import { defineEventHandler, getQuery, getRouterParam, createError } from 'h3'
import { prisma } from '../../lib/prisma'
import { BaseCrudService } from '../../lib/crud-service'
import { createCrudHandlers } from '../../lib/crud-handler'
import { Prisma } from '@prisma/client'

export default defineEventHandler(async event => {
  const table = getRouterParam(event, 'table')?.toLowerCase()

  if (!table) {
    throw createError({
      statusCode: 400,
      statusMessage: 'Table name is required',
    })
  }

  // 将表名转换为 PascalCase 模型名（首字母大写，复数转单数）
  let modelName = table
  // 简单的复数转单数逻辑（去掉结尾的s）
  if (modelName.endsWith('s')) {
    modelName = modelName.slice(0, -1)
  }
  modelName = modelName.charAt(0).toUpperCase() + modelName.slice(1)

  // 验证表名是否存在于 Prisma 模型中
  if (!prisma[modelName as keyof typeof prisma]) {
    throw createError({
      statusCode: 404,
      statusMessage: 'Table not found or not supported',
    })
  }

  // 直接实例化 BaseCrudService，传入动态表名
  const service = new BaseCrudService(prisma, modelName as Prisma.ModelName, {
    searchableFields: [],
    defaultOrderBy: 'createdAt',
    defaultOrderDirection: 'desc',
  })

  const { list } = createCrudHandlers(service)
  return await list(event)
})