import type { HttpClient } from '@services'
import { http } from '../http/client'
import { type HttpClientType, omyHttp } from '../httpExternal/omyClient'
import type {
  MapboxApiError,
  MapboxGeocodingResponse,
  MapboxSearchOptions,
} from './types'

export class GeoCoding {
  private http = {} as HttpClient

  constructor(
    private provider: {
      apiUrl: string
      apiKey: string
      httpClientType: HttpClientType
    },
  ) {
    this.http = this.setHttp(this.provider.httpClientType)
  }

  private setHttp(httpClientType: HttpClientType) {
    const api = { name: 'mapbox', url: this.provider.apiUrl } as const

    return httpClientType === 'axios'
      ? http({ api, unserialized: true })
      : omyHttp({ api })
  }

  /** Get place(s) based on a string query */
  async forwardSearch(q: string, options: Partial<MapboxSearchOptions> = {}) {
    const safeOptions = Object.fromEntries(
      Object.entries(options)
        .filter(([_, val]) => typeof val !== 'undefined')
        .map(([key, val]) => [key, val.toString()]),
    )
    const query = new URLSearchParams({
      access_token: this.provider.apiKey,
      autocomplete: 'true',
      limit: '4',
      q,
      types: 'country,region,places',
      ...safeOptions,
    }).toString()

    const response = await this.http.get<
      MapboxGeocodingResponse & { errors?: MapboxApiError }
    >(`search/geocode/v6/forward?${query}`)

    if (response.errors) {
      throw response.errors
    }

    return response.features ?? []
  }
}