mirror of
https://github.com/MODSetter/SurfSense.git
synced 2026-04-26 01:06:23 +02:00
465 lines
14 KiB
TypeScript
465 lines
14 KiB
TypeScript
"use client";
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import { makeAssistantToolUI } from "@assistant-ui/react";
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import { AlertCircleIcon, Loader2Icon, MicIcon } from "lucide-react";
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import { useCallback, useEffect, useRef, useState } from "react";
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import { z } from "zod";
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import { Audio } from "@/components/tool-ui/audio";
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import { baseApiService } from "@/lib/apis/base-api.service";
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import { authenticatedFetch } from "@/lib/auth-utils";
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import { clearActivePodcastTaskId, setActivePodcastTaskId } from "@/lib/chat/podcast-state";
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/**
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* Zod schemas for runtime validation
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*/
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const GeneratePodcastArgsSchema = z.object({
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source_content: z.string(),
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podcast_title: z.string().optional(),
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user_prompt: z.string().optional(),
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});
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const GeneratePodcastResultSchema = z.object({
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status: z.enum(["processing", "already_generating", "success", "error"]),
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task_id: z.string().optional(),
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podcast_id: z.number().optional(),
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title: z.string().optional(),
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transcript_entries: z.number().optional(),
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message: z.string().optional(),
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error: z.string().optional(),
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});
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const TaskStatusResponseSchema = z.object({
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status: z.enum(["processing", "success", "error"]),
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podcast_id: z.number().optional(),
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title: z.string().optional(),
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transcript_entries: z.number().optional(),
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state: z.string().optional(),
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error: z.string().optional(),
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});
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const PodcastTranscriptEntrySchema = z.object({
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speaker_id: z.number(),
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dialog: z.string(),
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});
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const PodcastDetailsSchema = z.object({
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podcast_transcript: z.array(PodcastTranscriptEntrySchema).optional(),
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});
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/**
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* Types derived from Zod schemas
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*/
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type GeneratePodcastArgs = z.infer<typeof GeneratePodcastArgsSchema>;
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type GeneratePodcastResult = z.infer<typeof GeneratePodcastResultSchema>;
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type TaskStatusResponse = z.infer<typeof TaskStatusResponseSchema>;
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type PodcastTranscriptEntry = z.infer<typeof PodcastTranscriptEntrySchema>;
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/**
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* Parse and validate task status response
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*/
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function parseTaskStatusResponse(data: unknown): TaskStatusResponse {
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const result = TaskStatusResponseSchema.safeParse(data);
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if (!result.success) {
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console.warn("Invalid task status response:", result.error.issues);
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return { status: "error", error: "Invalid response from server" };
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}
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return result.data;
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}
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/**
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* Parse and validate podcast details
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*/
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function parsePodcastDetails(data: unknown): { podcast_transcript?: PodcastTranscriptEntry[] } {
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const result = PodcastDetailsSchema.safeParse(data);
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if (!result.success) {
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console.warn("Invalid podcast details:", result.error.issues);
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return {};
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}
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return result.data;
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}
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/**
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* Loading state component shown while podcast is being generated
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*/
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function PodcastGeneratingState({ title }: { title: string }) {
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return (
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<div className="my-4 overflow-hidden rounded-xl border border-primary/20 bg-gradient-to-br from-primary/5 to-primary/10 p-6">
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<div className="flex items-center gap-4">
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<div className="relative">
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<div className="flex size-16 items-center justify-center rounded-full bg-primary/20">
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<MicIcon className="size-8 text-primary" />
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</div>
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{/* Animated rings */}
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<div className="absolute inset-1 animate-ping rounded-full bg-primary/20" />
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</div>
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<div className="flex-1">
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<h3 className="font-semibold text-foreground text-lg">{title}</h3>
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<div className="mt-2 flex items-center gap-2 text-muted-foreground">
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<Loader2Icon className="size-4 animate-spin" />
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<span className="text-sm">Generating podcast... This may take a few minutes</span>
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</div>
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<div className="mt-3">
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<div className="h-1.5 w-full overflow-hidden rounded-full bg-primary/10">
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<div className="h-full w-1/3 animate-pulse rounded-full bg-primary" />
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</div>
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</div>
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</div>
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</div>
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</div>
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);
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}
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/**
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* Error state component shown when podcast generation fails
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*/
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function PodcastErrorState({ title, error }: { title: string; error: string }) {
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return (
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<div className="my-4 overflow-hidden rounded-xl border border-destructive/20 bg-destructive/5 p-6">
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<div className="flex items-center gap-4">
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<div className="flex size-16 shrink-0 items-center justify-center rounded-full bg-destructive/10">
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<AlertCircleIcon className="size-8 text-destructive" />
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</div>
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<div className="flex-1">
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<h3 className="font-semibold text-foreground">{title}</h3>
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<p className="mt-1 text-destructive text-sm">Failed to generate podcast</p>
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<p className="mt-2 text-muted-foreground text-sm">{error}</p>
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</div>
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</div>
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</div>
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);
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}
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/**
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* Audio loading state component
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*/
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function AudioLoadingState({ title }: { title: string }) {
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return (
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<div className="my-4 overflow-hidden rounded-xl border bg-muted/30 p-6">
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<div className="flex items-center gap-4">
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<div className="flex size-16 items-center justify-center rounded-full bg-primary/10">
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<MicIcon className="size-8 text-primary/50" />
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</div>
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<div className="flex-1">
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<h3 className="font-semibold text-foreground">{title}</h3>
