package config

import (
	"os"
	"testing"
	"time"
)

func TestLoadConfig(t *testing.T) {
	// Создаем временные файлы для тестирования
	configContent := `server_host: localhost
server_port: 1540
rac_port: 1545
rac_path: "/path/to/rac"
connection_timeout: 30s
command_timeout: 60s
retry_count: 3
retry_delay: 5s
log_level: Debug
server_name: "Test Server"`
	
	secretContent := `cluster_admin: "admin"
cluster_admin_password: "password"
db_admin: "dbadmin"
db_admin_password: "dbpassword"`
	
	projectContent := `service-mode:
  server_host: "localhost"
  server_port: 1540
  rac_port: 1545
  base_name: "TestDB"
  log_level: "Info"`
	
	// Создаем временные файлы
	configFile, err := os.CreateTemp("", "config_*.yaml")
	if err != nil {
		t.Fatalf("Failed to create temp config file: %v", err)
	}
	defer os.Remove(configFile.Name())
	
	secretFile, err := os.CreateTemp("", "secret_*.yaml")
	if err != nil {
		t.Fatalf("Failed to create temp secret file: %v", err)
	}
	defer os.Remove(secretFile.Name())
	
	projectFile, err := os.CreateTemp("", "project_*.yaml")
	if err != nil {
		t.Fatalf("Failed to create temp project file: %v", err)
	}
	defer os.Remove(projectFile.Name())
	
	// Записываем содержимое
	if _, err := configFile.WriteString(configContent); err != nil {
		t.Fatalf("Failed to write config file: %v", err)
	}
	configFile.Close()
	
	if _, err := secretFile.WriteString(secretContent); err != nil {
		t.Fatalf("Failed to write secret file: %v", err)
	}
	secretFile.Close()
	
	if _, err := projectFile.WriteString(projectContent); err != nil {
		t.Fatalf("Failed to write project file: %v", err)
	}
	projectFile.Close()
	
	// Тестируем загрузку конфигурации
	appConfig, err := LoadConfig(configFile.Name(), secretFile.Name(), projectFile.Name())
	if err != nil {
		t.Fatalf("LoadConfig failed: %v", err)
	}
	
	// Проверяем основную конфигурацию
	if appConfig.Project.ServiceMode.ServerHost != "localhost" {
		t.Errorf("Expected ServerHost 'localhost', got '%s'", appConfig.Project.ServiceMode.ServerHost)
	}
	
	if appConfig.Project.ServiceMode.ServerPort != 1540 {
		t.Errorf("Expected ServerPort 1540, got %d", appConfig.Project.ServiceMode.ServerPort)
	}
	
	if appConfig.Project.ServiceMode.RACPort != 1545 {
		t.Errorf("Expected RACPort 1545, got %d", appConfig.Project.ServiceMode.RACPort)
	}
	
	connectionTimeout, err := appConfig.Config.GetConnectionTimeout()
	if err != nil {
		t.Errorf("Failed to parse ConnectionTimeout: %v", err)
	}
	if connectionTimeout != 30*time.Second {
		t.Errorf("Expected ConnectionTimeout 30s, got %v", connectionTimeout)
	}
	
	// Проверяем секретную конфигурацию
	if appConfig.Secret.ClusterAdmin != "admin" {
		t.Errorf("Expected ClusterAdmin 'admin', got '%s'", appConfig.Secret.ClusterAdmin)
	}
	
	if appConfig.Secret.DBAdminPassword != "dbpassword" {
		t.Errorf("Expected DBAdminPassword 'dbpassword', got '%s'", appConfig.Secret.DBAdminPassword)
	}
	
	// Проверяем проектную конфигурацию
	if appConfig.Project.ServiceMode.BaseName != "TestDB" {
		t.Errorf("Expected BaseName 'TestDB', got '%s'", appConfig.Project.ServiceMode.BaseName)
	}
	
	if appConfig.Project.ServiceMode.LogLevel != "Info" {
		t.Errorf("Expected LogLevel 'Info', got '%s'", appConfig.Project.ServiceMode.LogLevel)
	}
}

func TestValidate(t *testing.T) {
	tests := []struct {
		name      string
		config    *AppConfig
		expectErr bool
	}{
		{
			name: "valid config",
			config: &AppConfig{
				Config: &Config{
					RACPath: "/path/to/rac",
				},
				Secret: &Secret{
					ClusterAdmin: "admin",
					DBAdmin:      "dbadmin",
				},
				Project: &ProjectConfig{
					ServiceMode: &ServiceModeConfig{
						ServerHost: "localhost",
						BaseName:   "TestDB",
					},
				},
			},
			expectErr: false,
		},
		{
			name: "missing server host",
			config: &AppConfig{
				Config: &Config{
					RACPath: "/path/to/rac",
				},
				Secret: &Secret{
					ClusterAdmin: "admin",
					DBAdmin:      "dbadmin",
				},
				Project: &ProjectConfig{
					ServiceMode: &ServiceModeConfig{
						ServerHost: "",
						BaseName:   "TestDB",
					},
				},
			},
			expectErr: true,
		},
		{
			name: "missing cluster admin",
			config: &AppConfig{
				Config: &Config{
					RACPath: "/path/to/rac",
				},
				Secret: &Secret{
					ClusterAdmin: "",
					DBAdmin:      "dbadmin",
				},
				Project: &ProjectConfig{
					ServiceMode: &ServiceModeConfig{
						ServerHost: "localhost",
						BaseName:   "TestDB",
					},
				},
			},
			expectErr: true,
		},
	}
	
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			err := tt.config.Validate()
			if tt.expectErr && err == nil {
				t.Error("Expected error but got none")
			}
			if !tt.expectErr && err != nil {
				t.Errorf("Expected no error but got: %v", err)
			}
		})
	}
}

func TestGetRACAddress(t *testing.T) {
	config := &AppConfig{
		Project: &ProjectConfig{
			ServiceMode: &ServiceModeConfig{
				ServerHost: "example.com",
				RACPort:    1545,
			},
		},
	}
	
	expected := "example.com:1545"
	actual := config.GetRACAddress()
	
	if actual != expected {
		t.Errorf("Expected '%s', got '%s'", expected, actual)
	}
}