package models

import (
	"time"

	"gorm.io/gorm"
)

// OrderStatus represents the lifecycle of an order.
type OrderStatus string

const (
	OrderStatusPending   OrderStatus = "pending"
	OrderStatusPaid      OrderStatus = "paid"
	OrderStatusShipped   OrderStatus = "shipped"
	OrderStatusDelivered OrderStatus = "delivered"
	OrderStatusCancelled OrderStatus = "cancelled"
	OrderStatusRefunded  OrderStatus = "refunded"
)

// Order represents a completed purchase.
type Order struct {
	ID              uint           `gorm:"primaryKey" json:"id"`
	UserID          uint           `gorm:"not null;index" json:"user_id"`
	CardID          uint           `gorm:"not null" json:"card_id"`
	StripePaymentID string         `gorm:"size:255" json:"-"` // Stripe PaymentIntent ID
	Status          OrderStatus    `gorm:"size:50;not null;default:'pending'" json:"status"`
	Subtotal        int            `gorm:"not null" json:"subtotal"`       // Amount in cents
	ShippingCost    int            `gorm:"default:0" json:"shipping_cost"` // Amount in cents
	Total           int            `gorm:"not null" json:"total"`          // Amount in cents
	ShippingName    string         `gorm:"size:255" json:"shipping_name"`
	ShippingStreet  string         `gorm:"size:255" json:"shipping_street"`
	ShippingCity    string         `gorm:"size:255" json:"shipping_city"`
	ShippingState   string         `gorm:"size:50" json:"shipping_state"`
	ShippingZip     string         `gorm:"size:20" json:"shipping_zip"`
	CreatedAt       time.Time      `json:"created_at"`
	UpdatedAt       time.Time      `json:"updated_at"`
	DeletedAt       gorm.DeletedAt `gorm:"index" json:"-"`

	// Associations
	User  User        `gorm:"foreignKey:UserID" json:"-"`
	Card  Card        `gorm:"foreignKey:CardID" json:"-"`
	Items []OrderItem `gorm:"foreignKey:OrderID" json:"items"`
}

// TableName specifies the table name for the Order model.
func (Order) TableName() string {
	return "orders"
}

// OrderItem represents a single line item within an order.
type OrderItem struct {
	ID        uint           `gorm:"primaryKey" json:"id"`
	OrderID   uint           `gorm:"not null;index" json:"order_id"`
	CoffeeID  uint           `gorm:"not null" json:"coffee_id"`
	Name      string         `gorm:"size:255;not null" json:"name"` // Snapshot of coffee name at time of order
	Price     int            `gorm:"not null" json:"price"`         // Price in cents at time of order
	Quantity  int            `gorm:"not null" json:"quantity"`
	CreatedAt time.Time      `json:"created_at"`
	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`

	// Associations
	Order  Order  `gorm:"foreignKey:OrderID" json:"-"`
	Coffee Coffee `gorm:"foreignKey:CoffeeID" json:"-"`
}

// TableName specifies the table name for the OrderItem model.
func (OrderItem) TableName() string {
	return "order_items"
}

// TotalInDollars returns the order total formatted as a float for display.
func (o *Order) TotalInDollars() float64 {
	return float64(o.Total) / 100
}