package models

import (
	"time"

	"github.com/google/uuid"
)

// PaymentMethodAnalyticsRequest represents the request for payment method analytics
type PaymentMethodAnalyticsRequest struct {
	OrganizationID uuid.UUID  `validate:"required"`
	OutletID       *uuid.UUID `validate:"omitempty"`
	DateFrom       time.Time  `validate:"required"`
	DateTo         time.Time  `validate:"required"`
	GroupBy        string     `validate:"omitempty,oneof=day hour week month"`
}

// PaymentMethodAnalyticsResponse represents the response for payment method analytics
type PaymentMethodAnalyticsResponse struct {
	OrganizationID uuid.UUID                    `json:"organization_id"`
	OutletID       *uuid.UUID                   `json:"outlet_id,omitempty"`
	DateFrom       time.Time                    `json:"date_from"`
	DateTo         time.Time                    `json:"date_to"`
	GroupBy        string                       `json:"group_by"`
	Summary        PaymentMethodSummary         `json:"summary"`
	Data           []PaymentMethodAnalyticsData `json:"data"`
}

// PaymentMethodSummary represents the summary of payment method analytics
type PaymentMethodSummary struct {
	TotalAmount       float64 `json:"total_amount"`
	TotalOrders       int64   `json:"total_orders"`
	TotalPayments     int64   `json:"total_payments"`
	AverageOrderValue float64 `json:"average_order_value"`
}

// PaymentMethodAnalyticsData represents individual payment method analytics data
type PaymentMethodAnalyticsData struct {
	PaymentMethodID   uuid.UUID `json:"payment_method_id"`
	PaymentMethodName string    `json:"payment_method_name"`
	PaymentMethodType string    `json:"payment_method_type"`
	TotalAmount       float64   `json:"total_amount"`
	OrderCount        int64     `json:"order_count"`
	PaymentCount      int64     `json:"payment_count"`
	Percentage        float64   `json:"percentage"`
}

// SalesAnalyticsRequest represents the request for sales analytics
type SalesAnalyticsRequest struct {
	OrganizationID uuid.UUID  `validate:"required"`
	OutletID       *uuid.UUID `validate:"omitempty"`
	DateFrom       time.Time  `validate:"required"`
	DateTo         time.Time  `validate:"required"`
	GroupBy        string     `validate:"omitempty,oneof=day hour week month"`
}

// SalesAnalyticsResponse represents the response for sales analytics
type SalesAnalyticsResponse struct {
	OrganizationID uuid.UUID            `json:"organization_id"`
	OutletID       *uuid.UUID           `json:"outlet_id,omitempty"`
	DateFrom       time.Time            `json:"date_from"`
	DateTo         time.Time            `json:"date_to"`
	GroupBy        string               `json:"group_by"`
	Summary        SalesSummary         `json:"summary"`
	Data           []SalesAnalyticsData `json:"data"`
}

// SalesSummary represents the summary of sales analytics
type SalesSummary struct {
	TotalSales        float64 `json:"total_sales"`
	TotalOrders       int64   `json:"total_orders"`
	TotalItems        int64   `json:"total_items"`
	AverageOrderValue float64 `json:"average_order_value"`
	TotalTax          float64 `json:"total_tax"`
	TotalDiscount     float64 `json:"total_discount"`
	NetSales          float64 `json:"net_sales"`
}

// SalesAnalyticsData represents individual sales analytics data point
type SalesAnalyticsData struct {
	Date     time.Time `json:"date"`
	Sales    float64   `json:"sales"`
	Orders   int64     `json:"orders"`
	Items    int64     `json:"items"`
	Tax      float64   `json:"tax"`
	Discount float64   `json:"discount"`
	NetSales float64   `json:"net_sales"`
}

// PurchasingAnalyticsRequest represents the request for purchasing analytics
type PurchasingAnalyticsRequest struct {
	OrganizationID uuid.UUID  `validate:"required"`
	OutletID       *uuid.UUID `validate:"omitempty"`
	DateFrom       time.Time  `validate:"required"`
	DateTo         time.Time  `validate:"required"`
	GroupBy        string     `validate:"omitempty,oneof=day hour week month"`
}

