로그인 · 회원가입 흐름을 서버 계정·약관 동의와 연결

app/lib/features/auth/login_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 
 import '../../core/firebase/firebase_boot.dart';
+import '../../core/i18n/app_locale.dart';
 import '../../core/theme/tokens.dart';
 import '../../core/ui/app_icons.dart';
 import 'auth.dart';
@@ -62,14 +63,14 @@ class _LoginScreenState extends State<LoginScreen> {
     if (!mounted) return;
     setState(() {
       _busy = false;
-      _notice = authNotice(outcome);
+      _notice = authNotice(outcome, context.l10n);
     });
   }
 
   Future<void> _resetPassword() async {
     final email = _email.text.trim();
     if (email.isEmpty) {
-      setState(() => _notice = '재설정 메일을 받으실 이메일을 먼저 입력해 주세요.');
+      setState(() => _notice = context.l10n.authResetNeedEmail);
       return;
     }
     final impl = widget.auth.qaEmailProvider;
@@ -81,8 +82,8 @@ class _LoginScreenState extends State<LoginScreen> {
       _busy = false;
       // 성공해도 계정 존재 여부를 알려 주지 않는다. 가입된 이메일을 훑을 수 있다.
       _notice = outcome is AuthFailed
-          ? authNotice(outcome)
-          : '입력하신 주소로 재설정 안내를 보냈습니다.';
+          ? authNotice(outcome, context.l10n)
+          : context.l10n.authResetSent;
     });
   }
 
@@ -171,12 +172,12 @@ class _LoginScreenState extends State<LoginScreen> {
                       backgroundColor: AppColors.cosmicAccent,
                       foregroundColor: AppColors.onCosmicAccent,
                     ),
-                    child: const Text('로그인'),
+                    child: Text(context.l10n.authLogin),
                   ),
                   const SizedBox(height: AppSpace.s4),
                   AuthSwitchRow(
-                    question: '팬우주는 처음이세요?',
-                    action: '회원가입',
+                    question: context.l10n.authFirstTime,
+                    action: context.l10n.authSignup,
                     onTap: () => _open(signUp: true),
                   ),
                 ],
@@ -216,7 +217,7 @@ class _SimpleLoginScreenState extends State<SimpleLoginScreen> {
       if (agreed != true || !mounted) return;
     }
     setState(() => _busy = true);
-    final outcome = await widget.auth.signIn(provider);
+    final outcome = await widget.auth.signIn(provider, signUp: widget.signUp);
     if (!mounted) return;
     setState(() => _busy = false);
     // 키 대기 제공자는 안내 다이얼로그로 끊는다 — 눌렀는데 아무 일도 안 일어나면
@@ -226,7 +227,7 @@ class _SimpleLoginScreenState extends State<SimpleLoginScreen> {
       return;
     }
     if (!mounted) return;
-    setState(() => _notice = authNotice(outcome));
+    setState(() => _notice = authNotice(outcome, context.l10n));
   }
 
