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feat: cleanup

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Anatoly Antonov 2026-03-28 00:38:16 +09:00
parent 8e9f117799
commit 82ef1cb3b8
66 changed files with 0 additions and 9521 deletions
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12
internal/service/deps.go
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@ -1,12 +0,0 @@
package service
import (
"context"
"time"
)
type Grib interface {
Update(ctx context.Context) error
Extract(ctx context.Context, lat, lon, alt float64, ts time.Time) ([2]float64, error)
Close() error
}

684
internal/service/predictor.go
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@ -1,684 +0,0 @@
package service
import (
"context"
"encoding/base64"
"encoding/json"
"math"
"time"
"git.intra.yksa.space/gsn/predictor/internal/pkg/ds"
"git.intra.yksa.space/gsn/predictor/internal/pkg/errcodes"
"git.intra.yksa.space/gsn/predictor/internal/pkg/log"
"go.uber.org/zap"
)
var ErrInvalidParameters = errcodes.New(400, "missing required prediction parameters")
// Stage represents a prediction stage (ascent, descent, float)
type Stage struct {
Name string
Results []ds.PredicitonResult
StartTime time.Time
EndTime time.Time
}
// shouldSimulateStage checks if a given stage should be simulated based on the SimulateStages filter
func shouldSimulateStage(params ds.PredictionParameters, stage string) bool {
// If no filter is specified, simulate all stages
if len(params.SimulateStages) == 0 {
return true
}
// Check if the stage is in the filter list
for _, s := range params.SimulateStages {
if s == stage {
return true
}
}
return false
}
// CustomCurve represents a custom ascent/descent curve
type CustomCurve struct {
Altitude []float64 `json:"altitude"`
Time []float64 `json:"time"` // seconds from start
}
func (s *Service) PerformPrediction(ctx context.Context, params ds.PredictionParameters) ([]ds.PredicitonResult, error) {
// Validate required parameters
if params.LaunchLatitude == nil || params.LaunchLongitude == nil || params.LaunchAltitude == nil || params.LaunchDatetime == nil {
return nil, ErrInvalidParameters
}
// Get default values
profile := "standard_profile"
if params.Profile != nil {
profile = *params.Profile
}
ascentRate := 5.0
if params.AscentRate != nil {
ascentRate = *params.AscentRate
}
burstAltitude := 30000.0
if params.BurstAltitude != nil {
burstAltitude = *params.BurstAltitude
}
descentRate := 5.0
if params.DescentRate != nil {
descentRate = *params.DescentRate
}
floatAltitude := 0.0
if params.FloatAltitude != nil {
floatAltitude = *params.FloatAltitude
}
// Parse custom curves if provided
var ascentCurve, descentCurve *CustomCurve
if params.AscentCurve != nil && *params.AscentCurve != "" {
if curve, err := parseCustomCurve(*params.AscentCurve); err == nil {
ascentCurve = curve
}
}
if params.DescentCurve != nil && *params.DescentCurve != "" {
if curve, err := parseCustomCurve(*params.DescentCurve); err == nil {
descentCurve = curve
}
}
log.Ctx(ctx).Warn("🚀 PREDICTION STARTING",
zap.String("profile", profile),
zap.Float64("lat", *params.LaunchLatitude),
zap.Float64("lon", *params.LaunchLongitude),
zap.Float64("alt", *params.LaunchAltitude),
zap.Time("time", *params.LaunchDatetime),
)
var allResults []ds.PredicitonResult
switch profile {
case "standard_profile":
allResults = s.standardProfile(ctx, params, ascentRate, burstAltitude, descentRate, ascentCurve, descentCurve)
case "float_profile":
allResults = s.floatProfile(ctx, params, ascentRate, burstAltitude, floatAltitude, descentRate, ascentCurve, descentCurve)
case "reverse_profile":
allResults = s.reverseProfile(ctx, params, ascentRate, burstAltitude, descentRate, ascentCurve, descentCurve)
case "custom_profile":
allResults = s.customProfile(ctx, params, ascentCurve, descentCurve)
default:
return nil, errcodes.New(400, "unsupported profile: "+profile)
}
log.Ctx(ctx).Info("Prediction complete", zap.Int("total_steps", len(allResults)))
return allResults, nil
}
func (s *Service) standardProfile(ctx context.Context, params ds.PredictionParameters, ascentRate, burstAltitude, descentRate float64, ascentCurve, descentCurve *CustomCurve) []ds.PredicitonResult {
var results []ds.PredicitonResult
var lastResult ds.PredicitonResult
// Stage 1: Ascent
if shouldSimulateStage(params, "ascent") {
ascentResults := s.simulateAscent(ctx, params, ascentRate, burstAltitude, ascentCurve)
results = append(results, ascentResults...)
