const mongoose = require('mongoose')
const timestamp = require('mongoose-timestamp')

/**
 * A saved "find a partner" search — kept active indefinitely (per product
 * decision) so the searcher keeps getting notified on every new matching
 * user, not just once. `notified_user_ids` dedupes so the same matched user
 * doesn't trigger a repeat notification for the same alert.
 */
const partnerSearchAlertSchema = new mongoose.Schema({
  user_id: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'User',
    required: true,
    index: true
  },
  criteria: {
    type: mongoose.Schema.Types.Mixed,
    required: true
  },
  notified_user_ids: {
    type: [mongoose.Schema.Types.ObjectId],
    default: []
  },
  active: {
    type: Boolean,
    default: true,
    index: true
  }
})

partnerSearchAlertSchema.plugin(timestamp)

const PartnerSearchAlertModel = mongoose.model('PartnerSearchAlert', partnerSearchAlertSchema)
module.exports = PartnerSearchAlertModel