package commands

import (
	"fmt"
	"strings"

	"github.com/bwmarrin/discordgo"

	"gitea.teamortix.com/chanbakjsd/Milen/util"
)

type command struct {
	Name            string
	Usage           string
	Processor       func(*discordgo.Session, *discordgo.MessageCreate, []string)
	MinimumArgument int
	ExactArgument   bool
}

var commands = []command{
	command{"autorole", "<message link> <emoji> <role to assign>", handleAutorole, 3, true},
	command{"recalclevel", "", handleRecalculateLevel, 0, false},
	command{"level", "", handleLevel, 0, false},
}

func Event(dg *discordgo.Session, m *discordgo.MessageCreate) {
	if m.Author.Bot {
		return
	}

	defer func() {
		if r := recover(); r != nil {
			// Oh crap. We recovered from a panic.
			util.SendFailEmbed(
				dg, m.ChannelID, "Error",
				"A fatal error has occurred while processing this command. This event has been reported.",
			)
			if val, ok := r.(error); ok {
				util.ReportError(dg, val)
			} else {
				util.ReportError(dg, fmt.Errorf("%T: %v", r, r))
			}
		}
	}()

	split := strings.Split(m.Content, " ")

	prefix := strings.ToLower(split[0])
	if prefix != "milen," && prefix != "milen" {
		return
	}
	if len(split) == 1 {
		util.SendFailEmbed(dg, m.ChannelID, ":(", "Did you just call me out for no reason? Please specify what you want me to do.")
		return
	}
	for _, v := range commands {
		if split[1] != v.Name {
			continue
		}
		if (v.ExactArgument && len(split) != v.MinimumArgument+2) || (!v.ExactArgument && len(split) < v.MinimumArgument+2) {
			util.SendFailEmbed(dg, m.ChannelID, "Incorrect Usage", "Usage: `milen "+v.Name+" "+v.Usage+"`")
			return
		}
		if len(split) == 2 {
			v.Processor(dg, m, []string{})
			return
		}
		v.Processor(dg, m, split[2:])
		return
	}
	handleMacro(dg, m, split[1:])
}