import mongoose from 'mongoose'

const seriesSchema = new mongoose.Schema({
  id: { 
    type: String, 
    required: true, 
    unique: true,
    validate: {
      validator: function(v) {
        return /^[a-z0-9-]+$/.test(v);
      },
      message: 'Series ID must contain only lowercase letters, numbers, and dashes'
    }
  },
  title: { type: String, required: true },
  description: { type: String, required: true },
  type: {
    type: String,
    enum: ['workshop_series', 'recurring_meetup', 'multi_day', 'course', 'tournament'],
    default: 'workshop_series'
  },
  totalEvents: Number,
  isActive: { type: Boolean, default: true },
  createdBy: { type: String, required: true },
  createdAt: { type: Date, default: Date.now },
  updatedAt: { type: Date, default: Date.now }
})

// Update the updatedAt field on save
seriesSchema.pre('save', function(next) {
  this.updatedAt = new Date()
  next()
})

export default mongoose.models.Series || mongoose.model('Series', seriesSchema)