291 lines
14 KiB
TypeScript
291 lines
14 KiB
TypeScript
import axios from "axios";
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import { dataUrlToFile } from "@/lib/image-utils";
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import { getMediaBlob, uploadMediaFile, type UploadedFile } from "@/services/file-storage";
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import { imageToDataUrl } from "@/services/image-storage";
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import { buildApiUrl, type AiConfig } from "@/stores/use-config-store";
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import { useUserStore } from "@/stores/use-user-store";
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import type { ReferenceImage } from "@/types/image";
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import type { ReferenceVideo } from "@/types/media";
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type VideoResponse = { id: string; status?: string; error?: { message?: string } };
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type ApiVideoResponse = VideoResponse | { code?: number; data?: VideoResponse | null; msg?: string };
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type SeedanceTask = {
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id: string;
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status?: "queued" | "running" | "succeeded" | "failed" | "cancelled" | "expired";
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error?: { code?: string; message?: string } | null;
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content?: { video_url?: string; last_frame_url?: string } | null;
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};
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type ApiEnvelope<T> = T | { code?: number; data?: T | null; msg?: string };
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type ReferenceMediaUploadResponse = { id: string; url: string; mimeType: string; bytes: number };
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export type VideoGenerationResult = { blob?: Blob; url?: string; mimeType?: string };
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function aiApiUrl(config: AiConfig, path: string) {
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return config.channelMode === "remote" ? `/api/v1${path}` : buildApiUrl(config.baseUrl, path);
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}
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function aiHeaders(config: AiConfig, contentType?: string) {
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const token = useUserStore.getState().token;
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return config.channelMode === "remote"
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? {
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...(token ? { Authorization: `Bearer ${token}` } : {}),
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...(contentType ? { "Content-Type": contentType } : {}),
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}
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: {
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Authorization: `Bearer ${config.apiKey}`,
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...(contentType ? { "Content-Type": contentType } : {}),
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};
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}
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function refreshRemoteUser(config: AiConfig) {
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if (config.channelMode === "remote") void useUserStore.getState().hydrateUser();
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}
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export async function requestVideoGeneration(config: AiConfig, prompt: string, references: ReferenceImage[] = [], videoReferences: ReferenceVideo[] = []): Promise<VideoGenerationResult> {
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const model = (config.model || config.videoModel).trim();
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assertVideoConfig(config, model);
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if (isSeedanceConfig(config, model)) {
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return requestSeedanceGeneration(config, model, prompt, references, videoReferences);
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}
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if (videoReferences.length) {
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throw new Error("当前视频接口不支持参考视频，请切换到 Seedance 2.0 / 火山 Agent Plan 模型，或移除参考视频");
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}
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return requestOpenAIVideoGeneration(config, model, prompt, references);
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}
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export async function storeGeneratedVideo(result: VideoGenerationResult): Promise<UploadedFile> {
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if (result.blob) return uploadMediaFile(result.blob, "video");
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if (result.url) return { url: result.url, storageKey: "", bytes: 0, mimeType: result.mimeType || "video/mp4" };
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throw new Error("视频接口没有返回可播放的视频");
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}
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async function requestOpenAIVideoGeneration(config: AiConfig, model: string, prompt: string, references: ReferenceImage[]) {
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const body = new FormData();
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body.append("model", model);
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body.append("prompt", prompt);
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body.append("seconds", normalizeVideoSeconds(config.videoSeconds));
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if (normalizeVideoSize(config.size)) body.append("size", normalizeVideoSize(config.size)!);
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body.append("resolution_name", normalizeVideoResolution(config.vquality));
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body.append("preset", "normal");
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const files = await Promise.all(references.slice(0, 7).map(async (image) => dataUrlToFile({ ...image, dataUrl: await imageToDataUrl(image) })));
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files.forEach((file) => body.append("input_reference[]", file));
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try {
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const created = unwrapVideoResponse((await axios.post<ApiVideoResponse>(aiApiUrl(config, "/videos"), body, { headers: aiHeaders(config) })).data);
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if (!created.id) throw new Error("视频接口没有返回任务 ID");
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for (let attempt = 0; attempt < 120; attempt += 1) {
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const video = unwrapVideoResponse((await axios.get<ApiVideoResponse>(aiApiUrl(config, `/videos/${created.id}`), { headers: aiHeaders(config), params: config.channelMode === "remote" ? { model } : undefined })).data);
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if (video.status === "completed") break;
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if (video.status === "failed" || video.status === "cancelled") throw new Error(video.error?.message || "视频生成失败");
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if (attempt === 119) throw new Error("视频生成超时，请稍后重试");
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await delay(2500);
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}
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const content = await axios.get<Blob>(aiApiUrl(config, `/videos/${created.id}/content`), { headers: aiHeaders(config), params: config.channelMode === "remote" ? { model } : undefined, responseType: "blob" });
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await assertVideoBlob(content.data);
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refreshRemoteUser(config);
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return { blob: content.data };
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} catch (error) {
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throw new Error(readAxiosError(error, "视频生成失败"));
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}
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}
