package apiclient

import (
	"context"
	"crypto/tls"
	"fmt"
	"net/http"

	"github.com/AFASystems/presence/internal/pkg/config"
	"github.com/AFASystems/presence/internal/pkg/controller"
	"github.com/AFASystems/presence/internal/pkg/model"
	"github.com/segmentio/kafka-go"
	"gorm.io/gorm"
	"gorm.io/gorm/clause"
)

func UpdateDB(db *gorm.DB, ctx context.Context, cfg *config.Config, writer *kafka.Writer) error {
	tr := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
	}
	client := &http.Client{Transport: tr}

	token, err := GetToken(ctx, cfg, client)
	if err != nil {
		return err
	}

	trackers, err := GetTrackers(token, client)
	if err != nil {
		fmt.Printf("Error in getting trackers: %+v\n", err)
	} else {
		if err := controller.SendKafkaMessage(writer, &model.ApiUpdate{Method: "DELETE", MAC: "all"}, ctx); err != nil {
			fmt.Printf("Error in sending delete all from lookup message: %v", err)
		}

		for _, v := range trackers {
			apiUpdate := model.ApiUpdate{
				Method: "POST",
				ID:     v.ID,
				MAC:    v.MAC,
			}

			if err := controller.SendKafkaMessage(writer, &apiUpdate, ctx); err != nil {
				fmt.Printf("Error in sending POST kafka message: %v", err)
			}
		}

		var ids []string
		for _, t := range trackers {
			ids = append(ids, t.ID)
		}
		db.Where("id NOT IN ?", ids).Delete(&model.Tracker{})
	}

	gateways, err := GetGateways(token, client)
	if err != nil {
		fmt.Printf("Error in getting gateways: %+v\n", err)
	} else {
		var ids []string
		for _, g := range gateways {
			ids = append(ids, g.ID)
		}
		db.Where("id NOT IN ?", ids).Delete(&model.Gateway{})
	}

	zones, err := GetZones(token, client)
	if err != nil {
		fmt.Printf("Error in getting zones: %+v\n", err)
	} else {
		var ids []string
		for _, z := range zones {
			ids = append(ids, z.ID)
		}
		db.Where("id NOT IN ?", ids).Delete(&model.Zone{})
	}

	trackerZones, err := GetTrackerZones(token, client)
	if err != nil {
		fmt.Printf("Error in getting tracker zones: %+v\n", err)
	} else {
		var ids []string
		for _, tz := range trackerZones {
			ids = append(ids, tz.ID)
		}
		db.Where("id NOT IN ?", ids).Delete(&model.TrackerZones{})
	}

	db.Clauses(clause.OnConflict{
		Columns:   []clause.Column{{Name: "id"}},
		UpdateAll: true,
	}).Create(&trackers)
	db.Clauses(clause.OnConflict{
		Columns:   []clause.Column{{Name: "id"}},
		UpdateAll: true,
	}).Create(&gateways)
	db.Clauses(clause.OnConflict{
		Columns:   []clause.Column{{Name: "id"}},
		UpdateAll: true,
	}).Create(&zones)
	db.Clauses(clause.OnConflict{
		Columns:   []clause.Column{{Name: "id"}},
		UpdateAll: true,
	}).Create(&trackerZones)

	return nil
}