package monitor

import "testing"

func TestToLiteInfo(t *testing.T) {
	info := MonInfo{
		Ver: "1.0.0",
		Cpu: CpuInfo{
			CpuBaseInfo: CpuBaseInfo{
				Core:  4,
				Logic: 8,
				Info:  []CPU{{CPU: 0, ModelName: "TestCPU"}},
			},
			CpuUsedInfo: CpuUsedInfo{UsedPercent: 55.5},
		},
		Mem:  MemInfo{Total: 16 * 1024 * 1024 * 1024, UsedPercent: 60},
		Load: LoadInfo{Load1: 0.5},
		Net: []NetInfo{
			{Name: "eth0", BytesSent: 10, BytesRecv: 20, PacketsSent: 1, PacketsRecv: 2, TotalBytesSent: 100, TotalBytesRecv: 200},
			{Name: "eth1", BytesSent: 30, BytesRecv: 40, PacketsSent: 3, PacketsRecv: 4, TotalBytesSent: 300, TotalBytesRecv: 400},
		},
		Disk: []DiskInfo{
			{Device: "C:", MountPoint: "C:\\", UsedPercent: 80, UsedVolume: "80GB", ReadBytes: 5, WriteBytes: 6},
		},
	}

	lite := ToLiteInfo(info)

	if lite.Ver != "1.0.0" {
		t.Errorf("Ver = %q", lite.Ver)
	}
	if lite.Cpu.Core != 4 || lite.Cpu.Logic != 8 {
		t.Errorf("Cpu Core/Logic = %d/%d, want 4/8", lite.Cpu.Core, lite.Cpu.Logic)
	}
	if lite.Cpu.UsedPercent != 55.5 {
		t.Errorf("Cpu.UsedPercent = %v", lite.Cpu.UsedPercent)
	}
	if len(lite.Cpu.Name) != 1 || lite.Cpu.Name[0] != "TestCPU" {
		t.Errorf("Cpu.Name = %v", lite.Cpu.Name)
	}
	if lite.Mem.Total != 16*1024*1024*1024 {
		t.Errorf("Mem.Total = %d", lite.Mem.Total)
	}
	if lite.Load.Load1 != 0.5 {
		t.Errorf("Load1 = %v", lite.Load.Load1)
	}
	// Net 多网卡应累加
	if lite.Net.BytesSent != 40 || lite.Net.BytesRecv != 60 {
		t.Errorf("Net.BytesSent/Recv = %d/%d, want 40/60", lite.Net.BytesSent, lite.Net.BytesRecv)
	}
	if lite.Net.TotalBytesSent != 400 || lite.Net.TotalBytesRecv != 600 {
		t.Errorf("Net.Total = %d/%d, want 400/600", lite.Net.TotalBytesSent, lite.Net.TotalBytesRecv)
	}
	if len(lite.Disk) != 1 || lite.Disk[0].Device != "C:" || lite.Disk[0].ReadBytes != 5 {
		t.Errorf("Disk = %+v", lite.Disk)
	}
}

func TestFormatFileSize(t *testing.T) {
	cases := []struct {
		in   uint64
		want string
	}{
		{512, "512.00B"},
		{1536, "1.50KB"},
		{1024 * 1024, "1.00MB"},
		{1024 * 1024 * 1024, "1.00GB"},
	}
	for _, c := range cases {
		if got := formatFileSize(c.in); got != c.want {
			t.Errorf("formatFileSize(%d) = %q, want %q", c.in, got, c.want)
		}
	}
}

func TestGetInfoZeroValue(t *testing.T) {
	// 未调用 Start 时 GetInfo 返回零值快照且不 panic
	info := GetInfo()
	if info.Ver != "" {
		t.Errorf("未启动时 Ver 应为空: %q", info.Ver)
	}
}