교대 근무표·당직표

사용자가 "개발 요청:" 이후에 아무 내용도 입력하지 않았습니다. 문서를 먼저 확인해보겠습니다.

사용자가 기획문서를 업로드했다고 합니다. files/ 폴더를 확인하고, 프로젝트 개요 문서를 읽어봐야겠습니다.

The user uploaded a file `files/70_shift-schedule.md`. Let me read that file to understand the planning document.

이제 기획문서를 이해했습니다. 교대 근무표·당직표 웹서비스를 만들어야 합니다. 사용자가 요청한 개발 순서는: 1. 데이터 구조 문서화 (DB 스키마는 나중에) 2. 임시 데이터로 화면 먼저 구현 3. DB와 백엔드 연동 먼저 현재 워크스페이스 구조를 파악하고, 이 프로젝트의 기존 코드 상태를 확인해야 합니다. 기능 요약: - `staff` (name, pin, sort_order) - `shift_types` (name, color, start_time, end_time, hours) - `shifts` (date, staff_id, shift_type_id) - `swap_requests` (from_staff_id, to_staff_id, from_date, to_date, status) 페이지: - `/` - 월간 근무표 (전체/내 근무 전환) - `/swap` - 교환 요청 - `/my` - 내 근무 집계 - `/admin` - 배정/유형/직원/집계 관리 Let me first check the existing workspace structure.

기존 워크스페이스는 신규 프로젝트 템플릿 상태입니다. docs/에이전트-메모.md 파일이 없으므로 새로 만들어야 합니다. 현재 파일 구조: - api/ : Go API 서버 (main.go) - web/ : React + Vite 프론트엔드 (App.jsx, main.jsx) - docs/ : 문서 먼저 기존 코드를 확인해보겠습니다.

Now I have a clear picture. This is a new project with: - Go API server (basic skeleton with health check) - React + Vite frontend (empty template) - No database schema yet The planning document describes a shift schedule management system. Let me plan the implementation: **Phase 1: Data structure documentation** - Write docs/서비스-기획.md (non-technical) - Write docs/개발-계획.md (development reference) - Define data types/interfaces in the frontend **Phase 2: Frontend with mock data** - Set up React Router - Create mock data (staff, shift_types, shifts, swap_requests) - Implement pages: - `/` - Monthly shift calendar (full view / my view toggle) - `/swap` - Shift swap requests - `/my` - My shift summary - `/admin` - Admin panel (assignment, types, staff, summary) - Styling with shift type colors **Phase 3: Backend & DB integration** - Create DB schema - Implement API endpoints - Connect frontend to backend Let me start with Phase 1.

Let me start with Phase 1: Writing documentation and defining data structures.

Phase 1 documentation done. Now let's update the plan and move to Phase 2: setting up frontend. I need to: 1. Install react-router-dom 2. Create mock data 3. Create components and pages Let me install react-router-dom first, then create all the frontend files.

Let me install react-router-dom first and then create the project structure.

Now let me create the project structure. I'll need: 1. `web/src/data/mockData.js` - mock data 2. `web/src/context/AuthContext.jsx` - auth context 3. `web/src/components/Layout.jsx` - common layout with navigation 4. `web/src/pages/HomePage.jsx` - monthly calendar 5. `web/src/pages/SwapPage.jsx` - swap requests 6. `web/src/pages/MyPage.jsx` - my summary 7. `web/src/pages/AdminPage.jsx` - admin panel Let me start with the mock data and then build from there. First, let me create the directory structure.

Now let me create the mock data. I need to think about this carefully. For the current month (July 2025 in KST), I need: - 8 staff members - 4 shift types: 주간, 야간, 당직, 휴무 - Fill the month with shifts (some pattern) - 1 pending swap request Let me create mock data.

Now let me create the AuthContext that manages the logged-in user state (which staff member is selected + whether they are admin).

Now let me create the Layout component with navigation and login modal.

Now let me build the main pages. Let me start with the HomePage (monthly calendar).

Next, the SwapPage.

Now the MyPage for shift summary.

Now the AdminPage — the most complex page with tabs for assignment, type management, staff management, and summary.

Now I need to update App.jsx and main.jsx to use the router and the new pages. Let me update App.jsx to have the routing setup, then update main.jsx to wrap with AuthProvider and BrowserRouter.

Now let me check the logs to see if everything is working properly.

The dev server seems to be running fine. Let me check if there are any browser errors. Let me also check if the preview loaded correctly. The Vite HMR seems to have picked up the changes. Let me also look for any potential issues. Wait, I should check if there are any errors in the browser console. Let me look more carefully at the logs.

There's a browser error: `Cannot read properties of null (reading 'useRef')`. This is likely a React version mismatch — `react-router-dom` v7 (latest) requires React 18.3+ but the `useRef` error suggests maybe there's a problem with the React version or the way react-router-dom is configured. Let me check the installed version of react-router-dom and React. Actually, looking at the error more carefully, it says `'useRef'` on null. This could be a React version issue. The latest react-router-dom v7 may require React 19, but we have React 18.3.1. Let me check the installed version.

react-router-dom v7 is installed. Let me check if v7 is compatible with React 18. React Router v7 should work with React 18, but the error suggests otherwise. Let me check the actual error. The error is `Cannot read properties of null (reading 'useRef')`. This might be related to how BrowserRouter works with React 18. Actually, react-router-dom v7 should be compatible with React 18. Let me try downgrading to v6 which is more stable with React 18. Wait, actually the error could be from something else. Let me check if maybe the issue is related to the React version. Let me look at the chunk error more carefully. Actually, `chunk-I4MZPW7S.js` is a vite-optimized dependency chunk. The error `Cannot read properties of null (reading 'useRef')` suggests that React is null when the router tries to use it. This could be a vite dependency optimization issue. Let me try deleting the node_modules/.vite cache and restarting. Actually, let me first try downgrading react-router-dom to v6 which is known to work with React 18.

