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import { useMutation, useQueryClient } from '@tanstack/react-query';
import { AppDialog } from '@/components/common/AppDialog';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';
import { Textarea } from '@/components/ui/textarea';
import { Switch } from '@/components/ui/switch';
import {
Select,
SelectContent,
SelectItem,
SelectTrigger,
SelectValue,
} from '@/components/ui/select';
import { useToast } from '@/hooks/use-toast';
import { emailService, type EmailTemplate, type EmailTemplateUpdate } from '@/services/email.service';
import { adminService, type Configuration } from '@/services/admin.service';
import { useQuery } from '@tanstack/react-query';
import { Loader2, Send, CheckCircle2, XCircle } from 'lucide-react';
interface EmailTemplateEditDialogProps {
template: EmailTemplate | null;
open: boolean;
onOpenChange: (open: boolean) => void;
}
// Hardcoded template variables per template type
const TEMPLATE_VARIABLES: Record<string, string[]> = {
email_verification: [
'app_name',
'app_url',
'user_name',
'user_email',
'verification_url',
'token',
'expires_at',
],
password_reset: [
'app_name',
'app_url',
'user_name',
'user_email',
'reset_url',
'token',
'expires_at',
],
invitation: [
'app_name',
'app_url',
'user_name',
'user_email',
'invitation_url',
'token',
'account_name',
'invited_by',
'expires_at',
],
};
export const EmailTemplateEditDialog = ({
template,
open,
onOpenChange,
}: EmailTemplateEditDialogProps) => {
const [formData, setFormData] = useState<EmailTemplateUpdate>({});
const [testEmail, setTestEmail] = useState('');
const [selectedProvider, setSelectedProvider] = useState<string>('auto');
const [testResult, setTestResult] = useState<{ success: boolean; message: string } | null>(null);
const [previewHtml, setPreviewHtml] = useState<string>('');
const [previewLoading, setPreviewLoading] = useState(false);
const queryClient = useQueryClient();
const { toast } = useToast();
useEffect(() => {
if (template) {
setFormData({
subject: template.subject,
html_body: template.html_body,
text_body: template.text_body,
enabled: template.enabled,
});
}
}, [template]);
// Fetch enabled email providers (system and account)
const { data: providers } = useQuery({
queryKey: ['providers', template?.account_id],
queryFn: async () => {
const systemConfigs = await adminService.getSystemConfigs('email_providers');
let configs = [...systemConfigs];
if (template?.account_id && template.account_id !== '00000000-0000-0000-0000-000000000000') {
const accountConfigs = await adminService.getAccountConfigs(template.account_id, 'email_providers');
configs = [...configs, ...accountConfigs];
}
// Filter enabled only and deduplicate by provider_name
const uniqueProviders = new Map<string, Configuration>();
configs.filter(c => c.enabled).forEach(c => {
if (!uniqueProviders.has(c.provider_name)) {
uniqueProviders.set(c.provider_name, c);
}
});
return Array.from(uniqueProviders.values());
},
enabled: !!template,
});
const updateMutation = useMutation({
mutationFn: (data: EmailTemplateUpdate) =>
emailService.updateEmailTemplate(template!.id, data),
onSuccess: () => {
queryClient.invalidateQueries({ queryKey: ['email', 'templates'] });
toast({
title: 'Template Updated',
description: 'Email template has been updated successfully.',
});
onOpenChange(false);
},
onError: (error: any) => {
toast({
title: 'Error',
description: error.response?.data?.detail || 'Failed to update template.',
variant: 'destructive',
});
},
});
const testEmailMutation = useMutation({
mutationFn: (recipient: string) =>
emailService.sendTestEmail(template!.id, {
recipient_email: recipient,
variables: {},
provider: selectedProvider === 'auto' ? undefined : selectedProvider,
}),
onSuccess: (data) => {
setTestEmail('');
setTestResult({ success: true, message: data.message });
// Clear message after 5 seconds
setTimeout(() => setTestResult(null), 5000);
},
onError: (error: any) => {
setTestResult({
success: false,
message: error.response?.data?.detail || 'Failed to send test email.'
});
},
});
const handleSave = () => {
updateMutation.mutate(formData);
};
const handleSendTest = () => {
if (!testEmail) {
setTestResult({
success: false,
message: 'Please enter a recipient email address.'
