const mongoose = require('mongoose')
const ObjectID = mongoose.Schema.Types.ObjectId

const featureSchema = new mongoose.Schema({
    nativeName: {
        type: String,
        required: true,
    },
    englishName: {
        type: String,
        required: true,
    },
    category: {
        type: ObjectID,
        ref: 'Category',
        required: true,
    },
    predefinedValues: [String],
    unit: String,
    isFilterable: {
        type: Boolean,
        default: true,
    },
    featureType: {
        type: String,
        enum: ['string', 'boolean', 'number', 'date'],
        default: 'string',
    },
    filterType: {
        type: String,
        enum: ['exact', 'range', 'multi', 'bool'],
        default: 'exact',
    },
    tag: String,
    priority: Number,
},    {
    toJSON: { virtuals: true },
    toObject: { virtuals: true },
    timestamps: true,
})

featureSchema.index({ englishName: 1, category: 1 }, { unique: true })

const Feature = mongoose.model('Feature', featureSchema)

module.exports = Feature