import * as _ from 'lodash'
import Notifier from './Notifier'
import {checkOrder} from './StoreMemberGenerators'

export default class StoreWithMetadata {
  public store: {[field: string]: any} = {}
  public actionCallDepth: number = 0
  public notifier = new Notifier
  
  constructor(storeSource: any) {
    const methodNames = Object.getOwnPropertyNames(Object.getPrototypeOf(storeSource))
    const builtInMethodNames = Object.getOwnPropertyNames(Object.getPrototypeOf({}))
    const fieldNames = Object.keys(storeSource)
    const storeMemberNames = _.difference(methodNames, builtInMethodNames).concat(fieldNames)

    for (const storeMemberName of storeMemberNames) {
      for (const storeMemberGeneratorClass of checkOrder) {
        const storeMemberGenerator = new storeMemberGeneratorClass(storeSource, storeMemberName)

        if (storeMemberGenerator.isMatched()) {
          storeMemberGenerator.run()
          this.store = storeSource
          break
        }
      }
    }
  }
  
  get state(): {[field: string]: any} {
    const state: {[field: string]: any} = {}

    for (const stateFieldName of Object.keys(this.store)) {
      if (!(this.store[stateFieldName] instanceof Function)) {
        state[stateFieldName] = this.store[stateFieldName]
      }
    }

    return state
  }
}