Feat: 로그인 여부에 따른 메인페이지 이동 및 dashboard 처리

app/(auth)/forgot-password/page.tsx

@@ -11,6 +11,7 @@ import {
   CardTitle,
 } from "@/components/ui/card";
 import Link from "next/link";
+import { AUTH_ROUTES } from "@/features/auth/constants";
 
 /**
  * [비밀번호 찾기 페이지]
@@ -72,7 +73,7 @@ export default async function ForgotPasswordPage({
 
           <div className="text-center">
             <Link
-              href="/login"
+              href={AUTH_ROUTES.LOGIN}
               className="text-sm font-medium text-gray-700 hover:text-black dark:text-gray-300 dark:hover:text-white"
             >
               로그인 페이지로 돌아가기

app/(auth)/signup/page.tsx

@@ -1,4 +1,5 @@
 import Link from "next/link";
+import { AUTH_ROUTES } from "@/features/auth/constants";
 import FormMessage from "@/components/form-message";
 import SignupForm from "@/features/auth/components/signup-form";
 import {
@@ -42,7 +43,7 @@ export default async function SignupPage({
           <p className="text-center text-sm text-gray-600 dark:text-gray-400">
             이미 계정이 있으신가요?{" "}
             <Link
-              href="/login"
+              href={AUTH_ROUTES.LOGIN}
               className="font-semibold text-gray-900 transition-colors hover:text-black dark:text-gray-100 dark:hover:text-white"
             >
               로그인 하러 가기

app/(home)/page.tsx

@@ -0,0 +1,126 @@
+import Link from "next/link";
+import { Button } from "@/components/ui/button";
+import { createClient } from "@/utils/supabase/server";
+import { UserMenu } from "@/features/layout/components/user-menu";
+import { AUTH_ROUTES } from "@/features/auth/constants";
+
+export default async function HomePage() {
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+
+  return (
+    <div className="flex min-h-screen flex-col">
+      <header className="sticky top-0 z-40 flex h-14 w-full items-center justify-between border-b border-zinc-200 bg-white/75 px-6 backdrop-blur-md dark:border-zinc-800 dark:bg-black/75">
+        <Link href={AUTH_ROUTES.HOME} className="flex items-center gap-2">
+          <div className="h-6 w-6 rounded-md bg-zinc-900 dark:bg-zinc-50" />
+          <span className="text-lg font-bold tracking-tight text-zinc-900 dark:text-zinc-50">
+            AutoTrade
+          </span>
+        </Link>
+        <div className="flex items-center gap-4">
+          {user ? (
+            <>
+              <Button asChild variant="ghost" size="sm">
+                <Link href={AUTH_ROUTES.DASHBOARD}>대시보드</Link>
+              </Button>
+              <UserMenu user={user} />
+            </>
+          ) : (
+            <>
+              <Button asChild variant="ghost" size="sm">
+                <Link href={AUTH_ROUTES.LOGIN}>로그인</Link>
+              </Button>
+              <Button asChild size="sm">
+                <Link href={AUTH_ROUTES.SIGNUP}>무료로 시작하기</Link>
+              </Button>
+            </>
+          )}
+        </div>
+      </header>
+
+      <main className="flex-1">
+        <section className="space-y-6 pb-8 pt-6 md:pb-12 md:pt-10 lg:py-32">
+          <div className="container flex max-w-5xl flex-col items-center gap-4 text-center">
+            <h1 className="font-heading text-3xl sm:text-5xl md:text-6xl lg:text-7xl">
+              투자의 미래,{" "}
+              <span className="text-gradient bg-linear-to-r from-indigo-500 to-purple-600 bg-clip-text text-transparent">
+                자동화하세요
+              </span>
+            </h1>
+            <p className="max-w-2xl leading-normal text-muted-foreground sm:text-xl sm:leading-8">
+              AutoTrade는 최첨단 알고리즘을 통해 당신의 암호화폐 투자를 24시간
+              관리합니다. 감정에 휘둘리지 않는 투자를 경험하세요.
+            </p>
+            <div className="space-x-4">
+              {user ? (
+                <Button asChild size="lg" className="h-11 px-8">
+                  <Link href={AUTH_ROUTES.DASHBOARD}>대시보드로 이동</Link>
+                </Button>
+              ) : (
+                <Button asChild size="lg" className="h-11 px-8">
+                  <Link href={AUTH_ROUTES.LOGIN}>지금 시작하기</Link>
+                </Button>
+              )}
+              {!user && (
+                <Button
+                  asChild
+                  variant="outline"
+                  size="lg"
+                  className="h-11 px-8"
+                >
+                  <Link href={AUTH_ROUTES.LOGIN}>데모 체험</Link>
+                </Button>
+              )}
+            </div>
+          </div>
+        </section>
+
+        <section className="container space-y-6 bg-slate-50 py-8 dark:bg-transparent md:py-12 lg:py-24">
+          <div className="mx-auto flex max-w-[58rem] flex-col items-center space-y-4 text-center">
+            <h2 className="font-heading text-3xl leading-[1.1] sm:text-3xl md:text-6xl">
+              주요 기능
+            </h2>
+            <p className="max-w-[85%] leading-normal text-muted-foreground sm:text-lg sm:leading-7">
+              성공적인 투자를 위해 필요한 모든 도구가 준비되어 있습니다.
+            </p>
+          </div>
+          <div className="mx-auto grid justify-center gap-4 sm:grid-cols-2 md:max-w-5xl md:grid-cols-3">
+            {[
+              {
+                title: "실시간 모니터링",
+                description:
+                  "시장 상황을 실시간으로 분석하고 최적의 타이밍을 포착합니다.",
+              },
+              {
+                title: "알고리즘 트레이딩",
+                description:
+                  "검증된 전략을 기반으로 자동으로 매수와 매도를 실행합니다.",
+              },
+              {
+                title: "포트폴리오 관리",
+                description:
+                  "자산 분배와 리스크 관리를 통해 안정적인 수익을 추구합니다.",
+              },
+            ].map((feature, index) => (
+              <div
+                key={index}
+                className="relative overflow-hidden rounded-lg border bg-background p-2"
+              >
+                <div className="flex h-[180px] flex-col justify-between rounded-md p-6">
+                  <div className="space-y-2">
+                    <h3 className="font-bold">{feature.title}</h3>
+                    <p className="text-sm text-muted-foreground">
+                      {feature.description}
+                    </p>
+                  </div>
+                </div>
+              </div>
+            ))}
+          </div>
+        </section>
+      </main>
+    </div>
+  );
+}

