package domain

import (
	"time"

	"github.com/gofrs/uuid/v5"
)

// Company represents a B2B actor in the marketplace.
type Company struct {
	ID              uuid.UUID `db:"id" json:"id"`
	Role            string    `db:"role" json:"role"` // pharmacy, distributor, admin
	CNPJ            string    `db:"cnpj" json:"cnpj"`
	CorporateName   string    `db:"corporate_name" json:"corporate_name"`
	SanitaryLicense string    `db:"sanitary_license" json:"sanitary_license"`
	CreatedAt       time.Time `db:"created_at" json:"created_at"`
	UpdatedAt       time.Time `db:"updated_at" json:"updated_at"`
}

// Product represents a medicine SKU with batch tracking.
type Product struct {
	ID          uuid.UUID `db:"id" json:"id"`
	SellerID    uuid.UUID `db:"seller_id" json:"seller_id"`
	Name        string    `db:"name" json:"name"`
	Description string    `db:"description" json:"description"`
	Batch       string    `db:"batch" json:"batch"`
	ExpiresAt   time.Time `db:"expires_at" json:"expires_at"`
	PriceCents  int64     `db:"price_cents" json:"price_cents"`
	Stock       int64     `db:"stock" json:"stock"`
	CreatedAt   time.Time `db:"created_at" json:"created_at"`
	UpdatedAt   time.Time `db:"updated_at" json:"updated_at"`
}

// Order captures the status lifecycle and payment intent.
type Order struct {
	ID         uuid.UUID   `db:"id" json:"id"`
	BuyerID    uuid.UUID   `db:"buyer_id" json:"buyer_id"`
	SellerID   uuid.UUID   `db:"seller_id" json:"seller_id"`
	Status     OrderStatus `db:"status" json:"status"`
	TotalCents int64       `db:"total_cents" json:"total_cents"`
	Items      []OrderItem `json:"items"`
	CreatedAt  time.Time   `db:"created_at" json:"created_at"`
	UpdatedAt  time.Time   `db:"updated_at" json:"updated_at"`
}

// OrderItem stores SKU-level batch tracking.
type OrderItem struct {
	ID        uuid.UUID `db:"id" json:"id"`
	OrderID   uuid.UUID `db:"order_id" json:"order_id"`
	ProductID uuid.UUID `db:"product_id" json:"product_id"`
	Quantity  int64     `db:"quantity" json:"quantity"`
	UnitCents int64     `db:"unit_cents" json:"unit_cents"`
	Batch     string    `db:"batch" json:"batch"`
	ExpiresAt time.Time `db:"expires_at" json:"expires_at"`
}

// PaymentPreference wraps the data needed for Mercado Pago split payments.
type PaymentPreference struct {
	OrderID          uuid.UUID `json:"order_id"`
	Gateway          string    `json:"gateway"`
	CommissionPct    float64   `json:"commission_pct"`
	MarketplaceFee   int64     `json:"marketplace_fee"`
	SellerReceivable int64     `json:"seller_receivable"`
	PaymentURL       string    `json:"payment_url"`
}

// OrderStatus enumerates supported transitions.
type OrderStatus string

const (
	OrderStatusPending   OrderStatus = "Pendente"
	OrderStatusPaid      OrderStatus = "Pago"
	OrderStatusInvoiced  OrderStatus = "Faturado"
	OrderStatusDelivered OrderStatus = "Entregue"
)