refactor not done

apps/web/src/app/api/auth/[...all]/route.ts

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+import { auth } from "@opencut/auth";
+import { toNextJsHandler } from "better-auth/next-js";
+
+export const { POST, GET } = toNextJsHandler(auth);

apps/web/src/app/api/get-upload-url/route.ts

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+import { NextRequest, NextResponse } from "next/server";
+import { z } from "zod";
+import { AwsClient } from "aws4fetch";
+import { nanoid } from "nanoid";
+import { env } from "@/env";
+import { checkRateLimit } from "@/lib/rate-limit";
+import { isTranscriptionConfigured } from "@/lib/transcription-utils";
+
+const uploadRequestSchema = z.object({
+  fileExtension: z.enum(["wav", "mp3", "m4a", "flac"], {
+    errorMap: () => ({
+      message: "File extension must be wav, mp3, m4a, or flac",
+    }),
+  }),
+});
+
+const apiResponseSchema = z.object({
+  uploadUrl: z.string().url(),
+  fileName: z.string().min(1),
+});
+
+export async function POST(request: NextRequest) {
+  try {
+    const { limited } = await checkRateLimit({ request });
+    if (limited) {
+      return NextResponse.json({ error: "Too many requests" }, { status: 429 });
+    }
+
+    const transcriptionCheck = isTranscriptionConfigured();
+    if (!transcriptionCheck.configured) {
+      console.error(
+        "Missing environment variables:",
+        JSON.stringify(transcriptionCheck.missingVars)
+      );
+
+      return NextResponse.json(
+        {
+          error: "Transcription not configured",
+          message: `Auto-captions require environment variables: ${transcriptionCheck.missingVars.join(", ")}. Check README for setup instructions.`,
+        },
+        { status: 503 }
+      );
+    }
+
+    const rawBody = await request.json().catch(() => null);
+    if (!rawBody) {
+      return NextResponse.json(
+        { error: "Invalid JSON in request body" },
+        { status: 400 }
+      );
+    }
+
+    const validationResult = uploadRequestSchema.safeParse(rawBody);
+    if (!validationResult.success) {
+      return NextResponse.json(
+        {
+          error: "Invalid request parameters",
+          details: validationResult.error.flatten().fieldErrors,
+        },
+        { status: 400 }
+      );
+    }
+
+    const { fileExtension } = validationResult.data;
+
+    const client = new AwsClient({
+      accessKeyId: env.R2_ACCESS_KEY_ID,
+      secretAccessKey: env.R2_SECRET_ACCESS_KEY,
+    });
+
+    const timestamp = Date.now();
+    const fileName = `audio/${timestamp}-${nanoid()}.${fileExtension}`;
+
+    const url = new URL(
+      `https://${env.R2_BUCKET_NAME}.${env.CLOUDFLARE_ACCOUNT_ID}.r2.cloudflarestorage.com/${fileName}`
+    );
+
+    url.searchParams.set("X-Amz-Expires", "3600"); // 1 hour expiry
+
+    const signed = await client.sign(new Request(url, { method: "PUT" }), {
+      aws: { signQuery: true },
+    });
+
+    if (!signed.url) {
+      throw new Error("Failed to generate presigned URL");
+    }
+
+    const responseData = {
+      uploadUrl: signed.url,
+      fileName,
+    };
+
+    const responseValidation = apiResponseSchema.safeParse(responseData);
+    if (!responseValidation.success) {
+      console.error(
+        "Invalid API response structure:",
+        responseValidation.error
+      );
+      return NextResponse.json(
+        { error: "Internal response formatting error" },
+        { status: 500 }
+      );
+    }
+
+    return NextResponse.json(responseValidation.data);
+  } catch (error) {
+    console.error("Error generating upload URL:", error);
+    return NextResponse.json(
+      {
+        error: "Failed to generate upload URL",
+        message:
+          error instanceof Error
+            ? error.message
+            : "An unexpected error occurred",
+      },
+      { status: 500 }
+    );
+  }
+}

apps/web/src/app/api/health/route.ts

@@ -0,0 +1,5 @@
+import { NextRequest } from "next/server";
+
+export async function GET(request: NextRequest) {
+  return new Response("OK", { status: 200 });
+}

