package lib

import (
	"os"
	"strings"

	"github.com/diamondburned/arikawa/v3/discord"
)

// Userish is an interface that captures the common methods you may want to call
// on either a discord.Member or discord.User, including a display name.
type Userish interface {
	ID() discord.UserID
	Username() string
	DisplayName() string // The added method for getting the display name
}

// memberUser adapts a discord.Member to the Userish interface.
type memberUser struct {
	*discord.Member
}

func (mu memberUser) ID() discord.UserID {
	return mu.User.ID
}

func (mu memberUser) Username() string {
	return mu.User.Username
}

func (mu memberUser) DisplayName() string {
	// If Nick is set, return it as the display name, otherwise return Username
	if mu.Member.Nick != "" {
		return mu.Member.Nick
	}
	return mu.User.Username
}

// directUser adapts a discord.User to the Userish interface.
type directUser struct {
	*discord.User
}

func (du directUser) ID() discord.UserID {
	return du.User.ID
}

func (du directUser) Username() string {
	return du.User.Username
}

func (du directUser) DisplayName() string {
	// For a direct user, the display name is just the username since no nickname is available.
	return du.User.Username
}

// GetUserObject takes an interaction event and returns a Userish, which may be
// either a discord.Member or a discord.User, but exposes it through a consistent interface.
func GetUserObject(event discord.InteractionEvent) Userish {
	if event.Member != nil {
		return memberUser{event.Member}
	} else {
		return directUser{event.User}
	}
}

func CooldownHandler(event discord.InteractionEvent) bool {
	user := GetUserObject(event)
	allowList := strings.Split(os.Getenv("COOLDOWN_ALLOW_LIST"), ",")

	// Check if the user ID is in the allowList
	for _, id := range allowList {
		if id == user.ID().String() {
			return true
		}
	}

	cachedVal := GetCache(user.ID().String() + ":" + "hdpic")
	if cachedVal != "nil" {
		return false
	}
	SetCache(user.ID().String()+":"+"hdpic", user.ID().String()+":"+"hdpic", 10)
	return true
}