import mongoose from 'mongoose'

const boardPostSchema = new mongoose.Schema({
  author: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'Member',
    required: true,
  },
  title: { type: String, required: true, maxlength: 120 },
  seeking: { type: String, maxlength: 500 },
  offering: { type: String, maxlength: 500 },
  note: { type: String, maxlength: 300 },
  tags: [String],
}, { timestamps: true })

boardPostSchema.pre('validate', function (next) {
  const seeking = (this.seeking || '').trim()
  const offering = (this.offering || '').trim()
  if (!seeking && !offering) {
    this.invalidate('seeking', 'At least one of seeking or offering must be provided')
  }
  next()
})

boardPostSchema.index({ author: 1 })
boardPostSchema.index({ createdAt: -1 })

export default mongoose.models.BoardPost || mongoose.model('BoardPost', boardPostSchema)