package dto

import (
	"time"

	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
	userDTO "gitlab.com/mbugroup/lti-api.git/internal/modules/users/dto"
)

type StockLogListDTO struct {
	Id                 uint                     `json:"id"`
	ProductWarehouseId uint                     `json:"product_warehouse_id"`
	Increase           float64                  `json:"increase"`
	Decrease           float64                  `json:"decrease"`
	Stock              float64                  `json:"stock"`
	LoggableType       string                   `json:"loggable_type"`
	LoggableId         uint                     `json:"loggable_id"`
	Notes              *string                  `json:"notes"`
	CreatedBy          uint                     `json:"created_by"`
	CreatedUser        *userDTO.UserRelationDTO `json:"created_user,omitempty"`
	CreatedAt          time.Time                `json:"created_at"`
}

func ToStockLogListDTO(e entity.StockLog) StockLogListDTO {
	var notes *string
	if e.Notes != "" {
		n := e.Notes
		notes = &n
	}

	var createdUser *userDTO.UserRelationDTO
	if e.CreatedUser != nil && e.CreatedUser.Id != 0 {
		mapped := userDTO.ToUserRelationDTO(*e.CreatedUser)
		createdUser = &mapped
	}

	return StockLogListDTO{
		Id:                 e.Id,
		ProductWarehouseId: e.ProductWarehouseId,
		Increase:           e.Increase,
		Decrease:           e.Decrease,
		Stock:              e.Stock,
		LoggableType:       e.LoggableType,
		LoggableId:         e.LoggableId,
		Notes:              notes,
		CreatedBy:          e.CreatedBy,
		CreatedUser:        createdUser,
		CreatedAt:          e.CreatedAt,
	}
}

func ToStockLogListDTOs(e []entity.StockLog) []StockLogListDTO {
	if len(e) == 0 {
		return []StockLogListDTO{}
	}
	result := make([]StockLogListDTO, len(e))
	for i, log := range e {
		result[i] = ToStockLogListDTO(log)
	}
	return result
}