import type { IImageHistoryListData } from "#shared/types/openai";
import {
  clearNewApiAuthCookies,
  createApiLogger,
  createErrorResponse,
  createSuccessResponse,
  createUpstreamErrorResponse,
  getNewApiUserIdFromCookie,
  isUnauthorizedError,
  listImageGenerationHistory,
  toSafeLogError
} from "~~/server/utils";

const DEFAULT_PAGE = 1;
const DEFAULT_PAGE_SIZE = 10;
const MAX_PAGE_SIZE = 50;

export default defineEventHandler(async (event) => {
  const logger = createApiLogger("images.history.list");
  logger.info("开始");

  try {
    const userId = getNewApiUserIdFromCookie(event);
    const query = getQuery(event);
    const page = normalizePositiveInt(query.page, DEFAULT_PAGE);
    const pageSize = Math.min(
      normalizePositiveInt(query.size, DEFAULT_PAGE_SIZE),
      MAX_PAGE_SIZE
    );

    logger.info("查询参数", {
      userId,
      page,
      pageSize
    });

    const result = await listImageGenerationHistory({
      userId,
      page,
      pageSize
    });

    logger.done("成功", {
      userId,
      page,
      pageSize,
      total: result.total,
      itemCount: result.items.length
    });

    return createSuccessResponse<IImageHistoryListData>(
      result,
      "获取生图历史成功"
    );
  } catch (error) {
    if (isUnauthorizedError(error)) {
      clearNewApiAuthCookies(event);
      logger.warn("未登录或登录态失效", {
        error: toSafeLogError(error)
      });
      return createErrorResponse(401, "未登录");
    }

    logger.error("失败", {
      error: toSafeLogError(error)
    });
    return createUpstreamErrorResponse(error, "获取生图历史失败");
  }
});

const normalizePositiveInt = (
  value: unknown,
  fallbackValue: number
): number => {
  const rawValue = Array.isArray(value) ? value[0] : value;
  const numberValue = Number.parseInt(String(rawValue ?? ""), 10);

  return Number.isInteger(numberValue) && numberValue > 0
    ? numberValue
    : fallbackValue;
};