import { Database, FileSliders, Search, Shield } from 'lucide-react';

import { Badge } from '@/components/ui/badge';
import {
    Card,
    CardContent,
    CardDescription,
    CardHeader,
    CardTitle,
} from '@/components/ui/card';
import type { RagConfig } from '@/types/admin';

function valueOrDash(value: unknown): string {
    if (value === null || value === undefined || value === '') {
        return '-';
    }

    if (typeof value === 'boolean') {
        return value ? 'Ya' : 'Tidak';
    }

    return String(value);
}

function ConfigRows({
    rows,
}: {
    rows: Array<[label: string, value: unknown]>;
}) {
    return (
        <dl className="grid gap-3 text-sm">
            {rows.map(([label, value]) => (
                <div
                    className="flex items-start justify-between gap-4 rounded-lg border border-(--lecturer-border) px-3 py-2"
                    key={label}
                >
                    <dt className="text-muted-foreground">{label}</dt>
                    <dd className="max-w-[60%] text-right font-medium break-words">
                        {valueOrDash(value)}
                    </dd>
                </div>
            ))}
        </dl>
    );
}

export function AdminRagSummary({
    ragConfig,
}: {
    ragConfig?: RagConfig | null;
}) {
    const llm = ragConfig?.llm_config ?? {};
    const vectorDb = ragConfig?.vector_db ?? {};
    const retrieval = ragConfig?.retrieval ?? {};

    return (
        <section className="grid gap-6 xl:grid-cols-2">
            <Card className="border-(--lecturer-border) bg-(--lecturer-surface) xl:col-span-2">
                <CardHeader className="gap-3">
                    <div className="flex items-center justify-between gap-3">
                        <span className="rounded-xl bg-[var(--lecturer-primary-soft)] p-3 text-[var(--lecturer-primary)]">
                            <FileSliders className="size-5" />
                        </span>
                        <Badge variant="outline">RAG</Badge>
                    </div>
                    <div>
                        <CardTitle>Konfigurasi RAG</CardTitle>
                        <CardDescription>
                            Path config: {ragConfig?.path ?? '-'}
                        </CardDescription>
                    </div>
                </CardHeader>
            </Card>

            <Card className="border-(--lecturer-border) bg-(--lecturer-surface)">
                <CardHeader>
                    <CardTitle className="flex items-center gap-2">
                        <Shield className="size-5 text-[var(--lecturer-primary)]" />
                        LLM
                    </CardTitle>
                    <CardDescription>Ringkasan model aktif.</CardDescription>
                </CardHeader>
                <CardContent>
                    <ConfigRows
                        rows={[
                            ['Provider', llm.active_provider],
                            ['Model', llm.active_model],
                            ['Temperature', llm.temperature],
                            ['Max Tokens', llm.max_tokens],
                            ['Request Timeout', llm.request_timeout],
                        ]}
                    />
                </CardContent>
            </Card>

            <Card className="border-(--lecturer-border) bg-(--lecturer-surface)">
                <CardHeader>
                    <CardTitle className="flex items-center gap-2">
                        <Database className="size-5 text-[var(--lecturer-primary)]" />
                        VectorDB
                    </CardTitle>
                    <CardDescription>Ringkasan embedding dan chunk.</CardDescription>
                </CardHeader>
                <CardContent>
                    <ConfigRows
                        rows={[
                            ['Embedding Model', vectorDb.embedding_model],
                            ['Persist Path', vectorDb.persist_path],
                            ['Chunk Size', vectorDb.chunk_size],
                            ['Chunk Overlap', vectorDb.chunk_overlap],
                        ]}
                    />
                </CardContent>
            </Card>

            <Card className="border-(--lecturer-border) bg-(--lecturer-surface) xl:col-span-2">
                <CardHeader>
                    <CardTitle className="flex items-center gap-2">
                        <Search className="size-5 text-[var(--lecturer-primary)]" />
                        Retrieval
                    </CardTitle>
                    <CardDescription>
                        Ringkasan bobot dan batas konteks retrieval.
                    </CardDescription>
                </CardHeader>
                <CardContent>
                    <ConfigRows
                        rows={[
                            ['Top K', retrieval.top_k],
                            ['Max Context Chars', retrieval.max_context_chars],
                            ['BM25 Weight', retrieval.bm25_weight],
                            ['Dense Weight', retrieval.dense_weight],
                            ['Lexical Weight', retrieval.lexical_weight],
                            [
                                'Similarity Threshold',
                                retrieval.similarity_threshold,
                            ],
                            ['History Turns', retrieval.history_turns],
                            [
                                'Candidate Pool Size',
                                retrieval.candidate_pool_size,
                            ],
                            ['Neighbor Window', retrieval.neighbor_window],
                            ['Reranker Model', retrieval.reranker_model],
                            ['Enable Reranker', retrieval.enable_reranker],
                        ]}
                    />
                </CardContent>
            </Card>
        </section>
    );
}