if len(ascentResults) > 0 {
lastResult = ascentResults[len(ascentResults)-1]
}
} else {
// If ascent is skipped, use initial position as starting point
lastResult = ds.PredicitonResult{
Latitude: params.LaunchLatitude,
Longitude: params.LaunchLongitude,
Altitude: &burstAltitude,
Timestamp: params.LaunchDatetime,
}
}
// Stage 2: Descent
if shouldSimulateStage(params, "descent") && lastResult.Latitude != nil {
descentParams := ds.PredictionParameters{
LaunchLatitude: lastResult.Latitude,
LaunchLongitude: lastResult.Longitude,
LaunchAltitude: lastResult.Altitude,
LaunchDatetime: lastResult.Timestamp,
}
descentResults := s.simulateDescent(ctx, descentParams, descentRate, 0, descentCurve)
results = append(results, descentResults...)
}
return results
}
func (s *Service) floatProfile(ctx context.Context, params ds.PredictionParameters, ascentRate, burstAltitude, floatAltitude, descentRate float64, ascentCurve, descentCurve *CustomCurve) []ds.PredicitonResult {
var results []ds.PredicitonResult
var lastResult ds.PredicitonResult
// Stage 1: Ascent to float altitude
if shouldSimulateStage(params, "ascent") {
ascentResults := s.simulateAscent(ctx, params, ascentRate, floatAltitude, ascentCurve)
results = append(results, ascentResults...)
if len(ascentResults) > 0 {
lastResult = ascentResults[len(ascentResults)-1]
}
} else {
// If ascent is skipped, use initial position at float altitude as starting point
lastResult = ds.PredicitonResult{
Latitude: params.LaunchLatitude,
Longitude: params.LaunchLongitude,
Altitude: &floatAltitude,
Timestamp: params.LaunchDatetime,
}
}
// Stage 2: Float (simulate for some time)
if shouldSimulateStage(params, "float") && lastResult.Latitude != nil {
floatResults := s.simulateFloat(ctx, lastResult, 30*time.Minute) // Float for 30 minutes
results = append(results, floatResults...)
if len(floatResults) > 0 {
lastResult = floatResults[len(floatResults)-1]
}
}
// Stage 3: Descent
if shouldSimulateStage(params, "descent") && lastResult.Latitude != nil {
descentParams := ds.PredictionParameters{
LaunchLatitude: lastResult.Latitude,
LaunchLongitude: lastResult.Longitude,
LaunchAltitude: lastResult.Altitude,
LaunchDatetime: lastResult.Timestamp,
}
descentResults := s.simulateDescent(ctx, descentParams, descentRate, 0, descentCurve)
results = append(results, descentResults...)
}
return results
}
func (s *Service) reverseProfile(ctx context.Context, params ds.PredictionParameters, ascentRate, burstAltitude, descentRate float64, ascentCurve, descentCurve *CustomCurve) []ds.PredicitonResult {
var results []ds.PredicitonResult
var lastResult ds.PredicitonResult
// Stage 1: Ascent
if shouldSimulateStage(params, "ascent") {
ascentResults := s.simulateAscent(ctx, params, ascentRate, burstAltitude, ascentCurve)
results = append(results, ascentResults...)
if len(ascentResults) > 0 {
lastResult = ascentResults[len(ascentResults)-1]
}
} else {
// If ascent is skipped, use initial position at burst altitude as starting point
lastResult = ds.PredicitonResult{
Latitude: params.LaunchLatitude,
Longitude: params.LaunchLongitude,
Altitude: &burstAltitude,
Timestamp: params.LaunchDatetime,
}
}
// Stage 2: Descent to float altitude
floatAlt := 0.0
if params.FloatAltitude != nil {
floatAlt = *params.FloatAltitude
}
if shouldSimulateStage(params, "descent") && lastResult.Latitude != nil {
descentParams := ds.PredictionParameters{
LaunchLatitude: lastResult.Latitude,
LaunchLongitude: lastResult.Longitude,
LaunchAltitude: lastResult.Altitude,
LaunchDatetime: lastResult.Timestamp,
}
descentResults := s.simulateDescent(ctx, descentParams, descentRate, floatAlt, descentCurve)
results = append(results, descentResults...)
if len(descentResults) > 0 {
lastResult = descentResults[len(descentResults)-1]
}
} else if floatAlt > 0 {
// If descent is skipped but we need to float, position at float altitude
lastResult = ds.PredicitonResult{
Latitude: lastResult.Latitude,
Longitude: lastResult.Longitude,
Altitude: &floatAlt,
Timestamp: lastResult.Timestamp,
}
}
// Stage 3: Float
if shouldSimulateStage(params, "float") && floatAlt > 0 && lastResult.Latitude != nil {
floatResults := s.simulateFloat(ctx, lastResult, 30*time.Minute)
results = append(results, floatResults...)