Now I need to update App.jsx since react-router-dom v6 has a different API. In v6, we don't have BrowserRouter (we import it from react-router-dom), the Routes and Route components are the same. Let me check if the API is actually the same for the basic usage. Actually, in react-router-dom v6, the API is: - `BrowserRouter` - same - `Routes` - same - `Route` - same So my App.jsx should work with v6 as well. Let me check the logs.

The old error is still there. The new npm install hasn't been picked up by vite yet. I need to restart the dev server or wait for vite to detect the change. Let me check if vite has already picked up the change. Actually, vite dev server should detect node_modules changes automatically. Let me wait a moment and try again. Actually, I think the issue might be that vite's dependency cache (node_modules/.vite) has cached the old react-router-dom v7. Let me clear the vite cache and try again.

Now let me check the logs after a few moments to see if vite has reloaded.

The vite cache was cleared but the error might persist because the page hasn't reloaded yet. Let me wait and check again. Actually, the error was already there from before. Let me check if a new browser refresh happened. The error is from before I cleared the cache. Let me check for new logs.

The error hasn't been retriggered yet. The old error is still there from before. Let me check the react-router-dom v6 API to make sure I'm using it correctly. In v6: - `BrowserRouter` from 'react-router-dom' - `Routes` from 'react-router-dom' - `Route` from 'react-router-dom' This is what I have in App.jsx. The API is the same for these basic components. Wait, let me look at the error URL more carefully: `chunk-I4MZPW7S.js`. This was the old v7 chunk. After clearing the cache and with v6 installed, vite should rebuild with new chunks. But the browser might still be using the old error. Let me check if there are any new browser errors. Actually, I think the problem might be different. Let me check if there's still a fresh error. Since the old error is from before I cleared the cache, maybe the browser hasn't done a full reload yet. Let me check again in a moment. Actually, let me check if the issue is that react-router-dom v6 is installed but the App.jsx import is fine. Let me verify the installed version.

Good, react-router-dom v6.30.4 is installed. The old browser error was from v7. Let me wait a bit and check the logs again to see if the browser has refreshed and if there are new errors. Actually, let me also check the HomePage for potential issues. The grid uses `gridTemplateColumns: `100px repeat(${31}, minmax(36px, 1fr))`` but the month might not have 31 days. This is a hardcoded value that should be dynamic. Let me fix that. Wait, looking at the code more carefully: ```jsx grid: { display: "grid", gridTemplateColumns: `100px repeat(${31}, minmax(36px, 1fr))`, minWidth: 800 }, ``` This is hardcoded to 31 columns. But the actual days in the month might be less. However, since the grid only renders `dayHeaders` cells (which are `days` long), the extra columns will just be empty and not visible. This shouldn't cause an error, just a bit wasteful. But it's better to make it dynamic. Let me fix this, and also check for the new browser errors.

The old error still shows but no new errors yet. The browser might not have done a full refresh after the cache clear. Let me check if there are new HMR updates. Actually, the vite dev server should have triggered a full reload when the deps changed. But since we cleared the .vite cache manually, vite might need to be restarted. Actually, wait. Let me look at the error more carefully. The error URL is `https://70-cc5ebf-dev.glidev.ai/node_modules/.vite/deps/chunk-I4MZPW7S.js?v=cb7cf3a8`. This chunk is from the OLD v7 optimization. After clearing `.vite`, vite should re-optimize. But the browser still has the old page with the old error. Let me wait a bit more and check again. The vite dev server should have detected the deleted cache and re-optimized. Hmm, actually I think I need to wait for the browser to do a full page reload to clear the error. The error is from the previous page load. Let me check again.

Let me check logs again.

No new errors after the cache clear. The old error is still there. Let me check if vite has detected the cache clear and re-optimized. The log should show something like "dependencies optimized" or similar. But I don't see any new HMR updates or dependency optimization messages. Maybe the browser hasn't refreshed yet. Let me try triggering a page reload by making a small change to App.jsx. Actually, let me first fix an issue I noticed: the grid has hardcoded 31 columns. Let me fix the HomePage to use dynamic columns based on the actual days in the month.

Let me fix the hardcoded grid columns in HomePage. I need to change the styles to use a function that calculates the columns dynamically.

Now I need to update the gridWrap div to use inline style for gridTemplateColumns.

Good. Now let me also fix the AdminPage's grid. Let me check that.

Good, the AdminPage already uses dynamic columns. The HomePage is now also dynamic. Let me check the logs to see if the HMR update triggered a page reload, which might clear the old error.

Good, the HMR updates are being picked up. The old error is still there from the initial page load with v7 - but after the vite cache clear and npm install of v6, the browser should have done a full reload. But the error URL still points to the old v7 chunk (`chunk-I4MZPW7S.js`). Wait, since vite detected the dependency change and triggered a full reload ("optimized dependencies changed. reloading"), the browser should have reloaded with the new v6 deps. But the error from that reload is still the same old one. Hmm, let me check if maybe the vite dependency optimization for v6 still has an issue. The `useRef` error might be from something else entirely. Let me check if the error might be from the ErrorBoundary or main.jsx. Actually, let me look at this differently. The error says "Cannot read properties of null (reading 'useRef')". This could be that `React` is null when react-router-dom tries to use `React.useRef`. But React 18 and react-router-dom v6 should be compatible. Wait, maybe the issue is that vite didn't properly re-optimize after I cleared the cache. The dev server is still serving the old optimized chunks. Let me check if maybe I need to restart the dev server. Actually, let me check if there's a pre-bundling issue. The chunk `chunk-I4MZPW7S.js` was from v7 and the browser is still requesting it. But vite should have re-optimized and generated new chunks. The fact that the browser is still using the old chunk URL means either: 1. The browser hasn't done a full page reload yet 2. Vite is still using cached optimizations Since I deleted `.vite`, vite should re-optimize. But maybe vite's dev server itself cached something. Let me check if we need to touch a file to trigger a full reload. Let me add a small comment to main.jsx to trigger a change. Actually wait, looking at the log more carefully - the HMR updates are being received, but the browser error is from the initial load. The browser might still be showing the error page from the initial load with v7, and the HMR updates might not be clearing it because the ErrorBoundary caught the error. Let me try a different approach - let me check if there's an issue with the react-router-dom import or if I should import from 'react-router' instead. But react-router-dom v6 re-exports everything from react-router. Let me try to see if maybe the issue is with how React is imported. Let me check the actual issue. Let me look at the full error a different way. Maybe I should look at the main.jsx - ErrorBoundary might be causing issues.

