Add JSON validation for unlock steps in admin specials management with tooltip error display

app/[locale]/admin/page.tsx

@@ -115,6 +115,7 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
     const [newSpecialSubtitle, setNewSpecialSubtitle] = useState({ de: '', en: '' });
     const [newSpecialMaxAttempts, setNewSpecialMaxAttempts] = useState(7);
     const [newSpecialUnlockSteps, setNewSpecialUnlockSteps] = useState('[2,4,7,11,16,30,60]');
+    const [newSpecialUnlockStepsError, setNewSpecialUnlockStepsError] = useState<string | null>(null);
     const [newSpecialLaunchDate, setNewSpecialLaunchDate] = useState('');
     const [newSpecialEndDate, setNewSpecialEndDate] = useState('');
     const [newSpecialCurator, setNewSpecialCurator] = useState('');
@@ -124,6 +125,7 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
     const [editSpecialSubtitle, setEditSpecialSubtitle] = useState({ de: '', en: '' });
     const [editSpecialMaxAttempts, setEditSpecialMaxAttempts] = useState(7);
     const [editSpecialUnlockSteps, setEditSpecialUnlockSteps] = useState('[2,4,7,11,16,30,60]');
+    const [editSpecialUnlockStepsError, setEditSpecialUnlockStepsError] = useState<string | null>(null);
     const [editSpecialLaunchDate, setEditSpecialLaunchDate] = useState('');
     const [editSpecialEndDate, setEditSpecialEndDate] = useState('');
     const [editSpecialCurator, setEditSpecialCurator] = useState('');
@@ -239,6 +241,25 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
         }
     };
 
+    // Validate JSON for unlock steps
+    const validateUnlockSteps = (value: string): string | null => {
+        if (!value.trim()) {
+            return t('unlockStepsRequired');
+        }
+        try {
+            const parsed = JSON.parse(value);
+            if (!Array.isArray(parsed)) {
+                return t('unlockStepsMustBeArray');
+            }
+            if (parsed.some((item: any) => typeof item !== 'number' || item < 1)) {
+                return t('unlockStepsMustBePositiveNumbers');
+            }
+            return null;
+        } catch (e) {
+            return t('unlockStepsInvalidJson');
+        }
+    };
+
     const handleLogout = () => {
         localStorage.removeItem('hoerdle_admin_auth');
         setIsAuthenticated(false);
@@ -352,6 +373,15 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
     const handleCreateSpecial = async (e: React.FormEvent) => {
         e.preventDefault();
         if (!newSpecialName.de.trim() && !newSpecialName.en.trim()) return;
+        
+        // Validate unlock steps
+        const unlockStepsError = validateUnlockSteps(newSpecialUnlockSteps);
+        if (unlockStepsError) {
+            setNewSpecialUnlockStepsError(unlockStepsError);
+            return;
+        }
+        setNewSpecialUnlockStepsError(null);
+        
         const res = await fetch('/api/specials', {
             method: 'POST',
             headers: getAuthHeaders(),
@@ -370,12 +400,14 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
             setNewSpecialSubtitle({ de: '', en: '' });
             setNewSpecialMaxAttempts(7);
             setNewSpecialUnlockSteps('[2,4,7,11,16,30,60]');
+            setNewSpecialUnlockStepsError(null);
             setNewSpecialLaunchDate('');
             setNewSpecialEndDate('');
             setNewSpecialCurator('');
             fetchSpecials();
         } else {
-            alert('Failed to create special');
+            const errorData = await res.json().catch(() => ({}));
+            alert(errorData.error || 'Failed to create special');
         }
     };
 
@@ -455,6 +487,7 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
         setEditSpecialSubtitle(special.subtitle ? (typeof special.subtitle === 'string' ? { de: special.subtitle, en: special.subtitle } : special.subtitle) : { de: '', en: '' });
         setEditSpecialMaxAttempts(special.maxAttempts);
         setEditSpecialUnlockSteps(special.unlockSteps);
+        setEditSpecialUnlockStepsError(null);
         setEditSpecialLaunchDate(special.launchDate ? new Date(special.launchDate).toISOString().split('T')[0] : '');
         setEditSpecialEndDate(special.endDate ? new Date(special.endDate).toISOString().split('T')[0] : '');
         setEditSpecialCurator(special.curator || '');
@@ -462,6 +495,15 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
 
     const saveEditedSpecial = async () => {
         if (editingSpecialId === null) return;
+        
+        // Validate unlock steps
+        const unlockStepsError = validateUnlockSteps(editSpecialUnlockSteps);
+        if (unlockStepsError) {
+            setEditSpecialUnlockStepsError(unlockStepsError);
+            return;
+        }
+        setEditSpecialUnlockStepsError(null);
+        
         const res = await fetch('/api/specials', {
             method: 'PUT',
             headers: getAuthHeaders(),
@@ -478,9 +520,11 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
         });
         if (res.ok) {
             setEditingSpecialId(null);
+            setEditSpecialUnlockStepsError(null);
             fetchSpecials();
         } else {
-            alert('Failed to update special');
+            const errorData = await res.json().catch(() => ({}));
+            alert(errorData.error || 'Failed to update special');
         }
     };
 
