Prepara versao dev 1.0

backend/internal/api/middleware/tenant.go

@@ -0,0 +1,56 @@
+package middleware
+
+import (
+	"context"
+	"net/http"
+	"strings"
+
+	"aggios-app/backend/internal/repository"
+)
+
+type tenantContextKey string
+
+const TenantIDKey tenantContextKey = "tenantID"
+const SubdomainKey tenantContextKey = "subdomain"
+
+// TenantDetector detects tenant from subdomain
+func TenantDetector(tenantRepo *repository.TenantRepository) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			host := r.Host
+			
+			// Extract subdomain
+			// Examples:
+			// - agencia-xyz.localhost -> agencia-xyz
+			// - agencia-xyz.aggios.app -> agencia-xyz
+			// - dash.localhost -> dash (master admin)
+			// - localhost -> (institutional site)
+			
+			parts := strings.Split(host, ".")
+			var subdomain string
+			
+			if len(parts) >= 2 {
+				// Has subdomain
+				subdomain = parts[0]
+				
+				// Remove port if present
+				if strings.Contains(subdomain, ":") {
+					subdomain = strings.Split(subdomain, ":")[0]
+				}
+			}
+			
+			// Add subdomain to context
+			ctx := context.WithValue(r.Context(), SubdomainKey, subdomain)
+			
+			// If subdomain is not empty and not "dash" or "api", try to find tenant
+			if subdomain != "" && subdomain != "dash" && subdomain != "api" && subdomain != "localhost" {
+				tenant, err := tenantRepo.FindBySubdomain(subdomain)
+				if err == nil && tenant != nil {
+					ctx = context.WithValue(ctx, TenantIDKey, tenant.ID.String())
+				}
+			}
+			
+			next.ServeHTTP(w, r.WithContext(ctx))
+		})
+	}
+}