import { renderSlot } from "../../lib/slots.mjs";
import { useEffect, useRef, useState } from "react";
import { twMerge } from "tailwind-merge";
import { ChevronRight } from "lucide-react";
import { jsx, jsxs } from "react/jsx-runtime";
import { Streamdown } from "streamdown";

//#region src/components/chat/CopilotChatReasoningMessage.tsx
/**
* Formats an elapsed duration (in seconds) to a human-readable string.
*/
function formatDuration(seconds) {
	if (seconds < 1) return "a few seconds";
	if (seconds < 60) return `${Math.round(seconds)} seconds`;
	const mins = Math.floor(seconds / 60);
	const secs = Math.round(seconds % 60);
	if (secs === 0) return `${mins} minute${mins > 1 ? "s" : ""}`;
	return `${mins}m ${secs}s`;
}
function CopilotChatReasoningMessage({ message, messages, isRunning, header, contentView, toggle, children, className, ...props }) {
	const isLatest = messages?.[messages.length - 1]?.id === message.id;
	const isStreaming = !!(isRunning && isLatest);
	const hasContent = !!(message.content && message.content.length > 0);
	const startTimeRef = useRef(null);
	const [elapsed, setElapsed] = useState(0);
	useEffect(() => {
		if (isStreaming && startTimeRef.current === null) startTimeRef.current = Date.now();
		if (!isStreaming && startTimeRef.current !== null) {
			setElapsed((Date.now() - startTimeRef.current) / 1e3);
			return;
		}
		if (!isStreaming) return;
		const timer = setInterval(() => {
			if (startTimeRef.current !== null) setElapsed((Date.now() - startTimeRef.current) / 1e3);
		}, 1e3);
		return () => clearInterval(timer);
	}, [isStreaming]);
	const [isOpen, setIsOpen] = useState(isStreaming);
	useEffect(() => {
		if (isStreaming) setIsOpen(true);
		else setIsOpen(false);
	}, [isStreaming]);
	const label = isStreaming ? "Thinking…" : `Thought for ${formatDuration(elapsed)}`;
	const boundHeader = renderSlot(header, CopilotChatReasoningMessage.Header, {
		isOpen,
		label,
		hasContent,
		isStreaming,
		onClick: hasContent ? () => setIsOpen((prev) => !prev) : void 0
	});
	const boundContent = renderSlot(contentView, CopilotChatReasoningMessage.Content, {
		isStreaming,
		hasContent,
		children: message.content
	});
	const boundToggle = renderSlot(toggle, CopilotChatReasoningMessage.Toggle, {
		isOpen,
		children: boundContent
	});
	if (children) return /* @__PURE__ */ jsx("div", {
		"data-copilotkit": true,
		style: { display: "contents" },
		children: children({
			header: boundHeader,
			contentView: boundContent,
			toggle: boundToggle,
			message,
			messages,
			isRunning
		})
	});
	return /* @__PURE__ */ jsxs("div", {
		className: twMerge("cpk:my-1", className),
		"data-message-id": message.id,
		...props,
		children: [boundHeader, boundToggle]
	});
}
(function(_CopilotChatReasoningMessage) {
	_CopilotChatReasoningMessage.Header = ({ isOpen, label = "Thoughts", hasContent, isStreaming, className, children: headerChildren, ...headerProps }) => {
		const isExpandable = !!hasContent;
		return /* @__PURE__ */ jsxs("button", {
			type: "button",
			className: twMerge("cpk:inline-flex cpk:items-center cpk:gap-1 cpk:py-1 cpk:text-sm cpk:text-muted-foreground cpk:transition-colors cpk:select-none", isExpandable ? "cpk:hover:text-foreground cpk:cursor-pointer" : "cpk:cursor-default", className),
			"aria-expanded": isExpandable ? isOpen : void 0,
			...headerProps,
			children: [
				/* @__PURE__ */ jsx("span", {
					className: "cpk:font-medium",
					children: label
				}),
				isStreaming && !hasContent && /* @__PURE__ */ jsx("span", {
					className: "cpk:inline-flex cpk:items-center cpk:ml-1",
					children: /* @__PURE__ */ jsx("span", { className: "cpk:w-1.5 cpk:h-1.5 cpk:rounded-full cpk:bg-muted-foreground cpk:animate-pulse" })
				}),
				headerChildren,
				isExpandable && /* @__PURE__ */ jsx(ChevronRight, { className: twMerge("cpk:size-3.5 cpk:shrink-0 cpk:transition-transform cpk:duration-200", isOpen && "cpk:rotate-90") })
			]
		});
	};
	_CopilotChatReasoningMessage.Content = ({ isStreaming, hasContent, className, children: contentChildren, ...contentProps }) => {
		if (!hasContent && !isStreaming) return null;
		return /* @__PURE__ */ jsx("div", {
			className: twMerge("cpk:pb-2 cpk:pt-1", className),
			...contentProps,
			children: /* @__PURE__ */ jsxs("div", {
				className: "cpk:text-sm cpk:text-muted-foreground",
				children: [/* @__PURE__ */ jsx(Streamdown, { children: typeof contentChildren === "string" ? contentChildren : "" }), isStreaming && hasContent && /* @__PURE__ */ jsx("span", {
					className: "cpk:inline-flex cpk:items-center cpk:ml-1 cpk:align-middle",
					children: /* @__PURE__ */ jsx("span", { className: "cpk:w-2 cpk:h-2 cpk:rounded-full cpk:bg-muted-foreground cpk:animate-pulse-cursor" })
				})]
			})
		});
	};
	_CopilotChatReasoningMessage.Toggle = ({ isOpen, className, children: toggleChildren, ...toggleProps }) => {
		return /* @__PURE__ */ jsx("div", {
			className: twMerge("cpk:grid cpk:transition-[grid-template-rows] cpk:duration-200 cpk:ease-in-out", className),
			style: { gridTemplateRows: isOpen ? "1fr" : "0fr" },
			...toggleProps,
			children: /* @__PURE__ */ jsx("div", {
				className: "cpk:overflow-hidden",
				children: toggleChildren
			})
		});
	};
})(CopilotChatReasoningMessage || (CopilotChatReasoningMessage = {}));
CopilotChatReasoningMessage.Header.displayName = "CopilotChatReasoningMessage.Header";
CopilotChatReasoningMessage.Content.displayName = "CopilotChatReasoningMessage.Content";
CopilotChatReasoningMessage.Toggle.displayName = "CopilotChatReasoningMessage.Toggle";
var CopilotChatReasoningMessage_default = CopilotChatReasoningMessage;

//#endregion
export { CopilotChatReasoningMessage_default as default };
//# sourceMappingURL=CopilotChatReasoningMessage.mjs.map