package base

import (
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
	"strings"
	"time"
)

type GetReq struct {
	ID        uint   `form:"id"`
	Keyword   string `form:"keyword"`
	PageIndex int    `form:"pageIndex"`
	PageSize  int    `form:"pageSize"`
	SortField string `form:"sortField"`
	SortOrder string `form:"sortOrder"`
}

const PageSizeMax = 100
const PageSizeDefault = 12
const PageSizeAll = -1
const PageIndexDefault = 1
const SortFieldDefault = "updated_at"
const SortOrderDefault = "DESC"

func (getReq *GetReq) Init(ctx *gin.Context) error {
	if err := ctx.ShouldBindQuery(&getReq); err != nil {
		return err
	}

	if getReq.PageIndex <= 0 {
		getReq.PageIndex = PageIndexDefault
	}

	if getReq.PageSize < PageSizeAll || getReq.PageSize > PageSizeMax || getReq.PageSize == 0 {
		getReq.PageSize = PageSizeDefault
	}

	if getReq.SortField == "" {
		getReq.SortField = SortFieldDefault
	}

	getReq.SortOrder = strings.ToUpper(getReq.SortOrder)
	if getReq.SortOrder != "ASC" && getReq.SortOrder != "DESC" {
		getReq.SortOrder = SortOrderDefault
	}

	return nil
}

type Model struct {
	ID        uint           `gorm:"primarykey" json:"id"`
	CreatedAt time.Time      `json:"createdAt"`
	UpdatedAt time.Time      `json:"updatedAt"`
	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
}