tsk-51: Send message endpoint (#52)

Closes #51

Reviewed-on: phoenix/textsender-api#52
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

internal/config/config.go

@@ -3,10 +3,10 @@ package config
 import (
 	"flag"
 	"fmt"
-	"log"
 	"os"
 	"strconv"
 
+	"git.kundeng.us/phoenix/textsender-models/tx0/config"
 	"github.com/joho/godotenv"
 
 	"git.kundeng.us/phoenix/textsender-api/internal/version"
@@ -17,6 +17,7 @@ type Config struct {
 	ServerPort   string
 	ResetDB      bool
 	JWTSecret    string `env:"JWT_SECRET" required:"true"`
+	TwilioConfig *config.TwiloConfig
 }
 
 type ConnectionInfo struct {
@@ -46,7 +47,7 @@ func PrintName() {
 	fmt.Println(version.String())
 }
 
-func Load() *Config {
+func Load() (*Config, *config.TwiloConfig, error) {
 	versionFlag := flag.Bool("version", false, "Print version information")
 	resetDb := flag.Bool("reset-db", false, "Reset the database schema and exit")
 	port := flag.String("port", PORT, "Server port")
@@ -57,19 +58,22 @@ func Load() *Config {
 		os.Exit(-1)
 	}
 
-	err := godotenv.Load()
-	if err != nil {
-		log.Fatal("Error loading .env file")
+	if err := godotenv.Load(); err != nil {
+		return nil, nil, fmt.Errorf("Error loading .env file")
 	}
 
 	unpackedConnString := UnpackDBConnString()
 	dbConnString := unpackedConnString.Parse()
 
-	return &Config{
-		DBConnString: dbConnString,
-		ServerPort:   *port,
-		ResetDB:      *resetDb,
-		JWTSecret:    os.Getenv("JWT_SECRET"),
+	if cfg, err := TwilioConfig(); err != nil {
+		return nil, nil, err
+	} else {
+		return &Config{
+			DBConnString: dbConnString,
+			ServerPort:   *port,
+			ResetDB:      *resetDb,
+			JWTSecret:    os.Getenv("JWT_SECRET"),
+		}, cfg, nil
 	}
 }
 
@@ -124,6 +128,31 @@ func UnpackDBConnString() (connInfo ConnectionInfo) {
 	return
 }
 
+func TwilioConfig() (*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 account sid not found")
+	} else if len(serviceSid) == 0 {
+		return nil, fmt.Errorf("Twilio config service sid not found")
+	} else if len(authToken) == 0 {
+		return nil, fmt.Errorf("Twilio config auth token not found")
+	} else if len(phoneNumber) == 0 {
+		return nil, fmt.Errorf("Twilio config phone number not found")
+	} else {
+		var cfg config.TwiloConfig
+		cfg.AccountSID = authSid
+		cfg.ServiceSID = serviceSid
+		cfg.AuthToken = authToken
+		cfg.Number = phoneNumber
+
+		return &cfg, nil
+	}
+}
+
 func (c *Config) GetDBConnString() string {
 	return c.DBConnString
 }