package main

import (
	"strings"

	"github.com/lyx0/nourybot-matrix/pkg/commands"
	"maunium.net/go/mautrix/event"
)

func (app *application) ParseCommand(evt *event.Event) {
	var reply string
	// commandName is the actual name of the command without the prefix.
	// e.g. `!ping` would be `ping`.
	commandName := strings.ToLower(strings.SplitN(evt.Content.AsMessage().Body, " ", 2)[0][1:])

	// cmdParams are additional command parameters.
	// e.g. `!weather san antonio`
	// cmdParam[0] is `san` and cmdParam[1] = `antonio`.
	cmdParams := strings.SplitN(evt.Content.AsMessage().Body, " ", 500)
	app.Log.Info().Msgf("cmdParams: %s", cmdParams)

	// msgLen is the amount of words in a message without the prefix.
	// Useful to check if enough cmdParams are provided.
	msgLen := len(strings.SplitN(evt.Content.AsMessage().Body, " ", -1))

	app.Log.Info().Msgf("Command: %s", evt.Content.AsMessage().Body)

	//message := evt.Content.AsMessage().Body
	switch commandName {
	case "xd":
		app.SendText(evt, "xd !")
		return

	case "currency":
		if msgLen <= 4 {
			reply = "Not enough arguments provided. Usage: ()currency 10 USD to EUR"
		} else {
			reply, _ = commands.Currency(cmdParams[1], cmdParams[2], cmdParams[4])
		}
	case "gofile":
		if msgLen < 2 {
			reply = "Not enough arguments provided. Usage: !gofile [link]"
		} else {
			app.NewDownload("gofile", evt, cmdParams[1])
			return
		}

	case "lastfm":
		if msgLen == 1 {
			reply = "Not enough arguments provided. Usage: ()lastfm <username>"
		} else {
			reply = commands.LastFmUserRecent(cmdParams[1], app.Log)
		}

	case "phonetic":
		if msgLen == 1 {
			reply = "Not enough arguments provided. Usage: ()phonetic <text to translate>"
		} else {
			reply, _ = commands.Phonetic(evt.Content.AsMessage().Body[10:len(evt.Content.AsMessage().Body)])
		}

	case "preview":
		if msgLen < 2 {
			reply = "Not enough arguments provided. Usage: !preview [stream]"
		} else {
			reply = commands.Preview(cmdParams[1])
		}

	case "weather":
		if msgLen < 2 {
			reply = "Not enough arguments provided. Usage: !weather [location]"
		} else {
			reply, _ = commands.Weather(evt.Content.AsMessage().Body[9:len(evt.Content.AsMessage().Body)])
		}

	case "yaf":
		if msgLen < 2 {
			reply = "Not enough arguments provided. Usage: !gofile [link]"
		} else {
			app.NewDownload("yaf", evt, cmdParams[1])
			return
		}

	case "conv":
		if msgLen < 2 {
			reply = "Not enough arguments provided. Usage: !gofile [link]"
		} else {
			app.ConvertToMP4(evt, cmdParams[1])
			return
		}

	case "wa":
		if msgLen < 2 {
			reply = "Not enough arguments provided. Usage: !wa [query]"
		} else {
			reply = commands.WolframAlphaQuery(evt.Content.AsMessage().Body[4:len(evt.Content.AsMessage().Body)])
		}

	}
	if reply != "" {
		app.SendText(evt, reply)
	}
}