// PurchasingAnalyticsResponse represents the response for purchasing analytics
type PurchasingAnalyticsResponse struct {
	OrganizationID uuid.UUID                  `json:"organization_id"`
	OutletID       *uuid.UUID                 `json:"outlet_id,omitempty"`
	OutletName     *string                    `json:"outlet_name,omitempty"`
	DateFrom       time.Time                  `json:"date_from"`
	DateTo         time.Time                  `json:"date_to"`
	GroupBy        string                     `json:"group_by"`
	Summary        PurchasingSummary          `json:"summary"`
	Data           []PurchasingAnalyticsData  `json:"data"`
	IngredientData []PurchasingIngredientData `json:"ingredient_data"`
	VendorData     []PurchasingVendorData     `json:"vendor_data"`
}

// PurchasingSummary represents the summary of purchasing analytics
type PurchasingSummary struct {
	TotalPurchases            float64 `json:"total_purchases"`
	TotalPurchaseOrders       int64   `json:"total_purchase_orders"`
	TotalQuantity             float64 `json:"total_quantity"`
	AveragePurchaseOrderValue float64 `json:"average_purchase_order_value"`
	TotalIngredients          int64   `json:"total_ingredients"`
	TotalVendors              int64   `json:"total_vendors"`
}

// PurchasingAnalyticsData represents purchasing analytics by time period
type PurchasingAnalyticsData struct {
	Date           time.Time `json:"date"`
	Purchases      float64   `json:"purchases"`
	PurchaseOrders int64     `json:"purchase_orders"`
	Quantity       float64   `json:"quantity"`
	Ingredients    int64     `json:"ingredients"`
	Vendors        int64     `json:"vendors"`
}

// PurchasingIngredientData represents purchasing analytics for an ingredient
type PurchasingIngredientData struct {
	IngredientID       uuid.UUID `json:"ingredient_id"`
	IngredientName     string    `json:"ingredient_name"`
	Quantity           float64   `json:"quantity"`
	TotalCost          float64   `json:"total_cost"`
	AverageUnitCost    float64   `json:"average_unit_cost"`
	PurchaseOrderCount int64     `json:"purchase_order_count"`
}

// PurchasingVendorData represents purchasing analytics for a vendor
type PurchasingVendorData struct {
	VendorID           uuid.UUID `json:"vendor_id"`
	VendorName         string    `json:"vendor_name"`
	TotalCost          float64   `json:"total_cost"`
	PurchaseOrderCount int64     `json:"purchase_order_count"`
	IngredientCount    int64     `json:"ingredient_count"`
	Quantity           float64   `json:"quantity"`
}

// ProductAnalyticsRequest represents the request for product analytics
type ProductAnalyticsRequest struct {
	OrganizationID uuid.UUID  `validate:"required"`
	OutletID       *uuid.UUID `validate:"omitempty"`
	DateFrom       time.Time  `validate:"required"`
	DateTo         time.Time  `validate:"required"`
	Limit          int        `validate:"min=1,max=100"`
}

// ProductAnalyticsResponse represents the response for product analytics
type ProductAnalyticsResponse struct {
	OrganizationID uuid.UUID              `json:"organization_id"`
	OutletID       *uuid.UUID             `json:"outlet_id,omitempty"`
	DateFrom       time.Time              `json:"date_from"`
	DateTo         time.Time              `json:"date_to"`
	Data           []ProductAnalyticsData `json:"data"`
}

type ProductAnalyticsData struct {
	ProductID               uuid.UUID `json:"product_id"`
	ProductName             string    `json:"product_name"`
	ProductSku              string    `json:"product_sku"`
	CategoryID              uuid.UUID `json:"category_id"`
	CategoryName            string    `json:"category_name"`
	CategoryOrder           int       `json:"category_order"`
	QuantitySold            int64     `json:"quantity_sold"`
	Revenue                 float64   `json:"revenue"`
	AveragePrice            float64   `json:"average_price"`
	OrderCount              int64     `json:"order_count"`
	StandardHppPerUnit      float64   `json:"standard_hpp_per_unit"`
	StandardHppTotal        float64   `json:"standard_hpp_total"`
	FifoHppPerUnit          float64   `json:"fifo_hpp_per_unit"`
	FifoHppTotal            float64   `json:"fifo_hpp_total"`
	MovingAverageHppPerUnit float64   `json:"moving_average_hpp_per_unit"`
	MovingAverageHppTotal   float64   `json:"moving_average_hpp_total"`
}

