Files
LexiChain/features/contracts/components/modals/contract-chat-modal.tsx
2026-04-12 19:24:24 +01:00

310 lines
12 KiB
TypeScript

"use client";
import { useState } from "react";
import {
Dialog,
DialogContent,
DialogHeader,
DialogTitle,
} from "@/components/ui/dialog";
import {
MessageSquare,
Briefcase,
Scale,
Bot,
User,
Loader2,
Send,
Network,
} from "lucide-react";
import { Button } from "@/components/ui/button";
import { Textarea } from "@/components/ui/textarea";
import { askContractQuestionAction } from "@/features/contracts/api/contract.action";
interface Contract {
id: string;
fileName: string;
}
interface ChatMessage {
role: "user" | "assistant";
content: string;
}
interface RagDiagnosticEntry {
chunkIndex: number;
score: number;
preview: string;
}
interface ContractChatModalProps {
isOpen: boolean;
onOpenChange: (open: boolean) => void;
contract: Contract | null;
renderRichParagraphs: (text: string, prefix: string) => React.ReactNode[];
}
export function ContractChatModal({
isOpen,
onOpenChange,
contract,
renderRichParagraphs,
}: ContractChatModalProps) {
const [question, setQuestion] = useState("");
const [isAsking, setIsAsking] = useState(false);
const [ragDiagnostics, setRagDiagnostics] = useState<RagDiagnosticEntry[]>(
[],
);
const [messages, setMessages] = useState<ChatMessage[]>([
{
role: "assistant",
content:
"Ask me anything about this contract. I will answer based on the file analysis.",
},
]);
const quickQuestions = [
"What are the main obligations and deadlines?",
"What are the non-compliance risks under general EU/US principles?",
"What are the most important exclusions and liabilities?",
];
const handleAskQuestion = async () => {
if (!contract) return;
const trimmedQuestion = question.trim();
if (!trimmedQuestion) return;
setMessages((prev) => [
...prev,
{ role: "user", content: trimmedQuestion },
]);
setQuestion("");
setIsAsking(true);
try {
const result = await askContractQuestionAction(
contract.id,
trimmedQuestion,
);
if (result.success && result.answer) {
const diagnostics = Array.isArray(
(result as { ragDiagnostics?: RagDiagnosticEntry[] }).ragDiagnostics,
)
? ((result as { ragDiagnostics?: RagDiagnosticEntry[] })
.ragDiagnostics ?? [])
: [];
setRagDiagnostics(diagnostics);
setMessages((prev) => [
...prev,
{ role: "assistant", content: result.answer as string },
]);
} else {
const errorMessage = result.error || "Failed to get AI response";
setMessages((prev) => [
...prev,
{ role: "assistant", content: `Error: ${errorMessage}` },
]);
}
} catch (error) {
const fallbackMessage =
error instanceof Error ? error.message : "Unknown error occurred";
setMessages((prev) => [
...prev,
{ role: "assistant", content: `Error: ${fallbackMessage}` },
]);
} finally {
setIsAsking(false);
}
};
return (
<Dialog open={isOpen} onOpenChange={onOpenChange}>
<DialogContent className="max-h-[90vh] max-w-2xl overflow-y-auto border-border/60 bg-[radial-gradient(circle_at_top_right,hsl(var(--primary)/0.18),transparent_40%),radial-gradient(circle_at_bottom_left,hsl(var(--secondary)/0.12),transparent_45%)]">
<DialogHeader>
<DialogTitle className="flex items-center gap-2">
<MessageSquare className="w-5 h-5" />
Ask About This File
</DialogTitle>
</DialogHeader>
{contract && (
<div className="space-y-4">
<div className="rounded-2xl border border-white/20 dark:border-white/10 bg-background/40 p-4 shadow-xl backdrop-blur-xl ring-1 ring-black/5 dark:ring-white/5 transition-all duration-500 hover:shadow-primary/5 hover:border-primary/20">
<div className="flex items-start justify-between gap-4">
<div className="min-w-0">
<p className="text-xs uppercase tracking-[0.14em] text-muted-foreground">
Contract Intelligence Assistant
</p>
<p className="text-sm font-medium truncate mt-1">
{contract.fileName}
</p>
</div>
<div className="flex items-center gap-2 text-xs">
<span className="inline-flex items-center gap-1 rounded-full border border-border/70 bg-muted/30 px-2 py-1">
<Briefcase className="w-3.5 h-3.5" />
Business
</span>
<span className="inline-flex items-center gap-1 rounded-full border border-border/70 bg-muted/30 px-2 py-1">
<Scale className="w-3.5 h-3.5" />
Legal Context
</span>
</div>
</div>
</div>
<div className="space-y-2">
<p className="text-xs text-muted-foreground">Quick prompts</p>
<div className="flex flex-wrap gap-2">
{quickQuestions.map((quickQuestion) => (
<Button
key={quickQuestion}
type="button"
variant="outline"
size="sm"
disabled={isAsking}
onClick={() => setQuestion(quickQuestion)}
className="border-primary/25 bg-background/80 text-xs hover:border-primary/50 hover:bg-primary/10"
>
{quickQuestion}
</Button>
))}
</div>
</div>
<div className="rounded-2xl border border-cyan-500/20 bg-cyan-500/5 p-3">
<div className="mb-2 flex items-center gap-2">
<Network className="h-4 w-4 text-cyan-600 dark:text-cyan-300" />
<p className="text-xs font-semibold uppercase tracking-wide text-cyan-700 dark:text-cyan-300">
RAG Diagnostics
</p>
</div>
{ragDiagnostics.length === 0 ? (
<p className="text-xs text-muted-foreground">
Ask a question to inspect top retrieved chunks and relevance
scores.
