working on ron-example

internal/config/config.go

@@ -2,11 +2,52 @@ package config
 
 import (
 	"aidanwoods.dev/go-paseto"
+	"bufio"
+	"log/slog"
+	"os"
+	"strings"
 	"time"
 )
 
+func New() *App {
+	var err error
+
+	err = loadEnvFile()
+	if err != nil {
+		slog.Error("error loading env file", "error", err)
+		panic(err)
+	}
+
+	var durationTime time.Duration
+	var ak paseto.V4AsymmetricSecretKey
+
+	ak, err = paseto.NewV4AsymmetricSecretKeyFromHex(os.Getenv("ASYMMETRICKEY"))
+	if err != nil {
+		ak = paseto.NewV4AsymmetricSecretKey()
+	}
+	pk := ak.Public()
+
+	duration := os.Getenv("DURATION")
+	if duration != "" {
+		durationTime, err = time.ParseDuration(duration)
+		if err != nil {
+			durationTime = time.Hour * 24 * 7
+		}
+	}
+
+	return &App{
+		DataSource: os.Getenv("DATASOURCE"),
+		Security: Security{
+			AsymmetricKey: ak,
+			PublicKey:     pk,
+			Duration:      durationTime,
+		},
+	}
+}
+
 type App struct {
-	Security Security
+	DataSource string
+	Security   Security
 }
 
 type Security struct {
@@ -14,3 +55,27 @@ type Security struct {
 	PublicKey     paseto.V4AsymmetricPublicKey
 	Duration      time.Duration
 }
+
+func loadEnvFile() error {
+	file, err := os.Open(".env")
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if len(line) == 0 || strings.HasPrefix(line, "#") {
+			continue
+		}
+		parts := strings.SplitN(line, "=", 2)
+		if len(parts) != 2 {
+			continue
+		}
+		key := strings.TrimSpace(parts[0])
+		value := strings.TrimSpace(parts[1])
+		os.Setenv(key, value)
+	}
+	return scanner.Err()
+}

internal/config/db.go

@@ -0,0 +1,23 @@
+package config
+
+import (
+	"context"
+	"github.com/jackc/pgx/v5/pgxpool"
+	"log/slog"
+)
+
+func NewPostgresPool(dataSource string) *pgxpool.Pool {
+	dbPool, err := pgxpool.New(context.Background(), dataSource)
+	if err != nil {
+		slog.Error("error connecting to database", "error", err)
+		panic(err)
+	}
+
+	if err := dbPool.Ping(context.Background()); err != nil {
+		slog.Error("error pinging database, maybe incorrect datasource", "error", err)
+		panic(err)
+	}
+
+	slog.Info("connected to database")
+	return dbPool
+}