});
return;
}
setTestResult(null);
testEmailMutation.mutate(testEmail);
};
// Preview Logic
const handlePreview = async (overrideData?: Partial<EmailTemplateUpdate>) => {
Iif (!template) return;
setPreviewLoading(true);
try {
// Create dummy variables for preview based on template type
const variables: Record<string, string> = {};
const keys = TEMPLATE_VARIABLES[template.template_type] || [];
keys.forEach(key => {
// Generate a dummy value for each variable
const readableKey = key.split('_').map(w => w.charAt(0).toUpperCase() + w.slice(1)).join(' ');
variables[key] = `[${readableKey}]`;
});
// If specific variables make sense to have realistic defaults, override them
Eif (keys.includes('app_name')) variables['app_name'] = 'SnackBase';
Eif (keys.includes('app_url')) variables['app_url'] = 'http://localhost:3000';
Eif (keys.includes('user_name')) variables['user_name'] = 'John Doe';
Eif (keys.includes('user_email')) variables['user_email'] = 'john@example.com';
const dataToRender = overrideData || formData;
const response = await emailService.renderEmailTemplate({
template_type: template.template_type,
variables,
locale: template.locale,
account_id: template.account_id,
subject: dataToRender.subject || template.subject,
html_body: dataToRender.html_body || template.html_body,
text_body: dataToRender.text_body || template.text_body,
});
setPreviewHtml(response.html_body);
} catch (error: any) {
toast({
title: 'Preview Failed',
description: 'Could not generate preview.',
variant: 'destructive',
});
} finally {
setPreviewLoading(false);
}
};
useEffect(() => {
if (template && open) {
const initialData = {
subject: template.subject,
html_body: template.html_body,
text_body: template.text_body,
enabled: template.enabled,
};
setFormData(initialData);
setPreviewHtml(''); // Clear old preview
handlePreview(initialData); // Use new data immediately
}
}, [template, open]);
const [focusedField, setFocusedField] = useState<'subject' | 'html_body' | 'text_body' | null>('subject');
const [cursorPosition, setCursorPosition] = useState<number | null>(null);
const handleInputFocus = (field: 'subject' | 'html_body' | 'text_body') => {
setFocusedField(field);
};
const handleInputSelect = (e: React.SyntheticEvent<HTMLInputElement | HTMLTextAreaElement>) => {
setCursorPosition(e.currentTarget.selectionStart);
};
const insertVariable = (variable: string) => {
const varText = `{{${variable}}}`;
setFormData((prev) => {
const field = focusedField || 'subject';
const currentValue = prev[field] || '';
// If we have a cursor position and it's for the current field, insert there
// Otherwise append to end
const insertPos = cursorPosition !== null ? cursorPosition : currentValue.length;
const newValue =
currentValue.slice(0, insertPos) +
varText +
currentValue.slice(insertPos);
// Update cursor position to be after inserted text
setCursorPosition(insertPos + varText.length);
return {
...prev,
[field]: newValue,
};
});
};
if (!template) return null;
const availableVariables = TEMPLATE_VARIABLES[template.template_type] || [];
return (
<AppDialog
open={open}
onOpenChange={onOpenChange}
title={`Edit Template: ${template.template_type} (${template.locale})`}
className="max-w-2xl"
footer={
<>
<div className="mr-auto flex items-center">
{template.is_builtin && (
<span className="text-xs text-muted-foreground bg-secondary px-2 py-1 rounded">
Built-in Template
</span>
)}
{testResult && (
<span className={`ml-4 text-sm flex items-center ${testResult.success ? 'text-green-600' : 'text-destructive'}`}>
{testResult.success ? (
<CheckCircle2 className="h-4 w-4 mr-1" />
) : (
<XCircle className="h-4 w-4 mr-1" />
)}
{testResult.message}
</span>
)}
</div>
<Button variant="outline" onClick={() => onOpenChange(false)}>
Cancel
</Button>
<Button onClick={handleSave} disabled={updateMutation.isPending}>
{updateMutation.isPending ? (
<>
<Loader2 className="mr-2 h-4 w-4 animate-spin" />
Saving...