}
return results
}
func (s *Service) customProfile(ctx context.Context, params ds.PredictionParameters, ascentCurve, descentCurve *CustomCurve) []ds.PredicitonResult {
var results []ds.PredicitonResult
var lastResult ds.PredicitonResult
// Custom ascent
if shouldSimulateStage(params, "ascent") && ascentCurve != nil {
ascentResults := s.simulateCustomAscent(ctx, params, ascentCurve)
results = append(results, ascentResults...)
if len(ascentResults) > 0 {
lastResult = ascentResults[len(ascentResults)-1]
}
} else if len(results) == 0 {
// If ascent is skipped, use initial position
lastResult = ds.PredicitonResult{
Latitude: params.LaunchLatitude,
Longitude: params.LaunchLongitude,
Altitude: params.LaunchAltitude,
Timestamp: params.LaunchDatetime,
}
}
// Custom descent
if shouldSimulateStage(params, "descent") && descentCurve != nil && lastResult.Latitude != nil {
descentParams := ds.PredictionParameters{
LaunchLatitude: lastResult.Latitude,
LaunchLongitude: lastResult.Longitude,
LaunchAltitude: lastResult.Altitude,
LaunchDatetime: lastResult.Timestamp,
}
descentResults := s.simulateCustomDescent(ctx, descentParams, descentCurve)
results = append(results, descentResults...)
}
return results
}
func rk4Step(lat, lon, alt float64, t time.Time, dt float64, windFunc func(lat, lon, alt float64, t time.Time) (float64, float64), altRate float64) (float64, float64, float64) {
// Helper for RK4 integration step
toRad := math.Pi / 180.0
toDeg := 180.0 / math.Pi
R := func(alt float64) float64 { return 6371009.0 + alt }
f := func(lat, lon, alt float64, t time.Time) (float64, float64, float64) {
windU, windV := windFunc(lat, lon, alt, t)
Rnow := R(alt)
dlat := toDeg * windV / Rnow
dlon := toDeg * windU / (Rnow * math.Cos(lat*toRad))
return dlat, dlon, altRate
}
k1_lat, k1_lon, k1_alt := f(lat, lon, alt, t)
k2_lat, k2_lon, k2_alt := f(lat+0.5*k1_lat*dt, lon+0.5*k1_lon*dt, alt+0.5*k1_alt*dt, t.Add(time.Duration(0.5*dt)*time.Second))
k3_lat, k3_lon, k3_alt := f(lat+0.5*k2_lat*dt, lon+0.5*k2_lon*dt, alt+0.5*k2_alt*dt, t.Add(time.Duration(0.5*dt)*time.Second))
k4_lat, k4_lon, k4_alt := f(lat+k3_lat*dt, lon+k3_lon*dt, alt+k3_alt*dt, t.Add(time.Duration(dt)*time.Second))
latNew := lat + (dt/6.0)*(k1_lat+2*k2_lat+2*k3_lat+k4_lat)
lonNew := lon + (dt/6.0)*(k1_lon+2*k2_lon+2*k3_lon+k4_lon)
altNew := alt + (dt/6.0)*(k1_alt+2*k2_alt+2*k3_alt+k4_alt)
return latNew, lonNew, altNew
}
func (s *Service) simulateAscent(ctx context.Context, params ds.PredictionParameters, ascentRate, targetAltitude float64, customCurve *CustomCurve) []ds.PredicitonResult {
const dt = 10.0 // simulation step in seconds
const outputInterval = 60.0 // output every 60 seconds
log.Ctx(ctx).Warn("⬆️ ASCENT SIMULATION STARTING",
zap.Float64("ascentRate", ascentRate),
zap.Float64("targetAlt", targetAltitude))
lat := *params.LaunchLatitude
lon := *params.LaunchLongitude
alt := *params.LaunchAltitude
timeCur := *params.LaunchDatetime
results := make([]ds.PredicitonResult, 0, 1000)
latCopy := lat
lonCopy := lon
altCopy := alt
timeCopy := timeCur
wind := [2]float64{0, 0}
windU := wind[0]
windV := wind[1]
results = append(results, ds.PredicitonResult{
Latitude: &latCopy,
Longitude: &lonCopy,
Altitude: &altCopy,
Timestamp: &timeCopy,
WindU: &windU,
WindV: &windV,
