package demo

import (
	"fmt"
	"github.com/gin-gonic/gin"
	"net/http"
	"product/backend/module/base"
	"product/backend/moo/db"
	"product/backend/moo/log"
)

func Post(ctx *gin.Context) {
	// bind request data
	postModel := &PostModel{}
	if err := ctx.ShouldBind(&postModel); err != nil {
		log.Error(err)
		ctx.JSON(http.StatusOK, gin.H{
			"code":   1,
			"errors": base.Translate(err),
		})
		return
	}

	// insert
	model := postModel.Model
	if result := db.DB.Create(&model); result.Error != nil {
		log.Error(result.Error)
		ctx.JSON(http.StatusOK, gin.H{
			"code": 1,
		})
		return
	}

	// build response
	row := Model{}
	if err := db.DB.First(&row, model.ID).Error; err != nil {
		// association
	}
	ctx.JSON(http.StatusOK, gin.H{
		"code": 0,
		"data": row,
	})
}

func Put(ctx *gin.Context) {
	// bind request data
	putModel := &PutModel{}
	if err := ctx.ShouldBind(&putModel); err != nil {
		log.Error(err)
		ctx.JSON(http.StatusOK, gin.H{
			"code":   1,
			"errors": base.Translate(err),
		})
		return
	}

	// exists
	if err := db.DB.First(&Model{}, putModel.ID).Error; err != nil {
		log.Error(err)
		ctx.JSON(http.StatusOK, gin.H{
			"code": 1,
			"errors": gin.H{
				"id": "对应的记录不存在",
			},
		})
		return
	}

	// update
	model := putModel.Model
	if result := db.DB.Updates(&model); result.Error != nil {
		log.Error(result.Error)
		ctx.JSON(http.StatusOK, gin.H{
			"code": 1,
		})
		return
	}

	// build response
	row := Model{}
	if err := db.DB.First(&row, model.ID).Error; err != nil {
		// association
	}
	ctx.JSON(http.StatusOK, gin.H{
		"code": 0,
		"data": row,
	})
}

func Delete(ctx *gin.Context) {
	id := ctx.QueryArray("id")

	if result := db.DB.Delete(&Model{}, id); result.Error != nil {
		log.Error(result.Error)
		ctx.JSON(http.StatusOK, gin.H{
			"code": 1,
		})
		return
	}

	// response
	ctx.JSON(http.StatusOK, gin.H{
		"code": 0,
	})
}

func Get(ctx *gin.Context) {
	// get request param
	req := &GetReq{}
	if err := req.Init(ctx); err != nil {
		log.Error(err)
		ctx.JSON(http.StatusOK, gin.H{
			"code": 1,
		})
		return
	}

	// init query
	query := db.DB.Model(&Model{})

	if req.ID == 0 { // list
		// filter
		// keyword
		if req.Keyword != "" {
			query.Where("title LIKE ?", req.Keyword+"%")
		}

		// total
		var total int64
		query.Count(&total)

		// order
		query.Order(fmt.Sprintf("%s %s", req.SortField, req.SortOrder))

		// # offset limit
		offset := -1 // 不限制
		if req.PageSize > 0 {
			offset = (req.PageIndex - 1) * req.PageSize
		}
		query.Offset(offset).Limit(req.PageSize)

		// select
		query.Select("*")

		// fetch
		var rows []*Model
		if result := query.Find(&rows); result.Error != nil {
			log.Error(result.Error)
			ctx.JSON(http.StatusOK, gin.H{
				"code": 1,
			})
			return
		}

		// response
		ctx.JSON(http.StatusOK, gin.H{
			"code": 0,
			"data": gin.H{
				"list":      rows,
				"total":     total,
				"keyword":   req.Keyword,
				"pageIndex": req.PageIndex,
				"pageSize":  req.PageSize,
				"sortField": req.SortField,
				"sortOrder": req.SortOrder,
			},
		})
	} else { // one
		// fetch
		var row *Model
		if result := query.First(&row, req.ID); result.Error != nil {
			log.Error(result.Error)
			ctx.JSON(http.StatusOK, gin.H{
				"code": 1,
			})
			return
		}

		// response
		ctx.JSON(http.StatusOK, gin.H{
			"code": 0,
			"data": row,
		})
	}

}