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<div className="mt-2 flex items-center gap-2 text-muted-foreground">
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<Loader2Icon className="size-4 animate-spin" />
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<span className="text-sm">Loading audio...</span>
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</div>
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</div>
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</div>
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</div>
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);
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}
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/**
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* Podcast Player Component - Fetches audio and transcript with authentication
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*/
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function PodcastPlayer({
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podcastId,
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title,
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description,
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durationMs,
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}: {
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podcastId: number;
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title: string;
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description: string;
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durationMs?: number;
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}) {
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const [audioSrc, setAudioSrc] = useState<string | null>(null);
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const [transcript, setTranscript] = useState<PodcastTranscriptEntry[] | null>(null);
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const [isLoading, setIsLoading] = useState(true);
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const [error, setError] = useState<string | null>(null);
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const objectUrlRef = useRef<string | null>(null);
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// Cleanup object URL on unmount
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useEffect(() => {
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return () => {
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if (objectUrlRef.current) {
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URL.revokeObjectURL(objectUrlRef.current);
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}
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};
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}, []);
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// Fetch audio and podcast details (including transcript)
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const loadPodcast = useCallback(async () => {
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setIsLoading(true);
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setError(null);
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try {
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// Revoke previous object URL if exists
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if (objectUrlRef.current) {
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URL.revokeObjectURL(objectUrlRef.current);
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objectUrlRef.current = null;
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}
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const controller = new AbortController();
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const timeoutId = setTimeout(() => controller.abort(), 60000); // 60s timeout
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try {
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// Fetch audio blob and podcast details in parallel
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const [audioResponse, rawPodcastDetails] = await Promise.all([
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authenticatedFetch(
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`${process.env.NEXT_PUBLIC_FASTAPI_BACKEND_URL}/api/v1/podcasts/${podcastId}/audio`,
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{ method: "GET", signal: controller.signal }
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),
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baseApiService.get<unknown>(`/api/v1/podcasts/${podcastId}`),
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]);
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if (!audioResponse.ok) {
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throw new Error(`Failed to load audio: ${audioResponse.status}`);
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}
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const audioBlob = await audioResponse.blob();
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// Create object URL from blob
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const objectUrl = URL.createObjectURL(audioBlob);
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objectUrlRef.current = objectUrl;
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setAudioSrc(objectUrl);
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// Parse and validate podcast details, then set transcript
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const podcastDetails = parsePodcastDetails(rawPodcastDetails);
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if (podcastDetails.podcast_transcript) {
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setTranscript(podcastDetails.podcast_transcript);
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}
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} finally {
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clearTimeout(timeoutId);
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}
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} catch (err) {
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console.error("Error loading podcast:", err);
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if (err instanceof DOMException && err.name === "AbortError") {
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setError("Request timed out. Please try again.");
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} else {
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setError(err instanceof Error ? err.message : "Failed to load podcast");
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}
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} finally {
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setIsLoading(false);
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}
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}, [podcastId]);
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// Load podcast when component mounts
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useEffect(() => {
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loadPodcast();
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}, [loadPodcast]);
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if (isLoading) {
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return <AudioLoadingState title={title} />;
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}
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if (error || !audioSrc) {
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return <PodcastErrorState title={title} error={error || "Failed to load audio"} />;
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}
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return (
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<div className="my-4">
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<Audio
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id={`podcast-${podcastId}`}
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src={audioSrc}
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title={title}
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description={description}
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durationMs={durationMs}
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className="w-full"
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/>
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{/* Transcript section */}
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{transcript && transcript.length > 0 && (
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<details className="mt-3 rounded-lg border bg-muted/30 p-3">
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<summary className="cursor-pointer font-medium text-muted-foreground text-sm hover:text-foreground">
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View transcript ({transcript.length} entries)
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</summary>
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<div className="mt-3 space-y-3 max-h-96 overflow-y-auto">
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{transcript.map((entry, idx) => (
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<div key={`${idx}-${entry.speaker_id}`} className="text-sm">
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<span className="font-medium text-primary">Speaker {entry.speaker_id + 1}:</span>{" "}
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<span className="text-muted-foreground">{entry.dialog}</span>
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</div>
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))}
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</div>
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</details>
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)}
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</div>
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);
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}
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/**
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* Polling component that checks task status and shows player when complete
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*/
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function PodcastTaskPoller({ taskId, title }: { taskId: string; title: string }) {
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const [taskStatus, setTaskStatus] = useState<TaskStatusResponse>({ status: "processing" });
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const pollingRef = useRef<NodeJS.Timeout | null>(null);
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// Set active podcast state when this component mounts
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useEffect(() => {
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setActivePodcastTaskId(taskId);
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// Clear when component unmounts
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return () => {
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// Only clear if this task is still the active one
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clearActivePodcastTaskId();
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};
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}, [taskId]);
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// Poll for task status
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useEffect(() => {
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const pollStatus = async () => {
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try {
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const rawResponse = await baseApiService.get<unknown>(
