package commands

import (
	"fmt"
	"time"

	"github.com/disgoorg/disgo/discord"
	"github.com/disgoorg/disgo/handler"
)

func PingHandler(e *handler.CommandEvent) error {

	now := time.Now()
	latency := now.Sub(e.CreatedAt())
	msLatency := latency.Milliseconds()
	if msLatency < 0 {
		msLatency = -msLatency
	}

	// Gateway latency
	var gwMs int64
	if gw := e.Client().Gateway(); gw != nil {
		gwMs = gw.Latency().Milliseconds()
	} else {
		gwMs = 0
	}

	lat := float64(msLatency)
	if lat > 1500 {
		lat = 1500
	}
	red := int((lat / 1500) * 255)
	green := 255 - red
	color := (red << 16) | (green << 8)

	embed := discord.NewEmbedBuilder().
		SetTitle("🏓 Pong!").
		AddField("Interaction latency", fmt.Sprintf("%d ms", msLatency), true).
		AddField("Gateway latency", fmt.Sprintf("%d ms", gwMs), true).
		SetColor(color).
		Build()

	return e.CreateMessage(
		discord.NewMessageCreateBuilder().
			SetEmbeds(embed).
			Build(),
	)
}