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import { useNavigate, useSearch } from "@tanstack/react-router";
import { notify } from "../../../../lib/notify";
import { useQueryClient } from "@tanstack/react-query";
import {
useWhatsAppTemplates,
useWhatsAppCampaign,
useCreateCampaign,
useLaunchCampaign,
useCampaignRecipients,
useAddRecipientsManual,
useAddRecipientsCSV,
} from "../../../../hooks/queries/useWhatsAppQueries";
import { getErrorMessage } from "../../../../lib/api";
import { DEFAULT_COUNTRY_CODE } from "../../../../components/whatsapp/country-codes";
import {
parseTemplateComponents,
extractParameterSlots,
isApprovedTemplate,
} from "../../../../lib/whatsapp/template";
import { queryKeys } from "../../../../lib/query-keys";
import { CampaignWizard } from "./CampaignWizardSteps.subcomponent";
type Recipient = { phone: string; name?: string };
export function WhatsAppCampaignCreatePage() {
const navigate = useNavigate();
const queryClient = useQueryClient();
const search = useSearch({ strict: false }) as { viewId?: number };
const viewId = search.viewId ?? null;
const [step, setStep] = useState(1);
const [campaignName, setCampaignName] = useState("");
const [selectedTemplateId, setSelectedTemplateId] = useState<number | null>(
null,
);
const [campaignId, setCampaignId] = useState<number | null>(viewId);
const [countryCode, setCountryCode] = useState(DEFAULT_COUNTRY_CODE);
const [manualInput, setManualInput] = useState("");
const [templateParamValues, setTemplateParamValues] = useState<
Record<string, string>
>({});
const [initialized, setInitialized] = useState(!viewId);
const { data: templates = [] } = useWhatsAppTemplates();
// The detail envelope, not a bare campaign row: `.campaign` is the row the
// wizard edits. A non-draft is not editable at all — see the redirect below.
const { data: campaignDetail } = useWhatsAppCampaign(viewId);
const existingCampaign = campaignDetail?.campaign;
const createMutation = useCreateCampaign();
const launchMutation = useLaunchCampaign();
const addManualMutation = useAddRecipientsManual();
const csvUploadMutation = useAddRecipientsCSV();
const { data: recipients = [] } = useCampaignRecipients(campaignId);
const approvedTemplates = templates.filter(isApprovedTemplate);
const selectedTemplate = approvedTemplates.find(
(t) => t.id === selectedTemplateId,
);
// Detect template variables for campaign template params
const templateComponents = selectedTemplate
? parseTemplateComponents(selectedTemplate.components)
: [];
const templateSlots = extractParameterSlots(templateComponents);
const hasTemplateVariables = templateSlots.length > 0;
/**
* A launched campaign is not editable, so `?viewId=` on a non-draft is not
* a mode of this wizard — it is the old URL for a read view that now has
* its own route. Redirect, replacing history so Back does not bounce.
*
* Kept rather than deleted because the old link shape is in bookmarks and
* in anything an admin pasted into Slack.