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`/api/v1/podcasts/task/${taskId}/status`
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);
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const response = parseTaskStatusResponse(rawResponse);
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setTaskStatus(response);
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// Stop polling if task is complete or errored
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if (response.status !== "processing") {
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if (pollingRef.current) {
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clearInterval(pollingRef.current);
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pollingRef.current = null;
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}
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// Clear the active podcast state when task completes
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clearActivePodcastTaskId();
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}
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} catch (err) {
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console.error("Error polling task status:", err);
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// Don't stop polling on network errors, continue polling
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}
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};
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// Initial poll
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pollStatus();
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// Poll every 5 seconds
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pollingRef.current = setInterval(pollStatus, 5000);
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return () => {
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if (pollingRef.current) {
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clearInterval(pollingRef.current);
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}
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};
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}, [taskId]);
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// Show loading state while processing
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if (taskStatus.status === "processing") {
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return <PodcastGeneratingState title={title} />;
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}
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// Show error state
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if (taskStatus.status === "error") {
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return <PodcastErrorState title={title} error={taskStatus.error || "Generation failed"} />;
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}
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// Show player when complete
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if (taskStatus.status === "success" && taskStatus.podcast_id) {
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return (
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<PodcastPlayer
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podcastId={taskStatus.podcast_id}
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title={taskStatus.title || title}
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description={
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taskStatus.transcript_entries
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? `${taskStatus.transcript_entries} dialogue entries`
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: "SurfSense AI-generated podcast"
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}
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/>
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);
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}
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// Fallback
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return <PodcastErrorState title={title} error="Unexpected state" />;
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}
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/**
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* Generate Podcast Tool UI Component
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*
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* This component is registered with assistant-ui to render custom UI
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* when the generate_podcast tool is called by the agent.
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*
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* It polls for task completion and auto-updates when the podcast is ready.
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*/
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export const GeneratePodcastToolUI = makeAssistantToolUI<
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GeneratePodcastArgs,
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GeneratePodcastResult
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>({
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toolName: "generate_podcast",
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render: function GeneratePodcastUI({ args, result, status }) {
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const title = args.podcast_title || "SurfSense Podcast";
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// Loading state - tool is still running (agent processing)
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if (status.type === "running" || status.type === "requires-action") {
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return <PodcastGeneratingState title={title} />;
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}
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// Incomplete/cancelled state
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if (status.type === "incomplete") {
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if (status.reason === "cancelled") {
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return (
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<div className="my-4 rounded-xl border border-muted p-4 text-muted-foreground">
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<p className="flex items-center gap-2">
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<MicIcon className="size-4" />
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<span className="line-through">Podcast generation cancelled</span>
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</p>
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</div>
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);
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}
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if (status.reason === "error") {
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return (
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<PodcastErrorState
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title={title}
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error={typeof status.error === "string" ? status.error : "An error occurred"}
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/>
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);
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}
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}
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// No result yet
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if (!result) {
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return <PodcastGeneratingState title={title} />;
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}
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// Error result
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if (result.status === "error") {
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return <PodcastErrorState title={title} error={result.error || "Unknown error"} />;
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}
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// Already generating - show simple warning, don't create another poller
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// The FIRST tool call will display the podcast when ready
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if (result.status === "already_generating") {
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return (
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<div className="my-4 overflow-hidden rounded-xl border border-amber-500/20 bg-amber-500/5 p-4">
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<div className="flex items-center gap-3">
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<div className="flex size-10 shrink-0 items-center justify-center rounded-full bg-amber-500/20">
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<MicIcon className="size-5 text-amber-500" />
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</div>
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<div>
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<p className="text-amber-600 dark:text-amber-400 text-sm font-medium">
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Podcast already in progress
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</p>
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<p className="text-muted-foreground text-xs mt-0.5">
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Please wait for the current podcast to complete.
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</p>
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</div>
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</div>
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</div>
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);
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}
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// Processing - poll for completion
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if (result.status === "processing" && result.task_id) {
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return <PodcastTaskPoller taskId={result.task_id} title={result.title || title} />;
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}
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// Success with podcast_id (direct result, not via polling)
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if (result.status === "success" && result.podcast_id) {
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return (
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<PodcastPlayer
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podcastId={result.podcast_id}
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title={result.title || title}
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description={
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result.transcript_entries
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? `${result.transcript_entries} dialogue entries`
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: "SurfSense AI-generated podcast"
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}
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/>
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);
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}
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// Fallback - missing required data
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return <PodcastErrorState title={title} error="Missing task ID or podcast ID" />;
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},
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});
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