})
nextOutputTime := timeCur.Add(time.Duration(outputInterval) * time.Second)
firstExtraction := true
windFunc := func(lat, lon, alt float64, t time.Time) (float64, float64) {
w, err := s.ExtractWind(ctx, lat, lon, alt, t)
if err != nil {
log.Ctx(ctx).Error("Wind extraction FAILED during ascent",
zap.Error(err),
zap.Float64("lat", lat),
zap.Float64("lon", lon),
zap.Float64("alt", alt),
zap.Time("time", t))
return 0, 0
}
// Log only first extraction and when wind is zero
if firstExtraction || (w[0] == 0 && w[1] == 0) {
log.Ctx(ctx).Warn("Wind data check",
zap.Bool("first", firstExtraction),
zap.Float64("lat", lat),
zap.Float64("lon", lon),
zap.Float64("alt", alt),
zap.Float64("u", w[0]),
zap.Float64("v", w[1]))
firstExtraction = false
}
return w[0], w[1]
}
for alt < targetAltitude {
altRate := ascentRate
if customCurve != nil {
altRate = s.getCustomAltitudeRate(customCurve, alt, ascentRate)
}
latNew, lonNew, altNew := rk4Step(lat, lon, alt, timeCur, dt, windFunc, altRate)
timeCur = timeCur.Add(time.Duration(dt) * time.Second)
lat = latNew
lon = lonNew
alt = altNew
if alt >= targetAltitude {
alt = targetAltitude
// Record burst point
wU, wV := windFunc(lat, lon, alt, timeCur)
latCopy := lat
lonCopy := lon
altCopy := alt
timeCopy := timeCur
windU := wU
windV := wV
results = append(results, ds.PredicitonResult{
Latitude: &latCopy,
Longitude: &lonCopy,
Altitude: &altCopy,
Timestamp: &timeCopy,
WindU: &windU,
WindV: &windV,
})
break
}
if !timeCur.Before(nextOutputTime) {
wU, wV := windFunc(lat, lon, alt, timeCur)
latCopy := lat
lonCopy := lon
altCopy := alt
timeCopy := timeCur
windU := wU
windV := wV
results = append(results, ds.PredicitonResult{
Latitude: &latCopy,
Longitude: &lonCopy,
Altitude: &altCopy,
Timestamp: &timeCopy,
WindU: &windU,
WindV: &windV,
})
nextOutputTime = nextOutputTime.Add(time.Duration(outputInterval) * time.Second)
}
}
return results
}
func (s *Service) simulateDescent(ctx context.Context, params ds.PredictionParameters, descentRate, targetAltitude float64, customCurve *CustomCurve) []ds.PredicitonResult {
const dt = 10.0 // simulation step in seconds
const outputInterval = 60.0 // output every 60 seconds
lat := *params.LaunchLatitude
lon := *params.LaunchLongitude
alt := *params.LaunchAltitude
timeCur := *params.LaunchDatetime
results := make([]ds.PredicitonResult, 0, 1000)
latCopy := lat
lonCopy := lon
altCopy := alt
timeCopy := timeCur
wind := [2]float64{0, 0}
windU := wind[0]
windV := wind[1]
results = append(results, ds.PredicitonResult{
Latitude: &latCopy,
Longitude: &lonCopy,
Altitude: &altCopy,
Timestamp: &timeCopy,
WindU: &windU,
WindV: &windV,
})
nextOutputTime := timeCur.Add(time.Duration(outputInterval) * time.Second)
windFunc := func(lat, lon, alt float64, t time.Time) (float64, float64) {
w, err := s.ExtractWind(ctx, lat, lon, alt, t)
if err != nil {
log.Ctx(ctx).Error("Wind extraction FAILED during descent",
zap.Error(err),
zap.Float64("lat", lat),
zap.Float64("lon", lon),
zap.Float64("alt", alt),
zap.Time("time", t))
return 0, 0
}
return w[0], w[1]
}
for alt > targetAltitude {
altRate := -descentRateAtAlt(descentRate, alt)
if customCurve != nil {
altRate = -s.getCustomAltitudeRate(customCurve, alt, descentRate)
}
latNew, lonNew, altNew := rk4Step(lat, lon, alt, timeCur, dt, windFunc, altRate)
