tsk-8: Schedule message (#15)

Closes #8

Reviewed-on: #15
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

internal/app/app.go

@@ -5,6 +5,7 @@ import (
 	"os"
 	"path"
 
+	"git.kundeng.us/phoenix/textsender-models/tx0/config"
 	"github.com/joho/godotenv"
 )
 
@@ -15,6 +16,7 @@ type App struct {
 	AuthUrl           string
 	ServiceUsername   string
 	ServicePassphrase string
+	TwilioConfig *config.TwiloConfig
 }
 
 func Load() (*App, error) {
@@ -44,8 +46,36 @@ func Load() (*App, error) {
 	} else if len(servicePassphrase) == 0 {
 		return nil, fmt.Errorf("Service passphrase not provided")
 	} else {
-		return &App{
-			ApiUrl: apiUrl, AuthUrl: authUrl, ServiceUsername: serviceUsername, ServicePassphrase: servicePassphrase,
-		}, nil
+		if cfg, err := loadTwilioConfig(); err != nil {
+			return nil, err
+		} else {
+			return &App{
+				ApiUrl: apiUrl, AuthUrl: authUrl, ServiceUsername: serviceUsername, ServicePassphrase: servicePassphrase, TwilioConfig: cfg,
+			}, nil
+		}
+	}
+}
+
+func loadTwilioConfig() (*config.TwiloConfig, error) {
+	authSid := os.Getenv("TWILIO_AUTH_SID")
+	serviceSid := os.Getenv("TWILIO_SERVICE_SID")
+	authToken := os.Getenv("TWILIO_AUTH_TOKEN")
+	phoneNumber := os.Getenv("TWILIO_PHONE_NUMBER")
+
+	if len(authSid) == 0 {
+		return nil, fmt.Errorf("Twilio config auth sid not provided")
+	} else if len(serviceSid) == 0 {
+		return nil, fmt.Errorf("Twilio config service sid not provided")
+	} else if len(authToken) == 0 {
+		return nil, fmt.Errorf("Twilio config token not provided")
+	} else if len(phoneNumber) == 0 {
+		return nil, fmt.Errorf("Twilio config phone number not provided")
+	} else {
+		cfg := config.TwiloConfig{}
+		cfg.AccountSID = authSid
+		cfg.AuthToken = authToken
+		cfg.ServiceSID = serviceSid
+		cfg.Number = phoneNumber
+		return &cfg, nil
 	}
 }