All files / src/components/whatsapp MessageThread.tsx

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import { useMemo } from "react";
import { Check, CheckCheck, AlertCircle } from "lucide-react";
import { cn } from "../../lib/utils";
import type { WaMessage, WaTemplate } from "../../lib/api/whatsapp";
import {
	parseTemplateComponents,
	getTemplateBodyText,
	renderPreviewText,
} from "./template-utils";
 
type MessageThreadProps = {
	messages: WaMessage[];
	templates?: WaTemplate[];
	isLoading: boolean;
};
 
function formatTime(dateStr: string): string {
	return new Date(dateStr).toLocaleTimeString("en-IN", {
		hour: "2-digit",
		minute: "2-digit",
	});
}
 
function formatDate(dateStr: string): string {
	const date = new Date(dateStr);
	const today = new Date();
	const yesterday = new Date(today);
	yesterday.setDate(yesterday.getDate() - 1);
 
	if (date.toDateString() === today.toDateString()) return "Today";
	if (date.toDateString() === yesterday.toDateString()) return "Yesterday";
	return date.toLocaleDateString("en-IN", {
		day: "numeric",
		month: "short",
		year: "numeric",
	});
}
 
function StatusIcon({ status }: { status: string }) {
	switch (status) {
		case "sent":
			return <Check className="h-3 w-3 text-foreground-subtle" />;
		case "delivered":
			return <CheckCheck className="h-3 w-3 text-foreground-subtle" />;
		case "read":
			return <CheckCheck className="h-3 w-3 text-info" />;
		case "failed":
			return <AlertCircle className="h-3 w-3 text-error" />;
		default:
			return null;
	}
}
 
type SentComponent = {
	type?: string;
	parameters?: Array<{ text?: string; type?: string }>;
};
 
function parseContent(
	content: string | null,
	type: string,
	templateMap?: Map<string, WaTemplate>,
	templateName?: string | null,
): string {
	Iif (!content) return "";
	try {
		const parsed = JSON.parse(content);
		if (typeof parsed === "string") return parsed;
 
		// Text messages
		if (parsed.body) return parsed.body;
		if (parsed.text?.body) return parsed.text.body;
 
		// Template messages — resolve body text with parameter values
		if (type === "template") {
			return resolveTemplateMessage(parsed, templateMap, templateName);
		}
 
		// Image / video / document
		if (type === "image") {
			return parsed.caption ? `[Image] ${parsed.caption}` : "[Image]";
		}
		if (type === "video") {
			return parsed.caption ? `[Video] ${parsed.caption}` : "[Video]";
		}
		if (type === "document") {
			const name = parsed.filename ?? "Document";
			return parsed.caption ? `[${name}] ${parsed.caption}` : `[${name}]`;
		}
		if (type === "audio") {
			return "[Voice message]";
		}
 
		// Location
		if (type === "location") {
			const parts = [parsed.name, parsed.address].filter(Boolean);
			return parts.length > 0
				? `[Location] ${parts.join(", ")}`
				: `[Location] ${parsed.latitude}, ${parsed.longitude}`;
		}
 
		// Interactive (button/list replies)
		Eif (type === "interactive") {
			const title =
				parsed.buttonReply?.title ?? parsed.listReply?.title ?? "";
			return title ? `[Reply] ${title}` : "[Interactive message]";
		}
 
		return parsed.body ?? content;
	} catch {
		return content;
	}
}
 
/**
 * Resolve a template message into the text the customer would see.
 * Looks up the template definition to get the body text with {{N}} placeholders,
 * then substitutes the parameter values that were sent with the message.
 */
function resolveTemplateMessage(
	parsed: Record<string, unknown>,
	templateMap?: Map<string, WaTemplate>,
	templateName?: string | null,
): string {
	// Extract sent parameters from the message content
	// Format 1: { templateName, language, components: [...] }
	const sentComponents = (parsed.components ?? []) as SentComponent[];
	// Format 2: full payload { template: { name, components: [...] } }
	const nestedTemplate = parsed.template as
		| { name?: string; components?: SentComponent[] }
		| undefined;
	const msgComponents = nestedTemplate?.components ?? sentComponents;
 
	const name =
		templateName ??
		(parsed.templateName as string) ??
		nestedTemplate?.name ??
		"";
 