timeCur = timeCur.Add(time.Duration(dt) * time.Second)
lat = latNew
lon = lonNew
alt = altNew
if alt <= targetAltitude {
alt = targetAltitude
// Record landing point
wU, wV := windFunc(lat, lon, alt, timeCur)
latCopy := lat
lonCopy := lon
altCopy := alt
timeCopy := timeCur
windU := wU
windV := wV
results = append(results, ds.PredicitonResult{
Latitude: &latCopy,
Longitude: &lonCopy,
Altitude: &altCopy,
Timestamp: &timeCopy,
WindU: &windU,
WindV: &windV,
})
break
}
if !timeCur.Before(nextOutputTime) {
wU, wV := windFunc(lat, lon, alt, timeCur)
latCopy := lat
lonCopy := lon
altCopy := alt
timeCopy := timeCur
windU := wU
windV := wV
results = append(results, ds.PredicitonResult{
Latitude: &latCopy,
Longitude: &lonCopy,
Altitude: &altCopy,
Timestamp: &timeCopy,
WindU: &windU,
WindV: &windV,
})
nextOutputTime = nextOutputTime.Add(time.Duration(outputInterval) * time.Second)
}
}
return results
}
func (s *Service) simulateFloat(ctx context.Context, startResult ds.PredicitonResult, duration time.Duration) []ds.PredicitonResult {
const dt = 10.0 // simulation step in seconds
const outputInterval = 60.0 // output every 60 seconds
lat := *startResult.Latitude
lon := *startResult.Longitude
alt := *startResult.Altitude
timeCur := *startResult.Timestamp
endTime := timeCur.Add(duration)
results := make([]ds.PredicitonResult, 0, 1000)
// Always include the initial float point
latCopy := lat
lonCopy := lon
altCopy := alt
timeCopy := timeCur
wind := [2]float64{0, 0}
windU := wind[0]
windV := wind[1]
results = append(results, ds.PredicitonResult{
Latitude: &latCopy,
Longitude: &lonCopy,
Altitude: &altCopy,
Timestamp: &timeCopy,
WindU: &windU,
WindV: &windV,
})
var nextOutputTime = timeCur.Add(time.Duration(outputInterval) * time.Second)
for timeCur.Before(endTime) {
wind, err := s.ExtractWind(ctx, lat, lon, alt, timeCur)
if err != nil {
log.Ctx(ctx).Warn("Wind extraction failed during float", zap.Error(err))
break
}
latDot := (wind[1] / 111320.0)
lonDot := (wind[0] / (40075000.0 * math.Cos(lat*math.Pi/180) / 360.0))
lat += latDot * dt
lon += lonDot * dt
// alt remains constant during float
timeCur = timeCur.Add(time.Duration(dt) * time.Second)
if !timeCur.Before(nextOutputTime) {
latCopy := lat
lonCopy := lon
altCopy := alt
timeCopy := timeCur
windU := wind[0]
windV := wind[1]
results = append(results, ds.PredicitonResult{
Latitude: &latCopy,
Longitude: &lonCopy,
Altitude: &altCopy,
Timestamp: &timeCopy,
WindU: &windU,
WindV: &windV,
})
nextOutputTime = nextOutputTime.Add(time.Duration(outputInterval) * time.Second)
}
}
return results
}
// airDensity returns ISA air density in kg/m³ at given altitude in meters
func airDensity(h float64) float64 {
var T, p float64
switch {
case h < 11000:
T = 288.15 - 0.0065*h
p = 101325 * math.Pow(T/288.15, 5.2561)
case h < 20000:
T = 216.65
p = 22632.1 * math.Exp(-0.00015769*(h-11000))
case h < 32000:
T = 216.65 + 0.001*(h-20000)
p = 5474.89 * math.Pow(T/216.65, -34.1632)
default:
T = 228.65 + 0.0028*(h-32000)
p = 868.019 * math.Pow(T/228.65, -12.2009)
}
return p / (287.05 * T)
}
// descentRateAtAlt returns descent rate adjusted for air density at altitude.
// descent_rate parameter is the sea-level rate. At altitude, thinner air means faster descent.
