implement openweather main

.env.template

@@ -0,0 +1 @@
+OPENWEATHER_API_KEY=

.gitignore

@@ -1,3 +1,4 @@
 /vendor/
 /seven-skies
 /.vscode/launch.json
+/.env

cmd/openweather/main.go

@@ -0,0 +1,107 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"runtime/debug"
+	"strconv"
+
+	"github.com/go-co-op/gocron/v2"
+	"github.com/joho/godotenv"
+	"github.com/neatflowcv/seven-skies/internal/pkg/openweather"
+)
+
+func version() string {
+	info, ok := debug.ReadBuildInfo()
+	if !ok {
+		return "unknown"
+	}
+
+	return info.Main.Version
+}
+
+func main() {
+	godotenv.Load()
+
+	key := os.Getenv("OPENWEATHER_API_KEY")
+	if key == "" {
+		log.Panic("OPENWEATHER_API_KEY is not set")
+	}
+
+	lat := os.Getenv("OPENWEATHER_LAT")
+	if lat == "" {
+		log.Panic("OPENWEATHER_LAT is not set")
+	}
+
+	lon := os.Getenv("OPENWEATHER_LON")
+	if lon == "" {
+		log.Panic("OPENWEATHER_LON is not set")
+	}
+
+	log.Println("version", version())
+
+	scheduler, err := gocron.NewScheduler()
+	if err != nil {
+		log.Panic("error in create scheduler", err)
+	}
+
+	defer func() {
+		err := scheduler.Shutdown()
+		if err != nil {
+			log.Println("error in shutdown scheduler", err)
+		}
+	}()
+
+	latFloat, err := strconv.ParseFloat(lat, 64)
+	if err != nil {
+		log.Panic("error in parse lat", err)
+	}
+
+	lonFloat, err := strconv.ParseFloat(lon, 64)
+	if err != nil {
+		log.Panic("error in parse lon", err)
+	}
+
+	err = Task(key, latFloat, lonFloat)
+	if err != nil {
+		log.Panic("error in task", err)
+	}
+
+	job, err := scheduler.NewJob(
+		gocron.CronJob("5 */2 * * *", false), // openweather에서 2시간마다 데이터가 업데이트 된다.
+		// 5분을 준 이유는 업데이트가 바로 된다는 보장이 없어서
+		gocron.NewTask(
+			Task,
+			key,
+			latFloat,
+			lonFloat,
+		),
+	)
+	if err != nil {
+		log.Panic("error in create job", err)
+	}
+
+	scheduler.Start()
+
+	nextRun, err := job.NextRun()
+	if err != nil {
+		log.Panic("error in get next run", err)
+	}
+	log.Println("next run", nextRun)
+
+	select {}
+}
+
+func Task(key string, lat float64, lon float64) error {
+	log.Println("get forecast")
+	forecast, err := openweather.Forecast(context.Background(), key, lat, lon)
+	if err != nil {
+		log.Println("error in get forecast", err)
+		return err
+	}
+
+	log.Println("get forecast successfully", forecast)
+
+	return nil
+}

go.mod

@@ -3,17 +3,25 @@ module github.com/neatflowcv/seven-skies
 go 1.25.5
 
 require (
+	github.com/go-co-op/gocron/v2 v2.18.2
+	github.com/joho/godotenv v1.5.1
 	github.com/nats-io/nats.go v1.47.0
 	github.com/stretchr/testify v1.11.1
+	resty.dev/v3 v3.0.0-beta.4
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/jonboulle/clockwork v0.5.0 // indirect
 	github.com/klauspost/compress v1.18.2 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
 	github.com/nats-io/nkeys v0.4.12 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/robfig/cron/v3 v3.0.1 // indirect
 	golang.org/x/crypto v0.45.0 // indirect
+	golang.org/x/net v0.47.0 // indirect
 	golang.org/x/sys v0.38.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,22 +1,47 @@
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-co-op/gocron/v2 v2.18.2 h1:+5VU41FUXPWSPKLXZQ/77SGzUiPCcakU0v7ENc2H20Q=
+github.com/go-co-op/gocron/v2 v2.18.2/go.mod h1:Zii6he+Zfgy5W9B+JKk/KwejFOW0kZTFvHtwIpR4aBI=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/jonboulle/clockwork v0.5.0 h1:Hyh9A8u51kptdkR+cqRpT1EebBwTn1oK9YfGYbdFz6I=
+github.com/jonboulle/clockwork v0.5.0/go.mod h1:3mZlmanh0g2NDKO5TWZVJAfofYk64M7XN3SzBPjZF60=
 github.com/klauspost/compress v1.18.2 h1:iiPHWW0YrcFgpBYhsA6D1+fqHssJscY/Tm/y2Uqnapk=
 github.com/klauspost/compress v1.18.2/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/nats-io/nats.go v1.47.0 h1:YQdADw6J/UfGUd2Oy6tn4Hq6YHxCaJrVKayxxFqYrgM=
 github.com/nats-io/nats.go v1.47.0/go.mod h1:iRWIPokVIFbVijxuMQq4y9ttaBTMe0SFdlZfMDd+33g=
 github.com/nats-io/nkeys v0.4.12 h1:nssm7JKOG9/x4J8II47VWCL1Ds29avyiQDRn0ckMvDc=
 github.com/nats-io/nkeys v0.4.12/go.mod h1:MT59A1HYcjIcyQDJStTfaOY6vhy9XTUjOFo+SVsvpBg=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
+github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 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/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
+github.com/robfig/cron/v3 v3.0.1/go.mod h1:eQICP3HwyT7UooqI/z+Ov+PtYAWygg1TEWWzGIFLtro=
+github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
 golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
+golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
+golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
 golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
 golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+resty.dev/v3 v3.0.0-beta.4 h1:2O77oFymtA4NT8AY87wAaSgSGUBk2yvvM1qno9VRXZU=
+resty.dev/v3 v3.0.0-beta.4/go.mod h1:NTOerrC/4T7/FE6tXIZGIysXXBdgNqwMZuKtxpea9NM=

