package controllers

import (
	"encoding/json"
	"errors"
	"log"
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/jinzhu/gorm"
	"gitlab.com/pactual1/backend/models"
	"gitlab.com/pactual1/backend/shared"
)

func SaveDeviceInfo(c *gin.Context) {
	var deviceInfo models.DeviceInfo
	rawData, _ := c.GetRawData()

	// Unmarshal to the important info structure
	err := json.Unmarshal(rawData, &deviceInfo)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid JSON payload"})
		log.Printf("Invalid json pyload : %v",err)
		return
	}
	

	deviceInfo.RawJSON = string(rawData)

		// Attempt to find the device by IMEI; if not found, create a new device
		var device models.Device
		if err := shared.GetDb().Unscoped().Where("imei = ?", deviceInfo.IMEI).First(&device).Error; err != nil {
			if errors.Is(err, gorm.ErrRecordNotFound) {
				// Create new device
				newDevice := models.Device{
					IMEI: deviceInfo.IMEI,
					IMSI: deviceInfo.IMSI,
					DeviceConfiguration: string(rawData),
				}
				if err := shared.GetDb().Create(&newDevice).Error; err != nil {
					log.Printf("CREATE -Device DB Error: %v",err)
					c.JSON(http.StatusInternalServerError, gin.H{"error": "Could not create new device"})
					return
				}
				deviceInfo.DeviceID = newDevice.ID
			} else {
				log.Printf("CREATE -Device DB Error: %v",err)
				c.JSON(http.StatusInternalServerError, gin.H{"error": "Database error"})
				return
			}
		} else {
			log.Printf("Current device deleted at: %v",device.DeletedAt)

			if device.DeletedAt != nil {
				// Use raw SQL to update the record
				if err := shared.GetDb().Exec("UPDATE devices SET deleted_at = NULL, company_id = NULL WHERE id = ?", device.ID).Error; err != nil {
					log.Printf("UNDELETE -Device DB Error: %v", err)
					c.JSON(http.StatusInternalServerError, gin.H{"error": "Could not revive deleted device"})
					return
				} else {
					log.Printf("Device undeleted successfuly : %v",device.DeletedAt)
				}
			}
			deviceInfo.DeviceID = device.ID
		}


	// Save deviceInfo to your database
	if err := shared.GetDb().Create(&deviceInfo).Error; err != nil {
		log.Printf("SaveDeviceInfo CREATE -DeviceInfo DB Error: %v",err)
		c.JSON(http.StatusInternalServerError, gin.H{"error": "Could not save device info"})
		return
	}
	log.Printf("Successfully received and saved device info: %v",deviceInfo)
	c.JSON(http.StatusOK, gin.H{"message": "Successfully received and saved device info", "data": deviceInfo})
}