func descentRateAtAlt(seaLevelRate, alt float64) float64 {
rho0 := airDensity(0)
rhoH := airDensity(alt)
if rhoH <= 0 {
return seaLevelRate
}
return seaLevelRate * math.Sqrt(rho0/rhoH)
}
func (s *Service) simulateCustomAscent(ctx context.Context, params ds.PredictionParameters, curve *CustomCurve) []ds.PredicitonResult {
// Implementation for custom ascent curve
// This would interpolate the altitude rate from the custom curve
return s.simulateAscent(ctx, params, 5.0, 30000.0, curve)
}
func (s *Service) simulateCustomDescent(ctx context.Context, params ds.PredictionParameters, curve *CustomCurve) []ds.PredicitonResult {
// Implementation for custom descent curve
// This would interpolate the altitude rate from the custom curve
return s.simulateDescent(ctx, params, 5.0, 0.0, curve)
}
func (s *Service) getCustomAltitudeRate(curve *CustomCurve, currentAltitude, defaultRate float64) float64 {
if curve == nil || len(curve.Altitude) < 2 {
return defaultRate
}
// Find the two points in the curve that bracket the current altitude
for i := 0; i < len(curve.Altitude)-1; i++ {
if curve.Altitude[i] <= currentAltitude && currentAltitude <= curve.Altitude[i+1] {
// Linear interpolation
alt1, alt2 := curve.Altitude[i], curve.Altitude[i+1]
time1, time2 := curve.Time[i], curve.Time[i+1]
if alt2 == alt1 {
return defaultRate
}
// Calculate rate (change in altitude per second)
if time2 > time1 {
return (alt2 - alt1) / (time2 - time1)
}
return defaultRate
}
}
return defaultRate
}
func parseCustomCurve(base64Data string) (*CustomCurve, error) {
data, err := base64.StdEncoding.DecodeString(base64Data)
if err != nil {
return nil, err
}
var curve CustomCurve
if err := json.Unmarshal(data, &curve); err != nil {
return nil, err
}
return &curve, nil
}

492
internal/service/predictor_test.go
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@ -1,492 +0,0 @@
package service
import (
"context"
"testing"
"time"
"git.intra.yksa.space/gsn/predictor/internal/pkg/ds"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
)
// MockGrib is a mock implementation of the Grib interface
type MockGrib struct {
mock.Mock
}
func (m *MockGrib) Update(ctx context.Context) error {
args := m.Called(ctx)
return args.Error(0)
}
func (m *MockGrib) Extract(ctx context.Context, lat, lon, alt float64, t time.Time) ([2]float64, error) {
args := m.Called(ctx, lat, lon, alt, t)
return args.Get(0).([2]float64), args.Error(1)
}
func (m *MockGrib) Close() error {
args := m.Called()
return args.Error(0)
}
// Helper function to create a test service with mocked GRIB
func createTestService() (*Service, *MockGrib) {
mockGrib := new(MockGrib)
// Default mock behavior: return constant wind (5 m/s east, 3 m/s north)
mockGrib.On("Extract", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).
Return([2]float64{5.0, 3.0}, nil)
service := &Service{
grib: mockGrib,
}
return service, mockGrib
}
// Helper function to create basic prediction parameters
func createBasicParams() ds.PredictionParameters {
lat := 40.0
lon := -105.0
alt := 1000.0
launchTime := time.Date(2024, 1, 1, 12, 0, 0, 0, time.UTC)
profile := "standard_profile"
ascentRate := 5.0
burstAltitude := 10000.0
descentRate := 5.0
return ds.PredictionParameters{
LaunchLatitude: &lat,
LaunchLongitude: &lon,
LaunchAltitude: &alt,
LaunchDatetime: &launchTime,
Profile: &profile,
AscentRate: &ascentRate,
BurstAltitude: &burstAltitude,
DescentRate: &descentRate,
}
}
func TestRestrictedPrediction_OnlyAscent(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
// Restrict to ascent only
params.SimulateStages = []string{"ascent"}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// Verify all results are during ascent phase (altitude increasing)
for i := 1; i < len(results); i++ {
assert.GreaterOrEqual(t, *results[i].Altitude, *results[i-1].Altitude,
"Altitude should be increasing or equal during ascent")
}
// Last altitude should be near burst altitude
lastAlt := *results[len(results)-1].Altitude
burstAlt := *params.BurstAltitude
assert.InDelta(t, burstAlt, lastAlt, 500.0, "Last altitude should be near burst altitude")
}
func TestRestrictedPrediction_OnlyDescent(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
// Restrict to descent only
params.SimulateStages = []string{"descent"}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// First result should be at burst altitude (since ascent was skipped)
firstAlt := *results[0].Altitude
burstAlt := *params.BurstAltitude
assert.Equal(t, burstAlt, firstAlt, "Should start at burst altitude when ascent is skipped")
// Verify all results are during descent phase (altitude decreasing)
for i := 1; i < len(results); i++ {
assert.LessOrEqual(t, *results[i].Altitude, *results[i-1].Altitude,
"Altitude should be decreasing or equal during descent")
}
// Last altitude should be near ground
lastAlt := *results[len(results)-1].Altitude
assert.Less(t, lastAlt, 1000.0, "Last altitude should be near ground")
}
func TestRestrictedPrediction_AscentAndDescent(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
// Include both ascent and descent
params.SimulateStages = []string{"ascent", "descent"}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// Find the peak altitude (transition point)
