package botEvents

import (
	"corn-util/bot/toolbox"
	"fmt"
	"runtime"
	"strings"
	"time"

	"github.com/disgoorg/disgo"
	"github.com/disgoorg/disgo/discord"
	"github.com/disgoorg/disgo/events"
	"github.com/disgoorg/log"
	"github.com/dustin/go-humanize"
	"github.com/mackerelio/go-osstat/cpu"
	"github.com/shirou/gopsutil/v3/mem"
	"github.com/zcalusic/sysinfo"
)

var (
	mainEmbedColor = 0xff69b4 //0xf9c62c - main embed color for the bot (saffron / yellow)
	noPermText     = "You need to have a role with `Manage Server` permission to use this command."
)

func ListenForCommand(e *events.ApplicationCommandInteractionCreate) {
	TRUE := true
	switch name := e.Data.CommandName(); name {
	case "host-stats":
		before, err := cpu.Get()
		if err != nil {
			DumpErrToConsole(err)
			return
		}
		time.Sleep(time.Duration(1) * time.Second)
		after, err := cpu.Get()
		if err != nil {
			DumpErrToConsole(err)
			return
		}
		total := float64(after.Total - before.Total)

		memInfo, _ := mem.VirtualMemory()
		var si sysinfo.SysInfo
		si.GetSysInfo()
		if err := e.CreateMessage(discord.MessageCreate{
			Embeds: []discord.Embed{
				{
					Description: fmt.Sprintf("**OS:** %s\n**CPU:** %s", si.OS.Name, si.CPU.Model),
					Fields: []discord.EmbedField{
						{
							Name:   "CPU Usage",
							Value:  fmt.Sprintf("User: %.1f %%\nSys: %.1f %%", float64(after.User-before.User)/total*100, float64(after.System-before.System)/total*100),
							Inline: &TRUE,
						},
						{
							Name:   "Memory",
							Value:  fmt.Sprintf("Used: %v\nTotal: %v", humanize.IBytes(memInfo.Used), humanize.IBytes(memInfo.Total)),
							Inline: &TRUE,
						},
						{
							Name:   "\u200b",
							Value:  "\u200b",
							Inline: &TRUE,
						},
						{
							Name:   "Version",
							Value:  fmt.Sprintf("Disgo %v\nGo %v", disgo.Version, strings.TrimPrefix(runtime.Version(), "go")),
							Inline: &TRUE,
						},
						{
							Name:   "Goroutines",
							Value:  fmt.Sprintf("%v", runtime.NumGoroutine()),
							Inline: &TRUE,
						},
					},
					Footer: &discord.EmbedFooter{
						Text: fmt.Sprintf("Uptime: %v", toolbox.GetUptime()),
					},
					Color: mainEmbedColor,
				},
			},
		}); err != nil {
			DumpErrToConsole(err)
		}
		break
	case "invite":
		e.CreateMessage(discord.MessageCreate{
			Components: []discord.ContainerComponent{
				discord.ActionRowComponent{
					discord.ButtonComponent{
						Label: "Invite me!",
						Style: discord.ButtonStyleLink,
						URL:   fmt.Sprintf("https://discord.com/api/oauth2/authorize?client_id=%v&permissions=19456&scope=bot", e.Client().ApplicationID()),
					},
				},
			},
		})
		break
	}
}

func DumpErrToConsole(err error) {
	log.Errorf("failed to send interaction response: %v", err.Error())
}

func DumpErrToInteraction(e *events.ApplicationCommandInteractionCreate, err error) {
	if err := e.CreateMessage(discord.MessageCreate{
		Embeds: []discord.Embed{
			{
				Title:       "There was an attempt...",
				Description: fmt.Sprintf("```%v```", err.Error()),
				Color:       0x560000,
			},
		},
	}); err != nil {
		DumpErrToConsole(err)
	}
}

func DumpErrToChannel(e *events.ApplicationCommandInteractionCreate, err error) {
	if _, err := e.Client().Rest().CreateMessage(e.Channel().ID(), discord.MessageCreate{
		Embeds: []discord.Embed{
			{
				Title:       "There was an attempt...",
				Description: fmt.Sprintf("```%v```", err.Error()),
				Color:       0x560000,
			},
		},
	}); err != nil {
		DumpErrToConsole(err)
	}
}

func isGuildManager(e *events.ApplicationCommandInteractionCreate) bool {
	member := e.Member()
	if member.Permissions.Has(discord.PermissionManageGuild) {
		return true
	} else {
		return false
	}
}