import { InitParameters, SendEventParameters } from './types'

const generateError = (message: string) => `Relay SDK: ${message}`
const SDK = class {
  fetch: typeof window.fetch
  apiURL = 'https://relay-plantkit.vercel.app/api/'
  apiKey = ''
  id = ''

  constructor(_fetch: any, id: string) {
    if (_fetch) {
      this.fetch = _fetch
    }
    this.id = id
    if (!this.fetch && typeof fetch === 'undefined') {
      console.error('Fetch function is undefined')
    }
    if (!this.id) {
      console.error('ID is undefined')
    }
  }

  init = (data: InitParameters) => {
    if (data.fetch) {
      this.fetch = data.fetch
    }
    if (data.apiURL) {
      this.apiURL = data.apiURL
      if (!this.apiURL.endsWith('/')) {
        this.apiURL += '/'
      }
    }
    if (data.apiKey) {
      this.apiKey = data.apiKey
    }
  }
  sendEvent = async (
    data: {
      //Common properties that will be filterable
      event?: string
      rating?: number
      sessionId?: string
      sku?: string
      total?: number
      userId?: string
      isTest?: boolean
      //Additional generic properties that are indexed
      propertyNumber1?: number
      propertyNumber2?: number
      propertyNumber3?: number
      lat?: number
      lng?: number
      propertyString1?: string
      source?: string
      propertyString2?: string
      propertyString3?: string
    } & Record<string, any>,
    params?: Omit<InitParameters, 'apiKey'> & {
      tags?: string[]
      apiKey?: string
    },
  ) => {
    const { tags, ...rest } = params
    if (rest?.apiKey) {
      this.init({ ...rest, apiKey: rest.apiKey })
    }
    this._validateSendEvent(data)
    const body = JSON.stringify({
      data,
      tags: (tags || []).concat([this.id]),
    })
    return (this.fetch || fetch)(`${this.apiURL}submissions/`, {
      body,
      headers: {
        'Content-Type': 'application/json',
        'X-API-Key': this.apiKey,
      },
      method: 'POST',
    }).then((res) => res.json())
  }

  _validateSendEvent(data: SendEventParameters) {
    if (!data) {
      throw new Error(generateError('Attempting to send null data'))
    }
    if (!this.apiKey) {
      throw new Error(
        generateError(
          'Attempting to send data with no API key, make sure you set it in sendEvent or init',
        ),
      )
    }
    if (!this.fetch && typeof fetch === 'undefined') {
      throw new Error(
        generateError(
          'Attempting to send data with no API key, make sure you set it in sendEvent or init',
        ),
      )
    }
  }
}
export default function getSDKInstance(fetch: any, id: string) {
  return new SDK(fetch, id)
}