package domain

import (
	"time"

	"github.com/google/uuid"
	"github.com/shopspring/decimal"
)

// FinancialCategory represents a category for income or expenses
type FinancialCategory struct {
	ID        uuid.UUID `json:"id" db:"id"`
	TenantID  uuid.UUID `json:"tenant_id" db:"tenant_id"`
	Name      string    `json:"name" db:"name"`
	Type      string    `json:"type" db:"type"` // income, expense
	Color     string    `json:"color" db:"color"`
	IsActive  bool      `json:"is_active" db:"is_active"`
	CreatedAt time.Time `json:"created_at" db:"created_at"`
	UpdatedAt time.Time `json:"updated_at" db:"updated_at"`
}

// BankAccount represents a financial account in the agency
type BankAccount struct {
	ID             uuid.UUID       `json:"id" db:"id"`
	TenantID       uuid.UUID       `json:"tenant_id" db:"tenant_id"`
	Name           string          `json:"name" db:"name"`
	BankName       string          `json:"bank_name" db:"bank_name"`
	InitialBalance decimal.Decimal `json:"initial_balance" db:"initial_balance"`
	CurrentBalance decimal.Decimal `json:"current_balance" db:"current_balance"`
	IsActive       bool            `json:"is_active" db:"is_active"`
	CreatedAt      time.Time       `json:"created_at" db:"created_at"`
	UpdatedAt      time.Time       `json:"updated_at" db:"updated_at"`
}

// Entity represents a customer or supplier in the ERP
type Entity struct {
	ID        uuid.UUID `json:"id" db:"id"`
	TenantID  uuid.UUID `json:"tenant_id" db:"tenant_id"`
	Name      string    `json:"name" db:"name"`
	Document  string    `json:"document" db:"document"`
	Email     string    `json:"email" db:"email"`
	Phone     string    `json:"phone" db:"phone"`
	Type      string    `json:"type" db:"type"` // customer, supplier, both
	Status    string    `json:"status" db:"status"`
	Address   string    `json:"address" db:"address"`
	City      string    `json:"city" db:"city"`
	State     string    `json:"state" db:"state"`
	Zip       string    `json:"zip" db:"zip"`
	Notes     string    `json:"notes" db:"notes"`
	CreatedAt time.Time `json:"created_at" db:"created_at"`
	UpdatedAt time.Time `json:"updated_at" db:"updated_at"`
}

// FinancialTransaction represents a single financial movement
type FinancialTransaction struct {
	ID          uuid.UUID       `json:"id" db:"id"`
	TenantID    uuid.UUID       `json:"tenant_id" db:"tenant_id"`
	AccountID   *uuid.UUID      `json:"account_id" db:"account_id"`
	CategoryID    *uuid.UUID      `json:"category_id" db:"category_id"`
	EntityID      *uuid.UUID      `json:"entity_id" db:"entity_id"`
	CRMCustomerID *uuid.UUID      `json:"crm_customer_id" db:"crm_customer_id"`
	CompanyID     *uuid.UUID      `json:"company_id" db:"company_id"`
	Description   string          `json:"description" db:"description"`
	Amount      decimal.Decimal `json:"amount" db:"amount"`
	Type        string          `json:"type" db:"type"`   // income, expense
	Status      string          `json:"status" db:"status"` // pending, paid, cancelled
	DueDate     *time.Time      `json:"due_date" db:"due_date"`
	PaymentDate   *time.Time      `json:"payment_date" db:"payment_date"`
	PaymentMethod string          `json:"payment_method" db:"payment_method"`
	Attachments   []string        `json:"attachments" db:"attachments"`
	CreatedBy   uuid.UUID       `json:"created_by" db:"created_by"`
	CreatedAt   time.Time       `json:"created_at" db:"created_at"`
	UpdatedAt   time.Time       `json:"updated_at" db:"updated_at"`
}

// Product represents a product or service in the catalog
type Product struct {
	ID            uuid.UUID       `json:"id" db:"id"`
	TenantID      uuid.UUID       `json:"tenant_id" db:"tenant_id"`
	Name          string          `json:"name" db:"name"`
	SKU           string          `json:"sku" db:"sku"`
	Description   string          `json:"description" db:"description"`
	Price         decimal.Decimal `json:"price" db:"price"`
	CostPrice     decimal.Decimal `json:"cost_price" db:"cost_price"`
	Type          string          `json:"type" db:"type"` // product, service
	StockQuantity int             `json:"stock_quantity" db:"stock_quantity"`
	IsActive      bool            `json:"is_active" db:"is_active"`
	CreatedAt     time.Time       `json:"created_at" db:"created_at"`
	UpdatedAt     time.Time       `json:"updated_at" db:"updated_at"`
}

// Order represents a sales or service order
type Order struct {
	ID          uuid.UUID       `json:"id" db:"id"`
	TenantID    uuid.UUID       `json:"tenant_id" db:"tenant_id"`
	CustomerID  *uuid.UUID      `json:"customer_id" db:"customer_id"`
	EntityID    *uuid.UUID      `json:"entity_id" db:"entity_id"`
	Status      string          `json:"status" db:"status"` // draft, confirmed, completed, cancelled
	TotalAmount decimal.Decimal `json:"total_amount" db:"total_amount"`
	Notes       string          `json:"notes" db:"notes"`
	CreatedBy   uuid.UUID       `json:"created_by" db:"created_by"`
	CreatedAt   time.Time       `json:"created_at" db:"created_at"`
	UpdatedAt   time.Time       `json:"updated_at" db:"updated_at"`
}

// OrderItem represents an item within an order
type OrderItem struct {
	ID         uuid.UUID       `json:"id" db:"id"`
	OrderID    uuid.UUID       `json:"order_id" db:"order_id"`
	ProductID  uuid.UUID       `json:"product_id" db:"product_id"`
	Quantity   int             `json:"quantity" db:"quantity"`
	UnitPrice  decimal.Decimal `json:"unit_price" db:"unit_price"`
	TotalPrice decimal.Decimal `json:"total_price" db:"total_price"`
	CreatedAt  time.Time       `json:"created_at" db:"created_at"`
}