (!isOpen) {
-      setEditingVisit(null);
-    }
-  }, [isOpen]);
 
   return (
     <aside className="flex h-full w-full flex-col gap-4 overflow-y-auto bg-slate-50 p-4">
@@ -27,7 +18,7 @@ export function VisitSidebar() {
         <button
           type="button"
           className="rounded bg-primary px-3 py-1.5 text-sm font-semibold text-white hover:bg-primary/90"
-          onClick={() => open(initialLocation)}
+          onClick={() => openForCreate()}
         >
           {t('sidebar.add')}
         </button>
@@ -36,39 +27,8 @@ export function VisitSidebar() {
       <VisitSummary />
 
       <section className="flex-1">
-        <VisitList
+        <VisitList onEdit={openForEdit} />
-          onEdit={(visit) => {
-            setEditingVisit(visit);
-            open({ lat: visit.location.lat, lng: visit.location.lng });
-          }}
-        />
       </section>
-
-      {isOpen ? (
-        <section className="rounded-lg bg-white p-4 shadow-md">
-          <div className="mb-3 flex items-center justify-between">
-            <h3 className="text-lg font-semibold">
-              {t(editingVisit ? 'sidebar.drawerTitleEdit' : 'sidebar.drawerTitleCreate')}
-            </h3>
-            <button
-              type="button"
-              className="rounded px-2 py-1 text-sm text-slate-500 hover:bg-slate-100"
-              onClick={() => {
-                setEditingVisit(null);
-                close();
-              }}
-            >
-              {t('sidebar.close')}
-            </button>
-          </div>
-          <VisitForm
-            editingVisit={editingVisit ?? undefined}
-            onCompleted={() => {
-              setEditingVisit(null);
-            }}
-          />
-        </section>
-      ) : null}
     </aside>
   );
 }

client/src/components/overlay/VisitModal.tsx

@@ -0,0 +1,34 @@
+import { useTranslation } from 'react-i18next';
+import { useVisitModalStore } from '../../state/useVisitModalStore';
+import { VisitForm } from '../../features/visits/components/VisitForm';
+
+export function VisitModal() {
+  const { isOpen, close, editingVisit, initialLocation } = useVisitModalStore();
+  const { t } = useTranslation();
+
+  if (!isOpen) return null;
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-slate-900/60 px-4 py-10">
+      <div className="relative w-full max-w-lg rounded-2xl bg-white p-6 shadow-2xl">
+        <header className="mb-4 flex items-start justify-between">
+          <div>
+            <h2 className="text-xl font-semibold">
+              {editingVisit ? t('sidebar.drawerTitleEdit') : t('sidebar.drawerTitleCreate')}
+            </h2>
+            <p className="text-sm text-slate-500">{t('sidebar.subtitle')}</p>
+          </div>
+          <button
+            type="button"
+            aria-label={t('sidebar.close')}
+            className="rounded bg-slate-100 px-2 py-1 text-sm text-slate-500 hover:bg-slate-200"
+            onClick={close}
+          >
+            X
+          </button>
+        </header>
+        <VisitForm editingVisit={editingVisit} initialLocation={initialLocation} onCompleted={close} onCancel={close} />
+      </div>
+    </div>
+  );
+}

client/src/features/map/TravelMap.tsx

@@ -3,19 +3,20 @@ import 'leaflet/dist/leaflet.css';
 import { useEffect } from 'react';
 import type { LeafletMouseEvent } from 'leaflet';
 import { ensureLeafletConfig } from './leafletConfig';
-import { useVisitDrawerStore } from '../../state/useVisitDrawerStore';
+import { useVisitModalStore } from '../../state/useVisitModalStore';
 import { useVisitsQuery } from '../visits/hooks/useVisitQueries';
+import { useTranslation } from 'react-i18next';
 
 const INITIAL_POSITION: [number, number] = [20, 0];
 const INITIAL_ZOOM = 2;
 
 function MapEvents() {
-  const openDrawer = useVisitDrawerStore((state) => state.open);
+  const openForCreate = useVisitModalStore((state) => state.openForCreate);
 
   useMapEvents({
     click: (event: LeafletMouseEvent) => {
       const { lat, lng } = event.latlng;
-      openDrawer({ lat, lng });
+      openForCreate({ lat, lng });
     }
   });
 
@@ -29,27 +30,40 @@ export function TravelMap() {
 
   const { data: visits = [] } = useVisitsQuery();
 