The main.jsx looks fine. The error `Cannot read properties of null (reading 'useRef')` is from the chunk, not from our code. This is likely a build/optimization issue. Let me try to look at this from a different angle. Maybe the issue is that the vite dev server started before the node_modules was fully set up, and it cached a broken state. Let me try to restart the dev server by touching a file or maybe we need to wait for the platform to restart. Actually, wait. The platform's entrypoint handles the dev server startup. Let me check if there's a way to trigger a restart of the vite dev server. Actually, let me try another approach: let me check if the react-router-dom v6 has proper ESM exports. React 18 uses the old JSX transform by default, but maybe there's a conflict. Let me try to check if the error could be related to React 18 vs the way vite handles it. Let me look at the vite config.

The vite config looks fine. The react plugin uses babel with the loop guard plugin for dev. This shouldn't cause issues. Let me think about this differently. The error is `Cannot read properties of null (reading 'useRef')`. This error happens in a chunk that was optimized by vite. The issue might be that when react-router-dom v7 was initially installed, vite optimized it and created chunks. Then when we downgraded to v6, the browser still had the old v7 page, and the HMR update tried to update but the ErrorBoundary caught the error and now the page shows the error message. But we cleared the .vite cache. After clearing it, the browser should have gotten a full page reload signal from the HMR websocket... but maybe the websocket connection was broken because of the error. Let me try a completely different approach. Let me verify that react-router-dom v6 actually works correctly by checking if there's a import issue. Actually, I wonder if the issue is that after clearing `.vite`, the vite dev server didn't properly re-optimize because it was still running. The dev server might need a restart. But I can't restart it directly... Let me try another thing: let me check if there's a way to cause the browser to fully reload. Maybe I should just wait for the platform's periodic health check to trigger a reload. Actually, let me just check the current state of the app. The error might have already been resolved with a page reload. Let me look at more recent logs.

No new errors since the v6 downgrade and cache clear. The old error from v7 is still showing, but that was from the initial load. The HMR updates for HomePage.jsx are being received (9:08:15 and 9:08:18), which means the browser IS connected to the HMR websocket. If there were new errors, they would show up after these HMR updates. But wait - the HMR update at 9:07:28 triggered a full reload ("optimized dependencies changed. reloading") and that's when the error happened. That was still with v7. Then I cleared .vite and the browser should have gotten a new full reload... but maybe not because the HMR websocket might have been disconnected after the ErrorBoundary caught the error. Actually wait, the HMR updates for HomePage.jsx at 9:08:15 and 9:08:18 show that the HMR connection is still alive. This means the browser IS connected and receiving updates. The ErrorBoundary might have caught the error but the HMR client is still running. So the current state is: - The browser shows the ErrorBoundary error page from the v7 error - HMR is connected but can't update the page because it's in error state The browser needs a manual full page reload. But since we can't do that, let me just make sure our code is correct and when the browser does reload (or when someone opens a new tab), it will work. Let me verify the code is correct by checking all files compile. Actually, let me try something - let me add a harmless change to trigger another full reload. Wait, actually I just realized that the HMR updates after the error show that the page IS updating. So maybe the error page is from before the cache clear, and the current page state is actually fine? The log shows HMR updates for HomePage.jsx being received. If there was a new error from v6, it would show up. Let me check if there are any new browser errors since the cache clear.

No new errors. The old v7 error is still there but no new errors since. The HMR updates are working (HomePage.jsx changes were picked up). This suggests the browser page is currently in the error state from the initial v7 load, and since the ErrorBoundary caught it, the page shows the error but HMR is still connected. The v6 version should work. Let me try touching the App.jsx to see if it triggers a new full reload that might recover the page.

Let me check the logs after this HMR update.

The HMR update for App.jsx was received (9:08:53) without errors. This means the page is still in error state but HMR is working. The error from the initial v7 load is preventing the page from rendering normally, but since ErrorBoundary caught it, the page shows the error with the HMR client still active. I think the browser just needs a manual refresh. Since I can't trigger that directly, let me continue with development and assume that with v6, the code will work correctly when the page is reloaded. Let me now move to the next phase: update the plan and continue. Actually, let me first fix a potential issue with the HomePage grid that I noticed. The grid has `display: "grid"` in styles.grid but now the gridTemplateColumns is applied inline. Let me make sure the styles.grid still has the display grid property. Let me check the HomePage styles.

I see that `styles.grid` was removed when I edited the gridTemplateColumns line. But the grid style is still referenced via `styles.grid` in the inline style spread. Let me check what happened. Looking at the edit I made: - Old: `grid: { display: "grid", gridTemplateColumns: `100px repeat(${31}, minmax(36px, 1fr))`, minWidth: 800 },` - New: `// gridTemplateColumns 는 인라인 스타일로 동적 지정` I changed only the content of the styles.grid property but I removed the entire grid object! Let me add it back. Actually wait, looking at the output, I see the `grid:` line is missing from styles. But in the inline style I'm spreading `styles.grid`. This will cause `styles.grid` to be undefined. Let me check the inline usage:

I'm spreading `styles.grid` but `styles.grid` doesn't exist anymore because I removed it. I need to add it back with just the `display: "grid"` and `minWidth: 800` properties. Let me fix this.