internal/pkg/openweather/forecaster.go

@@ -0,0 +1,43 @@
+package openweather
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+
+	"resty.dev/v3"
+)
+
+var (
+	ErrForecast = errors.New("error in get forecast")
+)
+
+func Forecast(ctx context.Context, key string, lat float64, lon float64) (*ForecastResponse, error) {
+	client := resty.New()
+
+	defer func() {
+		err := client.Close()
+		if err != nil {
+			log.Println("error in close client", err)
+		}
+	}()
+
+	resp, err := client.R().
+		SetContext(ctx).
+		SetQueryParam("lat", fmt.Sprintf("%f", lat)).
+		SetQueryParam("lon", fmt.Sprintf("%f", lon)).
+		SetQueryParam("appid", key).
+		SetQueryParam("units", "metric").
+		SetResult(&ForecastResponse{}). //nolint:exhaustruct
+		Get("https://api.openweathermap.org/data/2.5/forecast")
+	if err != nil {
+		return nil, fmt.Errorf("error in get forecast: %w", err)
+	}
+
+	if resp.IsError() {
+		return nil, fmt.Errorf("%w: %s, %s", ErrForecast, resp.Status(), resp.String())
+	}
+
+	return resp.Result().(*ForecastResponse), nil //nolint:forcetypeassert
+}

internal/pkg/openweather/forecaster_test.go

@@ -0,0 +1,24 @@
+package openweather_test
+
+import (
+	_ "embed"
+	"encoding/json"
+	"testing"
+
+	"github.com/neatflowcv/seven-skies/internal/pkg/openweather"
+	"github.com/stretchr/testify/require"
+)
+
+//go:embed testdata/forecast.json
+var forecast []byte
+
+func TestForecast(t *testing.T) {
+	t.Parallel()
+
+	var resp openweather.ForecastResponse
+
+	err := json.Unmarshal(forecast, &resp)
+
+	require.NoError(t, err)
+	require.NotNil(t, forecast)
+}

internal/pkg/openweather/model.go

@@ -0,0 +1,70 @@
+package openweather
+
+type ForecastResponse struct {
+	Cod     string `json:"cod,omitempty"`
+	Message int    `json:"message,omitempty"`
+	Cnt     int    `json:"cnt,omitempty"`
+	List    []List `json:"list,omitempty"`
+	City    City   `json:"city,omitzero"`
+}
+
+type Main struct {
+	Temp      float64 `json:"temp,omitempty"`
+	FeelsLike float64 `json:"feels_like,omitempty"`
+	TempMin   float64 `json:"temp_min,omitempty"`
+	TempMax   float64 `json:"temp_max,omitempty"`
+	Pressure  int     `json:"pressure,omitempty"`
+	SeaLevel  int     `json:"sea_level,omitempty"`
+	GrndLevel int     `json:"grnd_level,omitempty"`
+	Humidity  int     `json:"humidity,omitempty"`
+	TempKf    float64 `json:"temp_kf,omitempty"`
+}
+
+type Weather struct {
+	ID          int    `json:"id,omitempty"`
+	Main        string `json:"main,omitempty"`
+	Description string `json:"description,omitempty"`
+	Icon        string `json:"icon,omitempty"`
+}
+
+type Clouds struct {
+	All int `json:"all,omitempty"`
+}
+
+type Wind struct {
+	Speed float64 `json:"speed,omitempty"`
+	Deg   int     `json:"deg,omitempty"`
+	Gust  float64 `json:"gust,omitempty"`
+}
+
+type Sys struct {
+	Pod string `json:"pod,omitempty"`
+}
+
+type List struct {
+	Dt         int       `json:"dt,omitempty"`
+	Main       Main      `json:"main,omitzero"`
+	Weather    []Weather `json:"weather,omitempty"`
+	Clouds     Clouds    `json:"clouds,omitzero"`
+	Wind       Wind      `json:"wind,omitzero"`
+	Visibility int       `json:"visibility,omitempty"`
+	Pop        float64   `json:"pop,omitempty"`
+	Sys        Sys       `json:"sys,omitzero"`
+	DtTxt      string    `json:"dt_txt,omitempty"`
+}
+
+type Coord struct {
+	Lat float64 `json:"lat,omitempty"`
+	Lon float64 `json:"lon,omitempty"`
+}
+
+type City struct {
+	ID         int    `json:"id,omitempty"`
+	Name       string `json:"name,omitempty"`
+	Coord      Coord  `json:"coord,omitzero"`
+	Country    string `json:"country,omitempty"`
+	Population int    `json:"population,omitempty"`
+	Timezone   int    `json:"timezone,omitempty"`
+	Sunrise    int    `json:"sunrise,omitempty"`
+	Sunset     int    `json:"sunset,omitempty"`
+}