apps/web/src/app/api/sounds/search/route.ts

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+import { NextRequest, NextResponse } from "next/server";
+import { z } from "zod";
+import { env } from "@/env";
+import { checkRateLimit } from "@/lib/rate-limit";
+
+const searchParamsSchema = z.object({
+  q: z.string().max(500, "Query too long").optional(),
+  type: z.enum(["songs", "effects"]).optional(),
+  page: z.coerce.number().int().min(1).max(1000).default(1),
+  page_size: z.coerce.number().int().min(1).max(150).default(20),
+  sort: z
+    .enum(["downloads", "rating", "created", "score"])
+    .default("downloads"),
+  min_rating: z.coerce.number().min(0).max(5).default(3),
+  commercial_only: z.coerce.boolean().default(true),
+});
+
+const freesoundResultSchema = z.object({
+  id: z.number(),
+  name: z.string(),
+  description: z.string(),
+  url: z.string().url(),
+  previews: z
+    .object({
+      "preview-hq-mp3": z.string().url(),
+      "preview-lq-mp3": z.string().url(),
+      "preview-hq-ogg": z.string().url(),
+      "preview-lq-ogg": z.string().url(),
+    })
+    .optional(),
+  download: z.string().url().optional(),
+  duration: z.number(),
+  filesize: z.number(),
+  type: z.string(),
+  channels: z.number(),
+  bitrate: z.number(),
+  bitdepth: z.number(),
+  samplerate: z.number(),
+  username: z.string(),
+  tags: z.array(z.string()),
+  license: z.string(),
+  created: z.string(),
+  num_downloads: z.number().optional(),
+  avg_rating: z.number().optional(),
+  num_ratings: z.number().optional(),
+});
+
+const freesoundResponseSchema = z.object({
+  count: z.number(),
+  next: z.string().url().nullable(),
+  previous: z.string().url().nullable(),
+  results: z.array(freesoundResultSchema),
+});
+
+const transformedResultSchema = z.object({
+  id: z.number(),
+  name: z.string(),
+  description: z.string(),
+  url: z.string(),
+  previewUrl: z.string().optional(),
+  downloadUrl: z.string().optional(),
+  duration: z.number(),
+  filesize: z.number(),
+  type: z.string(),
+  channels: z.number(),
+  bitrate: z.number(),
+  bitdepth: z.number(),
+  samplerate: z.number(),
+  username: z.string(),
+  tags: z.array(z.string()),
+  license: z.string(),
+  created: z.string(),
+  downloads: z.number().optional(),
+  rating: z.number().optional(),
+  ratingCount: z.number().optional(),
+});
+
+const apiResponseSchema = z.object({
+  count: z.number(),
+  next: z.string().nullable(),
+  previous: z.string().nullable(),
+  results: z.array(transformedResultSchema),
+  query: z.string().optional(),
+  type: z.string(),
+  page: z.number(),
+  pageSize: z.number(),
+  sort: z.string(),
+  minRating: z.number().optional(),
+});
+
+function buildSortParameter({ query, sort }: { query?: string; sort: string }) {
+  if (!query) return `${sort}_desc`;
+  return sort === "score" ? "score" : `${sort}_desc`;
+}
+
+function applyEffectsFilters({ 
+  params, 
+  min_rating, 
+  commercial_only 
+}: { 
+  params: URLSearchParams; 
+  min_rating: number; 
+  commercial_only: boolean; 
+}) {
+  params.append("filter", "duration:[* TO 30.0]");
+  params.append("filter", `avg_rating:[${min_rating} TO *]`);
+
+  if (commercial_only) {
+    params.append(
+      "filter",
+      'license:("Attribution" OR "Creative Commons 0" OR "Attribution Noncommercial" OR "Attribution Commercial")'
+    );
+  }
+
+  params.append(
+    "filter",
+    "tag:sound-effect OR tag:sfx OR tag:foley OR tag:ambient OR tag:nature OR tag:mechanical OR tag:electronic OR tag:impact OR tag:whoosh OR tag:explosion"
+  );
+}
+
+function transformFreesoundResult(result: z.infer<typeof freesoundResultSchema>) {
+  return {
+    id: result.id,
+    name: result.name,
+    description: result.description,
+    url: result.url,
+    previewUrl:
+      result.previews?.["preview-hq-mp3"] ||
+      result.previews?.["preview-lq-mp3"],
+    downloadUrl: result.download,
+    duration: result.duration,
+    filesize: result.filesize,
+    type: result.type,
+    channels: result.channels,
+    bitrate: result.bitrate,
+    bitdepth: result.bitdepth,
+    samplerate: result.samplerate,