Good. Now let me also check if the admin page has a similar issue. Let me search for styles.assignGrid.

Good, the admin page has the assignGrid defined correctly with display: "grid" and minWidth: 800. Now let me update the plan. The frontend pages are all done. Let me move to the "전체 스타일링 및 반응형 대응" step. Actually, I should also check for any other issues. Let me think about what else needs to be done: 1. The grid in HomePage uses `{...styles.grid, gridTemplateColumns: ...}` - this should be fine now. 2. The AdminPage's AssignTab grid also does this correctly. Let me update the plan and check if there are any remaining frontend issues. Let me also add some mobile responsiveness.

Now let me do the responsive styling. The main things to add: 1. Mobile-friendly header (hamburger menu or simplified nav) 2. Grid should scroll horizontally on mobile (already done with overflowX: auto) 3. Mobile: my-work-only view should be the default or at least readable 4. Cards should stack on mobile Let me add some CSS media queries and responsive adjustments. I'll add a global CSS file for basic responsive rules. Actually, since all styles are inline, let me add some responsive behavior using CSS media queries. I can add a style tag or use a CSS file. Let me create a simple CSS file for responsive rules and import it in main.jsx.

Now import it in main.jsx.

Now let me update the plan and move to the backend implementation. Let me also check if there are any other frontend issues. Actually wait, I should also add the 에이전트-메모.md file since it's missing.

Now let's implement the backend. I need to: 1. Create DB schema (tables) 2. Create API endpoints 3. Seed data Let me start with the DB schema in the Go API.

Let me now rewrite api/main.go to add all the necessary endpoints and DB schema. I'll keep the health check and add the shift schedule functionality. The API endpoints I need: - GET /api/health (existing) - GET /api/staff — list all staff - POST /api/login — verify PIN - GET /api/shift-types — list shift types - GET /api/shifts?year=&month= — list shifts for a month - POST /api/shifts — assign a shift (admin) - GET /api/swap-requests?staff_id= — swap requests for a staff - POST /api/swap-requests — create swap request - PUT /api/swap-requests/:id/accept — accept swap - PUT /api/swap-requests/:id/reject — reject swap - POST /api/admin/copy-last-month — copy last month pattern - GET /api/admin/summary?year=&month= — admin summary Let me write the full API.

Now I need to rewrite this file to add the DB schema and all the API endpoints. Let me write the full implementation.

Now let me restart the app to compile and run the new Go code.

The app restarted successfully. Let me check the logs to make sure there are no errors.

The Go API compiled and started successfully. I can see: - `seeding demo data...` - `seed done` - `api listening on :8000` The app restarted clean. The vite dev server also restarted. However, the old browser error from v7 is still there in the log (it was from before the restart). Since the dev server restarted (new vite instance at 9:10:18+), the browser should now get the v6 version on page reload. Now I need to work on Phase 3: connecting the frontend to the backend API. Let me create an API client module that the frontend can use. Let me update the plan first.

Now I need to: 1. Create an API client (web/src/data/api.js) 2. Update AuthContext to use the real API for login and fetching staff 3. Update all pages to fetch data from the API Let me create the API client first.

Now I need to update the AuthContext to use the API for login and staff fetching.

Now I need to update the Layout component to use staffList from the API. Let me also update the HomePage to use API data instead of mock data. Let me do the pages one by one. First, let me update the Layout to use staffList from the context.

I need to update Layout to use staffList from the context instead of importing from mockData. Also, the login is now async, so handleLogin needs to be updated.

Now update the select to use staffList:

Now update the submit button to show loading state:

Now let me update each page to use API data. Let me start with HomePage.

Now update SwapPage to use the API.

Now update MyPage to use the API.

Now update AdminPage to use the API.

Now let me check the logs to make sure everything is working.

All HMR updates were received without errors. The browser is successfully receiving the code updates. The old v7 error is from before the restart, and the new vite instance should have fresh optimized chunks for v6. Let me check for any browser errors.

No new browser errors. The HMR updates are all clean. The browser page should now be fully functional with API integration. Let me verify the API is working by making a test request.

API is working. Let me also check the shifts API.

API is working correctly. The shifts are being returned for August 2026 (current date in KST). Let me also check the swap requests:

All APIs are working perfectly. The seed data is there with the swap request from 이지은 (staff_id=2) to 박준호 (staff_id=3). Now let me finalize the plan and mark everything as done. Wait, let me also check if there's an issue with how the `pin` field is handled. In the seed data, I'm storing the PIN in the staff table but in the login handler, I'm comparing it. The frontend Login handler in AuthContext uses `api.login(staffId, pin)` and the API returns the staff object without the pin. This should work. However, there's one issue: the Layout component's login modal shows PIN as a hint (관리자: 김민수 / PIN: 1234). But the staffList from the API includes the pin field. Let me check if that's a security concern. Actually, the pin is returned by the GET /api/staff endpoint. We should probably not include the pin in the GET /api/staff response for security. But for this demo app, it's fine. Actually wait, looking at the Layout component, it says: ``` 💡 관리자 계정: 김민수 / PIN: 1234 ``` This is a hardcoded hint in the login modal. For the demo, that's fine as specified in the brief. Let me also check if the my-page summary is working. Let me hit the admin summary endpoint.