*/
const isLaunched =
viewId !== null && existingCampaign && existingCampaign.status !== "draft";
const isDraftEdit =
viewId !== null &&
existingCampaign &&
existingCampaign.status === "draft";
useEffect(() => {
if (!isLaunched || !existingCampaign) return;
navigate({
to: "/admin/whatsapp/campaigns/$campaignId",
params: { campaignId: String(existingCampaign.id) },
replace: true,
});
}, [isLaunched, existingCampaign, navigate]);
// Initialize state from existing campaign
useEffect(() => {
if (!existingCampaign || initialized) return;
setCampaignName(existingCampaign.name);
setSelectedTemplateId(existingCampaign.templateId);
setCampaignId(existingCampaign.id);
// Load saved template params
if (existingCampaign.templateParams) {
try {
setTemplateParamValues(
JSON.parse(existingCampaign.templateParams),
);
} catch {
// ignore parse errors
}
}
if (existingCampaign.status === "draft") {
// Draft with recipients → step 2, otherwise step 1
setStep(existingCampaign.statsTotal > 0 ? 2 : 1);
}
setInitialized(true);
}, [existingCampaign, initialized]);
const handleCreateCampaign = async () => {
Iif (!campaignName || !selectedTemplateId) return;
const payload: {
name: string;
templateId: number;
templateParams?: string;
} = { name: campaignName, templateId: selectedTemplateId };
if (hasTemplateVariables && Object.keys(templateParamValues).length > 0) {
payload.templateParams = JSON.stringify(templateParamValues);
}
createMutation.mutate(payload, {
onSuccess: (res) => {
Eif (res.data?.campaign) {
setCampaignId(res.data.campaign.id);
setStep(2);
}
},
onError: (err) => notify.error(getErrorMessage(err)),
});
};
const handleAddManualRecipients = () => {
Iif (!campaignId || !manualInput.trim()) return;
const newRecipients: Recipient[] = manualInput
.split("\n")
.map((line) => line.trim())
.filter(Boolean)
.map((line) => {
const [rawPhone, name] = line.split(",").map((s) => s.trim());
// Strip all non-digits
let digits = rawPhone.replace(/\D/g, "");
// Only prepend country code if it's exactly 10 digits (Indian mobile)
if (digits.length === 10) {
digits = `${countryCode}${digits}`;
}
return { phone: digits, name: name || undefined };
})
.filter((r) => r.phone && r.phone.length >= 10);
addManualMutation.mutate(
{ campaignId, recipients: newRecipients },
{
onSuccess: () => {
setManualInput("");
notify.success(`${newRecipients.length} recipients added`);
},
onError: (err) => notify.error(getErrorMessage(err)),
},
);
};
const handleCsvUpload = (e: React.ChangeEvent<HTMLInputElement>) => {
const file = e.target.files?.[0];
if (!file || !campaignId) return;
csvUploadMutation.mutate(
{ campaignId, file },
{
onSuccess: () => {
notify.success("CSV recipients uploaded");
e.target.value = "";
},
onError: (err) => {
notify.error(getErrorMessage(err));
e.target.value = "";
},
},
);
};
const handleLaunch = async () => {
Iif (!campaignId) return;
launchMutation.mutate(campaignId, {
onSuccess: async () => {
notify.success("Campaign launched!");
await queryClient.invalidateQueries({
queryKey: queryKeys.admin.whatsapp.campaigns(),
});
navigate({ to: "/admin/whatsapp/campaigns" });
},
onError: (err) => notify.error(getErrorMessage(err)),
});
};
const handleTemplateChange = (id: number | null) => {
setSelectedTemplateId(id);
setTemplateParamValues({});
};
// ── Create / Draft Edit wizard ────────────────────────────────────────
return (
<CampaignWizard
step={step as 1 | 2 | 3}
// The server's answer to "can this be stopped once launched". It
// cannot, and step 3 says so before the button is pressed rather
// than after. Defaults to the truth while the draft is still being
// created and there is no detail response yet.
stoppable={campaignDetail?.stoppable ?? false}
isDraftEdit={!!isDraftEdit}
campaignName={campaignName}
selectedTemplateId={selectedTemplateId}
approvedTemplates={approvedTemplates}
selectedTemplate={selectedTemplate}
hasTemplateVariables={hasTemplateVariables}
templateParamValues={templateParamValues}
templateSlotsCount={templateSlots.length}
countryCode={countryCode}
manualInput={manualInput}
recipients={recipients}
createPending={createMutation.isPending}
csvUploadPending={csvUploadMutation.isPending}
launchPending={launchMutation.isPending}
onCampaignNameChange={setCampaignName}
onTemplateChange={handleTemplateChange}
onParamChange={(key, value) => setTemplateParamValues((prev) => ({ ...prev, [key]: value }))}
onCountryCodeChange={setCountryCode}
onManualInputChange={setManualInput}
onAddManual={handleAddManualRecipients}
onCsvUpload={handleCsvUpload}
onNext={isDraftEdit ? () => setStep((s) => (s === 1 ? 2 : 3)) : step === 1 ? handleCreateCampaign : () => setStep(3)}
onBack={() => setStep((s) => (s === 2 ? 1 : 2))}
onLaunch={handleLaunch}
onNavigateBack={() => navigate({ to: "/admin/whatsapp/campaigns" })}
/>
);
}
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