import {hooks} from "~/services/dataPersister/hook/_import";
import {AnyJson, DataPersisterArgs, DataProviderArgs} from "~/types/interfaces";
import {Context} from "@nuxt/types/app";
import Connection from "~/services/connection/connection";
import ConstructUrl from "~/services/connection/constructUrl";
import {HTTP_METHOD, QUERY_TYPE} from "~/types/enums";
import Serializer from "~/services/serializer/serializer";
import ApiError from "~/services/utils/apiError";
import DataProvider from "~/services/dataProvider/dataProvider";

class DataPersister{
  private ctx !: Context
  private arguments: DataPersisterArgs

  constructor() {
    this.sort()
    this.arguments = {
      type: QUERY_TYPE.MODEL,
      progress:true
    }
  }

  initCtx(ctx:Context){
    Connection.initConnector(ctx.$axios)
    this.ctx = ctx
  }

  setArguments(args: DataProviderArgs){
    this.arguments = { ...this.arguments, ...args }
  }

  async invoke(args:DataPersisterArgs): Promise<any>{
    try{
      this.setArguments(args)

      this.startLoading()

      this.preHook()

      this.arguments.data = this.serialization()

      const url = this.constructUrl()

      const response = await this.connection(url)

      this.provideResponse(response)
    }catch(error){
     throw new ApiError(error.response.status, error.response.data.detail)
    }
  }

  startLoading(){
    if(this.arguments.progress){
      const $nuxt = window['$nuxt']
      $nuxt.$loading.start()
    }
  }

  async preHook(){
    for(const hook of hooks){
      if(hook.support(this.arguments)){
        await new hook().invoke(this.arguments)
      }
    }
  }

  serialization(){
    const serializer = new Serializer()
    return serializer.normalize(this.arguments)
  }

  constructUrl(): string{
    const constructUrl = new ConstructUrl()
    return constructUrl.invoke(this.arguments)
  }

  connection(url: string): Promise<any>{
    const connection = new Connection()
    return connection.invoke(this.arguments.id ? HTTP_METHOD.PUT : HTTP_METHOD.POST, url, this.arguments)
  }

  async provideResponse(response: AnyJson){
    const dataProvider = new DataProvider()
    dataProvider.setArguments({
      type: this.arguments.type,
      url: this.arguments.url,
      enumType: this.arguments.enumType,
      model: this.arguments.model,
      root_model: this.arguments.root_model,
      id: this.arguments.id,
      root_id: this.arguments.root_id
    })
    const deserializeResponse = dataProvider.deserialization(response)
    return await dataProvider.provide(deserializeResponse)
  }

  sort(){
    hooks.sort(function(a, b) {
      if (a.priority > b.priority) {
        return 1
      }
      if (a.priority < b.priority) {
        return -1
      }
      return 0
    });
  }
}

export default DataPersister