app/(main)/dashboard/page.tsx

@@ -0,0 +1,103 @@
+import { createClient } from "@/utils/supabase/server";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { Activity, CreditCard, DollarSign, Users } from "lucide-react";
+
+export default async function DashboardPage() {
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+
+  return (
+    <div className="flex-1 space-y-4 p-8 pt-6">
+      <div className="flex items-center justify-between space-y-2">
+        <h2 className="text-3xl font-bold tracking-tight">대시보드</h2>
+      </div>
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
+        <Card>
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium">총 수익</CardTitle>
+            <DollarSign className="h-4 w-4 text-muted-foreground" />
+          </CardHeader>
+          <CardContent>
+            <div className="text-2xl font-bold">$45,231.89</div>
+            <p className="text-xs text-muted-foreground">지난달 대비 +20.1%</p>
+          </CardContent>
+        </Card>
+        <Card>
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium">구독자</CardTitle>
+            <Users className="h-4 w-4 text-muted-foreground" />
+          </CardHeader>
+          <CardContent>
+            <div className="text-2xl font-bold">+2350</div>
+            <p className="text-xs text-muted-foreground">지난달 대비 +180.1%</p>
+          </CardContent>
+        </Card>
+        <Card>
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium">판매량</CardTitle>
+            <CreditCard className="h-4 w-4 text-muted-foreground" />
+          </CardHeader>
+          <CardContent>
+            <div className="text-2xl font-bold">+12,234</div>
+            <p className="text-xs text-muted-foreground">지난달 대비 +19%</p>
+          </CardContent>
+        </Card>
+        <Card>
+          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
+            <CardTitle className="text-sm font-medium">현재 활동 중</CardTitle>
+            <Activity className="h-4 w-4 text-muted-foreground" />
+          </CardHeader>
+          <CardContent>
+            <div className="text-2xl font-bold">+573</div>
+            <p className="text-xs text-muted-foreground">지난 시간 대비 +201</p>
+          </CardContent>
+        </Card>
+      </div>
+      <div className="grid gap-4 grid-cols-1 md:grid-cols-2 lg:grid-cols-7">
+        <Card className="col-span-4">
+          <CardHeader>
+            <CardTitle>개요</CardTitle>
+          </CardHeader>
+          <CardContent className="pl-2">
+            {/* Chart placeholder */}
+            <div className="h-[200px] w-full bg-slate-100 dark:bg-slate-800 rounded-md flex items-center justify-center text-muted-foreground">
+              차트 영역 (준비 중)
+            </div>
+          </CardContent>
+        </Card>
+        <Card className="col-span-3">
+          <CardHeader>
+            <CardTitle>최근 활동</CardTitle>
+            <div className="text-sm text-muted-foreground">
+              이번 달 265건의 거래가 있었습니다.
+            </div>
+          </CardHeader>
+          <CardContent>
+            <div className="space-y-8">
+              <div className="flex items-center">
+                <div className="ml-4 space-y-1">
+                  <p className="text-sm font-medium leading-none">
+                    비트코인 매수
+                  </p>
+                  <p className="text-sm text-muted-foreground">BTC/USDT</p>
+                </div>
+                <div className="ml-auto font-medium">+$1,999.00</div>
+              </div>
+              <div className="flex items-center">
+                <div className="ml-4 space-y-1">
+                  <p className="text-sm font-medium leading-none">
+                    이더리움 매도
+                  </p>
+                  <p className="text-sm text-muted-foreground">ETH/USDT</p>
+                </div>
+                <div className="ml-auto font-medium">+$39.00</div>
+              </div>
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+    </div>
+  );
+}

