package fcm

// Message to send by Firebase Cloud Messaging Service.
// https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages#resource:-message
type Message struct {
	// Union field target can be only one of the following:
	Token     string `json:"token,omitempty"`
	Topic     string `json:"topic,omitempty"`
	Condition string `json:"condition,omitempty"`
	// End of list of possible types for union field target.

	Data         map[string]string `json:"data,omitempty"`
	Notification *Notification     `json:"notification,omitempty"`
	FcmOptions   *FcmOptions       `json:"fcm_options,omitempty"`
	Android      *AndroidConfig    `json:"android,omitempty"`
	Webpush      *WebpushConfig    `json:"webpush,omitempty"`
	Apns         *ApnsConfig       `json:"apns,omitempty"`
}

// Basic notification template to use across all platforms.
// https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages#notification
type Notification struct {
	Title string `json:"title,omitempty"`
	Body  string `json:"body,omitempty"`
	Image string `json:"image,omitempty"`
}

type FcmOptions struct {
	// Label associated with the message's analytics data.
	//   Format: ^[a-zA-Z0-9-_.~%]{1,50}$
	AnalyticsLabel string `json:"analytics_label,omitempty"`
}

type AndroidConfig struct {
	CollapseKey           string                 `json:"collapse_key,omitempty"`
	Priority              AndroidMessagePriority `json:"priority,omitempty"`
	TTL                   string                 `json:"ttl,omitempty"`
	RestrictedPackageName string                 `json:"restricted_package_name,omitempty"`
	Data                  map[string]string      `json:"data,omitempty"`
	Notification          *AndroidNotification   `json:"notification,omitempty"`
	FcmOptions            *AndroidFcmOptions     `json:"fcm_options,omitempty"`
	DirectBootOk          bool                   `json:"direct_boot_ok,omitempty"`
}

type AndroidMessagePriority uint8

const (
	// Default priority for data messages.
	//
	// Normal priority messages won't open network connections on a sleeping device,
	// and their delivery may be delayed to conserve the battery.
	AndroidMessagePriority_NORMAL AndroidMessagePriority = 0

	// Default priority for notification messages.
	//
	// FCM attempts to deliver high priority messages immediately,
	// allowing the FCM service to wake a sleeping device when possible
	// and open a network connection to your app server.
	AndroidMessagePriority_HIGH AndroidMessagePriority = 1
)

type AndroidFcmOptions struct {
	AnalyticsLabel string `json:"analytics_label,omitempty"`
}

type NotificationPriority uint8

const (
	NotificationPriority_UNSPECIFIED NotificationPriority = 0

	// Notifications might not be shown to the user except under special circumstances, such as detailed notification logs.
	NotificationPriority_MIN NotificationPriority = 1

	// The UI may choose to show the notifications smaller, or at a different position in the list, compared with notifications with DEFAULT.
	NotificationPriority_LOW NotificationPriority = 2

	// If the application does not prioritize its own notifications, use this value for all notifications.
	NotificationPriority_DEFAULT NotificationPriority = 3

	// Use this for more important notifications or alerts.
	//
	// The UI may choose to show these notifications larger, or at a different position in the notification lists, compared with notifications with DEFAULT.
	NotificationPriority_HIGH NotificationPriority = 4

	// Use this for the application's most important items that require the user's prompt attention or input.
	NotificationPriority_MAX NotificationPriority = 5
)

type NotificationVisibility uint8

const (
	NotificationVisibility_UNSPECIFIED NotificationVisibility = 0

	// Show this notification on all lockscreens, but conceal sensitive or private information on secure lockscreens.
	NotificationVisibility_PRIVATE NotificationVisibility = 1

	// Show this notification in its entirety on all lockscreens.
	NotificationVisibility_PUBLIC NotificationVisibility = 2

	// Do not reveal any part of this notification on a secure lockscreen.
	NotificationVisibility_SECRET NotificationVisibility = 3
)

type LightSettings struct {
	Color       Color  `json:"color,omitempty"`
	OnDuration  string `json:"light_on_duration,omitempty"`
	OffDuration string `json:"light_off_duration,omitempty"`
}

type Color struct {
	Red   float32 `json:"red,omitempty"`
	Green float32 `json:"green,omitempty"`
	Blue  float32 `json:"blue,omitempty"`
	Alpha float32 `json:"alpha,omitempty"`
}

