package handlers_test

import (
	"net/http"
	"otaupdate/handlers"
	"otaupdate/services"
	"testing"

	"github.com/fiskerinc/cloud-services/pkg/common"
	"github.com/fiskerinc/cloud-services/pkg/common/carupdatestatus"
	mo "github.com/fiskerinc/cloud-services/pkg/db/queries/mocks"
	"github.com/fiskerinc/cloud-services/pkg/httpclient/tester"
	"github.com/fiskerinc/cloud-services/pkg/redis"
	rm "github.com/fiskerinc/cloud-services/pkg/redis/tester"
	"github.com/fiskerinc/cloud-services/pkg/testhelper"
	"github.com/fiskerinc/cloud-services/pkg/testrunner"

	"github.com/go-pg/pg/v10"
)

func TestCarUpdateDeploy(t *testing.T) {
	redis.MockRedisConnection()
	mockRedis := rm.MockRedis{
		GetSetResults: "[]",
	}
	services.SetRedisClientPool(rm.NewMockClientPool(&mockRedis))
	mock := mo.MockCarUpdates{}
	services.GetDB().SetCarUpdates(&mock)

	vin := "1G1FP87S3GN100062"
	mockCarUpdate := common.CarUpdate{
		ID:               1000,
		VIN:              vin,
		UpdateManifestID: 10,
		Status:           carupdatestatus.ManifestSucceeded,
	}
	trexKey := common.TRex.Key(vin)
	hmiKey := common.HMI.Key(vin)
	tests := []testrunner.TestCase{
		{
			Name: "invalid update id",
			HttpTestCase: &tester.HttpTestCase{
				Request:          testhelper.MakeTestRequest(http.MethodPost, "http://example.com/carupdate/1000/deploy", nil),
				ExpectedStatus:   http.StatusNotFound,
				ExpectedResponse: `{"message":"pg: no rows in result set","error":"Not Found"}`,
			},
			DBTestCase: &mo.DBTestCase{
				MockError: pg.ErrNoRows,
			},
			RedisTestCase: &rm.RedisTestCase{},
		},
		{
			Name: "non-numeric update id",
			HttpTestCase: &tester.HttpTestCase{
				Request:          testhelper.MakeTestRequest(http.MethodPost, "http://example.com/carupdate/xxxx/deploy", nil),
				ExpectedStatus:   http.StatusBadRequest,
				ExpectedResponse: `{"message":"strconv.ParseInt: parsing \"xxxx\": invalid syntax","error":"Bad Request"}`,
			},
			DBTestCase:    &mo.DBTestCase{},
			RedisTestCase: &rm.RedisTestCase{},
		},
		{
			Name: "database error",
			HttpTestCase: &tester.HttpTestCase{
				Request:          testhelper.MakeTestRequest(http.MethodPost, "http://example.com/carupdate/1000/deploy", nil),
				ExpectedStatus:   http.StatusServiceUnavailable,
				ExpectedResponse: `{"message":"some err","error":"Service Unavailable"}`,
			},
			DBTestCase: &mo.DBTestCase{
				MockError: someErr,
			},
		},
		{
			Name: "redis error",
			HttpTestCase: &tester.HttpTestCase{
				Request:          testhelper.MakeTestRequest(http.MethodPost, "http://example.com/carupdate/1000/deploy", nil),
				ExpectedStatus:   http.StatusServiceUnavailable,
				ExpectedResponse: `{"message":"some err","error":"Service Unavailable"}`,
			},
			DBTestCase: &mo.DBTestCase{
				MockLoadResponse: &mockCarUpdate,
			},
			RedisTestCase: &rm.RedisTestCase{
				MockRedisError: someErr,
			},
		},
		{
			Name: "invalid status",
			HttpTestCase: &tester.HttpTestCase{
				Request:          testhelper.MakeTestRequest(http.MethodPost, "http://example.com/carupdate/1000/deploy", nil),
				ExpectedStatus:   http.StatusUnprocessableEntity,
				ExpectedResponse: `{"message":"Unable to redeploy, CarUpdate is currently pending"}`,
			},
			DBTestCase: &mo.DBTestCase{
				MockLoadResponse: &common.CarUpdate{
					ID:               1000,
					VIN:              vin,
					UpdateManifestID: 10,
					Status:           carupdatestatus.Pending,
				},
			},
		},
		{
			Name: "good request",
			HttpTestCase: &tester.HttpTestCase{
				Request:          testhelper.MakeTestRequest(http.MethodPost, "http://example.com/carupdate/1000/deploy", nil),
				ExpectedStatus:   http.StatusOK,
				ExpectedResponse: `{"message":"OK"}`,
			},
			DBTestCase: &mo.DBTestCase{
				MockLoadResponse: &mockCarUpdate,
			},
			RedisTestCase: &rm.RedisTestCase{
				ExpectedMessages: map[string]string{
					trexKey: `{"handler":"update_manifest_install","data":{"car_update_id":1000}}`,
					hmiKey:  `{"handler":"update_manifest_install","data":{"car_update_id":1000}}`,
				},
				ExpectedCaches: map[string]rm.ExpiringCacheResult{
					redis.CarUpdateStatusHashKey(int64(1000)): {
						Value:   `{"current_size":0,"ecu":"","errorcode":0,"file_size":0,"file_total":0,"id":1000,"installed":0,"status":"pending","total_files":0,"total_size":0}`,
						Expires: 3600,
					},
				},
			},
		},
	}

	schemaTesterTRex := testhelper.NewSchemaTestHelper(t, schemaToTRex)
	for _, test := range tests {
		mockRedis.Reset()

		if test.RedisTestCase != nil {
			test.RedisTestCase.SetupRedis(&mockRedis)
		}

		if test.DBTestCase != nil {
			test.DBTestCase.SetupDB(&mock)
		}

		if test.HttpTestCase != nil {
			w := test.HttpTestCase.TestWithParamPath(handlers.HandleCarUpdateDeploy, "/carupdate/:id/deploy")
			test.HttpTestCase.ValidateHttp(t, test.Name, w)
		}

		if test.DBTestCase != nil {
			test.DBTestCase.Validate(t, test.Name, &mock)
		}
		if test.RedisTestCase != nil {
			test.RedisTestCase.Validate(t, test.Name, &mockRedis)

			for _, mes := range test.RedisTestCase.ExpectedMessages {
				schemaTesterTRex.ValidateSchemaObject(test.Name, []byte(mes))
			}
		}
	}
}