package cap_servertime

import (
	"strings"

	"tuxpa.in/a/irc/pkg/ircv3"
)

type Capability struct {
	supported bool
}

func (c *Capability) Middleware(next ircv3.Handler) ircv3.Handler {
	return ircv3.HandlerFunc(func(w ircv3.MessageWriter, e *ircv3.Event) {
		if c.supported {
			//	tString := e.Msg.Tags.Get("time")
			//	if tString != "" {
			//		parsedTime, err := time.Parse("2006-01-02T15:04:05.000Z", tString)
			//		if err == nil {
			//			ctx = context.WithValue(ctx, keyServerTime, parsedTime)
			//		}
			//	}
		}
		next.Handle(w, e)
	})
}

func (c *Capability) Handle(w ircv3.MessageWriter, e *ircv3.Event) bool {
	// dont have the capability? nothing to do. registered.
	if e.Msg.Command == "CAP" && e.Msg.Param(0) == "*" && e.Msg.Param(1) == "LS" {
		for _, v := range strings.Fields(e.Msg.Param(2)) {
			if v == "server-time" {
				w.WriteMessage(ircv3.NewMessage("CAP", "REQ", "server-time"))
				return true
			}
		}
	}
	if e.Msg.Command == "CAP" && e.Msg.Param(2) == "server-time" {
		if e.Msg.Param(1) == "ACK" {
			c.supported = true
		} else {
			c.supported = false
		}
	}
	return false
}