import { NextRequest, NextResponse } from "next/server";
import { jsonError, parseOptionalInt, parsePositiveInt, parseTimestampRange } from "@/lib/api-params";
import { getLogs } from "@/lib/queries";

export async function GET(req: NextRequest) {
  try {
    const sp = req.nextUrl.searchParams;
    const range = parseTimestampRange(sp);
    if (!range.ok) return jsonError(range.field);

    const page = parsePositiveInt(sp.get("page"), {
      field: "page",
      defaultValue: 1,
      min: 1,
    });
    if (!page.ok) return jsonError(page.field);

    const pageSize = parsePositiveInt(sp.get("page_size"), {
      field: "page_size",
      defaultValue: 100,
      min: 1,
      max: 200,
    });
    if (!pageSize.ok) return jsonError(pageSize.field);

    const channelId = parseOptionalInt(sp.get("channel_id"), "channel_id");
    if (!channelId.ok) return jsonError(channelId.field);
    if (channelId.value === 0) return jsonError("channel_id");

    const data = await getLogs({
      page: page.value,
      pageSize: pageSize.value,
      startTs: range.value.startTs,
      endTs: range.value.endTs,
      username: sp.get("username") || undefined,
      model: sp.get("model") || undefined,
      channelId: channelId.value,
      tokenName: sp.get("token_name") || undefined,
    });

    return NextResponse.json(data);
  } catch (error) {
    console.error("Failed to load logs", error);
    return jsonError(undefined, 500);
  }
}