package discord

import (
	"fmt"
	"strings"

	"git.birbmc.com/canopeas/config"

	"github.com/bwmarrin/discordgo"
)

func Echo(cfg *config.Config) {
	for _, echo := range cfg.Echoes {
		e := echo // Closure
		commands = append(commands, &command{
			name:    e.Name,
			aliases: e.Aliases,
			child:   true,
			validate: func(cmd commandInit) bool {
				return true
			},
			run: func(cmd commandInit) (string, error) {
				return e.Message, nil
			},
			help: e.Help,
		})
	}

	commands = append(commands, &command{
		deleteInvocation: true,
		name:             "echoes",
		validate: func(cmd commandInit) bool {
			return true
		},
		run: func(cmd commandInit) (string, error) {
			embed := &discordgo.MessageEmbed{
				Title:  "Echo Commands",
				Fields: make([]*discordgo.MessageEmbedField, len(cfg.Echoes)),
			}
			for i, echo := range cfg.Echoes {
				name := echo.Name
				if len(echo.Aliases) > 0 {
					name += fmt.Sprintf(" (%s)", strings.Join(echo.Aliases, ", "))
				}
				embed.Fields[i] = &discordgo.MessageEmbedField{
					Name:   name,
					Value:  echo.Help,
					Inline: true,
				}
			}

			channel, err := cmd.session.UserChannelCreate(cmd.message.Author.ID)
			if err != nil {
				return "", err
			}

			sendEmbed(cmd.session, channel.ID, embed)
			return "", nil
		},
		help: "Get all dynamic messages",
	})
}