package client

import (
	"os"
	"testing"
)

func TestNewClient(t *testing.T) {
	client := NewClient("http")
	if client == nil {
		t.Fatal("NewClient returned nil")
	}

	if client.mode != "http" {
		t.Errorf("Expected mode 'http', got '%s'", client.mode)
	}

	if client.systemProxyMgr == nil {
		t.Error("SystemProxyManager should be initialized")
	}
}

func TestClientStart_InvalidConfig(t *testing.T) {
	client := NewClient("http")

	// 测试不存在的配置文件
	err := client.Start("nonexistent.yaml")
	if err == nil {
		t.Error("Expected error for nonexistent config file")
	}
}

func TestClientStart_InvalidMode(t *testing.T) {
	// 创建临时配置文件
	tmpFile, err := os.CreateTemp("", "test_config_*.yaml")
	if err != nil {
		t.Fatal(err)
	}
	defer os.Remove(tmpFile.Name())

	// 写入基本配置
	configContent := `
serviceType: client
server:
  address: 127.0.0.1
  port: 1080
  username: test
  password: test
proxy:
  mode: http
  localPort: 8080
logLevel: info
timeout: 30s
`

	if _, err := tmpFile.WriteString(configContent); err != nil {
		t.Fatal(err)
	}
	tmpFile.Close()

	// 测试无效模式
	client := NewClient("invalid_mode")
	err = client.Start(tmpFile.Name())
	if err == nil {
		t.Error("Expected error for invalid mode")
	}
}