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import { useTranslation } from 'react-i18next';
import { Database, Trash2, RefreshCw, Search, ChevronLeft, ChevronRight, Loader2, FileText, Wand2, CheckCircle2 } from 'lucide-react';
import { api } from '../lib/api';
import { useAuth } from '../lib/auth';
import { useTenant } from '../lib/tenant';
import { useToast } from '../hooks/useToast';
import { logError } from '../lib/logger';
interface KbEntry {
id: string;
content: string;
metadata?: Record<string, unknown>;
createdAt: string;
}
interface KbResponse {
entries: KbEntry[];
total: number;
page: number;
limit: number;
}
const PAGE_SIZE = 20;
export default function KnowledgeBasePage() {
const { t } = useTranslation();
const toast = useToast();
const { token } = useAuth();
const { selectedOrgId } = useTenant();
const [data, setData] = useState<KbResponse | null>(null);
const [loading, setLoading] = useState(true);
const [page, setPage] = useState(1);
const [search, setSearch] = useState('');
const [deletingId, setDeletingId] = useState<string | null>(null);
const [reindexing, setReindexing] = useState(false);
const [genDescription, setGenDescription] = useState('');
const [generating, setGenerating] = useState(false);
const [genResult, setGenResult] = useState<{ faqCount: number; chunksIndexed: number; preview: Array<{ question: string; answer: string }> } | null>(null);
const fetchEntries = async (p = page) => {
if (!token || !selectedOrgId) return;
setLoading(true);
try {
const res = await api.get(
`/v1/organizations/${selectedOrgId}/kb?page=${p}&limit=${PAGE_SIZE}`,
token
);
setData(res);
} catch (err) {
logError('[KB] Failed to fetch entries:', err);
} finally {
setLoading(false);
}
};
useEffect(() => {
fetchEntries(1);
setPage(1);
}, [token, selectedOrgId]);
const handleDelete = async (id: string) => {
if (!token || !selectedOrgId) return;
if (!confirm(t('knowledge.confirm_delete'))) return;
setDeletingId(id);
try {
await api.delete(`/v1/organizations/${selectedOrgId}/kb/${id}`, token);
await fetchEntries(page);
} catch (err: any) {
logError('[KB] Delete failed:', err);
toast.error(err?.message ?? t('knowledge.delete_error'));
} finally {
setDeletingId(null);
}
};
const handleReindex = async () => {
if (!token || !selectedOrgId) return;
setReindexing(true);
try {
await api.post(`/v1/organizations/${selectedOrgId}/index-kb`, {}, token);
toast.success(t('knowledge.reindex_success'));
} catch (err: any) {
const msg: string = err?.message ?? '';
if (msg.toLowerCase().includes('no kb url') || msg.toLowerCase().includes('not configured')) {
toast.error(t('knowledge.no_kb_url'));
} else {
logError('[KB] Re-index failed:', err);
toast.error(t('knowledge.reindex_error'));
}
} finally {
setReindexing(false);
}
};
const handleGenerate = async () => {
if (!token || !selectedOrgId || !genDescription.trim()) return;
setGenerating(true);
setGenResult(null);
try {
const res = await api.post(
`/v1/organizations/${selectedOrgId}/kb/generate`,
{ description: genDescription },
token
);
setGenResult(res);
toast.success(t('knowledge.generate_success_count', { count: res.faqCount }));
await fetchEntries(1);
setPage(1);
} catch (err: any) {
logError('[KB] Generate failed:', err);
toast.error(err?.message ?? t('knowledge.generate_error'));
} finally {
setGenerating(false);
}
};
const handlePageChange = (newPage: number) => {
setPage(newPage);
fetchEntries(newPage);
};
const filteredEntries = (data?.entries ?? []).filter(e =>
!search || e.content.toLowerCase().includes(search.toLowerCase())
);
const totalPages = data ? Math.ceil(data.total / PAGE_SIZE) : 1;
return (
<div className="p-8 max-w-5xl mx-auto">
<div className="flex items-center justify-between mb-8">
<div className="flex items-center gap-3">
<div className="w-10 h-10 bg-violet-100 rounded-2xl flex items-center justify-center">
<Database className="w-5 h-5 text-violet-600" />
</div>
<div>
<h1 className="text-2xl font-bold text-slate-900">{t('knowledge.title')}</h1>
<p className="text-sm text-slate-500">
{data ? `${data.total} ${t('knowledge.chunks')}` : t('common.loading')}
</p>
</div>
</div>
<button
onClick={handleReindex}
disabled={reindexing}
className="flex items-center gap-2 px-4 py-2 bg-violet-600 text-white rounded-xl text-sm font-medium hover:bg-violet-700 transition disabled:opacity-50"
>
<RefreshCw className={`w-4 h-4 ${reindexing ? 'animate-spin' : ''}`} />
