package eventsub

import "time"

type Condition map[string]any

type Subscription struct {
	// An ID that identifies the subscription.
	ID string `json:"id"`

	// The subscription’s status. The subscriber receives events only for enabled subscriptions. Possible values are:
	//
	// enabled — The subscription is enabled.
	//
	// webhook_callback_verification_pending — The subscription is pending verification of the specified callback URL (see Responding to a challenge request).
	Status string `json:"status"`

	// The subscription’s type.
	// See Subscription Types: https://dev.twitch.tv/docs/eventsub/eventsub-subscription-types#subscription-types
	Type string `json:"type"`

	// The version number that identifies this definition of the subscription’s data.
	Version string `json:"version"`

	// The subscription’s parameter values. This is a string-encoded JSON object whose contents are determined by the subscription type.
	Condition Condition `json:"condition"`

	// The date and time (in RFC3339 format) of when the subscription was created.
	CreatedAt time.Time `json:"created_at"`

	// The transport details used to send the notifications.
	Transport *Transport `json:"transport"`

	// The amount that the subscription counts against your limit.
	// Learn More: https://dev.twitch.tv/docs/eventsub/manage-subscriptions/#subscription-limits
	Cost int `json:"cost"`
}

type Status string

const (
	// enabled — The subscription is enabled.
	StatusEnabled = "enabled"

	// webhook_callback_verification_pending — The subscription is pending verification of the specified callback URL.
	StatusWebhookCallbackVerificationPending = "webhook_callback_verification_pending"

	// webhook_callback_verification_failed — The specified callback URL failed verification.
	StatusWebhookCallbackVerificationFailed = "webhook_callback_verification_failed"

	// notification_failures_exceeded — The notification delivery failure rate was too high.
	NotificationFailuresExceeded = "notification_failures_exceeded"

	// authorization_revoked — The authorization was revoked for one or more users specified in the Condition object.
	AuthorizationRevoked = "authorization_revoked"

	// moderator_removed — The moderator that authorized the subscription is no longer one of the broadcaster's moderators.
	ModeratorRemoved = "moderator_removed"

	// user_removed — One of the users specified in the Condition object was removed.
	UserRemoved = "user_removed"

	// version_removed — The subscription to subscription type and version is no longer supported.
	VersionRemoved = "version_removed"

	// beta_maintenance — The subscription to the beta subscription type was removed due to maintenance.
	BetaMaintenance = "beta_maintenance"

	// websocket_disconnected — The client closed the connection.
	WebsocketDisconnected = "websocket_disconnected"

	// websocket_failed_ping_pong — The client failed to respond to a ping message.
	WebsocketFailedPingPong = "websocket_failed_ping_pong"

	// websocket_received_inbound_traffic — The client sent a non-pong message.
	// Clients may only send pong messages (and only in response to a ping message).
	WebsocketReceivedInboundTraffic = "websocket_received_inbound_traffic"

	// websocket_connection_unused — The client failed to subscribe to events within the required time.
	WebsocketConnectionUnused = "websocket_connection_unused"

	// websocket_internal_error — The Twitch WebSocket server experienced an unexpected error.
	WebsocketInternalError = "websocket_internal_error"

	// websocket_network_timeout — The Twitch WebSocket server timed out writing the message to the client.
	WebsocketNetworkTimeout = "websocket_network_timeout"

	// websocket_network_error — The Twitch WebSocket server experienced a network error writing the message to the client.
	WebsocketnetworkError = "websocket_network_error"
)

type Transport struct {
	// The transport method. Possible values are:
	//
	// webhook, websocket, conduit
	Method string `json:"method"`

	// The callback URL where the notifications are sent. The URL must use the HTTPS protocol and port 443.
	// See Processing an event. Specify this field only if method is set to webhook.
	//
	// NOTE: Redirects are not followed.
	Callback *string `json:"callback,omitempty"`

