// Package cp 定义 CP/兄弟/姐妹关系的领域事实和值对象。
package cp

const (
	RelationTypeCP      = "cp"
	RelationTypeBrother = "brother"
	RelationTypeSister  = "sister"

	ApplicationStatusPending  = "pending"
	ApplicationStatusAccepted = "accepted"
	ApplicationStatusRejected = "rejected"
	ApplicationStatusExpired  = "expired"
	ApplicationStatusBlocked  = "blocked"

	RelationshipStatusActive = "active"
	RelationshipStatusEnded  = "ended"

	GiftTypeCodeCP = "cp"

	EventTypeApplicationCreated          = "UserCPApplicationCreated"
	EventTypeApplicationAccepted         = "UserCPApplicationAccepted"
	EventTypeApplicationRejected         = "UserCPApplicationRejected"
	EventTypeRelationshipCreated         = "UserCPRelationshipCreated"
	EventTypeRelationshipIntimacyChanged = "UserCPRelationshipIntimacyChanged"
	EventTypeRelationshipLevelUp         = "UserCPRelationshipLevelUp"
)

// UserProfile 是 CP 申请和关系展示用的用户快照。
type UserProfile struct {
	UserID        int64
	DisplayUserID string
	Username      string
	Avatar        string
}

// GiftSnapshot 固化触发申请或亲密值增长的礼物展示信息。
type GiftSnapshot struct {
	GiftID           string
	GiftName         string
	GiftIconURL      string
	GiftAnimationURL string
	GiftCount        int32
	GiftValue        int64
	BillingReceiptID string
}

// Application 表达一次关系申请，只有 target 用户可以处理 pending 状态。
type Application struct {
	ApplicationID   string
	RelationType    string
	Status          string
	Requester       UserProfile
	Target          UserProfile
	RoomID          string
	RoomRegionID    int64
	Gift            GiftSnapshot
	CreatedAtMS     int64
	UpdatedAtMS     int64
	ExpiresAtMS     int64
	DecidedAtMS     int64
	SourceEventID   string
	SourceCommandID string
}

// Relationship 表达 A/B 已建立的一种 active 关系；展示时由 service 填充 me/partner。
type Relationship struct {
	RelationshipID      string
	RelationType        string
	Status              string
	UserAID             int64
	UserBID             int64
	Me                  UserProfile
	Partner             UserProfile
	IntimacyValue       int64
	Level               int32
	SourceApplicationID string
	FormedAtMS          int64
	UpdatedAtMS         int64
}

// GiftEvent 是 room outbox 中 RoomGiftSent 转换后的 CP 关系消费输入。
type GiftEvent struct {
	AppCode          string
	EventID          string
	RoomID           string
	RoomVersion      int64
	OccurredAtMS     int64
	SenderUserID     int64
	TargetUserID     int64
	GiftID           string
	GiftCount        int32
	GiftValue        int64
	BillingReceiptID string
	VisibleRegionID  int64
	CommandID        string
	GiftTypeCode     string
	CPRelationType   string
	GiftName         string
	GiftIconURL      string
	GiftAnimationURL string
}

// ConsumeResult 汇总一次送礼事件对 CP 领域产生的变化。
type ConsumeResult struct {
	Consumed     bool
	Application  Application
	Relationship Relationship
}