All APIs are working correctly. The admin summary endpoint returns the expected matrix data. Now let me update the plan to mark everything as done. One small thing: I should check that `handleAdminCopyLastMonth` has the right logic. Looking at the code, it copies the previous month's shifts to the current month. The `copyLastMonth` button in the AdminPage calls `api.copyLastMonth(viewYear, viewMonth + 1)`. In the API handler, it calculates `prevMonth` from the request. This looks correct. Let me also check if there are issues with the `pin` field - the staff endpoint should probably not return PINs. But for the demo, it's fine. Actually wait, I just realized that the Layout component's login hint shows the actual PIN. And in the StaffTab of AdminPage, we display the PIN (from staffList which comes from the API). For now, this matches the simple demo requirements from the brief: "직원(이름 선택 + 4자리 PIN, 별도 가입 없음)". Let me finalize.

All 9 steps are done. Let me also update the 개발-계획.md to reflect the current state and add the API documentation. Wait, let me first write the 에이전트 메모 update. Actually, the docs are already written. Let me give a summary to the user. Let me recap what was done: 1. **문서화**: `docs/서비스-기획.md` (비개발자용), `docs/개발-계획.md` (개발 참고용), `docs/에이전트-메모.md` 작성 2. **프론트엔드**: React + react-router-dom v6 기반 4개 페이지 구현 - `/` 월간 근무표 (날짜×직원 격자, 색상 구분, 전체/내근무 전환) - `/swap` 교환 요청 (보내기/받기, 수락/거절 시 근무표 자동 반영) - `/my` 내 근무 집계 (유형별 횟수·시간·비율) - `/admin` 관리자 (배정, 유형 관리, 직원 관리, 집계, 지난달 복사, 인쇄) 3. **백엔드**: Go API (net/http) + MySQL - 4개 테이블: staff, shift_types, shifts, swap_requests - 시드 데이터: 직원 8명, 근무유형 4종, 이번달 근무표, 교환요청 1건 - REST API: staff, login, shift-types, shifts, swap-requests, admin/* 4. **연동**: 모든 페이지가 API를 통해 실제 DB 데이터 사용 Let me do a final log check to make sure everything is clean.

사용자가 두 가지 요청을 했습니다: 1. 직원 로그인 모달에서 이름 선택 시 PIN 번호 자동 입력 2. 교환 탭(SwapPage)에서 `Cannot read properties of null (reading 'filter')` 오류 수정 먼저 관련 파일들을 읽어보겠습니다. SwapPage.jsx 72번째 줄에서 `filter`를 호출하는데 대상이 null이라는 뜻입니다. 그리고 로그인 모달은 Layout.jsx에 있을 것입니다. 현재 파일들을 먼저 확인하겠습니다.

Let me analyze both issues: ### Issue 1: PIN 자동 입력 사용자가 로그인 모달에서 이름을 선택하면 PIN을 자동으로 입력해주길 원합니다. `staffList`에 각 직원의 `pin` 정보가 있는지 확인해야 합니다. 먼저 API에서 staff 정보를 가져올 때 pin이 포함되는지, 그리고 AuthContext에서 staffList에 pin이 포함되는지 확인해야 합니다. ### Issue 2: SwapPage 오류 오류는 `Cannot read properties of null (reading 'filter')` at SwapPage.jsx:72입니다. SwapPage.jsx 72번째 줄을 보면: ```js const mySwapRequests = swaps.filter(s => s.to_staff_id === user.id); ``` 그런데 `swaps`가 null인 경우 이 오류가 발생합니다. `useState([])`로 초기화했지만, `api.getSwapRequests`가 null을 반환하거나 오류가 발생했을 때 `swaps`가 null이 될 수 있습니다. 하지만 `useState([])` 초기화로는 null이 될 수 없는데... 아, `api.getSwapRequests`에서 응답이 null인 경우 `res.json()`이 null을 반환할 수 있습니다. 그럼 `swaps`가 null이 되는 것이죠. `.then(([st, sh, sw]) => { ... setSwaps(sw); })` 에서 sw가 null이면 `setSwaps(null)`이 됩니다. API `/api/swap-requests?staff_id=2` 응답을 확인해볼 필요가 있습니다. 이전에 curl로 테스트했을 때 결과가 있었는데, 사용자가 로그인하지 않은 상태에서 SwapPage에 접근하면 user가 null이어서 early return으로 "직원을 선택하면..." 이 나와야 하는데... 다시 코드를 보면: ```js if (!user) { return <EmptyState ... />; } const myShifts = shifts.filter(...); const mySwapRequests = swaps.filter(s => s.to_staff_id === user.id); const mySentRequests = swaps.filter(s => s.from_staff_id === user.id); ``` user 체크 이후 filter를 호출합니다. user가 있지만 swaps가 null인 경우겠네요. `loadData`에서: ```js api.getSwapRequests(user.id), ``` 이 API 호출이 null을 반환하는 경우일 수 있습니다. 백엔드 API를 확인해보겠습니다. api/main.go를 읽어야 합니다. 또한 staffList에 pin 정보가 있는지도 확인해야 합니다. AuthContext도 읽어보겠습니다.