app/(main)/page.tsx

@@ -1,63 +0,0 @@
-export default function DashboardPage() {
-  return (
-    <div className="space-y-6">
-      <div>
-        <h2 className="text-3xl font-bold tracking-tight">대시보드</h2>
-        <p className="text-muted-foreground">
-          자동매매 시스템 현황을 한눈에 확인하세요.
-        </p>
-      </div>
-      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
-        {/* 예시 카드들 */}
-        <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
-          <div className="flex flex-col space-y-1.5 p-6 pt-0 px-0">
-            <span className="text-sm font-medium text-muted-foreground">
-              총 자산
-            </span>
-            <span className="text-2xl font-bold">₩ 0</span>
-          </div>
-        </div>
-        <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
-          <div className="flex flex-col space-y-1.5 p-6 pt-0 px-0">
-            <span className="text-sm font-medium text-muted-foreground">
-              평가 손익
-            </span>
-            <span className="text-2xl font-bold text-green-500">+0%</span>
-          </div>
-        </div>
-        <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
-          <div className="flex flex-col space-y-1.5 p-6 pt-0 px-0">
-            <span className="text-sm font-medium text-muted-foreground">
-              실현 손익
-            </span>
-            <span className="text-2xl font-bold">₩ 0</span>
-          </div>
-        </div>
-        <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
-          <div className="flex flex-col space-y-1.5 p-6 pt-0 px-0">
-            <span className="text-sm font-medium text-muted-foreground">
-              가동 봇
-            </span>
-            <span className="text-2xl font-bold">0개</span>
-          </div>
-        </div>
-      </div>
-
-      {/* 차트나 로그 영역 예시 */}
-      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-7">
-        <div className="col-span-4 rounded-xl border bg-card text-card-foreground shadow min-h-[300px] p-6">
-          <div className="text-lg font-semibold mb-4">매매 추입</div>
-          <div className="flex items-center justify-center h-full text-muted-foreground">
-            차트 영역 준비중...
-          </div>
-        </div>
-        <div className="col-span-3 rounded-xl border bg-card text-card-foreground shadow min-h-[300px] p-6">
-          <div className="text-lg font-semibold mb-4">최근 활동</div>
-          <div className="flex items-center justify-center h-full text-muted-foreground">
-            로그 영역 준비중...
-          </div>
-        </div>
-      </div>
-    </div>
-  );
-}

app/layout.tsx

@@ -14,8 +14,8 @@ const geistMono = Geist_Mono({
 });
 
 export const metadata: Metadata = {
-  title: "Create Next App",
-  description: "Generated by create next app",
+  title: "AutoTrade",
+  description: "Automated Crypto Trading Platform",
 };
 
 export default function RootLayout({

features/auth/actions.ts

@@ -285,7 +285,7 @@ export async function signout() {
   revalidatePath("/", "layout");
 
