package contract

import (
	"time"

	"github.com/google/uuid"
)

// Request Contracts
type CreateRewardRequest struct {
	Name           string                    `json:"name" binding:"required,min=1,max=150"`
	RewardType     string                    `json:"reward_type" binding:"required,oneof=VOUCHER PHYSICAL DIGITAL"`
	CostPoints     int64                     `json:"cost_points" binding:"required,min=1"`
	Stock          *int                      `json:"stock,omitempty"`
	MaxPerCustomer int                       `json:"max_per_customer" binding:"min=1"`
	Tnc            *TermsAndConditionsStruct `json:"tnc,omitempty"`
	Metadata       *map[string]interface{}   `json:"metadata,omitempty"`
	Images         *[]string                 `json:"images,omitempty"`
}

type UpdateRewardRequest struct {
	ID             uuid.UUID                 `json:"id" binding:"required"`
	Name           string                    `json:"name" binding:"required,min=1,max=150"`
	RewardType     string                    `json:"reward_type" binding:"required,oneof=VOUCHER PHYSICAL DIGITAL BALANCE"`
	CostPoints     int64                     `json:"cost_points" binding:"required,min=1"`
	Stock          *int                      `json:"stock,omitempty"`
	MaxPerCustomer int                       `json:"max_per_customer" binding:"min=1"`
	Tnc            *TermsAndConditionsStruct `json:"tnc,omitempty"`
	Metadata       *map[string]interface{}   `json:"metadata,omitempty"`
	Images         *[]string                 `json:"images,omitempty"`
}

type ListRewardsRequest struct {
	Page       int    `form:"page" binding:"min=1"`
	Limit      int    `form:"limit" binding:"min=1,max=100"`
	Search     string `form:"search"`
	RewardType string `form:"reward_type"`
	MinPoints  *int64 `form:"min_points"`
	MaxPoints  *int64 `form:"max_points"`
	HasStock   *bool  `form:"has_stock"`
}

type GetRewardRequest struct {
	ID uuid.UUID `uri:"id" binding:"required"`
}

type DeleteRewardRequest struct {
	ID uuid.UUID `uri:"id" binding:"required"`
}

// Response Contracts
type RewardResponse struct {
	ID             uuid.UUID                 `json:"id"`
	Name           string                    `json:"name"`
	RewardType     string                    `json:"reward_type"`
	CostPoints     int64                     `json:"cost_points"`
	Stock          *int                      `json:"stock,omitempty"`
	MaxPerCustomer int                       `json:"max_per_customer"`
	Tnc            *TermsAndConditionsStruct `json:"tnc,omitempty"`
	Metadata       *map[string]interface{}   `json:"metadata,omitempty"`
	Images         *[]string                 `json:"images,omitempty"`
	CreatedAt      time.Time                 `json:"created_at"`
	UpdatedAt      time.Time                 `json:"updated_at"`
}

type ListRewardsResponse struct {
	Rewards []RewardResponse `json:"rewards"`
	Total   int64            `json:"total"`
	Page    int              `json:"page"`
	Limit   int              `json:"limit"`
}

// Helper structs
type TermsAndConditionsStruct struct {
	Sections   []TncSectionStruct `json:"sections"`
	ExpiryDays int                `json:"expiry_days"`
}

type TncSectionStruct struct {
	Title string   `json:"title"`
	Rules []string `json:"rules"`
}