feat: implementar webapp app_compartir con visor universal, auth y purga 24h para guest

internal/config/config.go

@@ -0,0 +1,72 @@
+package config
+
+import (
+	"bufio"
+	"os"
+	"strings"
+)
+
+type Config struct {
+	Port              string
+	BaseURL           string
+	DataDir           string
+	UploadDir         string
+	DBPath            string
+	SessionSecret     string
+	WebControlURL     string
+	GoogleClientID    string
+	GoogleClientSecret string
+}
+
+func Load() *Config {
+	loadDotEnv(".env")
+
+	port := getEnv("PORT", "8085")
+	baseURL := getEnv("BASE_URL", "http://localhost:"+port)
+	dataDir := getEnv("DATA_DIR", "./data")
+	uploadDir := dataDir + "/uploads"
+	dbPath := dataDir + "/compartir.db"
+
+	return &Config{
+		Port:               port,
+		BaseURL:            strings.TrimRight(baseURL, "/"),
+		DataDir:            dataDir,
+		UploadDir:          uploadDir,
+		DBPath:             dbPath,
+		SessionSecret:      getEnv("SESSION_SECRET", "super-secret-compartir-key-2026"),
+		WebControlURL:      getEnv("WEBCONTROL_API_URL", "https://api.siax-system.net"),
+		GoogleClientID:     getEnv("GOOGLE_CLIENT_ID", ""),
+		GoogleClientSecret: getEnv("GOOGLE_CLIENT_SECRET", ""),
+	}
+}
+
+func getEnv(key, fallback string) string {
+	if val := os.Getenv(key); val != "" {
+		return val
+	}
+	return fallback
+}
+
+func loadDotEnv(filepath string) {
+	file, err := os.Open(filepath)
+	if err != nil {
+		return
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+		if line == "" || strings.HasPrefix(line, "#") {
+			continue
+		}
+		parts := strings.SplitN(line, "=", 2)
+		if len(parts) == 2 {
+			k := strings.TrimSpace(parts[0])
+			v := strings.Trim(strings.TrimSpace(parts[1]), `"'`)
+			if os.Getenv(k) == "" {
+				os.Setenv(k, v)
+			}
+		}
+	}
+}