package dto

// PlanCreate 创建定价计划请求 // Logan.Li
type PlanCreate struct {
	ProductID  uint     `json:"product_id" binding:"required"`
	Name       string   `json:"name" binding:"required"`
	PlanType   string   `json:"plan_type" binding:"required"` // perpetual / monthly / yearly / lifetime
	Price      float64  `json:"price" binding:"required"`
	Currency   string   `json:"currency"`
	Duration   int      `json:"duration"`
	MaxDevices int      `json:"max_devices"`
	Features   []string `json:"features"`
	SortOrder  int      `json:"sort_order"`
	Status     *int     `json:"status"`
}

// PlanUpdate 更新定价计划请求 // Logan.Li
type PlanUpdate struct {
	Name       string   `json:"name"`
	Price      *float64 `json:"price"`
	Currency   string   `json:"currency"`
	Duration   *int     `json:"duration"`
	MaxDevices *int     `json:"max_devices"`
	Features   []string `json:"features"`
	SortOrder  *int     `json:"sort_order"`
	Status     *int     `json:"status"`
}

// PlanResponse 定价计划响应 // Logan.Li
type PlanResponse struct {
	ID         uint     `json:"id"`
	ProductID  uint     `json:"product_id"`
	Name       string   `json:"name"`
	PlanType   string   `json:"plan_type"`
	Price      float64  `json:"price"`
	Currency   string   `json:"currency"`
	Duration   int      `json:"duration"`
	MaxDevices int      `json:"max_devices"`
	Features   []string `json:"features"`
	SortOrder  int      `json:"sort_order"`
	Status     int      `json:"status"`
}

// OrderResponse 订单响应 // Logan.Li
type OrderResponse struct {
	ID             uint    `json:"id"`
	OrderNo        string  `json:"order_no"`
	CustomerID     uint    `json:"customer_id"`
	CustomerName   string  `json:"customer_name"`
	ProductID      uint    `json:"product_id"`
	ProductName    string  `json:"product_name"`
	PlanID         uint    `json:"plan_id"`
	PlanName       string  `json:"plan_name"`
	LicenseID      uint    `json:"license_id"`
	Amount         float64 `json:"amount"`
	Currency       string  `json:"currency"`
	Status         string  `json:"status"`
	PaymentGateway string  `json:"payment_gateway"`
	CreatedAt      string  `json:"created_at"`
	PaidAt         string  `json:"paid_at,omitempty"`
}

// CreateOrderRequest 创建订单请求（客户端购买入口） // Logan.Li
type CreateOrderRequest struct {
	CustomerEmail string `json:"customer_email" binding:"required,email"`
	CustomerName  string `json:"customer_name"`
	ProductID     uint   `json:"product_id"`
	PlanID        uint   `json:"plan_id"`
	ProductCode   string `json:"product_code"` // preferred by desktop clients
	PlanType      string `json:"plan_type"`    // e.g. perpetual
	DeviceID      string `json:"device_id"`
	ReturnURL     string `json:"return_url"`
	CancelURL     string `json:"cancel_url"`
}

// CreateOrderResponse 创建订单响应 // Logan.Li
type CreateOrderResponse struct {
	OrderNo     string  `json:"order_no"`
	CheckoutURL string  `json:"checkout_url"`
	Amount      float64 `json:"amount"`
	Currency    string  `json:"currency"`
	Status      string  `json:"status"`
	Gateway     string  `json:"gateway"`
	ExpiresAt   string  `json:"expires_at"`
}

// CheckoutRequest desktop-friendly checkout (product_code + email). // Logan.Li
type CheckoutRequest struct {
	CustomerEmail string `json:"customer_email" binding:"required,email"`
	CustomerName  string `json:"customer_name"`
	ProductCode   string `json:"product_code"`
	PlanType      string `json:"plan_type"`
	DeviceID      string `json:"device_id"`
	ReturnURL     string `json:"return_url"`
	CancelURL     string `json:"cancel_url"`
}

// ClaimPurchaseRequest fetch license after payment. // Logan.Li
type ClaimPurchaseRequest struct {
	CustomerEmail string `json:"customer_email"`
	OrderNo       string `json:"order_no"`
	ProductCode   string `json:"product_code"`
	DeviceID      string `json:"device_id"`
}

// ClaimPurchaseResponse returned after successful payment. // Logan.Li
type ClaimPurchaseResponse struct {
	LicenseKey string `json:"license_key"`
	OrderNo    string `json:"order_no,omitempty"`
	Status     string `json:"status"`
	Message    string `json:"message,omitempty"`
}

