import JSONObject from '../instances/JSONObject'

export default class JSONArray {
  innerList: Array<any>

  constructor(value?: any) {
    if (value && typeof value === 'string') {
      this.innerList = JSON.parse(value).map((item: any) => this.wrapValue(item))
    }
    else if (value && Array.isArray(value)) {
      this.innerList = value.map((item: any) => this.wrapValue(item))
    }
    else {
      this.innerList = new Array<any>()
    }
  }

  private wrapValue(value: any): any {
    if (Array.isArray(value)) {
      return new JSONArray(value)
    }
    else if (value && JSONObject.isPlainObject(value)) {
      return new JSONObject(value)
    }
    return value
  }

  public length(): number {
    return this.innerList.length
  }

  public put(item: any) {
    this.innerList.push(this.wrapValue(item))
  }

  public get(index: number): any {
    return this.innerList[index]
  }

  public toString(): string {
    const replacer = (key: string, value: any): any => {
      if (value instanceof JSONObject) {
        return value.innerMap
      }
      else if (value instanceof JSONArray) {
        return value.innerList
      }
      return value
    }
    return JSON.stringify(this.innerList, replacer)
  }
}