WIP: error in parsing

gen/openapiv2/proto/satellite/v1/satellite.swagger.json

@@ -60,6 +60,13 @@
             "required": false,
             "type": "number",
             "format": "double"
+          },
+          {
+            "name": "velocity",
+            "in": "query",
+            "required": false,
+            "type": "number",
+            "format": "double"
           }
         ],
         "tags": [
@@ -157,6 +164,10 @@
         "altitude": {
           "type": "number",
           "format": "double"
+        },
+        "velocity": {
+          "type": "number",
+          "format": "double"
         }
       }
     },

go.mod

@@ -13,9 +13,11 @@ require (
 require (
 	github.com/go-resty/resty/v2 v2.13.1
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0
+	github.com/joshuaferrara/go-satellite v0.0.0-20220611180459-512638c64e5b
 )
 
 require (
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/stretchr/testify v1.8.4 // indirect
 	golang.org/x/net v0.25.0 // indirect
 	golang.org/x/sys v0.20.0 // indirect

go.sum

@@ -9,6 +9,14 @@ github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 h1:bkypFPDjIYGfCYD5mRBvpqxfYX1
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0/go.mod h1:P+Lt/0by1T8bfcF3z737NnSbmxQAppXMRziHUxPOC8k=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/joshuaferrara/go-satellite v0.0.0-20220611180459-512638c64e5b h1:JlltDRgni6FuoFwluvoZCrE6cmpojccO4WsqeYlFJLE=
+github.com/joshuaferrara/go-satellite v0.0.0-20220611180459-512638c64e5b/go.mod h1:msW2QeN9IsnRyvuK8OBAzBwn6DHwXpiAiqBk8dbLfrU=
+github.com/onsi/ginkgo v1.2.1-0.20160509182050-5437a97bf824 h1:MbMqwlWoESqhGm4Sslfdyeq7Ww8R9ppeKS5DcO3xDI0=
+github.com/onsi/ginkgo v1.2.1-0.20160509182050-5437a97bf824/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
+github.com/onsi/gomega v0.0.0-20160516222431-c73e51675ad2 h1:38zSYUaJJkzreBjLz7tx4AUTVjnFI7EQBnlRoWt4QFA=
+github.com/onsi/gomega v0.0.0-20160516222431-c73e51675ad2/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
@@ -76,6 +84,8 @@ google.golang.org/grpc v1.64.0/go.mod h1:oxjF8E3FBnjp+/gVFYdWacaLDx9na1aqy9oovLp
 google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
 google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.0.0-20160301204022-a83829b6f129 h1:RBgb9aPUbZ9nu66ecQNIBNsA7j3mB5h8PNDIfhPjaJg=
+gopkg.in/yaml.v2 v2.0.0-20160301204022-a83829b6f129/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

proto/satellite/v1/satellite.proto

@@ -10,6 +10,7 @@ message Satellite {
   double lat = 2;
   double lon = 3;
   double altitude = 4;
+  double velocity = 5;
 }
 
 

service/satelliteservice.go

@@ -3,13 +3,16 @@ package service
 import (
 	"context"
 	"github.com/go-resty/resty/v2"
+	"github.com/joshuaferrara/go-satellite"
 	log "github.com/sirupsen/logrus"
 	"github.com/tsukoyachi/react-flight-tracker-satellite/gen/go/proto/satellite/v1"
 	"github.com/tsukoyachi/react-flight-tracker-satellite/spacetrack"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 	_ "google.golang.org/protobuf/types/known/emptypb"
+	"google.golang.org/protobuf/types/known/timestamppb"
 	"os"
+	"time"
 )
 
 type SatelliteService struct {
@@ -106,16 +109,39 @@ func (api SatelliteService) GetSatelliteDetail(ctx context.Context, req *v1.Sate
 }
 
 func (api SatelliteService) GetSatellitePositions(ctx context.Context, req *v1.GetSatellitePositionsRequest) (*v1.GetSatellitePositionsResponse, error) {
-	// print("GetSatellitePositions")
-	log.Info(req.GetTime())
+	calculatedPositions := make([]*v1.Satellite, 0)
+	reqTime := req.GetTime()
+	if reqTime == nil {
+		reqTime = &timestamppb.Timestamp{
+			Seconds: time.Now().Unix(),
+			Nanos:   0,
+		}
+	}
+	// iterate over api.data
+	for id, data := range api.data {
+		log.Info("Calculating position for satellite", id)
+		log.Info(data.TLE_LINE1, data.TLE_LINE2)
+		goSat := satellite.TLEToSat(data.TLE_LINE1, data.TLE_LINE2, satellite.GravityWGS84)
+		// propagate the satellite position
+		t := time.Unix(reqTime.Seconds, int64(reqTime.Nanos))
+
+		log.Info(goSat.ErrorStr, goSat.Error)
+		log.Info(t)
+		pos, vec := satellite.Propagate(goSat, t.Year(), int(t.Month()), t.Day(), t.Hour(), t.Minute(), t.Second())
+		log.Info(pos, vec)
+		gst := satellite.GSTimeFromDate(t.Year(), int(t.Month()), t.Day(), t.Hour(), t.Minute(), t.Second())
+
+		// convert Earth Centered Inertial coordinates to Lat/Long
+		altitude, velocity, ret := satellite.ECIToLLA(pos, gst)
+		calculatedPositions = append(calculatedPositions, &v1.Satellite{
+			Id:       id,
+			Lat:      ret.Latitude,
+			Lon:      ret.Longitude,
+			Altitude: altitude,
+			Velocity: velocity,
+		})
+	}
 	return &v1.GetSatellitePositionsResponse{
-		Satellites: []*v1.Satellite{
-			{
-				Id:       "1",
-				Lat:      0,
-				Lon:      0,
-				Altitude: float64(req.GetTime().GetSeconds()),
-			},
-		},
+		Satellites: calculatedPositions,
 	}, nil
 }