+  const openForCreate = useVisitModalStore((state) => state.openForCreate);
+  const { t } = useTranslation();
+
   return (
-    <MapContainer className="h-full w-full" center={INITIAL_POSITION} zoom={INITIAL_ZOOM} scrollWheelZoom>
+    <div className="relative h-full w-full">
-      <TileLayer
+      <MapContainer className="h-full w-full z-0" center={INITIAL_POSITION} zoom={INITIAL_ZOOM} scrollWheelZoom>
-        attribution='\u00a9 <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>'
+        <TileLayer
-        url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
+          attribution='\u00a9 <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>'
-      />
+          url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
-      <MapEvents />
+        />
-      {visits.map((visit) => (
+        <MapEvents />
-        <Marker key={visit.id} position={[visit.location.lat, visit.location.lng]}>
+        {visits.map((visit) => (
-          <Popup>
+          <Marker key={visit.id} position={[visit.location.lat, visit.location.lng]}>
-            <div className="space-y-1">
+            <Popup>
-              <p className="font-semibold">{visit.location.city ?? visit.location.country}</p>
+              <div className="space-y-1">
-              <p className="text-sm text-slate-500">
+                <p className="font-semibold">{visit.location.city ?? visit.location.country}</p>
-                {visit.date.start}
+                <p className="text-sm text-slate-500">
-                {visit.date.end ? ` — ${visit.date.end}` : null}
+                  {visit.date.start}
-              </p>
+                  {visit.date.end ? ` — ${visit.date.end}` : null}
-              {visit.notes ? <p className="text-sm">{visit.notes}</p> : null}
+                </p>
-            </div>
+                {visit.notes ? <p className="text-sm">{visit.notes}</p> : null}
-          </Popup>
+              </div>
-        </Marker>
+            </Popup>
-      ))}
+          </Marker>
-    </MapContainer>
+        ))}
+      </MapContainer>
+      <button
+        type="button"
+        aria-label={t('sidebar.add')}
+        className="absolute bottom-5 right-5 z-10 flex h-12 w-12 items-center justify-center rounded-full bg-primary text-2xl font-bold text-white shadow-lg transition hover:bg-primary/90"
+        onClick={() => openForCreate()}
+      >
+        +
+      </button>
+    </div>
   );
 }

client/src/features/visits/components/VisitForm.tsx

@@ -1,11 +1,18 @@
-import { useEffect } from 'react';
+import { useEffect, useState } from 'react';
 import { useForm } from 'react-hook-form';
 import { z } from 'zod';
 import { zodResolver } from '@hookform/resolvers/zod';
 import type { Visit, VisitCreateInput } from '../types';
 import { useCreateVisitMutation, useUpdateVisitMutation } from '../hooks/useVisitQueries';
-import { useVisitDrawerStore } from '../../../state/useVisitDrawerStore';
 import { useTranslation } from 'react-i18next';
+import { reverseGeocode } from '../utils/geocoding';
+
+function getTodayDate(): string {
+  const now = new Date();
+  const offsetMinutes = now.getTimezoneOffset();
+  const localMidnight = new Date(now.getTime() - offsetMinutes * 60 * 1000);
+  return localMidnight.toISOString().split('T')[0];
+}
 
 const visitFormSchema = z
   .object({
@@ -30,12 +37,14 @@ type VisitFormSchema = z.infer<typeof visitFormSchema>;
 interface VisitFormProps {
   editingVisit?: Visit | null;
   onCompleted?: () => void;
+  onCancel?: () => void;
+  initialLocation?: { lat: number; lng: number };
 }
 
-export function VisitForm({ editingVisit, onCompleted }: VisitFormProps) {
+export function VisitForm({ editingVisit, onCompleted, onCancel, initialLocation }: VisitFormProps) {
-  const closeDrawer = useVisitDrawerStore((state) => state.close);
-  const initialLocation = useVisitDrawerStore((state) => state.initialLocation);
   const { t } = useTranslation();
+  const [isGeocoding, setIsGeocoding] = useState(false);
+  const [geocodeFailed, setGeocodeFailed] = useState(false);
 
