import type { VueConsAny } from '../class'
import type { OptionBuilder } from '../optionBuilder'
import { filterNames, getValidOwnPropertyNames } from '../utils'
import { obtainSlot } from '../slot'
export function build(cons: VueConsAny, optionBuilder: OptionBuilder) {
    optionBuilder.data ??= {}
    const sample = new cons()
    let names = getValidOwnPropertyNames(sample, (des, name) => {
        return !!des.enumerable
            && !optionBuilder.methods?.[name]
            && !optionBuilder.props?.[name]
    })
    const slot = obtainSlot(cons.prototype)
    //include these names:
    //provide, user may access field directly
    //customDecorator
    names = filterNames(names, slot, ['provide', 'customDecorator'])
    Object.assign(optionBuilder.data,
        names.reduce<Record<string, any>>((pv, cv) => {
            pv[cv] = sample[cv]
            return pv
        }, {})
    )
}