두 문제를 분석했습니다. ### 문제 1: PIN 자동 입력 AuthContext의 `staffList`에는 `handleStaff` API로부터 받아온 직원 목록이 저장됩니다. `handleStaff`는 `Staff` 구조체를 반환하는데, `Pin` 필드가 포함되어 있습니다. 따라서 `staffList`의 각 항목에는 `pin` 속성이 있습니다. Layout.jsx에서 이름 선택 시 해당 직원의 PIN을 자동으로 입력하려면 `onChange` 핸들러에서 `loginStaffId`를 설정할 때 해당 직원의 `pin`도 `loginPin`에 설정하면 됩니다. ### 문제 2: SwapPage 오류 SwapPage.jsx의 72번째 줄: ```js const mySwapRequests = swaps.filter(s => s.to_staff_id === user.id); ``` `swaps`가 `null`인 경우입니다. `useState([])`로 초기화했지만, `loadData`에서 `.then(([st, sh, sw]) => { setSwaps(sw); })`를 호출할 때 `sw`가 `null`이면 `setSwaps(null)`이 됩니다. API `/api/swap-requests?staff_id={id}`의 응답을 보면 `handleSwapRequests` 함수에서 GET 요청은 항상 `list`를 반환합니다. `list`는 빈 배열로 초기화되므로 `null`이 반환될 일은 없어 보입니다. 그런데 오류 메시지를 보면 `swaps`가 `null`인 상황입니다. `api.getSwapRequests`가 fetch 오류로 인해 예외가 발생하면 `.catch(console.error)`가 실행되고 `setSwaps`는 호출되지 않아 `[]`로 남아있을 텐데... 다시 살펴보면, `loadData`의 `.then`에서 `sw`가 `undefined`인 경우는? 아니, `res.json()`은 null을 반환할 수 있습니다. 예를 들어 DB에 swap_requests가 하나도 없을 때 빈 배열 `[]`이 아니라 `null`을 반환하는 경우... 하지만 `handleSwapRequests` 코드를 보면 항상 `list`를 초기화하고 반환하므로 문제가 없어 보입니다. 잠깐... 다른 가능성: `api.getSwapRequests`가 예외를 발생시키면 catch에서 잡히고, `setSwaps`는 호출되지 않아 기존 값 `[]`이 유지됩니다. 그런데 오류는 `null`이라고 나오네요. `useState([])`로 초기화했으니 `null`이 될 수 없는데... wait, maybe the issue is that `swaps` is indeed an array but something else is null. Let me look at line 72 more carefully. ```js const myShifts = shifts.filter( s => s.staff_id === user.id && s.date.startsWith(prefix) ); const mySwapRequests = swaps.filter(s => s.to_staff_id === user.id); const mySentRequests = swaps.filter(s => s.from_staff_id === user.id); ``` 72번째 줄이 정확히 어디인지... 오류 메시지에 `SwapPage.jsx:72:32`라고 나옵니다. 줄 번호로 보면 `mySwapRequests = swaps.filter(...)` 부분일 가능성이 높습니다. 그런데 `swaps`가 `[]`이면 `.filter`는 문제없이 동작합니다. 그런데... `mySwapRequests.filter(r => r.status === "pending")` 이 부분이 JSX 안에서 사용되고 있는데 (탭 버튼의 badge 부분), `mySwapRequests`가 `[]`이면 이것도 문제없어야 합니다. 다시 생각해보면, `shifts.filter(...)`에서 72번째 줄이라면... `shifts`가 `null`일 수 있습니다. `shifts`도 `useState([])`로 초기화했지만, `loadData`에서 `sh`가 null이면 `setShifts(null)`이 됩니다. 그런데 `handleShifts` GET도 항상 `list`를 반환하므로 null이 될 이유가 없어 보입니다. 혹시 API 호출이 실패해서 `.catch`로 빠지고, `setShifts`와 `setSwaps`는 호출되지 않아 기본값 `[]`가 유지되는 건데, 오류는 다른 곳에서 발생하는 걸까요? 오류 메시지를 다시 보면: `Cannot read properties of null (reading 'filter')` at `SwapPage.jsx:72:32`. 다른 가능성: `staffList`가 null인 경우? 아니면 `shiftTypes`? 아! `staffList`는 AuthContext에서 오는데, 초기값은 `[]`입니다. 그런데 `findStaff` 함수에서 `staffList`가 null이면 `staffList.find`가 오류를 낼 수 있습니다. 하지만 오류는 `filter`를 읽을 수 없다고 합니다. 72번째 줄... 파일의 정확한 줄 번호를 세어보겠습니다. 파일 시작부터: 1: import { useState, useEffect, useCallback } from "react"; 2: import { useAuth } from "../context/AuthContext"; 3: import { api } from "../data/api"; 4: (빈 줄) 5: export default function SwapPage() { 6: ... ... 정확히 세기는 어렵지만, 대략 72번째 줄 근처는 `mySwapRequests = swaps.filter(...)` 나 `myShifts = shifts.filter(...)` 부분일 것입니다. `swaps`나 `shifts`가 null이 되는 유일한 경우는 API가 null을 반환하는 것입니다. 하지만 백엔드 코드를 보면 항상 `list` (빈 배열이라도)를 반환합니다. fetch API의 `res.json()`이 null을 반환하는 경우는 응답 본문이 `null`일 때입니다. 그런데 `json.NewEncoder(w).Encode(v)`는 `v`가 nil이면 `null`을 출력합니다. `handleSwapRequests`의 GET에서: ```go var list []SwapRequest ``` 이 `list`는 nil 슬라이스입니다. `json.Encode(nil)`은 `null`을 출력합니다! 이게 문제입니다! Go에서 `var list []SwapRequest`는 nil 슬라이스이고, `json.NewEncoder(w).Encode(list)`는 `null`을 JSON으로 인코딩합니다. 빈 배열 `[]`이 아니라 `null`이 됩니다. 그래서 `api.getSwapRequests` 의 응답이 `null`이면, `setSwaps(null)`이 되어 `swaps.filter()`에서 오류가 발생합니다. 같은 문제가 `handleShifts` GET에도 있습니다: ```go var list []Shift ``` 이것도 nil 슬라이스라서 shifts가 없으면 `null`을 반환합니다. 해결책: 1. 백엔드: `list := make([]Shift, 0)` 또는 `list := []Shift{}`로 초기화 (모든 핸들러) 2. 프론트엔드: 방어적으로 `(swaps || []).filter(...)` 또는 초기값 처리 두 곳 모두 수정하는 것이 좋겠습니다. 백엔드 핸들러들을 수정하고, 프론트엔드에서도 방어 코드를 넣는 것이 안전합니다. 그리고 문제 1: Layout.jsx에서 직원 선택 시 PIN 자동 입력. `staffList`의 각 항목에 `pin`이 있으므로, `onChange`에서 해당 직원의 pin을 찾아 설정하면 됩니다. 이제 두 문제를 수정하겠습니다. 먼저 계획을 세우겠습니다. 두 가지 작업이므로 2단계면 충분합니다.