	// The secret used to verify the signature.
	// The secret must be an ASCII string that’s a minimum of 10 characters long and a maximum of 100 characters long.
	// For information about how the secret is used,
	// see Verifying the event message: https://dev.twitch.tv/docs/eventsub/handling-webhook-events#verifying-the-event-message
	// Specify this field only if method is set to webhook.
	Secret *string `json:"secret,omitempty"`

	// An ID that identifies the WebSocket to send notifications to. When you connect to EventSub using WebSockets,
	// the server returns the ID in the Welcome message. Specify this field only if method is set to websocket.
	SessionID *string `json:"session_id,omitempty"`

	// An ID that identifies the conduit to send notifications to.
	// When you create a conduit, the server returns the conduit ID.
	// Specify this field only if method is set to conduit.
	ConduitID *string `json:"conduit_id,omitempty"`
}

func WebhookTransport(callback string, secret string) *Transport {
	return &Transport{
		Method:    "webhook",
		Callback:  &callback,
		Secret:    &secret,
		SessionID: nil,
		ConduitID: nil,
	}
}

func WebSocketTransport(sessionID string) *Transport {
	return &Transport{
		Method:    "websocket",
		Callback:  nil,
		Secret:    nil,
		SessionID: &sessionID,
		ConduitID: nil,
	}
}

func ConduitTransport(conduitID string) *Transport {
	return &Transport{
		Method:    "websocket",
		Callback:  nil,
		Secret:    nil,
		SessionID: nil,
		ConduitID: &conduitID,
	}
}

type SubscriptionType struct {
	// The type of subscription.
	Name string `json:"type"`

	// The version number that identifies the definition of the subscription type that you want the response to use.
	Version string `json:"version"`
}