{reindexing ? t('knowledge.reindexing') : t('knowledge.reindex')}
</button>
</div>
{/* KB Auto-Generation Panel */}
<div className="bg-white rounded-2xl border border-slate-100 p-5 mb-6">
<div className="flex items-center gap-2 mb-3">
<Wand2 className="w-4 h-4 text-violet-500" />
<h2 className="text-sm font-semibold text-slate-700">{t('knowledge.generate_from_desc')}</h2>
</div>
<textarea
value={genDescription}
onChange={e => setGenDescription(e.target.value)}
placeholder={t('knowledge.generate_placeholder')}
rows={3}
className="w-full px-3 py-2 border border-slate-200 rounded-xl text-sm outline-none focus:ring-2 focus:ring-violet-400 resize-none mb-3"
/>
<button
onClick={handleGenerate}
disabled={generating || !genDescription.trim()}
className="flex items-center gap-2 px-4 py-2 bg-violet-600 text-white rounded-xl text-sm font-medium hover:bg-violet-700 transition disabled:opacity-50"
>
{generating ? <Loader2 className="w-4 h-4 animate-spin" /> : <Wand2 className="w-4 h-4" />}
{generating ? t('knowledge.generating_btn') : t('knowledge.generate_btn')}
</button>
{genResult && (
<div className="mt-4 pt-4 border-t border-slate-100">
<p className="text-sm font-medium text-slate-700 mb-3">
<CheckCircle2 className="inline w-4 h-4 text-green-500 mr-1" />
{t('knowledge.generate_result_summary', { count: genResult.faqCount, chunks: genResult.chunksIndexed })}
</p>
<div className="space-y-2">
{genResult.preview.slice(0, 3).map((qa, i) => (
<div key={i} className="bg-slate-50 rounded-xl p-3 text-sm">
<p className="font-medium text-slate-700 mb-1">Q: {qa.question}</p>
<p className="text-slate-500">R: {qa.answer}</p>
</div>
))}
</div>
</div>
)}
</div>
<div className="relative mb-4">
<Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-slate-400" />
<input
type="text"
placeholder={t('knowledge.search_placeholder')}
value={search}
onChange={e => setSearch(e.target.value)}
className="w-full pl-10 pr-4 py-2.5 border border-slate-200 rounded-xl text-sm outline-none focus:ring-2 focus:ring-violet-400"
/>
</div>
{loading ? (
<div className="flex items-center justify-center py-20">
<Loader2 className="w-8 h-8 animate-spin text-slate-400" />
</div>
) : filteredEntries.length === 0 ? (
<div className="text-center py-20 text-slate-400">
<FileText className="w-12 h-12 mx-auto mb-3 opacity-30" />
<p className="font-medium">{t('knowledge.no_documents')}</p>
<p className="text-sm mt-1">{t('knowledge.import_hint')}</p>
</div>
) : (
<div className="space-y-3">
{filteredEntries.map((entry, i) => (
<div key={entry.id} className="bg-white rounded-2xl border border-slate-100 p-5 hover:shadow-sm transition group">
<div className="flex items-start justify-between gap-4">
<div className="flex-1 min-w-0">
<div className="flex items-center gap-2 mb-2">
<span className="text-xs font-mono bg-slate-100 text-slate-500 px-2 py-0.5 rounded-lg">
#{(page - 1) * PAGE_SIZE + i + 1}
</span>
{entry.metadata && (
<span className="text-xs text-slate-400">
{Object.entries(entry.metadata as Record<string, unknown>)
.slice(0, 2)
.map(([k, v]) => `${k}: ${v}`)
.join(' · ')}
</span>
)}
<span className="text-xs text-slate-300 ml-auto">
{new Date(entry.createdAt).toLocaleDateString()}
</span>
</div>
<p className="text-sm text-slate-700 leading-relaxed line-clamp-4">
{entry.content}
</p>
</div>
<button
onClick={() => handleDelete(entry.id)}
disabled={deletingId === entry.id}
className="opacity-0 group-hover:opacity-100 p-2 text-red-400 hover:text-red-600 hover:bg-red-50 rounded-xl transition"
title="Supprimer ce chunk"
>
{deletingId === entry.id
? <Loader2 className="w-4 h-4 animate-spin" />
: <Trash2 className="w-4 h-4" />}
</button>
</div>
</div>
))}
</div>
)}
{!search && totalPages > 1 && (
<div className="flex items-center justify-between mt-6">
<p className="text-sm text-slate-500">Page {page} sur {totalPages}</p>
<div className="flex gap-2">
<button
onClick={() => handlePageChange(page - 1)}
disabled={page === 1}
className="p-2 rounded-xl border border-slate-200 hover:bg-slate-50 disabled:opacity-40 transition"
>
<ChevronLeft className="w-4 h-4" />
</button>
<button
onClick={() => handlePageChange(page + 1)}
disabled={page === totalPages}
className="p-2 rounded-xl border border-slate-200 hover:bg-slate-50 disabled:opacity-40 transition"
>
<ChevronRight className="w-4 h-4" />
</button>
</div>
</div>
)}
</div>
);
}
|