   // 3. 로그인 페이지로 리다이렉트
-  redirect("/login");
+  redirect("/");
 }
 
 /**

features/auth/components/login-form.tsx

@@ -2,6 +2,7 @@
 
 import { useState } from "react";
 import Link from "next/link";
+import { AUTH_ROUTES } from "@/features/auth/constants";
 import {
   login,
   signInWithGoogle,
@@ -122,7 +123,7 @@ export default function LoginForm() {
           </div>
           {/* 비밀번호 찾기 링크 */}
           <Link
-            href="/forgot-password"
+            href={AUTH_ROUTES.FORGOT_PASSWORD}
             className="text-sm font-medium text-gray-700 hover:text-black dark:text-gray-300 dark:hover:text-white"
           >
             비밀번호 찾기
@@ -150,7 +151,7 @@ export default function LoginForm() {
         <p className="text-center text-sm text-gray-600 dark:text-gray-400">
           계정이 없으신가요?{" "}
           <Link
-            href="/signup"
+            href={AUTH_ROUTES.SIGNUP}
             className="font-semibold text-gray-900 transition-colors hover:text-black dark:text-gray-100 dark:hover:text-white"
           >
             회원가입 하기

features/auth/constants.ts

@@ -180,6 +180,7 @@ export const AUTH_ROUTES = {
   AUTH_CONFIRM: "/auth/confirm",
   AUTH_CALLBACK: "/auth/callback",
   HOME: "/",
+  DASHBOARD: "/dashboard",
 } as const;
 
 /**

features/layout/components/header.tsx

@@ -2,6 +2,7 @@ import { createClient } from "@/utils/supabase/server";
 import Link from "next/link";
 import { UserMenu } from "./user-menu";
 import { Button } from "@/components/ui/button";
+import { AUTH_ROUTES } from "@/features/auth/constants";
 
 export async function Header() {
   const supabase = await createClient();
@@ -12,7 +13,7 @@ export async function Header() {
   return (
     <header className="sticky top-0 z-40 flex h-14 w-full items-center justify-between border-b border-zinc-200 bg-white/75 px-6 backdrop-blur-md transition-all dark:border-zinc-800 dark:bg-black/75">
       <div className="flex items-center gap-2">
-        <Link href="/" className="flex items-center gap-2">
+        <Link href={AUTH_ROUTES.DASHBOARD} className="flex items-center gap-2">
           <div className="h-6 w-6 rounded-md bg-zinc-900 dark:bg-zinc-50" />
           <span className="text-lg font-bold tracking-tight text-zinc-900 dark:text-zinc-50">
             AutoTrade
@@ -25,7 +26,7 @@ export async function Header() {
           <UserMenu user={user} />
         ) : (
           <Button asChild variant="default" size="sm">
-            <Link href="/login">로그인</Link>
+            <Link href={AUTH_ROUTES.LOGIN}>로그인</Link>
           </Button>
         )}
       </div>

