package handlers_test

import (
	"bytes"
	"context"
	"net/http"
	"net/http/httptest"
	"otaupdate/handlers"
	"otaupdate/services"
	"testing"

	"github.com/fiskerinc/cloud-services/pkg/clickhouse"
	"github.com/julienschmidt/httprouter"
	"github.com/stretchr/testify/assert"
)

var chExpectedResult = []handlers.ChGpsRow{
	{"1G1FP87S1GN000445", 33.901499, -118.379155},
	{"1G1FP87S1GN000445", 33.101599, -118.189155},
	{"1G1FP87S1GN000446", 50.231084, 11.344868},
	{"1G1FP87S1GN000446", 50.141084, 11.145868},
}

var expectedPathBody string = "" +
	"{" +
	`"1G1FP87S1GN000445":[[33.901499,-118.379155],[33.101599,-118.189155]],` +
	`"1G1FP87S1GN000446":[[50.231084,11.344868],[50.141084,11.145868]]` +
	"}"

func TestHandleVehiclePathPost(t *testing.T) {
	validQuery := "?lookback_hours=24"
	validBody := "{\"vins\":[\"1G1FP87S1GN000445\", \"1G1FP87S1GN000446\"]}"
	validVins := `["1G1FP87S1GN000445","1G1FP87S1GN000446"]`
	tests := map[string]struct {
		q         string
		b         string
		conn      clickhouse.ConnInterface
		expStatus int
		expBody   string
	}{
		"correct": {
			q:         validQuery,
			b:         validBody,
			conn:      &clickhouse.MockConn{ExpectedResult: chExpectedResult},
			expStatus: http.StatusOK,
			expBody:   expectedPathBody,
		},
		"missing_vins": {
			q:         "",
			b:         "",
			expStatus: http.StatusBadRequest,
			expBody:   `{"message":"VINs required","error":"Bad Request"}`,
		},
	}

	for tname, tt := range tests {
		t.Run(tname, func(t *testing.T) {
			services.SetClickhouseConn(tt.conn)
			w := httptest.NewRecorder()

			p := httprouter.Params{
				{Key: "vins", Value: validVins},
			}
			ctx := context.WithValue(context.Background(), httprouter.ParamsKey, p)

			reader := bytes.NewReader([]byte(tt.b))

			r := httptest.NewRequest(http.MethodGet, "http://example.com/ota_update/vehicle_paths"+tt.q, reader).
				WithContext(ctx)

			handlers.HandleVehiclePathsPost(w, r)
			assert.Equal(t, tt.expStatus, w.Code)
			assert.Equal(t, tt.expBody, w.Body.String())
		})
	}
}