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import { Send, CheckCircle, AlertTriangle, Loader2 } from "lucide-react";
import { notify } from "../../../lib/notify";
import {
Card,
CardContent,
CardHeader,
CardTitle,
} from "../../../components/ui/card";
import {
useCheckPhone,
useSendMessage,
useWhatsAppTemplates,
} from "../../../hooks/queries/useWhatsAppQueries";
import { getErrorMessage } from "../../../lib/api";
import { TemplateParameterFields } from "../../../components/whatsapp/TemplateParameterFields";
import {
parseTemplateComponents,
extractParameterSlots,
buildSendComponents,
isApprovedTemplate,
} from "../../../components/whatsapp/template-utils";
import { WhatsAppPageLayout } from "../../../components/whatsapp/WhatsAppPageLayout";
import { CountryCodeSelect } from "../../../components/whatsapp/CountryCodeSelect";
import { DEFAULT_COUNTRY_CODE } from "../../../components/whatsapp/country-codes";
export function WhatsAppSendPage() {
const [phone, setPhone] = useState("");
const [countryCode, setCountryCode] = useState(DEFAULT_COUNTRY_CODE);
const [messageType, setMessageType] = useState<"text" | "template">("text");
const [message, setMessage] = useState("");
const [selectedTemplate, setSelectedTemplate] = useState("");
const [paramValues, setParamValues] = useState<Record<string, string>>({});
// Debounce the phone number for the check query
const [debouncedPhone, setDebouncedPhone] = useState<string | null>(null);
const normalizedPhone = phone.replace(/\D/g, "");
const isValidPhone =
countryCode === "91"
? /^[6-9]\d{9}$/.test(normalizedPhone)
: normalizedPhone.length >= 4 && normalizedPhone.length <= 15;
useEffect(() => {
if (!isValidPhone) {
setDebouncedPhone(null);
return;
}
const fullPhone = `${countryCode}${normalizedPhone}`;
const timer = setTimeout(() => setDebouncedPhone(fullPhone), 500);
return () => clearTimeout(timer);
}, [countryCode, normalizedPhone, isValidPhone]);
const { data: phoneCheck, isFetching: isCheckingPhone } =
useCheckPhone(debouncedPhone);
// Auto-switch to template when the 24hr window is closed
useEffect(() => {
if (phoneCheck && !phoneCheck.canSendText && messageType === "text") {
setMessageType("template");
}
}, [phoneCheck, messageType]);
const { data: templates = [] } = useWhatsAppTemplates();
const sendMutation = useSendMessage();
const approvedTemplates = templates.filter(isApprovedTemplate);
const currentTemplate = approvedTemplates.find(
(t) => t.name === selectedTemplate,
);
// Detect template variables
const templateComponents = currentTemplate
? parseTemplateComponents(currentTemplate.components)
: [];
const slots = extractParameterSlots(templateComponents);
const hasVariables = slots.length > 0;
const allParamsFilled =
!hasVariables ||
slots.every((s) => paramValues[`${s.componentType}_${s.index}`]?.trim());
const handleSend = () => {
const payload: {
phone: string;
message?: string;
templateName?: string;
language?: string;
components?: unknown[];
} = {
phone: `${countryCode}${normalizedPhone}`,
};
if (messageType === "text") {
Iif (!message.trim()) return;
payload.message = message.trim();
} else {
Iif (!selectedTemplate || !currentTemplate) return;
Iif (hasVariables && !allParamsFilled) return;
payload.templateName = currentTemplate.name;
payload.language = currentTemplate.language;
if (hasVariables) {
payload.components = buildSendComponents(
templateComponents,
paramValues,
);
}
}
sendMutation.mutate(payload, {
onSuccess: () => {
notify.success("Message sent successfully!");
setMessage("");
setSelectedTemplate("");
setParamValues({});
},
onError: (err) => notify.error(getErrorMessage(err)),
});
};
const handleTemplateChange = (name: string) => {
setSelectedTemplate(name);
setParamValues({});
};
const canSend =
isValidPhone &&
!sendMutation.isPending &&
(messageType === "text"
? !!message.trim()
: !!selectedTemplate && allParamsFilled);
return (
<WhatsAppPageLayout>
<div className="space-y-6 max-w-xl">
{/* Header */}
<div>
<h1 className="text-2xl font-bold text-foreground-default">
Quick Send
</h1>
<p className="mt-1 text-foreground-muted">
Send a WhatsApp message to any phone number.