// ProductWithPlansResponse for GET /v1/products/code/:code // Logan.Li
type ProductWithPlansResponse struct {
	Product ProductResponse `json:"product"`
	Plans   []PlanResponse  `json:"plans"`
}

// PaymentWebhookRequest 支付回调请求 // Logan.Li
type PaymentWebhookRequest struct {
	EventType      string  `json:"event_type" binding:"required"`
	OrderNo        string  `json:"order_no" binding:"required"`
	GatewayOrderNo string  `json:"gateway_order_no"`
	Status         string  `json:"status" binding:"required"` // paid / failed / refunded
	Amount         float64 `json:"amount"`
	Currency       string  `json:"currency"`
	CustomerEmail  string  `json:"customer_email"`
	Gateway        string  `json:"gateway" binding:"required"`
	Signature      string  `json:"signature"`
	Payload        string  `json:"payload"`
}

// ManualGrantRequest 手动发放 License 请求（管理后台） // Logan.Li
type ManualGrantRequest struct {
	CustomerEmail string `json:"customer_email" binding:"required,email"`
	CustomerName  string `json:"customer_name"`
	ProductID     uint   `json:"product_id" binding:"required"`
	PlanID        uint   `json:"plan_id" binding:"required"`
	DeviceID      string `json:"device_id"`
	Notes         string `json:"notes"`
}

// EntitlementResponse 客户权益响应 // Logan.Li
type EntitlementResponse struct {
	ID             uint    `json:"id"`
	CustomerID     uint    `json:"customer_id"`
	CustomerName   string  `json:"customer_name"`
	ProductID      uint    `json:"product_id"`
	ProductName    string  `json:"product_name"`
	PlanID         uint    `json:"plan_id"`
	PlanName       string  `json:"plan_name"`
	PlanType       string  `json:"plan_type"`
	LicenseKey     string  `json:"license_key"`
	Status         string  `json:"status"`
	ValidFrom      string  `json:"valid_from"`
	ValidUntil     *string `json:"valid_until,omitempty"`
	DaysLeft       int     `json:"days_left"`
	Renewable      bool    `json:"renewable"`
	MaxDevices     int     `json:"max_devices"`
	CurrentDevices int     `json:"current_devices"`
}

// DuplicatePurchaseCheckRequest 防重复购买检测请求 // Logan.Li
type DuplicatePurchaseCheckRequest struct {
	CustomerEmail string `json:"customer_email" binding:"required,email"`
	ProductID     uint   `json:"product_id" binding:"required"`
}

// DuplicatePurchaseCheckResponse 防重复购买检测响应 // Logan.Li
type DuplicatePurchaseCheckResponse struct {
	AllowPurchase         bool          `json:"allow_purchase"`
	Reason                string        `json:"reason,omitempty"`
	ExistingEntitlementID uint          `json:"existing_entitlement_id,omitempty"`
	ExistingLicenseKey    string        `json:"existing_license_key,omitempty"`
	ExistingPlanType      string        `json:"existing_plan_type,omitempty"`
	CanUpgrade            bool          `json:"can_upgrade"`
	UpgradeOptions        []PlanResponse `json:"upgrade_options,omitempty"`
}

// CheckPurchaseStatusRequest 购买状态查询请求 // Logan.Li
type CheckPurchaseStatusRequest struct {
	CustomerEmail string `json:"customer_email" binding:"required,email"`
	ProductID     uint   `json:"product_id" binding:"required"`
}

// CheckPurchaseStatusResponse 购买状态查询响应 // Logan.Li
type CheckPurchaseStatusResponse struct {
	Purchased        bool    `json:"purchased"`
	HasActiveLicense bool    `json:"has_active_license"`
	LicenseKey       string  `json:"license_key,omitempty"`
	LicenseStatus    string  `json:"license_status,omitempty"`
	PlanType         string  `json:"plan_type,omitempty"`
	ValidUntil       *string `json:"valid_until,omitempty"`
	DaysLeft         int     `json:"days_left,omitempty"`
	Renewable        bool    `json:"renewable"`
	MaxDevices       int     `json:"max_devices,omitempty"`
	CurrentDevices   int     `json:"current_devices,omitempty"`
	EntitlementID    uint    `json:"entitlement_id,omitempty"`
	Message          string  `json:"message,omitempty"`
}