   const createMutation = useCreateVisitMutation();
   const updateMutation = useUpdateVisitMutation();
@@ -44,13 +53,14 @@ export function VisitForm({ editingVisit, onCompleted }: VisitFormProps) {
     register,
     handleSubmit,
     setValue,
+    getValues,
     formState: { errors, isSubmitting, isSubmitSuccessful }
   } = useForm<VisitFormSchema>({
     resolver: zodResolver(visitFormSchema),
     defaultValues: {
       country: editingVisit?.location.country ?? '',
       city: editingVisit?.location.city ?? '',
-      start: editingVisit?.date.start ?? '',
+      start: editingVisit?.date.start ?? getTodayDate(),
       end: editingVisit?.date.end ?? '',
       notes: editingVisit?.notes ?? '',
       lat: editingVisit?.location.lat ?? initialLocation?.lat ?? 0,
@@ -66,11 +76,69 @@ export function VisitForm({ editingVisit, onCompleted }: VisitFormProps) {
   }, [initialLocation, editingVisit, setValue]);
 
   useEffect(() => {
-    if (isSubmitSuccessful) {
+    if (editingVisit) {
-      closeDrawer();
+      setValue('start', editingVisit.date.start, { shouldDirty: false });
-      onCompleted?.();
+      setValue('end', editingVisit.date.end ?? '', { shouldDirty: false });
+    } else {
+      setValue('start', getTodayDate(), { shouldDirty: false });
+      setValue('end', '', { shouldDirty: false });
     }
-  }, [isSubmitSuccessful, closeDrawer, onCompleted]);
+  }, [editingVisit, setValue]);
+
+  useEffect(() => {
+    if (!initialLocation || editingVisit) {
+      return;
+    }
+
+    let cancelled = false;
+    setGeocodeFailed(false);
+    setIsGeocoding(true);
+
+    void reverseGeocode(initialLocation.lat, initialLocation.lng)
+      .then((result) => {
+        if (cancelled) {
+          return;
+        }
+
+        if (!result) {
+          setGeocodeFailed(true);
+          return;
+        }
+
+        setGeocodeFailed(false);
+
+        if (!getValues('country')) {
+          setValue('country', result.country, { shouldDirty: true });
+        }
+        if (result.city && !getValues('city')) {
+          setValue('city', result.city, { shouldDirty: true });
+        }
+      })
+      .catch(() => {
+        if (!cancelled) {
+          setGeocodeFailed(true);
+        }
+      })
+      .finally(() => {
+        if (!cancelled) {
+          setIsGeocoding(false);
+        }
+      });
+
+    return () => {
+      cancelled = true;
+    };
+  }, [initialLocation, editingVisit, getValues, setValue]);
+
+  useEffect(() => {
+    if (isSubmitSuccessful) {
+      if (onCompleted) {
+        onCompleted();
+      } else {
+        onCancel?.();
+      }
+    }
+  }, [isSubmitSuccessful, onCancel, onCompleted]);
 
   async function onSubmit(values: VisitFormSchema) {
     const payload: VisitCreateInput = {
@@ -190,11 +258,16 @@ export function VisitForm({ editingVisit, onCompleted }: VisitFormProps) {
         </div>
       </div>
 
+      {isGeocoding ? <p className="text-xs text-slate-500">{t('geocoding.detecting')}</p> : null}
+      {!isGeocoding && geocodeFailed ? (
+        <p className="text-xs text-rose-500">{t('geocoding.failed')}</p>
+      ) : null}
+
       <div className="flex justify-end gap-2">
         <button
           type="button"
           className="rounded border border-slate-300 px-4 py-2"
-          onClick={() => closeDrawer()}
+          onClick={() => onCancel?.()}
         >
           {t('form.cancel')}
         </button>

