package models

import (
	"time"

	"github.com/google/uuid"
)

// Existing gamification models
type CreateCustomerPointsRequest struct {
	CustomerID uuid.UUID `json:"customer_id" validate:"required"`
	Balance    int64     `json:"balance" validate:"min=0"`
}

type UpdateCustomerPointsRequest struct {
	Balance int64 `json:"balance" validate:"min=0"`
}

type AddCustomerPointsRequest struct {
	Balance int64 `json:"balance" validate:"required,min=1"`
}

type DeductCustomerPointsRequest struct {
	Balance int64 `json:"balance" validate:"required,min=1"`
}

type CustomerPointsResponse struct {
	ID         uuid.UUID         `json:"id"`
	CustomerID uuid.UUID         `json:"customer_id"`
	Balance    int64             `json:"balance"`
	Customer   *CustomerResponse `json:"customer,omitempty"`
	CreatedAt  time.Time         `json:"created_at"`
	UpdatedAt  time.Time         `json:"updated_at"`
}

type ListCustomerPointsQuery struct {
	Page      int    `json:"page" validate:"min=1"`
	Limit     int    `json:"limit" validate:"min=1,max=100"`
	Search    string `json:"search"`
	SortBy    string `json:"sort_by" validate:"omitempty,oneof=balance created_at updated_at"`
	SortOrder string `json:"sort_order" validate:"omitempty,oneof=asc desc"`
}

type PaginatedCustomerPointsResponse struct {
	Data       []CustomerPointsResponse `json:"data"`
	TotalCount int                      `json:"total_count"`
	Page       int                      `json:"page"`
	Limit      int                      `json:"limit"`
	TotalPages int                      `json:"total_pages"`
}

// New customer API models
type GetCustomerPointsRequest struct {
	// No additional fields needed - customer ID comes from JWT token
}

type GetCustomerTokensRequest struct {
	// No additional fields needed - customer ID comes from JWT token
}

type GetCustomerWalletRequest struct {
	// No additional fields needed - customer ID comes from JWT token
}

// Response Models
type GetCustomerPointsResponse struct {
	Status  string                         `json:"status"`
	Message string                         `json:"message"`
	Data    *GetCustomerPointsResponseData `json:"data,omitempty"`
}

type GetCustomerPointsResponseData struct {
	TotalPoints   int64               `json:"total_points"`
	PointsHistory []PointsHistoryItem `json:"points_history,omitempty"`
	LastUpdated   time.Time           `json:"last_updated"`
}

type PointsHistoryItem struct {
	ID          string    `json:"id"`
	Points      int64     `json:"points"`
	Type        string    `json:"type"` // EARNED, REDEEMED, EXPIRED
	Description string    `json:"description"`
	CreatedAt   time.Time `json:"created_at"`
}

type GetCustomerTokensResponse struct {
	Status  string                         `json:"status"`
	Message string                         `json:"message"`
	Data    *GetCustomerTokensResponseData `json:"data,omitempty"`
}

type GetCustomerTokensResponseData struct {
	TotalTokens   int64               `json:"total_tokens"`
	TokensHistory []TokensHistoryItem `json:"tokens_history,omitempty"`
	LastUpdated   time.Time           `json:"last_updated"`
}

type TokensHistoryItem struct {
	ID          string    `json:"id"`
	Tokens      int64     `json:"tokens"`
	Type        string    `json:"type"` // EARNED, REDEEMED, EXPIRED
	Description string    `json:"description"`
	CreatedAt   time.Time `json:"created_at"`
}

type GetCustomerWalletResponse struct {
	Status  string                         `json:"status"`
	Message string                         `json:"message"`
	Data    *GetCustomerWalletResponseData `json:"data,omitempty"`
}

// GetCustomerWalletResponseData is GET /customer/wallet (docs/prd-point-coin.md F6).
type GetCustomerWalletResponseData struct {
	// Balances the customer can spend now.
	PointBalance int64 `json:"point_balance"`
	CoinBalance  int64 `json:"coin_balance"`
	// Rupiah value of one EnakPoint, and of the whole point balance. EnakPoint only
	// ever pays for orders, so the app shows this as "setara potongan Rp …" (K7).
	PointValue         int64                         `json:"point_value"`
	PointDiscountValue int64                         `json:"point_discount_value"`
	NearestExpiring    CustomerWalletNearestExpiring `json:"nearest_expiring"`
	RecentTransactions []CustomerWalletTransaction   `json:"recent_transactions"`

	// Deprecated: the shape of this endpoint before the wallet, kept for app versions
	// that still read it. Filled from the wallet like the fields above.
	TotalPoints   int64               `json:"total_points"`
	TotalTokens   int64               `json:"total_tokens"`
	PointsHistory []PointsHistoryItem `json:"points_history,omitempty"`
	TokensHistory []TokensHistoryItem `json:"tokens_history,omitempty"`
	LastUpdated   time.Time           `json:"last_updated"`
}