@@ -1300,8 +1344,38 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
                             <input type="number" placeholder={t('maxAttempts')} value={newSpecialMaxAttempts} onChange={e => setNewSpecialMaxAttempts(Number(e.target.value))} className="form-input" min={1} style={{ width: '80px' }} />
                         </div>
                         <div style={{ display: 'flex', flexDirection: 'column' }}>
-                            <label style={{ fontSize: '0.75rem', color: '#666' }}>{t('unlockSteps')}</label>
-                            <input type="text" placeholder={t('unlockSteps')} value={newSpecialUnlockSteps} onChange={e => setNewSpecialUnlockSteps(e.target.value)} className="form-input" style={{ width: '200px' }} />
+                            <label style={{ fontSize: '0.75rem', color: '#666', display: 'flex', alignItems: 'center', gap: '0.25rem' }}>
+                                {t('unlockSteps')}
+                                {newSpecialUnlockStepsError && (
+                                    <span 
+                                        title={newSpecialUnlockStepsError}
+                                        style={{ 
+                                            color: '#ef4444', 
+                                            cursor: 'help',
+                                            fontSize: '0.875rem'
+                                        }}
+                                    >
+                                        ⚠️
+                                    </span>
+                                )}
+                            </label>
+                            <input 
+                                type="text" 
+                                placeholder={t('unlockSteps')} 
+                                value={newSpecialUnlockSteps} 
+                                onChange={e => {
+                                    const value = e.target.value;
+                                    setNewSpecialUnlockSteps(value);
+                                    const error = validateUnlockSteps(value);
+                                    setNewSpecialUnlockStepsError(error);
+                                }} 
+                                className="form-input" 
+                                title={newSpecialUnlockStepsError || undefined}
+                                style={{ 
+                                    width: '200px',
+                                    borderColor: newSpecialUnlockStepsError ? '#ef4444' : undefined
+                                }} 
+                            />
                         </div>
                         <div style={{ display: 'flex', flexDirection: 'column' }}>
                             <label style={{ fontSize: '0.75rem', color: '#666' }}>{t('launchDate')}</label>
@@ -1315,7 +1389,18 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
                             <label style={{ fontSize: '0.75rem', color: '#666' }}>{t('curator')}</label>
                             <input type="text" placeholder={t('curator')} value={newSpecialCurator} onChange={e => setNewSpecialCurator(e.target.value)} className="form-input" />
                         </div>
-                        <button type="submit" className="btn-primary" style={{ height: '38px' }}>{t('addSpecial')}</button>
+                        <button 
+                            type="submit" 
+                            className="btn-primary" 
+                            style={{ 
+                                height: '38px',
+                                opacity: newSpecialUnlockStepsError ? 0.5 : 1,
+                                cursor: newSpecialUnlockStepsError ? 'not-allowed' : 'pointer'
+                            }}
+                            disabled={!!newSpecialUnlockStepsError}
+                        >
+                            {t('addSpecial')}
+                        </button>
                     </div>
                 </form>
                 <div style={{ display: 'flex', flexWrap: 'wrap', gap: '0.5rem' }}>
@@ -1379,8 +1464,37 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
                                 <input type="number" value={editSpecialMaxAttempts} onChange={e => setEditSpecialMaxAttempts(Number(e.target.value))} className="form-input" min={1} style={{ width: '80px' }} />
                             </div>
                             <div style={{ display: 'flex', flexDirection: 'column' }}>
-                                <label style={{ fontSize: '0.75rem', color: '#666' }}>{t('unlockSteps')}</label>
-                                <input type="text" value={editSpecialUnlockSteps} onChange={e => setEditSpecialUnlockSteps(e.target.value)} className="form-input" style={{ width: '200px' }} />
+                                <label style={{ fontSize: '0.75rem', color: '#666', display: 'flex', alignItems: 'center', gap: '0.25rem' }}>
+                                    {t('unlockSteps')}
+                                    {editSpecialUnlockStepsError && (
+                                        <span 
+                                            title={editSpecialUnlockStepsError}
+                                            style={{ 
+                                                color: '#ef4444', 
+                                                cursor: 'help',
+                                                fontSize: '0.875rem'
+                                            }}
+                                        >
+                                            ⚠️
+                                        </span>
+                                    )}
+                                </label>
+                                <input 
+                                    type="text" 
+                                    value={editSpecialUnlockSteps} 
+                                    onChange={e => {
+                                        const value = e.target.value;
+                                        setEditSpecialUnlockSteps(value);
+                                        const error = validateUnlockSteps(value);
+                                        setEditSpecialUnlockStepsError(error);
+                                    }} 
+                                    className="form-input" 
+                                    title={editSpecialUnlockStepsError || undefined}
+                                    style={{ 
+                                        width: '200px',
+                                        borderColor: editSpecialUnlockStepsError ? '#ef4444' : undefined
+                                    }} 
+                                />
                             </div>
                             <div style={{ display: 'flex', flexDirection: 'column' }}>
                                 <label style={{ fontSize: '0.75rem', color: '#666' }}>{t('launchDate')}</label>
@@ -1394,7 +1508,18 @@ export default function AdminPage({ params }: { params: { locale: string } }) {
                                 <label style={{ fontSize: '0.75rem', color: '#666' }}>{t('curator')}</label>
                                 <input type="text" value={editSpecialCurator} onChange={e => setEditSpecialCurator(e.target.value)} className="form-input" />
                             </div>
-                            <button onClick={saveEditedSpecial} className="btn-primary" style={{ height: '38px' }}>{t('save')}</button>
+                            <button 
+                                onClick={saveEditedSpecial} 
+                                className="btn-primary" 
+                                style={{ 
+                                    height: '38px',
+                                    opacity: editSpecialUnlockStepsError ? 0.5 : 1,
+                                    cursor: editSpecialUnlockStepsError ? 'not-allowed' : 'pointer'
+                                }}
+                                disabled={!!editSpecialUnlockStepsError}
+                            >
+                                {t('save')}
+                            </button>
                             <button onClick={() => setEditingSpecialId(null)} className="btn-secondary" style={{ height: '38px' }}>{t('cancel')}</button>
                         </div>
                     </div>