package crawlers

import (
	"context"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"

	"github.com/dgraph-io/dgo/v2"
	"github.com/dgraph-io/dgo/v2/protos/api"
)

// GetDriversFromErgast gets the driver data from the API.
func GetDriversFromErgast(year string, client *dgo.Dgraph) {
	resp, err := http.Get("http://ergast.com/api/f1/" + year + "/drivers.json")
	if err != nil {
		panic(err.Error())
	}

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		panic(err.Error())
	}
	defer resp.Body.Close()

	var jsonData MRDriverData
	err = json.Unmarshal(body, &jsonData)
	if err != nil {
		panic(err.Error())
	}

	drivers := jsonData.MRData.DriverTable.Drivers

	for _, driver := range drivers {
		ctx := context.Background()
		model := Driver{
			GivenName:   driver.GivenName,
			FamilyName:  driver.FamilyName,
			Nationality: driver.Nationality,
			DateOfBirth: driver.DateOfBirth,
		}

		GetResultsFromErgast(year, driver.FamilyName, client)

		pb, err := json.Marshal(model)
		if err != nil {
			log.Fatal(err)
		}
		mu := &api.Mutation{
			SetJson: pb,
			Cond:    `@if(eq(len(driver), 0))`,
		}

		if driver.FamilyName == "Pérez" {
			driver.FamilyName = "Perez"
		}

		if driver.FamilyName == "Räikkönen" {
			driver.FamilyName = "Raikkonen"
		}

		query := fmt.Sprintf(`query {
driver as var(func: eq(familyName, %s))
		}`, driver.FamilyName)

		req := &api.Request{
			Query:     query,
			Mutations: []*api.Mutation{mu},
			CommitNow: true,
		}

		data, err := client.NewTxn().Do(ctx, req)
		if err != nil {
			log.Fatal(err)
		}
		log.Print(data)
	}

}

// {
//   "MRData": {
//     "xmlns": "http://ergast.com/mrd/1.4",
//     "series": "f1",
//     "url": "http://ergast.com/api/f1/drivers.json",
//     "limit": "30",
//     "offset": "0",
//     "total": "847",
//     "DriverTable": {
//       "Drivers": [
//         {
//           "driverId": "abate",
//           "url": "http://en.wikipedia.org/wiki/Carlo_Mario_Abate",
//           "givenName": "Carlo",
//           "familyName": "Abate",
//           "dateOfBirth": "1932-07-10",
//           "nationality": "Italian"
//         },