package-lock.json

@@ -34,6 +34,7 @@
         "zustand": "^5.0.11"
       },
       "devDependencies": {
+        "@playwright/test": "^1.58.1",
         "@tailwindcss/postcss": "^4",
         "@types/node": "^20",
         "@types/react": "^19",
@@ -1298,6 +1299,22 @@
         "node": ">=12.4.0"
       }
     },
+    "node_modules/@playwright/test": {
+      "version": "1.58.1",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.58.1.tgz",
+      "integrity": "sha512-6LdVIUERWxQMmUSSQi0I53GgCBYgM2RpGngCPY7hSeju+VrKjq3lvs7HpJoPbDiY5QM5EYRtRX5fvrinnMAz3w==",
+      "devOptional": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright": "1.58.1"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@radix-ui/number": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@radix-ui/number/-/number-1.1.1.tgz",
@@ -6972,6 +6989,21 @@
         }
       }
     },
+    "node_modules/fsevents": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
+      "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
+      }
+    },
     "node_modules/function-bind": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
@@ -8715,6 +8747,38 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/playwright": {
+      "version": "1.58.1",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.58.1.tgz",
+      "integrity": "sha512-+2uTZHxSCcxjvGc5C891LrS1/NlxglGxzrC4seZiVjcYVQfUa87wBL6rTDqzGjuoWNjnBzRqKmF6zRYGMvQUaQ==",
+      "devOptional": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright-core": "1.58.1"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "fsevents": "2.3.2"
+      }
+    },
+    "node_modules/playwright-core": {
+      "version": "1.58.1",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.58.1.tgz",
+      "integrity": "sha512-bcWzOaTxcW+VOOGBCQgnaKToLJ65d6AqfLVKEWvexyS3AS6rbXl+xdpYRMGSRBClPvyj44njOWoxjNdL/H9UNg==",
+      "devOptional": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "playwright-core": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/possible-typed-array-names": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/possible-typed-array-names/-/possible-typed-array-names-1.1.0.tgz",

package.json

@@ -35,6 +35,7 @@
     "zustand": "^5.0.11"
   },
   "devDependencies": {
+    "@playwright/test": "^1.58.1",
     "@tailwindcss/postcss": "^4",
     "@types/node": "^20",
     "@types/react": "^19",

playwright.config.ts

@@ -0,0 +1,42 @@
+import { defineConfig, devices } from "@playwright/test";
+
+/**
+ * See https://playwright.dev/docs/test-configuration
+ */
+export default defineConfig({
+  testDir: "./tests/e2e",
+  /* Run tests in files in parallel */
+  fullyParallel: true,
+  /* Fail the build on CI if you accidentally left test.only in the source code. */
+  forbidOnly: !!process.env.CI,
+  /* Retry on CI only */
+  retries: process.env.CI ? 2 : 0,
+  /* Opt out of parallel tests on CI. */
+  workers: process.env.CI ? 1 : undefined,
+  /* Reporter to use. See https://playwright.dev/docs/test-reporters */
+  reporter: "html",
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    /* Base URL to use in actions like `await page.goto('/')`. */
+    baseURL: "http://localhost:3001",
+
+    /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+    trace: "on-first-retry",
+  },
+
+  /* Configure projects for major browsers */
+  projects: [
+    {
+      name: "chromium",
+      use: { ...devices["Desktop Chrome"] },
+    },
+  ],
+
+  /* Run your local dev server before starting the tests */
+  webServer: {
+    command: "npm run dev",
+    url: "http://localhost:3001",
+    reuseExistingServer: !process.env.CI,
+    timeout: 120 * 1000,
+  },
+});

test-results/.last-run.json

@@ -0,0 +1,4 @@
+{
+  "status": "passed",
+  "failedTests": []
+}

tests/e2e/auth.spec.ts

@@ -0,0 +1,29 @@
+import { test, expect } from "@playwright/test";
+
+test.describe("Authentication Flow", () => {
+  test("Guest should see Landing Page", async ({ page }) => {
+    await page.goto("/");
+    await expect(page).toHaveTitle(/AutoTrade/i);
+    await expect(
+      page.getByRole("heading", { name: "투자의 미래, 자동화하세요" }),
+    ).toBeVisible();
+    await expect(
+      page.getByRole("link", { name: "로그인" }).first(),
+    ).toBeVisible();
+  });
+
+  test("Guest trying to access /dashboard should be redirected to /login", async ({
+    page,
+  }) => {
+    await page.goto("/dashboard");
+    await expect(page).toHaveURL(/\/login/);
+    await expect(page.getByRole("button", { name: "로그인" })).toBeVisible();
+  });
+
+  test("Login page should load correctly", async ({ page }) => {
+    await page.goto("/login");
+    await expect(page.getByLabel("이메일", { exact: true })).toBeVisible();
+    await expect(page.getByLabel("비밀번호")).toBeVisible();
+    await expect(page.getByRole("button", { name: "로그인" })).toBeVisible();
+  });
+});

utils/supabase/middleware.ts

@@ -9,17 +9,24 @@ import {
 /**
  * 서버 사이드 인증 상태를 관리하고 보호된 라우트를 처리합니다.
  */
+// 서버 사이드 인증 상태를 관리하고 보호된 라우트를 처리합니다.
 export async function updateSession(request: NextRequest) {
+  // 1. 초기 Supabase 응답 객체 생성
+  // request 헤더 등을 포함하여 초기 상태 설정
   let supabaseResponse = NextResponse.next({ request });
 
