package main

import (
	"bytes"
	"context"
	"fmt"
	"gitea.pena/PenaSide/common/validate"
	"gitea.pena/PenaSide/heruvym/internal/initialize"
	minioDal "gitea.pena/PenaSide/heruvym/internal/repository/minio"
	"github.com/caarlos0/env/v8"
	"github.com/minio/minio-go/v7"
	"github.com/pioz/faker"
	"log"
)

func main() {
	cfg, err := loadConfig()
	if err != nil {
		log.Fatalf("error loading config: %v", err)
	}

	if cfg.ClientHttpUrl == "" {
		log.Fatalf("error client http url is empty")
	}

	if cfg.AdminHttpUrl == "" {
		log.Fatalf("error admin http url is empty")
	}

	err = validate.ValidateMongo(cfg.ExternalCfg.Database)
	if err != nil {
		log.Fatalf("error validating mongo: %v", err)
	}

	err = validate.ValidateTgToken(cfg.TelegramToken)
	if err != nil {
		log.Fatalf("error validating telegram token: %v", err)
	}

	if cfg.TelegramChannelID == 0 {
		log.Fatalf("telegram channel id must be set")
	}

	err = validateRedis(cfg)
	if err != nil {
		log.Fatalf("error validating redis: %v", err)
	}

	err = validateS3(cfg)
	if err != nil {
		log.Fatalf("error validating s3: %v", err)
	}
}

func loadConfig() (initialize.Config, error) {
	var config initialize.Config
	if err := env.Parse(&config); err != nil {
		return config, err
	}

	return config, nil
}

func validateRedis(cfg initialize.Config) error {
	if cfg.RedisHost == "" {
		return fmt.Errorf("redis host is empty")
	}

	_, err := initialize.Redis(context.TODO(), cfg)
	if err != nil {
		return err
	}
	return nil
}

func validateS3(cfg initialize.Config) error {
	if cfg.S3Endpoint == "" {
		return fmt.Errorf("s3 endpoint is empty")
	}
	if cfg.S3AccessKey == "" {
		return fmt.Errorf("s3 access key is empty")
	}
	if cfg.S3SecretKey == "" {
		return fmt.Errorf("s3 secret key is empty")
	}

	ctx := context.TODO()

	client, err := initialize.Minio(cfg)
	if err != nil {
		return fmt.Errorf("error connect s3 in validate: %w", err)
	}

	objectName := faker.String()
	content := []byte(faker.String())
	contentType := "text/plain"

	exist, err := client.BucketExists(ctx, minioDal.Bucket)
	if err != nil {
		return fmt.Errorf("error find s3 bucket in validate: %w", err)
	}

	// не создаем бакет так как бакет могут не дать создать
	if !exist {
		log.Println("bucket does not exist")
		return nil
	}

	_, err = client.PutObject(ctx, minioDal.Bucket, objectName,
		bytes.NewReader(content), int64(len(content)),
		minio.PutObjectOptions{ContentType: contentType})
	if err != nil {
		return fmt.Errorf("error create test object: %w", err)
	}

	err = client.RemoveObject(ctx, minioDal.Bucket, objectName, minio.RemoveObjectOptions{})
	if err != nil {
		return fmt.Errorf("error remove test object: %w", err)
	}

	return nil
}