// ProductAnalyticsPerCategoryRequest represents the request for product analytics per category
type ProductAnalyticsPerCategoryRequest struct {
	OrganizationID uuid.UUID  `validate:"required"`
	OutletID       *uuid.UUID `validate:"omitempty"`
	DateFrom       time.Time  `validate:"required"`
	DateTo         time.Time  `validate:"required"`
}

// ProductAnalyticsPerCategoryResponse represents the response for product analytics per category
type ProductAnalyticsPerCategoryResponse struct {
	OrganizationID uuid.UUID                         `json:"organization_id"`
	OutletID       *uuid.UUID                        `json:"outlet_id,omitempty"`
	DateFrom       time.Time                         `json:"date_from"`
	DateTo         time.Time                         `json:"date_to"`
	Data           []ProductAnalyticsPerCategoryData `json:"data"`
}

type ProductAnalyticsPerCategoryData struct {
	CategoryID            uuid.UUID `json:"category_id"`
	CategoryName          string    `json:"category_name"`
	TotalRevenue          float64   `json:"total_revenue"`
	TotalQuantity         int64     `json:"total_quantity"`
	ProductCount          int64     `json:"product_count"`
	OrderCount            int64     `json:"order_count"`
	TotalStandardHpp      float64   `json:"total_standard_hpp"`
	TotalFifoHpp          float64   `json:"total_fifo_hpp"`
	TotalMovingAverageHpp float64   `json:"total_moving_average_hpp"`
}

// DashboardAnalyticsRequest represents the request for dashboard analytics
type DashboardAnalyticsRequest struct {
	OrganizationID uuid.UUID  `validate:"required"`
	OutletID       *uuid.UUID `validate:"omitempty"`
	DateFrom       time.Time  `validate:"required"`
	DateTo         time.Time  `validate:"required"`
}

// DashboardAnalyticsResponse represents the response for dashboard analytics
type DashboardAnalyticsResponse struct {
	OrganizationID uuid.UUID                    `json:"organization_id"`
	OutletID       *uuid.UUID                   `json:"outlet_id,omitempty"`
	DateFrom       time.Time                    `json:"date_from"`
	DateTo         time.Time                    `json:"date_to"`
	Overview       DashboardOverview            `json:"overview"`
	TopProducts    []ProductAnalyticsData       `json:"top_products"`
	PaymentMethods []PaymentMethodAnalyticsData `json:"payment_methods"`
	RecentSales    []SalesAnalyticsData         `json:"recent_sales"`
}

// DashboardOverview represents the overview data for dashboard
type DashboardOverview struct {
	TotalSales        float64 `json:"total_sales"`
	TotalOrders       int64   `json:"total_orders"`
	AverageOrderValue float64 `json:"average_order_value"`
	TotalCustomers    int64   `json:"total_customers"`
	VoidedOrders      int64   `json:"voided_orders"`
	RefundedOrders    int64   `json:"refunded_orders"`
}

type ProfitLossAnalyticsRequest struct {
	OrganizationID uuid.UUID  `validate:"required"`
	OutletID       *uuid.UUID `validate:"omitempty"`
	Date           time.Time  `validate:"required"`
}

type ProfitLossAnalyticsResponse struct {
	OrganizationID           uuid.UUID                `json:"organization_id"`
	OutletID                 *uuid.UUID               `json:"outlet_id,omitempty"`
	Date                     time.Time                `json:"date"`
	MainSummary              []ProfitLossSummaryRow   `json:"main_summary"`
	OperationalExpenses      []OperationalExpenseItem `json:"operational_expenses"`
	OperationalExpensesTotal float64                  `json:"operational_expenses_total"`
}

type ProfitLossSummaryRow struct {
	ID           string                 `json:"id"`
	Label        string                 `json:"label"`
	IsBold       bool                   `json:"is_bold"`
	TodayNominal float64                `json:"today_nominal"`
	TodayPct     float64                `json:"today_pct"`
	MtdNominal   float64                `json:"mtd_nominal"`
	MtdPct       float64                `json:"mtd_pct"`
	SubItems     []ProfitLossSummaryRow `json:"sub_items,omitempty"`
}

type OperationalExpenseItem struct {
	Item    string  `json:"item"`
	Nominal float64 `json:"nominal"`
}