package api

import (
	"github.com/diamondburned/arikawa/discord"
	"github.com/diamondburned/arikawa/utils/httputil"
	"github.com/diamondburned/arikawa/utils/json/option"
)

var EndpointInvites = Endpoint + "invites/"

// Invite returns an invite object for the given code.
func (c *Client) Invite(code string) (*discord.Invite, error) {
	var params struct {
		WithCounts bool `schema:"with_counts,omitempty"`
	}

	// Nothing says I can't!
	params.WithCounts = true

	var inv *discord.Invite
	return inv, c.RequestJSON(
		&inv, "GET",
		EndpointInvites+code,
		httputil.WithSchema(c, params),
	)
}

// ChannelInvites returns a list of invite objects (with invite metadata) for
// the channel. Only usable for guild channels.
//
// Requires the MANAGE_CHANNELS permission.
func (c *Client) ChannelInvites(channelID discord.Snowflake) ([]discord.Invite, error) {
	var invs []discord.Invite
	return invs, c.RequestJSON(&invs, "GET",
		EndpointChannels+channelID.String()+"/invites")
}

// GuildInvites returns a list of invite objects (with invite metadata) for the
// guild.
//
// Requires the MANAGE_GUILD permission.
func (c *Client) GuildInvites(guildID discord.Snowflake) ([]discord.Invite, error) {
	var invs []discord.Invite
	return invs, c.RequestJSON(&invs, "GET",
		EndpointGuilds+guildID.String()+"/invites")
}

// https://discord.com/developers/docs/resources/channel#create-channel-invite-json-params
type CreateInviteData struct {
	// MaxAge is the duration of invite in seconds before expiry, or 0 for
	// never.
	//
	// Default:	86400 (24 hours)
	MaxAge option.Uint `json:"max_age,omitempty"`
	// MaxUses is the max number of uses or 0 for unlimited.
	//
	// Default:	0
	MaxUses uint `json:"max_uses,omitempty"`
	// Temporary specifies whether this invite only grants temporary membership.
	//
	// Default:	false
	Temporary bool `json:"temporary,omitempty"`
	// Unique has the following behavior: if true, don't try to reuse a similar
	// invite (useful for creating many unique one time use invites).
	//
	// Default:	false
	Unique bool `json:"unique,omitempty"`
}

// CreateInvite creates a new invite object for the channel. Only usable for
// guild channels.
//
// Requires the CREATE_INSTANT_INVITE permission.
func (c *Client) CreateInvite(
	channelID discord.Snowflake, data CreateInviteData) (*discord.Invite, error) {
	var inv *discord.Invite
	return inv, c.RequestJSON(
		&inv, "POST",
		EndpointChannels+channelID.String()+"/invites",
		httputil.WithJSONBody(data),
	)
}

// DeleteInvite deletes a channel permission overwrite for a user or role in a
// channel. Only usable for guild channels.
//
// Requires the MANAGE_ROLES permission.
func (c *Client) DeleteInvite(code string) (*discord.Invite, error) {
	var inv *discord.Invite
	return inv, c.RequestJSON(&inv, "DELETE", EndpointInvites+code)
}