</>
) : (
'Save Changes'
)}
</Button>
</>
}
>
<div className="space-y-4">
{/* Enabled Toggle & Vars */}
<div className="flex items-center justify-between">
<Label htmlFor="enabled">Enabled</Label>
<Switch
id="enabled"
checked={formData.enabled ?? template.enabled}
onCheckedChange={(checked) =>
setFormData((prev) => ({ ...prev, enabled: checked }))
}
/>
</div>
{/* Variable Selector */}
{availableVariables.length > 0 && (
<div className="space-y-2">
<Label>Insert Variable</Label>
<Select onValueChange={insertVariable}>
<SelectTrigger>
<SelectValue placeholder={`Insert into ${focusedField || 'subject'}`} />
</SelectTrigger>
<SelectContent>
{availableVariables.map((variable) => (
<SelectItem key={variable} value={variable}>
{`{{${variable}}}`}
</SelectItem>
))}
</SelectContent>
</Select>
</div>
)}
{/* Subject */}
<div className="space-y-2">
<Label htmlFor="subject">Subject</Label>
<Input
id="subject"
value={formData.subject ?? template.subject}
onChange={(e) =>
setFormData((prev) => ({ ...prev, subject: e.target.value }))
}
onFocus={() => handleInputFocus('subject')}
onSelect={handleInputSelect}
placeholder="Email subject line"
/>
</div>
{/* HTML Body */}
<div className="space-y-2">
<Label htmlFor="html_body">HTML Body</Label>
<Textarea
id="html_body"
value={formData.html_body ?? template.html_body}
onChange={(e) =>
setFormData((prev) => ({ ...prev, html_body: e.target.value }))
}
onFocus={() => handleInputFocus('html_body')}
onSelect={handleInputSelect}
placeholder="HTML email body"
className="font-mono text-sm resize-none min-h-[200px]"
/>
</div>
{/* Text Body */}
<div className="space-y-2">
<Label htmlFor="text_body">Text Body</Label>
<Textarea
id="text_body"
value={formData.text_body ?? template.text_body}
onChange={(e) =>
setFormData((prev) => ({ ...prev, text_body: e.target.value }))
}
onFocus={() => handleInputFocus('text_body')}
onSelect={handleInputSelect}
placeholder="Plain text email body"
className="font-mono text-sm min-h-[100px]"
/>
</div>
{/* Preview */}
<div className="space-y-2">
<div className="flex justify-between items-center">
<Label>Preview</Label>
<Button size="sm" variant="secondary" onClick={() => handlePreview()} disabled={previewLoading}>
{previewLoading ? <Loader2 className="h-3 w-3 animate-spin mr-1" /> : null}
Refresh Preview
</Button>
</div>
<div className="rounded-md border overflow-hidden bg-gray-50 dark:bg-gray-900" style={{ height: '300px' }}>
{previewHtml ? (
<iframe
srcDoc={previewHtml}
title="Email Preview"
className="w-full h-full border-0"
sandbox="allow-same-origin"
/>
) : (
<div className="flex items-center justify-center h-full text-muted-foreground">
Click Refresh to see preview
</div>
)}
</div>
</div>
{/* Test Email */}
<div className="space-y-2 border-t pt-4">
<Label>Send Test Email</Label>
<div className="grid grid-cols-[1fr,2fr,auto] gap-2 items-end">
<div className="space-y-2">
<Label htmlFor="provider-select" className="text-xs text-muted-foreground">Provider</Label>
<Select value={selectedProvider} onValueChange={setSelectedProvider}>
<SelectTrigger id="provider-select">
<SelectValue placeholder="Automatic" />
</SelectTrigger>
<SelectContent>
<SelectItem value="auto">Automatic (Default)</SelectItem>
{providers?.map((provider) => (
<SelectItem key={provider.provider_name} value={provider.provider_name}>
{provider.display_name || provider.provider_name}
</SelectItem>
))}
</SelectContent>
</Select>
</div>
<div className="space-y-2">
<Label htmlFor="test_email" className="text-xs text-muted-foreground">Recipient</Label>
<Input
id="test_email"
type="email"
value={testEmail}
onChange={(e) => setTestEmail(e.target.value)}
placeholder="recipient@example.com"
/>
</div>
<Button
onClick={handleSendTest}
disabled={testEmailMutation.isPending}
variant="outline"
className="mb-0.5"
>
{testEmailMutation.isPending ? (
<Loader2 className="h-4 w-4 animate-spin" />
) : (
<Send className="h-4 w-4" />
)}
<span className="ml-2">Send</span>
</Button>
</div>
</div>
</div>
</AppDialog>
);
};
|