package api

import (
	"fmt"
	"github.com/gin-gonic/gin"
	"go_backend/internal/dbs"
	"go_backend/internal/model"
	"go_backend/internal/utils"
)

type CameraVO struct {
	ID               int32       `json:"id"`
	CameraID         string      `json:"camera_id"`
	DisplayName      string      `json:"display_name"`
	ParentCategoryID []int       `json:"parent_category_id"`
	ViewPriority     int32       `json:"view_priority"`
	Status           string      `json:"status"`
	Type             string      `json:"type"`
	IPAddress        string      `json:"ip_address"`
	IsDeleted        bool        `json:"is_deleted"`
	CreateTime       string      `json:"create_time"`
	DeletedTime      string      `json:"deleted_time"`
	UpdateTime       string      `json:"update_time"`
	ChildVO          []*CameraVO `json:"child"`
}

func GetAllCameras(router *gin.RouterGroup) {
	router.GET("/camerasList", func(c *gin.Context) {
		cameras := make([]model.Camera, 0)
		db := dbs.GetGormDB()
		db.Find(&cameras)

		cameraMap := make(map[int][]model.Camera)

		for _, camera := range cameras {
			cameraMap[int(camera.ViewPriority)] = append(cameraMap[(int(camera.ViewPriority))], camera)
		}

		cameraVOList := make([]*CameraVO, 0)
		level := 0

		cameraRecord := make(map[int]*CameraVO)

		for priority, cameraArray := range cameraMap {
			if priority == 0 {
				for _, camera := range cameraArray {
					vo := transVO(camera)
					cameraVOList = append(cameraVOList, &vo)
					cameraRecord[int(camera.ID)] = &vo
				}
				level += 1
				continue
			}

			if priority == level {
				tempRecord := make(map[int]*CameraVO)

				for _, camera := range cameraArray {
					vo := transVO(camera)
					parentId := vo.ParentCategoryID[len(vo.ParentCategoryID)-1]
					if pointer, exists := cameraRecord[parentId]; exists {
						pointer.ChildVO = append(pointer.ChildVO, &vo)
						utils.PrintSlice(vo.ParentCategoryID)
						newParent := make([]int, 0)
						utils.PrintSlice(pointer.ParentCategoryID)
						for _, id := range pointer.ParentCategoryID {
							newParent = append(newParent, id)
						}
						newParent = append(newParent, parentId)
						vo.ParentCategoryID = newParent
						tempRecord[int(vo.ID)] = &vo
					}
				}
				cameraRecord = tempRecord
				level += 1
			}
		}
		Success(c, cameraVOList)
	})
}

type Node struct {
	ParentID    int    `json:"parent_id"`
	DisplayName string `json:"display_name"`
	Ip          string `json:"ip"`
}

func CreateNode(router *gin.RouterGroup) {
	router.POST("/camera/addNode", func(c *gin.Context) {
		var req Node
		err := c.ShouldBindJSON(&req)
		if err != nil {
			fmt.Println("ctx.ShouldBindJSON err: ", err)
			c.JSON(400, gin.H{"error": err.Error()})
			return
		}
		newNode := model.Camera{
			ParentCategoryID: int32(req.ParentID),
			DisplayName:      req.DisplayName,
			IPAddress:        req.Ip,
		}
		db := dbs.GetGormDB()
		db.Create(&newNode)
		Success(c, "success")
	})
}

type ModifyNodeData struct {
	Id          int    `json:"id"`
	DisplayName string `json:"display_name"`
	Ip          string `json:"ip"`
}

func ModifyNode(router *gin.RouterGroup) {
	router.POST("/camera/modify", func(c *gin.Context) {
		var req ModifyNodeData
		err := c.ShouldBindJSON(&req)
		if err != nil {
			fmt.Println("ctx.ShouldBindJSON err: ", err)
			c.JSON(400, gin.H{"error": err.Error()})
			return
		}
		node := model.Camera{
			ID:        int32(req.Id),
			IPAddress: req.Ip,
		}
		if req.DisplayName != "" {
			node.DisplayName = req.DisplayName
		}
		db := dbs.GetGormDB()
		result := db.Updates(&node)

		Success(c, result)
	})
}

func transVO(camera model.Camera) CameraVO {
	vo := CameraVO{
		ID:               camera.ID,
		CameraID:         camera.CameraID,
		DisplayName:      camera.DisplayName,
		ParentCategoryID: make([]int, 1),
		ViewPriority:     camera.ViewPriority,
		Status:           camera.Status,
		Type:             camera.Type,
		IPAddress:        camera.IPAddress,
		IsDeleted:        camera.IsDeleted,
		CreateTime:       camera.CreateTime,
		DeletedTime:      camera.DeletedTime,
		UpdateTime:       camera.UpdateTime,
		ChildVO:          make([]*CameraVO, 0),
	}
	vo.ParentCategoryID[0] = int(camera.ParentCategoryID)
	return vo
}