+    username: result.username,
+    tags: result.tags,
+    license: result.license,
+    created: result.created,
+    downloads: result.num_downloads || 0,
+    rating: result.avg_rating || 0,
+    ratingCount: result.num_ratings || 0,
+  };
+}
+
+export async function GET(request: NextRequest) {
+  try {
+    const { limited } = await checkRateLimit({ request });
+    if (limited) {
+      return NextResponse.json({ error: "Too many requests" }, { status: 429 });
+    }
+
+    const { searchParams } = new URL(request.url);
+
+    const validationResult = searchParamsSchema.safeParse({
+      q: searchParams.get("q") || undefined,
+      type: searchParams.get("type") || undefined,
+      page: searchParams.get("page") || undefined,
+      page_size: searchParams.get("page_size") || undefined,
+      sort: searchParams.get("sort") || undefined,
+      min_rating: searchParams.get("min_rating") || undefined,
+    });
+
+    if (!validationResult.success) {
+      return NextResponse.json(
+        {
+          error: "Invalid parameters",
+          details: validationResult.error.flatten().fieldErrors,
+        },
+        { status: 400 }
+      );
+    }
+
+    const {
+      q: query,
+      type,
+      page,
+      page_size: pageSize,
+      sort,
+      min_rating,
+      commercial_only,
+    } = validationResult.data;
+
+    if (type === "songs") {
+      return NextResponse.json(
+        {
+          error: "Songs are not available yet",
+          message:
+            "Song search functionality is coming soon. Try searching for sound effects instead.",
+        },
+        { status: 501 }
+      );
+    }
+
+    const baseUrl = "https://freesound.org/apiv2/search/text/";
+
+    const sortParam = buildSortParameter({ query, sort });
+
+    const params = new URLSearchParams({
+      query: query || "",
+      token: env.FREESOUND_API_KEY,
+      page: page.toString(),
+      page_size: pageSize.toString(),
+      sort: sortParam,
+      fields:
+        "id,name,description,url,previews,download,duration,filesize,type,channels,bitrate,bitdepth,samplerate,username,tags,license,created,num_downloads,avg_rating,num_ratings",
+    });
+
+    const isEffectsSearch = type === "effects" || !type;
+    if (isEffectsSearch) {
+      applyEffectsFilters({ params, min_rating, commercial_only });
+    }
+
+    const response = await fetch(`${baseUrl}?${params.toString()}`);
+
+    if (!response.ok) {
+      const errorText = await response.text();
+      console.error("Freesound API error:", response.status, errorText);
+      return NextResponse.json(
+        { error: "Failed to search sounds" },
+        { status: response.status }
+      );
+    }
+
+    const rawData = await response.json();
+
+    const freesoundValidation = freesoundResponseSchema.safeParse(rawData);
+    if (!freesoundValidation.success) {
+      console.error(
+        "Invalid Freesound API response:",
+        freesoundValidation.error
+      );
+      return NextResponse.json(
+        { error: "Invalid response from Freesound API" },
+        { status: 502 }
+      );
+    }
+
+    const data = freesoundValidation.data;
+
+    const transformedResults = data.results.map(transformFreesoundResult);
+
+    const responseData = {
+      count: data.count,
+      next: data.next,
+      previous: data.previous,
+      results: transformedResults,
+      query: query || "",
+      type: type || "effects",
+      page,
+      pageSize,
+      sort,
+      minRating: min_rating,
+    };
+
+    const responseValidation = apiResponseSchema.safeParse(responseData);
+    if (!responseValidation.success) {
+      console.error(
+        "Invalid API response structure:",
+        responseValidation.error
+      );
+      return NextResponse.json(
+        { error: "Internal response formatting error" },
+        { status: 500 }
+      );
+    }
+
+    return NextResponse.json(responseValidation.data);
+  } catch (error) {
+    console.error("Error searching sounds:", error);
+    return NextResponse.json(
+      { error: "Internal server error" },
+      { status: 500 }
+    );
+  }
+}

