go

internal/config/config.go

@@ -0,0 +1,64 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+)
+
+// Config holds application configuration
+type Config struct {
+	GarminEmail    string
+	GarminPassword string
+	DatabasePath   string
+	RateLimit      time.Duration
+	SessionPath    string
+}
+
+// LoadConfig loads configuration from environment variables
+func LoadConfig() (*Config, error) {
+	email := os.Getenv("GARMIN_EMAIL")
+	password := os.Getenv("GARMIN_PASSWORD")
+	if email == "" || password == "" {
+		return nil, fmt.Errorf("GARMIN_EMAIL and GARMIN_PASSWORD environment variables are required")
+	}
+
+	databasePath := os.Getenv("DATABASE_PATH")
+	if databasePath == "" {
+		databasePath = "garmin.db"
+	}
+
+	rateLimit := parseDuration(os.Getenv("RATE_LIMIT"), 2*time.Second)
+	sessionPath := os.Getenv("SESSION_PATH")
+	if sessionPath == "" {
+		sessionPath = "/data/session.json"
+	}
+
+	// Ensure session path directory exists
+	if err := os.MkdirAll(filepath.Dir(sessionPath), 0755); err != nil {
+		return nil, fmt.Errorf("failed to create session directory: %w", err)
+	}
+
+	return &Config{
+		GarminEmail:    email,
+		GarminPassword: password,
+		DatabasePath:   databasePath,
+		RateLimit:      rateLimit,
+		SessionPath:    sessionPath,
+	}, nil
+}
+
+// parseDuration parses a duration string with a default
+func parseDuration(value string, defaultValue time.Duration) time.Duration {
+	if value == "" {
+		return defaultValue
+	}
+	
+	d, err := time.ParseDuration(value)
+	if err != nil {
+		return defaultValue
+	}
+	
+	return d
+}