</p>
) : (
<div className="space-y-2">
{ragDiagnostics.map((item) => (
<div
key={`${item.chunkIndex}-${item.score}`}
className="rounded-xl border border-border/50 bg-background/70 p-2"
>
<div className="mb-1 flex items-center justify-between text-[11px]">
<span className="font-medium text-foreground">
Chunk {item.chunkIndex}
</span>
<span className="rounded-full border border-cyan-500/30 bg-cyan-500/10 px-2 py-0.5 text-cyan-700 dark:text-cyan-300">
score {item.score.toFixed(4)}
</span>
</div>
<p className="text-[11px] leading-relaxed text-muted-foreground">
{item.preview}
</p>
</div>
))}
</div>
)}
</div>
<div className="h-80 space-y-3 overflow-y-auto rounded-2xl border border-white/10 bg-black/5 dark:bg-white/5 p-4 shadow-inner backdrop-blur-md">
{messages.map((message, index) => (
<div
key={index}
className={`flex ${message.role === "user" ? "justify-end" : "justify-start"}`}
>
<div className="flex max-w-[88%] items-start gap-2">
{message.role === "assistant" && (
<span className="mt-1 inline-flex h-7 w-7 items-center justify-center rounded-full border border-border/60 bg-muted/40 text-muted-foreground">
<Bot className="h-4 w-4" />
</span>
)}
<div
className={`rounded-2xl px-3 py-2 text-sm whitespace-pre-wrap break-words shadow-sm transition-all duration-300 hover:shadow-md ${
message.role === "user"
? "bg-gradient-to-r from-primary to-accent text-primary-foreground shadow-primary/25"
: "border border-white/20 dark:border-white/10 bg-white/50 dark:bg-black/50 backdrop-blur-md shadow-[0_4px_30px_rgba(0,0,0,0.05)]"
}`}
>
{message.role === "assistant"
? renderRichParagraphs(
message.content,
`chat-assistant-${index}`,
)
: message.content}
</div>
{message.role === "user" && (
<span className="mt-1 inline-flex h-7 w-7 items-center justify-center rounded-full border border-primary/25 bg-primary/10 text-primary">
<User className="h-4 w-4" />
</span>
)}
</div>
</div>
))}
{isAsking && (
<div className="flex justify-start">
<div className="flex items-center gap-2 rounded-2xl border border-border/70 bg-background px-3 py-2 text-sm shadow-sm">
<span className="inline-flex h-6 w-6 items-center justify-center rounded-full border border-border/60 bg-muted/30 text-muted-foreground">
<Bot className="h-3.5 w-3.5" />
</span>
<Loader2 className="w-4 h-4 animate-spin" />
Preparing a professional legal-business answer...
</div>
</div>
)}
</div>
<div className="space-y-2">
<Textarea
value={question}
onChange={(event) => setQuestion(event.target.value)}
placeholder="Ask about obligations, liabilities, legal exposure, compliance risks, or business impact..."
rows={3}
disabled={isAsking}
className="rounded-2xl border-white/20 dark:border-white/10 bg-background/50 backdrop-blur-md focus:bg-background/80 transition-all duration-300 shadow-inner"
onKeyDown={(event) => {
if (
event.key === "Enter" &&
!event.shiftKey &&
!isAsking &&
question.trim()
) {
event.preventDefault();
void handleAskQuestion();
}
}}
/>
<div className="flex justify-end">
<Button
onClick={handleAskQuestion}
disabled={isAsking || !question.trim()}
className="gap-2 bg-gradient-to-r from-primary to-accent text-white shadow-md hover:from-primary/90 hover:to-accent/90"
>
{isAsking ? (
<>
<Loader2 className="w-4 h-4 animate-spin" />
Sending...
</>
) : (
<>
<Send className="w-4 h-4" />
Send
</>
)}
</Button>
</div>
</div>
<p className="text-[11px] text-muted-foreground">
Tip: press Enter to send, Shift+Enter for a new line.
</p>
</div>
)}
</DialogContent>
</Dialog>
);
}