초기 커밋 - EV AS 관리 시스템

frontend/static/js/api.js

@@ -0,0 +1,72 @@
+const API = (() => {
+  const BASE = '/api';
+
+  function token() { return localStorage.getItem('ev_token') || ''; }
+
+  async function req(method, path, body = null, isForm = false) {
+    const headers = {};
+    if (token()) headers['Authorization'] = 'Bearer ' + token();
+    let fetchBody = null;
+    if (body) {
+      if (isForm) {
+        fetchBody = body;
+      } else {
+        headers['Content-Type'] = 'application/json';
+        fetchBody = JSON.stringify(body);
+      }
+    }
+    const res = await fetch(BASE + path, { method, headers, body: fetchBody });
+    if (res.status === 401) { Auth.logout(); return; }
+    if (!res.ok) {
+      const err = await res.json().catch(() => ({ detail: '오류가 발생했습니다.' }));
+      throw new Error(err.detail || '오류');
+    }
+    const ct = res.headers.get('content-type') || '';
+    if (ct.includes('spreadsheet') || ct.includes('octet') || ct.includes('excel')) {
+      return res.blob();
+    }
+    return res.json().catch(() => ({}));
+  }
+
+  // 엑셀 다운로드 전용 함수 — 인증 토큰 포함, 에러 처리 강화
+  async function download(path, filename) {
+    try {
+      const headers = {};
+      if (token()) headers['Authorization'] = 'Bearer ' + token();
+
+      const res = await fetch(BASE + path, { method: 'GET', headers });
+
+      if (res.status === 401) { Auth.logout(); return; }
+      if (!res.ok) {
+        const err = await res.json().catch(() => ({ detail: '다운로드 오류' }));
+        throw new Error(err.detail || '다운로드 오류');
+      }
+
+      const blob = await res.blob();
+      if (!blob || blob.size === 0) {
+        alert('데이터가 없어 엑셀 파일을 생성할 수 없습니다.');
+        return;
+      }
+
+      const url = URL.createObjectURL(blob);
+      const a   = document.createElement('a');
+      a.href     = url;
+      a.download = filename;
+      document.body.appendChild(a);
+      a.click();
+      document.body.removeChild(a);
+      URL.revokeObjectURL(url);
+    } catch(e) {
+      alert('엑셀 다운로드 실패: ' + e.message);
+    }
+  }
+
+  return {
+    get:      (path)       => req('GET',    path),
+    post:     (path, body) => req('POST',   path, body, body instanceof FormData),
+    put:      (path, body) => req('PUT',    path, body, body instanceof FormData),
+    patch:    (path, body) => req('PATCH',  path, body, body instanceof FormData),
+    delete:   (path)       => req('DELETE', path),
+    download,
+  };
+})();