var (
	ChannelUpdate                             = SubscriptionType{Name: "channel.update", Version: "2"}
	ChannelFollow                             = SubscriptionType{Name: "channel.follow", Version: "2"}
	ChannelAdBreakBegin                       = SubscriptionType{Name: "channel.ad_break_begin", Version: "1"}
	ChannelChatClear                          = SubscriptionType{Name: "channel.chat.clear", Version: "1"}
	ChannelChatClearUserMessages              = SubscriptionType{Name: "channel.chat.clear_user_messages", Version: "1"}
	ChannelChatMessage                        = SubscriptionType{Name: "channel.chat.message", Version: "1"}
	ChannelChatMessageDelete                  = SubscriptionType{Name: "channel.chat.message_delete", Version: "1"}
	ChannelChatNotification                   = SubscriptionType{Name: "channel.chat.notification", Version: "1"}
	ChannelChatSettingsUpdate                 = SubscriptionType{Name: "channel.chat_settings.update", Version: "beta"}
	ChannelSubscribe                          = SubscriptionType{Name: "channel.subscribe", Version: "1"}
	ChannelSubscriptionEnd                    = SubscriptionType{Name: "channel.subscription.end", Version: "1"}
	ChannelSubscriptionGift                   = SubscriptionType{Name: "channel.subscription.gift", Version: "1"}
	ChannelSubscriptionMessage                = SubscriptionType{Name: "channel.subscription.message", Version: "1"}
	ChannelCheer                              = SubscriptionType{Name: "channel.cheer", Version: "1"}
	ChannelRaid                               = SubscriptionType{Name: "channel.raid", Version: "1"}
	ChannelBan                                = SubscriptionType{Name: "channel.ban", Version: "1"}
	ChannelUnban                              = SubscriptionType{Name: "channel.unban", Version: "1"}
	ChannelModeratorAdd                       = SubscriptionType{Name: "channel.moderator.add", Version: "1"}
	ChannelModeratorRemove                    = SubscriptionType{Name: "channel.moderator.remove", Version: "1"}
	ChannelGuestStarSessionBegin              = SubscriptionType{Name: "channel.guest_star_session.begin", Version: "beta"}
	ChannelGuestStarSessionEnd                = SubscriptionType{Name: "channel.guest_star_session.end", Version: "beta"}
	ChannelGuestStarGuestUpdate               = SubscriptionType{Name: "channel.guest_star_guest.update", Version: "beta"}
	ChannelGuestStarSettingsUpdate            = SubscriptionType{Name: "channel.guest_star_settings.update", Version: "beta"}
	ChannelPointsCustomRewardAdd              = SubscriptionType{Name: "channel.channel_points_custom_reward.add", Version: "1"}
	ChannelPointsCustomRewardUpdate           = SubscriptionType{Name: "channel.channel_points_custom_reward.update", Version: "1"}
	ChannelPointsCustomRewardRemove           = SubscriptionType{Name: "channel.channel_points_custom_reward.remove", Version: "1"}
	ChannelPointsCustomRewardRedemptionAdd    = SubscriptionType{Name: "channel.channel_points_custom_reward_redemption.add", Version: "1"}
	ChannelPointsCustomRewardRedemptionUpdate = SubscriptionType{Name: "channel.channel_points_custom_reward_redemption.update", Version: "1"}
	ChannelPollBegin                          = SubscriptionType{Name: "channel.poll.begin", Version: "1"}
	ChannelPollProgress                       = SubscriptionType{Name: "channel.poll.progress", Version: "1"}
	ChannelPollEnd                            = SubscriptionType{Name: "channel.poll.end", Version: "1"}
	ChannelPredictionBegin                    = SubscriptionType{Name: "channel.prediction.begin", Version: "1"}
	ChannelPredictionProgress                 = SubscriptionType{Name: "channel.prediction.progress", Version: "1"}
	ChannelPredictionLock                     = SubscriptionType{Name: "channel.prediction.lock", Version: "1"}
	ChannelPredictionEnd                      = SubscriptionType{Name: "channel.prediction.end", Version: "1"}
	CharityCampaignDonate                     = SubscriptionType{Name: "channel.charity_campaign.donate", Version: "1"}
	CharityCampaignStart                      = SubscriptionType{Name: "channel.charity_campaign.start", Version: "1"}
	CharityCampaignProgress                   = SubscriptionType{Name: "channel.charity_campaign.progress", Version: "1"}
	CharityCampaignStop                       = SubscriptionType{Name: "channel.charity_campaign.stop", Version: "1"}
	ConduitShardDisabled                      = SubscriptionType{Name: "conduit.shard.disabled", Version: "1"}
	DropEntitlementGrant                      = SubscriptionType{Name: "drop.entitlement.grant", Version: "1"}
	ExtensionBitsTransactionCreate            = SubscriptionType{Name: "extension.bits.transaction.create", Version: "1"}
	GoalBegin                                 = SubscriptionType{Name: "goal.begin", Version: "1"}
	GoalProgress                              = SubscriptionType{Name: "goal.progress", Version: "1"}
	GoalEnd                                   = SubscriptionType{Name: "goal.end", Version: "1"}
	HypeTrainBegin                            = SubscriptionType{Name: "hype_train.begin", Version: "1"}
	HypeTrainProgress                         = SubscriptionType{Name: "hype_train.progress", Version: "1"}
	HypeTrainEnd                              = SubscriptionType{Name: "hype_train.end", Version: "1"}
	ShieldModeBegin                           = SubscriptionType{Name: "shield_mode.begin", Version: "1"}
	ShieldModeEnd                             = SubscriptionType{Name: "shield_mode.end", Version: "1"}
	ShoutoutCreate                            = SubscriptionType{Name: "shoutout.create", Version: "1"}
	ShoutoutReceived                          = SubscriptionType{Name: "shoutout.received", Version: "1"}
	StreamOnline                              = SubscriptionType{Name: "stream.online", Version: "1"}
	StreamOffline                             = SubscriptionType{Name: "stream.offline", Version: "1"}
	UserAuthorizationGrant                    = SubscriptionType{Name: "user.authorization.grant", Version: "1"}
	UserAuthorizationRevoke                   = SubscriptionType{Name: "user.authorization.revoke", Version: "1"}
	UserUpdate                                = SubscriptionType{Name: "user.update", Version: "1"}
)