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async function requestSeedanceGeneration(config: AiConfig, model: string, prompt: string, references: ReferenceImage[], videoReferences: ReferenceVideo[]) {
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const content = await buildSeedanceContent(config, prompt, references, videoReferences);
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if (!content.length) throw new Error("请输入视频提示词，或连接参考图片/视频");
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const payload = {
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model,
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content,
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ratio: normalizeSeedanceRatio(config.size),
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resolution: normalizeVideoResolution(config.vquality),
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duration: normalizeSeedanceDuration(config.videoSeconds),
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watermark: false,
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};
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try {
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const created = unwrapSeedanceTask((await axios.post<ApiEnvelope<SeedanceTask>>(seedanceApiUrl(config), payload, { headers: aiHeaders(config, "application/json") })).data);
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if (!created.id) throw new Error("Seedance 接口没有返回任务 ID");
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for (let attempt = 0; attempt < 120; attempt += 1) {
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const task = unwrapSeedanceTask((await axios.get<ApiEnvelope<SeedanceTask>>(seedanceApiUrl(config, created.id), { headers: aiHeaders(config), params: config.channelMode === "remote" ? { model } : undefined })).data);
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if (task.status === "succeeded") {
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const url = task.content?.video_url;
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if (!url) throw new Error("Seedance 任务成功但没有返回视频 URL");
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refreshRemoteUser(config);
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return videoResultFromUrl(url);
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}
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if (task.status === "failed" || task.status === "cancelled" || task.status === "expired") throw new Error(task.error?.message || `Seedance 视频生成${task.status === "expired" ? "超时" : "失败"}`);
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if (attempt === 119) throw new Error("Seedance 视频生成超时，请稍后重试");
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await delay(5000);
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}
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throw new Error("Seedance 视频生成超时，请稍后重试");
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} catch (error) {
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throw new Error(readAxiosError(error, "Seedance 视频生成失败"));
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}
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}
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function seedanceApiUrl(config: AiConfig, taskId?: string) {
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if (config.channelMode === "remote") return taskId ? `/api/v1/videos/${encodeURIComponent(taskId)}` : "/api/v1/videos";
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return buildApiUrl(config.baseUrl, `/contents/generations/tasks${taskId ? `/${encodeURIComponent(taskId)}` : ""}`);
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}
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async function buildSeedanceContent(config: AiConfig, prompt: string, references: ReferenceImage[], videoReferences: ReferenceVideo[]) {
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const content: Array<Record<string, unknown>> = [];
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const text = prompt.trim();
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if (text) content.push({ type: "text", text });
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for (const image of references.slice(0, 7)) {
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content.push({ type: "image_url", image_url: { url: await resolveSeedanceImageUrl(config, image) }, role: "reference_image" });
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}
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for (const video of videoReferences.slice(0, 3)) {
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content.push({ type: "video_url", video_url: { url: await resolveSeedanceVideoUrl(video) }, role: "reference_video" });
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}
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return content;
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}
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async function resolveSeedanceImageUrl(config: AiConfig, image: ReferenceImage) {
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const directUrl = image.url || image.dataUrl;
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if (isPublicMediaUrl(directUrl) || directUrl.startsWith("asset://")) return directUrl;
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const dataUrl = await imageToDataUrl(image);
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if (!dataUrl) throw new Error("参考图读取失败，请换一张图片或重新上传");
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if (config.channelMode === "remote") {
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return uploadReferenceMedia(dataUrlToFile({ ...image, dataUrl }));
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}
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return dataUrl;
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}
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async function resolveSeedanceVideoUrl(video: ReferenceVideo) {
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if (isPublicMediaUrl(video.url) || video.url.startsWith("asset://")) return video.url;
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let blob: Blob | null = null;
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if (video.storageKey) blob = await getMediaBlob(video.storageKey);
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if (!blob && video.url?.startsWith("blob:")) blob = await (await fetch(video.url)).blob();
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if (!blob) throw new Error("参考视频必须是公网 URL、素材 ID，或本地已保存的视频");
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const file = new File([blob], video.name || "reference-video.mp4", { type: video.type || blob.type || "video/mp4" });
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return uploadReferenceMedia(file);
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}
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async function uploadReferenceMedia(file: File) {
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const token = useUserStore.getState().token;
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if (!token) throw new Error("使用本地参考素材需要先登录，并在服务端配置 PUBLIC_BASE_URL");
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const body = new FormData();
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body.append("file", file, file.name);
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const response = await axios.post<ApiEnvelope<ReferenceMediaUploadResponse>>("/api/v1/media/references", body, { headers: { Authorization: `Bearer ${token}` } });
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const payload = unwrapEnvelope(response.data, "参考素材上传失败");
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if (!payload.url) throw new Error("参考素材上传后没有返回公网 URL");
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return payload.url;
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}
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async function videoResultFromUrl(url: string): Promise<VideoGenerationResult> {
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try {
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const response = await axios.get<Blob>(url, { responseType: "blob" });
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await assertVideoBlob(response.data);
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return { blob: response.data };
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} catch {
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return { url, mimeType: "video/mp4" };
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}