</p>
</div>
<Card>
<CardHeader>
<CardTitle className="flex items-center gap-2">
<Send className="h-5 w-5 text-green-600" />
Send Message
</CardTitle>
</CardHeader>
<CardContent className="space-y-4">
{/* Phone Number */}
<div>
<label
htmlFor="send-phone"
className="block text-sm font-medium text-foreground-default mb-1"
>
Phone Number
</label>
<div className="flex">
<CountryCodeSelect
value={countryCode}
onChange={(code) => {
setCountryCode(code);
setSelectedTemplate("");
setParamValues({});
}}
/>
<input
id="send-phone"
type="tel"
value={phone}
onChange={(e) => setPhone(e.target.value)}
placeholder={countryCode === "91" ? "9876543210" : "Phone number"}
maxLength={countryCode === "91" ? 10 : 15}
className="flex-1 rounded-r-md border border-border-default px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-green-500"
/>
</div>
{phone && !isValidPhone && (
<p className="mt-1 text-xs text-red-500">
{countryCode === "91"
? "Enter a valid 10-digit Indian mobile number"
: "Enter a valid phone number (at least 4 digits)"}
</p>
)}
{/* Phone check status */}
{isValidPhone && isCheckingPhone && (
<div className="mt-2 flex items-center gap-2 text-xs text-foreground-muted">
<Loader2 className="h-3.5 w-3.5 animate-spin" />
Checking number...
</div>
)}
{isValidPhone && !isCheckingPhone && phoneCheck && (
<div
className={`mt-2 flex items-start gap-2 rounded-md px-3 py-2 text-xs ${
phoneCheck.canSendText
? "bg-green-50 text-green-700"
: "bg-amber-50 text-amber-700"
}`}
>
{phoneCheck.canSendText ? (
<CheckCircle className="h-3.5 w-3.5 mt-0.5 shrink-0" />
) : (
<AlertTriangle className="h-3.5 w-3.5 mt-0.5 shrink-0" />
)}
<div>
{phoneCheck.canSendText ? (
<>
<span className="font-medium">24hr window open</span>
{" — you can send text or template messages."}
{phoneCheck.contactName && (
<span className="block mt-0.5 text-green-600">
Contact: {phoneCheck.contactName}
</span>
)}
</>
) : phoneCheck.exists ? (
<>
<span className="font-medium">24hr window expired</span>
{" — only template messages can be sent."}
{phoneCheck.contactName && (
<span className="block mt-0.5 text-amber-600">
Contact: {phoneCheck.contactName}
</span>
)}
</>
) : (
<>
<span className="font-medium">New number</span>
{" — no prior conversation. Only template messages can be sent."}
</>
)}
</div>
</div>
)}
</div>
{/* Message Type Toggle */}
<fieldset>
<legend className="block text-sm font-medium text-foreground-default mb-2">
Message Type
</legend>
<div className="flex gap-2">
<button
type="button"
aria-pressed={messageType === "text"}
onClick={() => setMessageType("text")}
className={`flex-1 px-3 py-2 text-sm rounded-md border transition-colors ${
messageType === "text"
? "border-green-600 bg-green-50 text-green-700 font-medium"
: "border-border-default text-foreground-muted hover:bg-background-muted"
}`}
>
Text Message
</button>
<button
type="button"
aria-pressed={messageType === "template"}
onClick={() => setMessageType("template")}
className={`flex-1 px-3 py-2 text-sm rounded-md border transition-colors ${
messageType === "template"
? "border-green-600 bg-green-50 text-green-700 font-medium"
: "border-border-default text-foreground-muted hover:bg-background-muted"
}`}
>
Template
</button>
</div>
{messageType === "text" && (
<p className="mt-2 text-xs text-foreground-subtle">
Text messages only work if the recipient has messaged you within
the last 24 hours.
</p>
)}
</fieldset>
{/* Message Input */}
{messageType === "text" ? (
<div>
<label
htmlFor="send-message"
className="block text-sm font-medium text-foreground-default mb-1"
>
Message
</label>
<textarea
id="send-message"
value={message}
onChange={(e) => setMessage(e.target.value)}
placeholder="Type your message..."
rows={4}
className="w-full rounded-md border border-border-default px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-green-500 resize-none"
/>
</div>
) : (
<div className="space-y-4">
<div>
<label
htmlFor="send-template"
className="block text-sm font-medium text-foreground-default mb-1"
>
Template
</label>
<select
id="send-template"
value={selectedTemplate}
onChange={(e) => handleTemplateChange(e.target.value)}
className="w-full rounded-md border border-border-default px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-green-500"
>
<option value="">Select an approved template...</option>
{approvedTemplates.map((t) => (
<option key={t.id} value={t.name}>
{t.name} ({t.language})
</option>
))}
</select>
</div>
{/* Template parameter fields + preview */}
{currentTemplate && (
<TemplateParameterFields
template={currentTemplate}
paramValues={paramValues}
onParamChange={(key, value) =>
setParamValues((prev) => ({ ...prev, [key]: value }))
}
/>
)}
</div>
)}
{/* Send Button */}
<div className="pt-2">
<button
type="button"
onClick={handleSend}
disabled={!canSend}
className="w-full inline-flex items-center justify-center gap-2 rounded-md bg-green-600 px-4 py-2.5 text-sm font-medium text-white hover:bg-green-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
>
<Send className="h-4 w-4" />
{sendMutation.isPending ? "Sending..." : "Send Message"}
</button>
</div>
</CardContent>
</Card>
</div>
</WhatsAppPageLayout>
);
}
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