+  // 2. Supabase 클라이언트 생성 (SSR 전용)
+  // 쿠키 조작을 위한 setAll/getAll 메서드 오버라이딩 포함
   const supabase = createServerClient(
     process.env.NEXT_PUBLIC_SUPABASE_URL!,
     process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
     {
       cookies: {
+        // 쿠키 가져오기
         getAll() {
           return request.cookies.getAll();
         },
+        // 쿠키 설정하기 (요청 및 응답 객체 모두에 적용)
         setAll(cookiesToSet) {
           cookiesToSet.forEach(({ name, value }) =>
             request.cookies.set(name, value),
@@ -33,13 +40,18 @@ export async function updateSession(request: NextRequest) {
     },
   );
 
+  // 3. 현재 사용자 정보 조회
+  // getUser() 사용이 보안상 안전함 (getSession보다 권장됨)
   const {
     data: { user },
   } = await supabase.auth.getUser();
 
+  // 4. 현재 요청 URL과 복구용 쿠키 확인
   const { pathname } = request.nextUrl;
   const recoveryCookie = request.cookies.get(RECOVERY_COOKIE_NAME)?.value;
 
+  // 5. 복구 쿠키가 있는데 로그인이 안 된 경우 (세션 만료 등)
+  // 로그인 페이지로 강제 리다이렉트 후 복구 쿠키 삭제
   if (recoveryCookie && !user) {
     const response = NextResponse.redirect(
       new URL(AUTH_ROUTES.LOGIN, request.url),
@@ -48,24 +60,39 @@ export async function updateSession(request: NextRequest) {
     return response;
   }
 
+  // 6. 현재 페이지가 비밀번호 재설정 관련 라우트인지 확인
   const isRecoveryRoute =
     pathname.startsWith(AUTH_ROUTES.RESET_PASSWORD) ||
     pathname.startsWith(AUTH_ROUTES.AUTH_CONFIRM);
 
+  // 7. 복구 쿠키가 있는데 재설정 라우트가 아닌 다른 곳으로 가려는 경우
+  // 강제로 비밀번호 재설정 페이지로 리다이렉트 (보안 조치)
   if (recoveryCookie && !isRecoveryRoute) {
     return NextResponse.redirect(
       new URL(AUTH_ROUTES.RESET_PASSWORD, request.url),
     );
   }
 
+  // 8. 현재 페이지가 로그인/회원가입 등 공용 인증 페이지인지 확인
   const isAuthPage = PUBLIC_AUTH_PAGES.some((page) =>
     pathname.startsWith(page),
   );
 
-  if (!user && !isAuthPage) {
+  // 9. 비로그인 사용자 접근 제어
+  // - 유저가 없음 (!user)
+  // - 인증 페이지 아님 (!isAuthPage)
+  // - 메인 페이지(홈) 아님 (pathname !== AUTH_ROUTES.HOME)
+  // -> 로그인 페이지로 리다이렉트
+  if (!user && !isAuthPage && pathname !== AUTH_ROUTES.HOME) {
     return NextResponse.redirect(new URL(AUTH_ROUTES.LOGIN, request.url));
   }
 
+  // 10. 로그인 사용자 접근 제어 (인증 페이지 접근 시)
+  // - 유저가 있음 (user)
+  // - 인증 페이지 접근 시도 (isAuthPage) - 예: 이미 로그인했는데 /login 접근
+  // - 비밀번호 재설정은 아님
+  // - 복구 모드 아님
+  // -> 메인 페이지로 리다이렉트
   if (
     user &&
     isAuthPage &&
@@ -75,5 +102,6 @@ export async function updateSession(request: NextRequest) {
     return NextResponse.redirect(new URL(AUTH_ROUTES.HOME, request.url));
   }
 
+  // 11. 최종 응답 반환 (변경된 쿠키 등이 포함됨)
   return supabaseResponse;
 }