import { NextResponse } from "next/server";
import { createSupabaseRouteClient } from "@/lib/supabase/server";
import type { MediaAsset } from "@/types/media";

export const dynamic = "force-dynamic";

export async function GET(request: Request) {
  const supabase = await createSupabaseRouteClient();
  const {
    data: { session },
  } = await supabase.auth.getSession();

  if (!session) {
    return NextResponse.json({ error: "未登录" }, { status: 401 });
  }

  const { searchParams } = new URL(request.url);
  const workspaceId = searchParams.get("workspaceId");
  const limit = Number.parseInt(searchParams.get("limit") ?? "12", 10);

  if (!workspaceId) {
    return NextResponse.json({ error: "缺少 workspaceId" }, { status: 400 });
  }

  let query = supabase
    .from("media_assets")
    .select("*")
    .eq("workspace_id", workspaceId)
    .order("created_at", { ascending: false })
    .limit(Number.isNaN(limit) ? 12 : limit);

  const assetType = searchParams.get("assetType");
  if (assetType) {
    query = query.eq("asset_type", assetType);
  }

  const { data, error } = await query;

  if (error) {
    return NextResponse.json({ error: error.message }, { status: 500 });
  }

  return NextResponse.json({ items: (data ?? []) as MediaAsset[] });
}

export async function POST(request: Request) {
  const supabase = await createSupabaseRouteClient();
  const {
    data: { session },
  } = await supabase.auth.getSession();

  if (!session) {
    return NextResponse.json({ error: "未登录" }, { status: 401 });
  }

  const payload = (await request.json()) as {
    workspaceId: string;
    documentId: string;
    fileUrl: string;
    thumbnailUrl?: string;
    assetType?: string;
    fileName?: string;
    fileSize?: number;
    mimeType?: string;
  };

  if (!payload.workspaceId || !payload.documentId || !payload.fileUrl) {
    return NextResponse.json({ error: "参数不完整" }, { status: 400 });
  }

  const { data, error } = await supabase
    .from("media_assets")
    .insert({
      workspace_id: payload.workspaceId,
      document_id: payload.documentId,
      file_url: payload.fileUrl,
      thumbnail_url: payload.thumbnailUrl ?? payload.fileUrl,
      asset_type: payload.assetType ?? "image",
      file_name: payload.fileName,
      file_size: payload.fileSize ?? null,
      mime_type: payload.mimeType ?? null,
      created_by: session.user.id,
    })
    .select("*")
    .single();

  if (error) {
    return NextResponse.json({ error: error.message }, { status: 500 });
  }

  return NextResponse.json({ asset: data as MediaAsset });
}