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}
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function isSeedanceConfig(config: AiConfig, model: string) {
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const value = `${model} ${config.baseUrl}`.toLowerCase();
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return value.includes("seedance") || value.includes("doubao-seedance") || value.includes("ark.cn-beijing.volces.com/api/plan/v3");
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}
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function assertVideoConfig(config: AiConfig, model: string) {
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if (!model) throw new Error("请先配置视频模型");
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if (config.channelMode === "local" && !config.baseUrl.trim()) throw new Error("请先配置 Base URL");
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if (config.channelMode === "local" && !config.apiKey.trim()) throw new Error("请先配置 API Key");
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}
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function normalizeVideoSeconds(value: string) {
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const seconds = Math.floor(Number(value) || 6);
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return String(Math.max(1, Math.min(20, seconds)));
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}
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function normalizeSeedanceDuration(value: string) {
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const seconds = Math.floor(Number(value) || 5);
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return Math.max(4, Math.min(15, seconds));
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}
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function normalizeVideoSize(value: string) {
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if (value === "auto") return null;
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const size = value || "1280x720";
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if (/^\d+x\d+$/.test(size)) return size;
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return ["9:16", "2:3", "3:4"].includes(size) ? "720x1280" : "1280x720";
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}
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function normalizeSeedanceRatio(value: string) {
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if (!value || value === "auto") return "adaptive";
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if (["16:9", "4:3", "1:1", "3:4", "9:16", "21:9", "adaptive"].includes(value)) return value;
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const match = value.match(/^(\d+)x(\d+)$/);
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if (!match) return "adaptive";
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const width = Number(match[1]);
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const height = Number(match[2]);
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if (!width || !height) return "adaptive";
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const ratio = width / height;
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const options = [
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["16:9", 16 / 9],
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["4:3", 4 / 3],
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["1:1", 1],
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["3:4", 3 / 4],
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["9:16", 9 / 16],
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["21:9", 21 / 9],
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] as const;
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return options.reduce((best, item) => (Math.abs(item[1] - ratio) < Math.abs(best[1] - ratio) ? item : best), options[0])[0];
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}
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function normalizeVideoResolution(value: string) {
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if (value === "low") return "480p";
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if (value === "auto" || value === "high" || value === "medium") return "720p";
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const resolution = value.replace(/p$/i, "") || "720";
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return `${resolution}p`;
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}
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function unwrapVideoResponse(payload: ApiVideoResponse) {
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return unwrapEnvelope(payload, "接口没有返回视频任务");
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}
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function unwrapSeedanceTask(payload: ApiEnvelope<SeedanceTask>) {
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return unwrapEnvelope(payload, "Seedance 接口没有返回任务");
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}
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function unwrapEnvelope<T>(payload: ApiEnvelope<T>, emptyMessage: string): T {
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if (!payload) throw new Error(emptyMessage);
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if (typeof payload === "object" && "code" in payload && typeof payload.code === "number") {
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if (payload.code !== 0) throw new Error(payload.msg || "请求失败");
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if (!payload.data) throw new Error(emptyMessage);
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return payload.data;
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}
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return payload as T;
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}
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function readAxiosError(error: unknown, fallback: string) {
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if (axios.isAxiosError<{ error?: { message?: string }; msg?: string; code?: number }>(error)) {
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const responseData = error.response?.data;
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return responseData?.msg || responseData?.error?.message || statusMessage(error.response?.status, fallback);
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}
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return error instanceof Error ? error.message : fallback;
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}
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function statusMessage(status: number | undefined, fallback: string) {
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if (status === 401 || status === 403) return "鉴权失败，请检查 API Key、套餐权限或模型权限";
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if (status === 429) return "请求被限流或额度不足，请稍后重试";
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return status ? `${fallback}（${status}）` : fallback;
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}
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async function assertVideoBlob(blob: Blob) {
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if (!blob.type.includes("json")) return;
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let payload: { code?: number; msg?: string; error?: { message?: string } };
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try {
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payload = JSON.parse(await blob.text()) as { code?: number; msg?: string; error?: { message?: string } };
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} catch {
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return;
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}
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if (typeof payload.code === "number" && payload.code !== 0) throw new Error(payload.msg || "视频下载失败");
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if (payload.error?.message) throw new Error(payload.error.message);
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}
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function isPublicMediaUrl(value: string) {
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return /^https?:\/\//i.test(value || "");
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}
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function delay(ms: number) {
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return new Promise((resolve) => setTimeout(resolve, ms));
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}
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