apps/web/src/app/api/transcribe/route.ts

@@ -0,0 +1,197 @@
+import { NextRequest, NextResponse } from "next/server";
+import { z } from "zod";
+import { env } from "@/env";
+import { checkRateLimit } from "@/lib/rate-limit";
+import { isTranscriptionConfigured } from "@/lib/transcription-utils";
+
+const transcribeRequestSchema = z.object({
+  filename: z.string().min(1, "Filename is required"),
+  language: z.string().optional().default("auto"),
+  decryptionKey: z.string().min(1, "Decryption key is required").optional(),
+  iv: z.string().min(1, "IV is required").optional(),
+});
+
+const modalResponseSchema = z.object({
+  text: z.string(),
+  segments: z.array(
+    z.object({
+      id: z.number(),
+      seek: z.number(),
+      start: z.number(),
+      end: z.number(),
+      text: z.string(),
+      tokens: z.array(z.number()),
+      temperature: z.number(),
+      avg_logprob: z.number(),
+      compression_ratio: z.number(),
+      no_speech_prob: z.number(),
+    })
+  ),
+  language: z.string(),
+});
+
+const apiResponseSchema = z.object({
+  text: z.string(),
+  segments: z.array(
+    z.object({
+      id: z.number(),
+      seek: z.number(),
+      start: z.number(),
+      end: z.number(),
+      text: z.string(),
+      tokens: z.array(z.number()),
+      temperature: z.number(),
+      avg_logprob: z.number(),
+      compression_ratio: z.number(),
+      no_speech_prob: z.number(),
+    })
+  ),
+  language: z.string(),
+});
+
+function buildModalRequestBody({ filename, language, decryptionKey, iv }: {
+  filename: string;
+  language: string;
+  decryptionKey?: string;
+  iv?: string;
+}) {
+  const requestBody: Record<string, string> = {
+    filename,
+    language,
+  };
+
+  if (decryptionKey && iv) {
+    requestBody.decryptionKey = decryptionKey;
+    requestBody.iv = iv;
+  }
+
+  return requestBody;
+}
+
+function parseModalError({ errorText }: { errorText: string }) {
+  let errorMessage = "Transcription service unavailable";
+  try {
+    const errorData = JSON.parse(errorText);
+    errorMessage = errorData.error || errorMessage;
+  } catch {}
+  return errorMessage;
+}
+
+export async function POST(request: NextRequest) {
+  try {
+    const { limited } = await checkRateLimit({ request });
+    if (limited) {
+      return NextResponse.json({ error: "Too many requests" }, { status: 429 });
+    }
+
+    const transcriptionCheck = isTranscriptionConfigured();
+    if (!transcriptionCheck.configured) {
+      console.error(
+        "Missing environment variables:",
+        JSON.stringify(transcriptionCheck.missingVars)
+      );
+
+      return NextResponse.json(
+        {
+          error: "Transcription not configured",
+          message: `Auto-captions require environment variables: ${transcriptionCheck.missingVars.join(", ")}. Check README for setup instructions.`,
+        },
+        { status: 503 }
+      );
+    }
+
+    const rawBody = await request.json().catch(() => null);
+    if (!rawBody) {
+      return NextResponse.json(
+        { error: "Invalid JSON in request body" },
+        { status: 400 }
+      );
+    }
+
+    const validationResult = transcribeRequestSchema.safeParse(rawBody);
+    if (!validationResult.success) {
+      return NextResponse.json(
+        {
+          error: "Invalid request parameters",
+          details: validationResult.error.flatten().fieldErrors,
+        },
+        { status: 400 }
+      );
+    }
+
+    const { filename, language, decryptionKey, iv } = validationResult.data;
+
+    const modalRequestBody = buildModalRequestBody({ 
+      filename, 
+      language, 
+      decryptionKey, 
+      iv 
+    });
+
+    const response = await fetch(env.MODAL_TRANSCRIPTION_URL, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify(modalRequestBody),
+    });
+
+    if (!response.ok) {
+      const errorText = await response.text();
+      console.error("Modal API error:", response.status, errorText);
+
+      const errorMessage = parseModalError({ errorText });
+
+      return NextResponse.json(
+        {
+          error: errorMessage,
+          message: "Failed to process transcription request",
+        },
+        { status: response.status >= 500 ? 502 : response.status }
+      );
+    }
+
+    const rawResult = await response.json();
+    console.log("Raw Modal response:", JSON.stringify(rawResult, null, 2));
+
+    const modalValidation = modalResponseSchema.safeParse(rawResult);
+    if (!modalValidation.success) {
+      console.error("Invalid Modal API response:", modalValidation.error);
+      return NextResponse.json(
+        { error: "Invalid response from transcription service" },
+        { status: 502 }
+      );
+    }
+
+    const result = modalValidation.data;
+
+    const responseData = {
+      text: result.text,
+      segments: result.segments,
+      language: result.language,
+    };
+
+    const responseValidation = apiResponseSchema.safeParse(responseData);
+    if (!responseValidation.success) {
+      console.error(
+        "Invalid API response structure:",
+        responseValidation.error
+      );
+      return NextResponse.json(
+        { error: "Internal response formatting error" },
+        { status: 500 }
+      );
+    }
+
+    return NextResponse.json(responseValidation.data);
+  } catch (error) {
+    console.error("Transcription API error:", error);
+    return NextResponse.json(
+      {
+        error: "Internal server error",
+        message: "An unexpected error occurred during transcription",
+      },
+      { status: 500 }
+    );
+  }
+}