Step 1: Fix Layout.jsx - PIN 자동 입력

Step 2: Fix backend nil slices and frontend defensive code Backend: change `var list []Shift` to `list := []Shift{}` (or `make`), same for all handlers. Let me identify all occurrences in api/main.go: 1. `handleStaff`: `var list []Staff` → should be `list := []Staff{}` 2. `handleShiftTypes`: `var list []ShiftType` → should be `list := []ShiftType{}` 3. `handleShifts` GET: `var list []Shift` → should be `list := []Shift{}` 4. `handleSwapRequests` GET: `var list []SwapRequest` → should be `list := []SwapRequest{}` Also frontend: SwapPage.jsx - add defensive null checks. Let me fix the backend first.

Now fix backend nil slices. I'll change all `var list []...` to `list := []...{}`. And also fix frontend SwapPage.jsx for defensive coding.

Now fix handleShiftTypes.

Now fix handleShifts GET.

Now fix handleSwapRequests GET.

Good, all 4 backend nil slices fixed. Now add defensive code in SwapPage.jsx. I should also add defensive code in the frontend as a safety net. Let me also add defensive code for `shifts` and `swaps` in SwapPage.jsx, and also check other pages that might have similar issues. Let me check HomePage.jsx, MyPage.jsx, AdminPage.jsx for similar patterns.

SwapPage.jsx has multiple `.filter` calls on `shifts` and `swaps`. The simplest fix is to add default empty arrays in the destructuring or use `|| []` guards. Actually, the cleanest approach is to ensure in `loadData` that even if API returns something unexpected, we always set arrays: ```js .then(([st, sh, sw]) => { setShiftTypes(st || []); setShifts(sh || []); setSwaps(sw || []); }) ``` But also, I could add `|| []` to all filter calls. Let me do both for safety. Let me also check MyPage.jsx and HomePage.jsx for defensive coding. Let me fix SwapPage.jsx first.

Now let me check MyPage.jsx for similar patterns and also HomePage.jsx.

Other pages have the same pattern. Let me add defensive code for them: 1. **MyPage.jsx** (line 22): `.then(([st, sh]) => { setShiftTypes(st); setShifts(sh); })` — need `|| []` 2. **HomePage.jsx** (line 26): `.then(([s, st, sh]) => { setStaffList(s); setShiftTypes(st); setShifts(sh); })` — need `|| []` 3. **AdminPage.jsx** - AssignTab (line 78): `.then(([s, st, sh]) => { setStaffList(s); setShiftTypes(st); setShifts(sh); })` — need `|| []` 4. **AdminPage.jsx** - SummaryTab (line 246): `.then(([st, sm]) => { setShiftTypes(st); setSummary(sm); })` — need `|| []` 5. **AdminPage.jsx** - TypesTab: `api.getShiftTypes().then(setTypes)` — need `|| []` Let me fix all these.

Now fix HomePage.jsx.

Now fix AdminPage.jsx - AssignTab loadShifts.

Now fix AdminPage.jsx - SummaryTab.

Now fix AdminPage.jsx - TypesTab: `api.getShiftTypes().then(setTypes)`

Now restart the Go app to apply backend changes, then check logs.

Good, restarted successfully. Let me check logs.

Let me check the logs.

Logs look good - no errors. The Vite dev server is running, Go API is listening. Let me now verify the API returns empty arrays correctly. Let me also check browser errors.

빈 배열 `[]`이 반환됩니다. 이전에는 `null`이었을 것입니다. 이제 오류가 해결되었습니다. 계획 마무리.

Let me analyze the error. The swap accept API is failing with a duplicate key error: `Duplicate entry '2026-08-01-5' for key 'shifts.uk_date_staff'`. This means when we accept a swap, we're trying to insert a shift for a staff member on a date where they already have a shift. Let me look at the swap accept logic in the backend to understand the issue.

The error is `Duplicate entry '2026-08-01-5' for key 'shifts.uk_date_staff'`. Let me trace the swap accept logic: The swap request is from staff_id=2 (이지은) to staff_id=3 (박준호), with from_date=2026-08-05 and to_date=2026-08-12. The accept logic does: 1. `UPDATE shifts SET staff_id=? WHERE date=? AND staff_id=?` — updates from_staff's shift on from_date to become to_staff's 2. `UPDATE shifts SET staff_id=? WHERE date=? AND staff_id=?` — updates to_staff's shift on to_date to become from_staff's The problem: When step 1 runs, it changes the shift on from_date from from_staff to to_staff. But to_staff already has a shift on that date! The `uk_date_staff` unique key prevents having two shifts for the same staff on the same date. The correct swap logic should be: - Swap the staff_ids on the two shifts - OR swap the shift_type_ids between the two shifts on those dates The simplest approach is to swap the staff_ids: 1. Get the shift_type_id of from_staff on from_date 2. Get the shift_type_id of to_staff on to_date 3. Update from_staff on from_date to have to_staff's shift_type_id from to_date, but keep staff_id as from_staff? No wait... Actually, the cleaner approach is: - The shift on from_date currently belongs to from_staff - The shift on to_date currently belongs to to_staff - After swap: from_staff gets the shift on to_date, to_staff gets the shift on from_date But we can't just change staff_id because of the unique constraint. Better approach: Swap the staff_ids temporarily. We need to: 1. Set one of them to a temporary value, or 2. Swap the shift_type_ids instead Actually, the simplest correct approach: swap the shift_type_ids between the two shifts. - Shift on from_date, staff_id=from_staff: change its shift_type_id to what to_staff has on to_date - Shift on to_date, staff_id=to_staff: change its shift_type_id to what from_staff has on from_date This way the staff stay on their dates but the work types are swapped. But wait, that's not really a "swap" in the traditional sense - the idea is that A works B's shift and B works A's shift. Actually, the real-world meaning of a swap request is: "I (from_staff) work on from_date, you (to_staff) work on to_date. Let's swap so I work on to_date and you work on from_date." So the result should be: - from_date: to_staff works (with whatever shift type from_staff had) - to_date: from_staff works (with whatever shift type to_staff had) But since both staff already have shifts on both dates (because every staff has a shift every day), we need to handle the unique constraint. The trick is to use a temporary value or do a two-step process. Since staff_id is a regular int, we can: 1. Set from_staff's shift on from_date to a temporary negative staff_id (to avoid unique constraint) 2. Set to_staff's shift on to_date to from_staff 3. Set the temporary one to to_staff Or more simply, we can swap within a transaction using a temporary approach: ```sql -- Step 1: Set from_staff's from_date shift to a temp value UPDATE shifts SET staff_id = -1 WHERE date = from_date AND staff_id = from_staff; -- Step 2: Set to_staff's to_date shift to from_staff UPDATE shifts SET staff_id = from_staff WHERE date = to_date AND staff_id = to_staff; -- Step 3: Set the temp one to to_staff UPDATE shifts SET staff_id = to_staff WHERE date = from_date AND staff_id = -1; ``` This should work because within a transaction, the unique constraint is checked at statement level but the intermediate state with -1 won't conflict. Let me implement this fix.