   Future<void> _showNotConfigured(AuthNotConfigured outcome) async {
@@ -234,15 +235,17 @@ class _SimpleLoginScreenState extends State<SimpleLoginScreen> {
     await showDialog<void>(
       context: context,
       builder: (context) => AlertDialog(
-        title: Text('$name 로그인 준비 중'),
+        title: Text(context.l10n.authNotConfiguredTitle(name)),
         content: Text(
-          '$name 로그인은 발주사 키가 들어오면 열립니다.\n\n'
-          '필요한 항목\n· ${outcome.missing.join('\n· ')}',
+          context.l10n.authNotConfiguredBody(
+            name,
+            outcome.missing.join('\n· '),
+          ),
         ),
         actions: [
           TextButton(
             onPressed: () => Navigator.of(context).pop(),
-            child: const Text('확인'),
+            child: Text(context.l10n.commonConfirm),
           ),
         ],
       ),
@@ -294,8 +297,8 @@ class _SimpleLoginScreenState extends State<SimpleLoginScreen> {
                     const SizedBox(height: AppSpace.s5),
                     Text(
                       signUp
-                          ? '가장 편한 방법으로\n팬우주에 회원가입 하세요!'
-                          : '가장 편한 방법으로\n팬우주에 로그인하세요!',
+                          ? context.l10n.authSignupHeadline
+                          : context.l10n.authLoginHeadline,
                       textAlign: TextAlign.center,
                       style: const TextStyle(
                         fontFamily: AppFonts.body,
@@ -317,7 +320,11 @@ class _SimpleLoginScreenState extends State<SimpleLoginScreen> {
                   for (final p in providers) ...[
                     _ProviderButton(
                       provider: p.provider,
-                      label: providerButtonLabel(p.provider, signUp: signUp),
+                      label: providerButtonLabel(
+                        p.provider,
+                        signUp: signUp,
+                        l10n: context.l10n,
+                      ),
                       enabled: !_busy,
                       onPressed: () => _signIn(p.provider),
                     ),
@@ -329,13 +336,13 @@ class _SimpleLoginScreenState extends State<SimpleLoginScreen> {
                   ],
                   signUp
                       ? AuthSwitchRow(
-                          question: '이미 가입하셨나요?',
-                          action: '로그인',
+                          question: context.l10n.authAlreadyMember,
+                          action: context.l10n.authLogin,
                           onTap: _switchMode,
                         )
                       : AuthSwitchRow(
-                          question: '팬우주는 처음이세요?',
-                          action: '회원가입',
+                          question: context.l10n.authFirstTime,
+                          action: context.l10n.authSignup,
                           onTap: _switchMode,
                         ),
                 ],
@@ -357,26 +364,29 @@ const _figmaOrder = [
 
 /// 간편 로그인 · 회원가입 버튼 문구 — 시안 「Kakao로 로그인」 · 「Kakao로 가입하기」.
 /// [AuthProviderKind.label](「카카오로 시작하기」)은 설정 · 안내 문구가 쓰므로 따로 둔다.
-String providerButtonLabel(AuthProviderKind kind, {bool signUp = false}) =>
-    '${_names[kind]} ${signUp ? '가입하기' : '로그인'}';
+/// 제공자별 조사(ko 「LINE으로」)는 arb 의 select 가 맡는다. [l10n] 이 없으면 ko.
+String providerButtonLabel(
+  AuthProviderKind kind, {
+  bool signUp = false,
+  AppLocalizations? l10n,
+}) {
+  final t = l10n ?? koL10n;
+  return signUp
+      ? t.authProviderSignup(kind.name)
+      : t.authProviderLogin(kind.name);
+}
 
-/// 시안 버튼 문구의 제공자 표기. LINE 은 조사가 「으로」다.
-const _names = {
-  AuthProviderKind.apple: 'Apple로',
-  AuthProviderKind.google: 'Google로',
-  AuthProviderKind.kakao: 'Kakao로',
-  AuthProviderKind.line: 'LINE으로',
-  AuthProviderKind.email: '이메일로',
-};
-
-String? authNotice(AuthOutcome outcome) => switch (outcome) {
-  AuthSucceeded() => null,
-  AuthCancelled() => null,
-  AuthFailed(:final code, :final message) => '[$code] $message',
-  AuthNotConfigured(:final provider, :final missing) =>
-    '${provider.shortName} 로그인은 아직 준비 중입니다.\n'
-        '필요한 항목: ${missing.join(' · ')}',
-};
+String? authNotice(AuthOutcome outcome, [AppLocalizations? l10n]) =>
+    switch (outcome) {
+      AuthSucceeded() => null,
+      AuthCancelled() => null,
+      AuthFailed(:final code, :final message) => '[$code] $message',
+      AuthNotConfigured(:final provider, :final missing) =>
+        (l10n ?? koL10n).authNotConfiguredNotice(
+          provider.shortName,
+          missing.join(' · '),
+        ),
+    };
 
 TextStyle _abz(double size, Color color) => TextStyle(
   fontFamily: AppFonts.display,