	// Build parameter values map from sent components
	const values: Record<string, string> = {};
	for (const comp of msgComponents) {
		const compType = (comp.type ?? "").toUpperCase();
		Iif (compType !== "BODY" && compType !== "HEADER") continue;
		for (const [idx, param] of (comp.parameters ?? []).entries()) {
			Eif (param.text) {
				values[`${compType}_${idx + 1}`] = param.text;
			}
		}
	}
 
	// Look up the template definition to get the body text with placeholders
	const template = name ? templateMap?.get(name) : undefined;
	if (template?.components) {
		const defComponents = parseTemplateComponents(template.components);
		const bodyText = getTemplateBodyText(defComponents);
		Eif (bodyText) {
			return renderPreviewText(bodyText, "BODY", values);
		}
	}
 
	// Fallback: show parameter values if template definition unavailable
	const paramTexts = Object.values(values);
	if (paramTexts.length > 0) {
		return paramTexts.join(", ");
	}
 
	return name ? `[Template: ${name}]` : "[Template message]";
}
 
export function MessageThread({
	messages,
	templates,
	isLoading,
}: MessageThreadProps) {
	const templateMap = useMemo(() => {
		const map = new Map<string, WaTemplate>();
		for (const t of templates ?? []) {
			map.set(t.name, t);
		}
		return map;
	}, [templates]);
 
	if (isLoading) {
		return (
			<div className="flex-1 flex items-center justify-center">
				<div className="animate-spin rounded-full h-8 w-8 border-b-2 border-whatsapp-green" />
			</div>
		);
	}
 
	if (messages.length === 0) {
		return (
			<div className="flex-1 flex items-center justify-center text-foreground-muted">
				<p className="text-sm">No messages yet</p>
			</div>
		);
	}
 
	// Group messages by date
	const groupedMessages: { date: string; messages: WaMessage[] }[] = [];
	let currentDate = "";
	for (const msg of messages) {
		const date = formatDate(msg.dateCreated);
		if (date !== currentDate) {
			currentDate = date;
			groupedMessages.push({ date, messages: [msg] });
		} else E{
			groupedMessages[groupedMessages.length - 1].messages.push(msg);
		}
	}
 
	return (
		<div className="flex-1 overflow-y-auto p-4 space-y-4">
			{groupedMessages.map((group) => (
				<div key={group.date}>
					{/* Date Separator */}
					<div className="flex items-center justify-center my-4">
						<span className="bg-background-muted text-foreground-muted text-xs px-3 py-1 rounded-full">
							{group.date}
						</span>
					</div>
 
					{/* Messages */}
					<div className="space-y-2">
						{group.messages.map((msg) => (
							<div
								key={msg.id}
								className={cn(
									"flex",
									msg.direction === "outbound"
										? "justify-end"
										: "justify-start",
								)}
							>
								<div
									className={cn(
										"max-w-[75%] rounded-lg px-3 py-2 shadow-sm",
										msg.direction === "outbound"
											? "bg-whatsapp-bubble-sent dark:bg-whatsapp-green/20 text-foreground-default"
											: "bg-background-default border border-border-default text-foreground-default",
									)}
								>
									{/* Template badge */}
									{msg.templateName && (
										<p className="text-xs font-medium text-whatsapp-green dark:text-whatsapp-green mb-1">
											Template: {msg.templateName}
										</p>
									)}
 
									{/* Message content */}
									<p className="text-sm whitespace-pre-wrap break-words">
										{parseContent(msg.content, msg.type, templateMap, msg.templateName)}
									</p>
 
									{/* Time and status */}
									<div className="flex items-center justify-end gap-1 mt-1">
										<span className="text-xs text-foreground-subtle">
											{formatTime(msg.dateCreated)}
										</span>
										{msg.direction === "outbound" && (
											<StatusIcon status={msg.status} />
										)}
									</div>
								</div>
							</div>
						))}
					</div>
				</div>
			))}
		</div>
	);
}