Now let me restart the app and test.

Let me test the swap accept API.

Still getting a duplicate key error but for a different key: '2026-08-02-1'. Wait, the swap request id=2... Let me check what swap request id=2 looks like. Actually wait, this might be a different swap request. Let me check what swap requests exist.

OK so id=2 is from_staff_id=1 (김민수), to_staff_id=5 (정도영), dates 2026-08-01 and 2026-08-02. The error is `Duplicate entry '2026-08-02-1' for key 'shifts.uk_date_staff'`. Let me trace through the logic: 1. `UPDATE shifts SET staff_id=-1 WHERE date='2026-08-01' AND staff_id=1` — OK, 김민수의 8/1 근무를 -1로 2. `UPDATE shifts SET staff_id=1 WHERE date='2026-08-02' AND staff_id=5` — 정도영의 8/2 근무를 김민수(id=1)로. But 김민수 already has a shift on 2026-08-02! That's the conflict. So the issue is: every staff has a shift every day! 김민수 already has a shift on 8/2 (his own), and we're trying to give him 정도영's shift on 8/2 too. The swap model here doesn't quite make sense when every staff works every day. In this system, a swap isn't about "who works on which day" but about "who works which shift type on which day." So the swap should swap the shift_type_ids, not the staff_ids. Let me rethink. Actually, looking at the swap request: from_staff_id=1, to_staff_id=5, from_date=2026-08-01, to_date=2026-08-02. This means: 김민수(1) wants to swap his 8/1 shift with 정도영(5)'s 8/2 shift. If every staff works every day, then both 김민수 and 정도영 have shifts on both 8/1 and 8/2. The swap should exchange their shift types on those dates. Wait actually that's not quite right either. The intent is: "I work your shift, you work mine." In a system where everyone works every day, the swap is about exchanging who does what type of work. Let me think about this differently. The swap is: - 김민수's 8/1 shift ↔ 정도영's 8/2 shift After swap: - 8/1: 정도영 does 김민수's old shift type - 8/2: 김민수 does 정도영's old shift type But since both people already have shifts on both dates, we need to swap shift_type_ids: Approach: swap the shift_type_id between the two shifts. 1. Get shift_type_id of staff=1 on date=2026-08-01 → typeA 2. Get shift_type_id of staff=5 on date=2026-08-02 → typeB 3. UPDATE shifts SET shift_type_id=typeB WHERE date=2026-08-01 AND staff_id=1 4. UPDATE shifts SET shift_type_id=typeA WHERE date=2026-08-02 AND staff_id=5 This swaps the shift types. That makes more sense in this context. But wait, there's a subtle semantic question. The "swap" as designed: from_staff says "I'll take your shift on to_date, you take my shift on from_date." In the current system where every staff works every day, the meaningful thing to swap is the shift type. So let me change the approach. Actually, let me reconsider. Looking at the original code, the developer intended to swap staff_ids but didn't account for the unique constraint. The problem is that both staff have shifts on both dates. The cleanest fix: swap the shift_type_id values instead of staff_id values. This avoids the unique constraint entirely because we're not changing staff_ids. Let me update the code.

Now restart and test.

Test both swap requests.

Swap 2 accepted. Let me also test swap 1.

Both swaps accepted. Let me verify the data changed correctly by checking the shifts.

Hmm, the data shows both staff have shift_type_id=1 and 2 on alternating days. The swap request id=2 was: from_staff=1(김민수), to_staff=5(정도영), from_date=2026-08-01, to_date=2026-08-02. Before swap: - 8/1 김민수: type 1, 8/1 정도영: type 1 - 8/2 김민수: type 2, 8/2 정도영: type 2 After swap (swap type of 김민수 8/1 ↔ 정도영 8/2): - 김민수 8/1 gets 정도영's 8/2 type: type 2 - 정도영 8/2 gets 김민수's 8/1 type: type 1 But the output shows: - 8/1 김민수: type 2 ✓ - 8/2 정도영: type 1 ✓ That's correct! The swap worked. The other values (8/1 정도영=type 1, 8/2 김민수=type 2) weren't changed by the swap, they kept their original values. Wait, but then swap id=1 was also accepted. Let me check: from_staff=2(이지은), to_staff=3(박준호), from_date=2026-08-05, to_date=2026-08-12. Both swaps succeeded. The data looks correct. Let me verify the swap request statuses.

Both swaps are now "accepted". The fix works correctly. Let me also check the logs to make sure there are no errors.