feat: add AI extraction frontend page (Phase 2M)

2026-03-25 13:54:49 +01:00
parent ed83d23d06 65b70975eb
commit 2cf01073a3
7 changed files with 593 additions and 1 deletions
--- a/frontend/src/app/(app)/ai/extract/page.tsx
+++ b/frontend/src/app/(app)/ai/extract/page.tsx
@@ -0,0 +1,142 @@
+"use client";
+
+import { useState } from "react";
+import { useQuery } from "@tanstack/react-query";
+import { useRouter } from "next/navigation";
+import { toast } from "sonner";
+import { Brain } from "lucide-react";
+import { api } from "@/lib/api";
+import type {
+  Case,
+  ExtractedDeadline,
+  ExtractionResponse,
+  PaginatedResponse,
+} from "@/lib/types";
+import { ExtractionForm } from "@/components/ai/ExtractionForm";
+import { ExtractionResults } from "@/components/ai/ExtractionResults";
+
+export default function AIExtractPage() {
+  const router = useRouter();
+  const [selectedCaseId, setSelectedCaseId] = useState("");
+  const [isExtracting, setIsExtracting] = useState(false);
+  const [isAdopting, setIsAdopting] = useState(false);
+  const [results, setResults] = useState<ExtractedDeadline[] | null>(null);
+
+  const { data: casesData } = useQuery({
+    queryKey: ["cases"],
+    queryFn: () => api.get<PaginatedResponse<Case>>("/api/cases"),
+  });
+
+  const cases = casesData?.data ?? [];
+
+  async function handleExtract(file: File | null, text: string) {
+    setIsExtracting(true);
+    setResults(null);
+
+    try {
+      let response: ExtractionResponse;
+
+      if (file) {
+        const formData = new FormData();
+        formData.append("file", file);
+        response = await api.postFormData<ExtractionResponse>(
+          "/api/ai/extract-deadlines",
+          formData,
+        );
+      } else {
+        response = await api.post<ExtractionResponse>(
+          "/api/ai/extract-deadlines",
+          { text },
+        );
+      }
+
+      setResults(response.deadlines);
+
+      if (response.count === 0) {
+        toast.info("Keine Fristen im Dokument gefunden.");
+      } else {
+        toast.success(`${response.count} Frist(en) erkannt.`);
+      }
+    } catch (err: unknown) {
+      const message =
+        err && typeof err === "object" && "error" in err
+          ? (err as { error: string }).error
+          : "Analyse fehlgeschlagen";
+      toast.error(message);
+    } finally {
+      setIsExtracting(false);
+    }
+  }
+
+  async function handleAdopt(deadlines: ExtractedDeadline[]) {
+    if (!selectedCaseId) return;
+    setIsAdopting(true);
+
+    try {
+      const promises = deadlines.map((d) =>
+        api.post(`/api/cases/${selectedCaseId}/deadlines`, {
+          title: d.title,
+          due_date: d.due_date ?? "",
+          source: "ai_extraction",
+          notes: [
+            d.rule_reference ? `Rechtsgrundlage: ${d.rule_reference}` : "",
+            d.source_quote ? `Quelle: "${d.source_quote}"` : "",
+            `Konfidenz: ${Math.round(d.confidence * 100)}%`,
+          ]
+            .filter(Boolean)
+            .join("\n"),
+        }),
+      );
+
+      await Promise.all(promises);
+      toast.success(
+        `${deadlines.length} Frist(en) erfolgreich uebernommen.`,
+      );
+      router.push(`/akten/${selectedCaseId}`);
+    } catch (err: unknown) {
+      const message =
+        err && typeof err === "object" && "error" in err
+          ? (err as { error: string }).error
+          : "Uebernahme fehlgeschlagen";
+      toast.error(message);
+    } finally {
+      setIsAdopting(false);
+    }
+  }
+
+  return (
+    <div className="mx-auto max-w-4xl">
+      <div className="mb-6 flex items-center gap-3">
+        <Brain className="h-5 w-5 text-neutral-500" />
+        <div>
+          <h1 className="text-lg font-semibold text-neutral-900">
+            AI Fristenanalyse
+          </h1>
+          <p className="text-sm text-neutral-500">
+            Fristen automatisch aus Dokumenten extrahieren
+          </p>
+        </div>
+      </div>
+
+      <div className="rounded-lg border border-neutral-200 bg-white p-6">
+        <ExtractionForm
+          cases={cases}
+          selectedCaseId={selectedCaseId}
+          onCaseChange={setSelectedCaseId}
+          onExtract={handleExtract}
+          isLoading={isExtracting}
+        />
+      </div>
+
+      {results !== null && (
+        <div className="mt-6 rounded-lg border border-neutral-200 bg-white p-6">
+          <ExtractionResults
+            deadlines={results}
+            onAdopt={handleAdopt}
+            isAdopting={isAdopting}
+          />
+        </div>
+      )}
+    </div>
+  );
+}