maxAlt := 0.0
maxIdx := 0
for i, result := range results {
if *result.Altitude > maxAlt {
maxAlt = *result.Altitude
maxIdx = i
}
}
// Verify ascent phase
for i := 1; i <= maxIdx; i++ {
assert.GreaterOrEqual(t, *results[i].Altitude, *results[i-1].Altitude,
"Altitude should increase during ascent phase")
}
// Verify descent phase
for i := maxIdx + 1; i < len(results); i++ {
assert.LessOrEqual(t, *results[i].Altitude, *results[i-1].Altitude,
"Altitude should decrease during descent phase")
}
}
func TestRestrictedPrediction_FloatProfile_OnlyFloat(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
profile := "float_profile"
floatAlt := 15000.0
params.Profile = &profile
params.FloatAltitude = &floatAlt
// Restrict to float only
params.SimulateStages = []string{"float"}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// All results should be at the float altitude
for _, result := range results {
assert.Equal(t, floatAlt, *result.Altitude,
"Altitude should remain constant at float altitude")
}
// Verify horizontal movement (lat/lon changes due to wind)
firstLat := *results[0].Latitude
lastLat := *results[len(results)-1].Latitude
assert.NotEqual(t, firstLat, lastLat, "Latitude should change during float due to wind")
}
func TestRestrictedPrediction_FloatProfile_AllStages(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
profile := "float_profile"
floatAlt := 15000.0
params.Profile = &profile
params.FloatAltitude = &floatAlt
// Include all stages
params.SimulateStages = []string{"ascent", "float", "descent"}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// Verify we have ascending, constant, and descending altitude patterns
hasAscent := false
hasFloat := false
hasDescent := false
const altTolerance = 50.0 // Tolerance for altitude comparison
for i := 1; i < len(results); i++ {
altDiff := *results[i].Altitude - *results[i-1].Altitude
if altDiff > altTolerance {
hasAscent = true
} else if altDiff < -altTolerance {
hasDescent = true
} else if *results[i].Altitude > 10000 { // Float happens at high altitude
hasFloat = true
}
}
assert.True(t, hasAscent, "Should have ascent phase")
assert.True(t, hasFloat, "Should have float phase")
assert.True(t, hasDescent, "Should have descent phase")
// Verify maximum altitude is near float altitude
maxAlt := 0.0
for _, result := range results {
if *result.Altitude > maxAlt {
maxAlt = *result.Altitude
}
}
assert.InDelta(t, floatAlt, maxAlt, 1000.0, "Max altitude should be near float altitude")
}
func TestRestrictedPrediction_ReverseProfile_OnlyFloat(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
profile := "reverse_profile"
floatAlt := 5000.0
params.Profile = &profile
params.FloatAltitude = &floatAlt
// Restrict to float only
params.SimulateStages = []string{"float"}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// All results should be at the float altitude
for _, result := range results {
assert.InDelta(t, floatAlt, *result.Altitude, 10.0,
"Altitude should remain near float altitude")
}
}
func TestRestrictedPrediction_EmptyStages_SimulatesAll(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
// Empty SimulateStages should simulate all stages
params.SimulateStages = []string{}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// Should have both ascent and descent
// Find the peak
maxAlt := 0.0
hasAscent := false
hasDescent := false
for i := 1; i < len(results); i++ {
if *results[i].Altitude > *results[i-1].Altitude {
hasAscent = true
}
if *results[i].Altitude < *results[i-1].Altitude {
hasDescent = true
}
if *results[i].Altitude > maxAlt {
maxAlt = *results[i].Altitude
}
}
assert.True(t, hasAscent, "Should have ascent phase")
assert.True(t, hasDescent, "Should have descent phase")
}
func TestRestrictedPrediction_NilStages_SimulatesAll(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
// Nil SimulateStages should simulate all stages
params.SimulateStages = nil
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// Should have both ascent and descent
maxAlt := 0.0
minAltAfterMax := 1000000.0
for _, result := range results {
if *result.Altitude > maxAlt {
maxAlt = *result.Altitude
}
}
foundMax := false
for _, result := range results {
if *result.Altitude == maxAlt {
foundMax = true
}
if foundMax && *result.Altitude < minAltAfterMax {
minAltAfterMax = *result.Altitude
}
}
// Should reach high altitude and come back down
assert.Greater(t, maxAlt, 5000.0, "Should reach high altitude")
assert.Less(t, minAltAfterMax, maxAlt, "Should descend after reaching max altitude")
}
func TestRestrictedPrediction_InvalidStage_IgnoresInvalid(t *testing.T) {
service, _ := createTestService()
params := createBasicParams()
// Include invalid stage name (should be ignored)
params.SimulateStages = []string{"ascent", "invalid_stage", "descent"}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// Should still simulate ascent and descent, ignoring the invalid stage
}
func TestRestrictedPrediction_WindImpact(t *testing.T) {
service, mockGrib := createTestService()
// Override mock to return strong eastward wind
mockGrib.ExpectedCalls = nil
mockGrib.On("Extract", mock.Anything, mock.Anything, mock.Anything, mock.Anything, mock.Anything).
