package service

import (
	"runtime"
	"time"

	"github.com/shirou/gopsutil/v4/cpu"
	"github.com/shirou/gopsutil/v4/disk"
	"github.com/shirou/gopsutil/v4/mem"
)

func (s *SystemConfigService) ServerInfo() (map[string]any, error) {
	physicalCores, err := cpu.Counts(false)
	if err != nil {
		return nil, err
	}
	cpuPercent, err := cpu.Percent(200*time.Millisecond, true)
	if err != nil {
		return nil, err
	}
	memory, err := mem.VirtualMemory()
	if err != nil {
		return nil, err
	}
	diskInfo := make([]map[string]any, 0)
	for _, mountPoint := range s.DiskMountPoints() {
		usage, usageErr := disk.Usage(mountPoint)
		if usageErr != nil {
			return nil, usageErr
		}
		diskInfo = append(diskInfo, map[string]any{"mountPoint": mountPoint, "usedMb": usage.Used / 1024 / 1024, "usedGb": usage.Used / 1024 / 1024 / 1024, "totalMb": usage.Total / 1024 / 1024, "totalGb": usage.Total / 1024 / 1024 / 1024, "usedPercent": int(usage.UsedPercent)})
	}
	usedMB, totalMB := memory.Used/1024/1024, memory.Total/1024/1024
	return map[string]any{
		"os":   map[string]any{"goos": runtime.GOOS, "numCpu": runtime.NumCPU(), "compiler": runtime.Compiler, "goVersion": runtime.Version(), "numGoroutine": runtime.NumGoroutine()},
		"cpu":  map[string]any{"cpus": cpuPercent, "cores": physicalCores},
		"ram":  map[string]any{"usedMb": usedMB, "totalMb": totalMB, "usedPercent": int(memory.UsedPercent)},
		"disk": diskInfo,
	}, nil
}