import StoreWithMetadata from './StoreWithMetadata'


export default new class StoreManager {
  private stores = new Map<any, StoreWithMetadata>()

  getStoreAndMetadataFor(storeSourceClass: any): StoreWithMetadata {
    let storeWithMetadata = this.stores.get(storeSourceClass)
    if (storeWithMetadata !== undefined) {
      return storeWithMetadata
    }

    storeWithMetadata = new StoreWithMetadata(new storeSourceClass)
    this.stores.set(storeSourceClass, storeWithMetadata)
    return storeWithMetadata
  }

  get state(): {[storeSourceClass: string]: any} {
    const state: {[storeSourceClass: string]: any} = {}

    for (const storeSourceClass of this.stores.keys()) {
      state[storeSourceClass.name] = this.stores.get(storeSourceClass)!.state
    }

    return state
  }
}