client/src/features/visits/utils/geocoding.ts

@@ -5,12 +5,79 @@ export interface ReverseGeocodeResult {
   city?: string;
 }
 
+interface NominatimAddress {
+  country?: string;
+  country_code?: string;
+  city?: string;
+  town?: string;
+  village?: string;
+  municipality?: string;
+  city_district?: string;
+  county?: string;
+  state?: string;
+  suburb?: string;
+}
+
+interface NominatimResponse {
+  address?: NominatimAddress;
+  country_code?: string;
+}
+
+function deriveCity(address: NominatimAddress | undefined, countryCode?: string): string | undefined {
+  if (!address) return undefined;
+  const normalizedCountry = countryCode?.toUpperCase() ?? address.country_code?.toUpperCase();
+
+  const baseCity = address.city ?? address.town ?? address.municipality ?? address.village ?? address.city_district;
+
+  if (normalizedCountry === 'JP') {
+    const isTokyoPrefecture = address.state ? /東京/u.test(address.state) : false;
+    if (baseCity && isTokyoPrefecture && /\bCity$/u.test(baseCity)) {
+      return address.state;
+    }
+    // Japanese responses often return special wards (xx区). Prefer prefecture (state) when ward-level comes back.
+    if (baseCity && /[区區]$/u.test(baseCity) && address.state) {
+      return address.state;
+    }
+    if (baseCity) {
+      return baseCity;
+    }
+    return address.state;
+  }
+
+  return baseCity ?? address.county ?? address.state ?? address.suburb;
+}
+
 export async function reverseGeocode(lat: number, lng: number): Promise<ReverseGeocodeResult | null> {
-  // TODO: Integrate with a reverse geocoding service (e.g., Nominatim) once backend proxy is available.
+  const url = new URL('https://nominatim.openstreetmap.org/reverse');
-  // For now, return null and let users input manually.
+  url.searchParams.set('format', 'jsonv2');
-  void lat;
+  url.searchParams.set('lat', String(lat));
-  void lng;
+  url.searchParams.set('lon', String(lng));
-  return null;
+  url.searchParams.set('zoom', '10');
+  url.searchParams.set('addressdetails', '1');
+  url.searchParams.set('accept-language', 'en');
+
+  try {
+    const response = await fetch(url.toString());
+
+    if (!response.ok) {
+      return null;
+    }
+
+    const data = (await response.json()) as NominatimResponse;
+    const address = data.address ?? {};
+    const country = address.country;
+    if (!country) return null;
+
+    const cityCandidate = deriveCity(address, data.country_code);
+
+    return {
+      country,
+      city: cityCandidate ?? undefined
+    };
+  } catch (error) {
+    console.warn('reverse geocode failed', error);
+    return null;
+  }
 }
 
 export function applyGeocodeFallback(location: VisitLocation, geocode?: ReverseGeocodeResult | null): VisitLocation {

client/src/locales/en/translation.json

@@ -50,5 +50,9 @@
     "countryRequired": "Country is required",
     "startDateRequired": "Please choose a start date",
     "endAfterStart": "End date must be after the start date"
+  },
+  "geocoding": {
+    "detecting": "Detecting location...",
+    "failed": "Could not detect automatically, please fill in manually"
   }
 }

client/src/locales/zh-Hant/translation.json

@@ -50,5 +50,9 @@
     "countryRequired": "請填寫國家",
     "startDateRequired": "請選擇開始日期",
     "endAfterStart": "結束日期需晚於開始日期"
+  },
+  "geocoding": {
+    "detecting": "自動判斷地點中...",
+    "failed": "暫時無法自動辨識，請手動輸入"
   }
 }

client/src/state/useVisitDrawerStore.ts

@@ -1,16 +0,0 @@
-import { create } from 'zustand';
-import type { VisitLocation } from '../features/visits/types';
-
-interface VisitDrawerState {
-  isOpen: boolean;
-  initialLocation?: Pick<VisitLocation, 'lat' | 'lng'>;
-  open: (location?: Pick<VisitLocation, 'lat' | 'lng'>) => void;
-  close: () => void;
-}
-
-export const useVisitDrawerStore = create<VisitDrawerState>((set) => ({
-  isOpen: false,
-  initialLocation: undefined,
-  open: (location) => set({ isOpen: true, initialLocation: location }),
-  close: () => set({ isOpen: false, initialLocation: undefined })
-}));

client/src/state/useVisitModalStore.ts

@@ -0,0 +1,30 @@
+import { create } from 'zustand';
+import type { Visit } from '../features/visits/types';
+
+interface VisitModalState {
+  isOpen: boolean;
+  initialLocation?: { lat: number; lng: number };
+  editingVisit?: Visit;
+  openForCreate: (location?: { lat: number; lng: number }) => void;
+  openForEdit: (visit: Visit) => void;
+  close: () => void;
+}
+
+export const useVisitModalStore = create<VisitModalState>((set) => ({
+  isOpen: false,
+  initialLocation: undefined,
+  editingVisit: undefined,
+  openForCreate: (location) =>
+    set({
+      isOpen: true,
+      initialLocation: location,
+      editingVisit: undefined
+    }),
+  openForEdit: (visit) =>
+    set({
+      isOpen: true,
+      initialLocation: { lat: visit.location.lat, lng: visit.location.lng },
+      editingVisit: visit
+    }),
+  close: () => set({ isOpen: false, editingVisit: undefined, initialLocation: undefined })
+}));