// server/utils/promptPresets.ts - 预设提示词数据库查询：为前端提供可分页展示的预设列表。
import type {
  IPromptPresetItem,
  IPromptPresetListData
} from "#shared/types/openai";
import { prisma } from "~~/server/utils/prisma";

export const listPromptPresets = async ({
  page,
  pageSize
}: {
  page: number;
  pageSize: number;
}): Promise<IPromptPresetListData> => {
  const where = {
    enabled: true
  };

  const [total, records] = await Promise.all([
    prisma.promptPreset.count({ where }),
    prisma.promptPreset.findMany({
      where,
      orderBy: [
        {
          sortOrder: "asc"
        },
        {
          id: "asc"
        }
      ],
      skip: (page - 1) * pageSize,
      take: pageSize
    })
  ]);

  return {
    page,
    pageSize,
    total,
    items: records.map(mapPromptPresetItem)
  };
};

const mapPromptPresetItem = (record: {
  id: bigint;
  sourceId: string;
  name: string;
  promptRaw: string;
  prompt: string;
  negativePrompt: string;
  category: string;
  tags: unknown;
  aspectRatio: string;
  previewUrl: string;
  compressedPreviewUrl: string;
  sortOrder: number;
}): IPromptPresetItem => {
  return {
    id: record.id.toString(),
    sourceId: record.sourceId,
    name: record.name,
    promptRaw: record.promptRaw,
    prompt: record.prompt,
    negativePrompt: record.negativePrompt,
    category: record.category,
    tags: Array.isArray(record.tags)
      ? record.tags.filter((tag): tag is string => typeof tag === "string")
      : [],
    aspectRatio: record.aspectRatio,
    previewUrl: record.previewUrl,
    compressedPreviewUrl: record.compressedPreviewUrl,
    sortOrder: record.sortOrder
  };
};