Return([2]float64{20.0, 0.0}, nil) // Strong eastward wind
params := createBasicParams()
params.SimulateStages = []string{"ascent"}
results, err := service.PerformPrediction(context.Background(), params)
assert.NoError(t, err)
assert.NotEmpty(t, results)
// Longitude should increase significantly due to eastward wind
firstLon := *results[0].Longitude
lastLon := *results[len(results)-1].Longitude
assert.Greater(t, lastLon, firstLon, "Longitude should increase with eastward wind")
// Verify wind values are captured in results
for _, result := range results {
if result.WindU != nil {
// Wind values should be present in results
assert.NotNil(t, result.WindV, "WindV should be present if WindU is present")
}
}
}
func TestRestrictedPrediction_MissingRequiredParams(t *testing.T) {
service, _ := createTestService()
testCases := []struct {
name string
params ds.PredictionParameters
}{
{
name: "Missing latitude",
params: ds.PredictionParameters{
LaunchLongitude: floatPtr(-105.0),
LaunchAltitude: floatPtr(1000.0),
LaunchDatetime: timePtr(time.Now()),
},
},
{
name: "Missing longitude",
params: ds.PredictionParameters{
LaunchLatitude: floatPtr(40.0),
LaunchAltitude: floatPtr(1000.0),
LaunchDatetime: timePtr(time.Now()),
},
},
{
name: "Missing altitude",
params: ds.PredictionParameters{
LaunchLatitude: floatPtr(40.0),
LaunchLongitude: floatPtr(-105.0),
LaunchDatetime: timePtr(time.Now()),
},
},
{
name: "Missing datetime",
params: ds.PredictionParameters{
LaunchLatitude: floatPtr(40.0),
LaunchLongitude: floatPtr(-105.0),
LaunchAltitude: floatPtr(1000.0),
},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
tc.params.SimulateStages = []string{"ascent"}
results, err := service.PerformPrediction(context.Background(), tc.params)
assert.Error(t, err)
assert.Equal(t, ErrInvalidParameters, err)
assert.Nil(t, results)
})
}
}
func TestShouldSimulateStage(t *testing.T) {
testCases := []struct {
name string
stages []string
queryStage string
shouldSimulate bool
}{
{
name: "Empty filter simulates all",
stages: []string{},
queryStage: "ascent",
shouldSimulate: true,
},
{
name: "Nil filter simulates all",
stages: nil,
queryStage: "descent",
shouldSimulate: true,
},
{
name: "Stage in filter",
stages: []string{"ascent", "descent"},
queryStage: "ascent",
shouldSimulate: true,
},
{
name: "Stage not in filter",
stages: []string{"ascent"},
queryStage: "descent",
shouldSimulate: false,
},
{
name: "Float stage in filter",
stages: []string{"float"},
queryStage: "float",
shouldSimulate: true,
},
{
name: "Multiple stages excluding one",
stages: []string{"ascent", "float"},
queryStage: "descent",
shouldSimulate: false,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
params := ds.PredictionParameters{
SimulateStages: tc.stages,
}
result := shouldSimulateStage(params, tc.queryStage)
assert.Equal(t, tc.shouldSimulate, result)
})
}
}
// Helper functions
func floatPtr(f float64) *float64 {
return &f
}
func timePtr(t time.Time) *time.Time {
return &t
}

60
internal/service/service.go
View file

@ -1,60 +0,0 @@
package service
import (
"context"
"time"
"git.intra.yksa.space/gsn/predictor/internal/pkg/log"
)
type Service struct {
grib Grib
}
func New(gribService Grib) (*Service, error) {
svc := &Service{
grib: gribService,
}
return svc, nil
}
// UpdateWeatherData updates weather forecast data using the configured grib service
func (s *Service) UpdateWeatherData(ctx context.Context) error {
return s.grib.Update(ctx)
}
// ExtractWind extracts wind data for given coordinates and time
func (s *Service) ExtractWind(ctx context.Context, lat, lon, alt float64, ts time.Time) ([2]float64, error) {
return s.grib.Extract(ctx, lat, lon, alt, ts)
}
// Update updates the GRIB data (implements updater.GribService)
func (s *Service) Update(ctx context.Context) error {
return s.UpdateWeatherData(ctx)
}
// Start starts the service
func (s *Service) Start() {
log.Ctx(context.Background()).Info("service started")
}
// Stop stops the service
func (s *Service) Stop() {
log.Ctx(context.Background()).Info("service stopped")
}
// Close closes the service and releases resources
func (s *Service) Close() error {
s.Stop()
return nil
}
func (s *Service) GetGribStatus(ctx context.Context) (ready bool, lastUpdate time.Time, isFresh bool, errMsg string) {
if gribStatus, ok := s.grib.(interface {
GetStatus() (ready bool, lastUpdate time.Time, isFresh bool, errMsg string)
}); ok {
return gribStatus.GetStatus()
}
return false, time.Time{}, false, "grib service does not implement GetStatus"
}