package model

import "time"

// UserInvitation 用户邀请绑定关系表
type UserInvitation struct {
	ID                 uint64     `gorm:"primaryKey" json:"id"`
	InviterID          uint64     `gorm:"not null;index:idx_user_invitations_inviter" json:"inviter_id"`
	InviteeID          uint64     `gorm:"not null;uniqueIndex:uk_user_invitations_invitee" json:"invitee_id"`
	DistributionSiteID uint64     `gorm:"not null;default:0" json:"distribution_site_id"`
	InviteCode         string     `gorm:"size:32;not null;default:''" json:"invite_code"`
	Status             string     `gorm:"size:32;not null;default:'pending';index:idx_user_invitations_inviter" json:"status"` // pending/active/invalid
	VerifiedAt         *time.Time `json:"verified_at,omitempty"`
	CreatedAt          time.Time  `json:"created_at"`
	UpdatedAt          time.Time  `json:"updated_at"`
}

func (UserInvitation) TableName() string {
	return "user_invitations"
}

// InvitationRebateConfig 邀请返利比例配置表（主站或分销站点）
type InvitationRebateConfig struct {
	ID                 uint64    `gorm:"primaryKey" json:"id"`
	DistributionSiteID uint64    `gorm:"not null;uniqueIndex:uk_invitation_rebate_configs_site" json:"distribution_site_id"` // 0=主站
	FirstMonthRate     float64   `gorm:"type:decimal(6,4);not null;default:0.6000" json:"first_month_rate"`
	SecondMonthRate    float64   `gorm:"type:decimal(6,4);not null;default:0.3000" json:"second_month_rate"`
	SubsequentRate     float64   `gorm:"type:decimal(6,4);not null;default:0.1500" json:"subsequent_rate"`
	Enabled            bool      `gorm:"not null" json:"enabled"`
	CreatedAt          time.Time `json:"created_at"`
	UpdatedAt          time.Time `json:"updated_at"`
}

func (InvitationRebateConfig) TableName() string {
	return "invitation_rebate_configs"
}

// InvitationRebateLedger 邀请返利结算记录明细表
type InvitationRebateLedger struct {
	ID                   uint64    `gorm:"primaryKey" json:"id"`
	OrderID              uint64    `gorm:"not null;uniqueIndex:uk_invitation_rebate_source_role,priority:2" json:"order_id"`
	OrderNo              string    `gorm:"size:64;not null" json:"order_no"`
	Source               string    `gorm:"size:32;not null;default:'rental_order';uniqueIndex:uk_invitation_rebate_source_role,priority:1" json:"source"` // rental_order / pickup
	DistributionSiteID   uint64    `gorm:"not null;default:0;index:idx_invitation_rebate_site" json:"distribution_site_id"`
	InviterID            uint64    `gorm:"not null;index:idx_invitation_rebate_inviter" json:"inviter_id"`
	InviteeID            uint64    `gorm:"not null" json:"invitee_id"`
	TradeRole            string    `gorm:"size:16;not null;uniqueIndex:uk_invitation_rebate_source_role,priority:3" json:"trade_role"` // buyer / seller
	OrderProfitBasisCent int64     `gorm:"not null;default:0" json:"order_profit_basis_cent"`
	SingleSideBasisCent  int64     `gorm:"not null;default:0" json:"single_side_basis_cent"`
	RateApplied          float64   `gorm:"type:decimal(6,4);not null;default:0" json:"rate_applied"`
	DaysSinceVerified    int       `gorm:"not null;default:0" json:"days_since_verified"`
	CycleStage           string    `gorm:"size:32;not null;default:''" json:"cycle_stage"` // first_month / second_month / subsequent
	RebateAmountCent     int64     `gorm:"not null;default:0" json:"rebate_amount_cent"`
	WalletLedgerNo       string    `gorm:"size:64;not null;default:''" json:"wallet_ledger_no"`
	Status               string    `gorm:"size:32;not null;default:'settled'" json:"status"` // settled / cancelled
	SettledAt            time.Time `gorm:"index:idx_invitation_rebate_inviter;index:idx_invitation_rebate_site" json:"settled_at"`
	CreatedAt            time.Time `json:"created_at"`
	UpdatedAt            time.Time `json:"updated_at"`
}

func (InvitationRebateLedger) TableName() string {
	return "invitation_rebate_ledgers"
}