type AndroidNotification struct {
	Title                    string                 `json:"title,omitempty"`
	Body                     string                 `json:"body,omitempty"`
	Image                    string                 `json:"image,omitempty"`
	Icon                     string                 `json:"icon,omitempty"`
	Color                    string                 `json:"color,omitempty"`
	Sound                    string                 `json:"sound,omitempty"`
	Tag                      string                 `json:"tag,omitempty"`
	ClickAction              string                 `json:"click_action,omitempty"`
	ChannelID                string                 `json:"channel_id,omitempty"`
	BodyLocalizationKey      string                 `json:"body_loc_key,omitempty"`
	BodyLocalizationArgs     []string               `json:"body_loc_args,omitempty"`
	TitleLocalizationKey     string                 `json:"title_loc_key,omitempty"`
	TitleLocalizationArgs    []string               `json:"title_loc_args,omitempty"`
	Ticker                   string                 `json:"ticker,omitempty"`
	Sticky                   bool                   `json:"sticky,omitempty"`
	EventTime                string                 `json:"event_time,omitempty"`
	LocalOnly                bool                   `json:"local_only,omitempty"`
	Priority                 NotificationPriority   `json:"notification_priority,omitempty"`
	UseDefaultSound          bool                   `json:"default_sound,omitempty"`
	UseDefaultVibrateTimings bool                   `json:"default_vibrate_timings,omitempty"`
	UseDefaultLightSettings  bool                   `json:"default_light_settings,omitempty"`
	VibrateTimings           []string               `json:"vibrate_timings,omitempty"`
	Visibility               NotificationVisibility `json:"visibility,omitempty"`
	Count                    int                    `json:"notification_count,omitempty"`
	LightSettings            *LightSettings         `json:"light_settings,omitempty"`
}

type WebpushConfig struct {
	Headers      map[string]string   `json:"headers,omitempty"`
	Data         map[string]string   `json:"data,omitempty"`
	Notification WebpushNotification `json:"notification,omitempty"`
	FcmOptions   WebpushFcmOptions   `json:"fcm_options,omitempty"`
}

type WebpushNotification struct{}

type WebpushFcmOptions struct {
	Link           string `json:"link,omitempty"`
	AnalyticsLabel string `json:"analytics_label,omitempty"`
}

// Apple specific options for message
type ApnsConfig struct {
	Headers      *ApnsHeaders    `json:"headers,omitempty"`
	Notification *ApnsPayload    `json:"payload,omitempty"`
	FcmOptions   *ApnsFcmOptions `json:"fcm_options,omitempty"`
}

type ApnsHeaders struct {
	PushType   string `json:"apns-push-type,omitempty"`
	Id         string `json:"apns-id,omitempty"`
	Expiration int64  `json:"apns-expiration,omitempty"`
	Priority   uint8  `json:"apns-priority,omitempty"`
	Topic      string `json:"apns-topic,omitempty"`
	CollapseId string `json:"apns-collapse-id,omitempty"`
}

type ApnsPayload struct {
	Aps ApnsPayloadKeys `json:"aps"`

	// TODO: add support for custom keys
	// https://developer.apple.com/documentation/usernotifications/generating-a-remote-notification
	customKeys map[string]any
}

type ApnsPayloadKeys struct {
	Alert             *ApnsAlert `json:"alert,omitempty"`
	Badge             int        `json:"badge,omitempty"`
	Sound             string     `json:"sound,omitempty"`
	ThreadId          string     `json:"thread-id,omitempty"`
	Category          string     `json:"category,omitempty"`
	ContentAvailable  int        `json:"content-available,omitempty"`
	MutableContent    int        `json:"mutable-content,omitempty"`
	TargetContentId   string     `json:"target-content-id,omitempty"`
	InterruptionLevel string     `json:"interruption-level,omitempty"`
	RelevanceScore    int        `json:"relevance-score,omitempty"`

	CriticalSound *ApnsCriticalSound `json:"-"`
}

type ApnsAlert struct {
	Title           string   `json:"title,omitempty"`
	Subtitle        string   `json:"subtitle,omitempty"`
	Body            string   `json:"body,omitempty"`
	LaunchImg       string   `json:"launch-image,omitempty"`
	TitleLocKey     string   `json:"title-loc-key,omitempty"`
	TitleLocArgs    []string `json:"title-loc-args,omitempty"`
	SubtitleLocKey  string   `json:"subtitle-loc-key,omitempty"`
	SubtitleLocArgs []string `json:"subtitle-loc-args,omitempty"`
	LocKey          string   `json:"loc-key,omitempty"`
	LocArgs         []string `json:"loc-args,omitempty"`
}

type ApnsCriticalSound struct {
	Critical int    `json:"critical,omitempty"`
	Name     string `json:"name,omitempty"`
	Volume   int    `json:"volume,omitempty"`
}

type ApnsFcmOptions struct {
	AnalyticsLabel string `json:"analytics_label,omitempty"`
	Image          string `json:"image,omitempty"`
}