package main

import (
	"bytes"
	"database/sql"
	"encoding/json"
	"errors"
	"flag"
	"fmt"
	"io"
	"io/ioutil"
	"log"
	"net/http"
	"net/url"
	"os"
	"os/signal"
	"time"

	log2 "github.com/sirupsen/logrus"
	"gorm.io/driver/mysql"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
	"gorm.io/gorm/schema"
)

var apiUrl, dsn, contracts, apiKey, apiSecret, token string
var size, timeout, expired, executionTime, sleepTime int

func main() {
	flag.StringVar(&apiUrl, "url", "https://test-dna.bitfactory.cn", "激活接口地址")
	flag.StringVar(&dsn, "dsn", "root:rootPassword@tcp(192.168.150.40:23306)/dna_test", "mysql连接地址")
	flag.StringVar(&contracts, "contract", "", "合约地址")
	flag.StringVar(&apiKey, "apiKey", "", "apiKey")
	flag.StringVar(&apiSecret, "apiSecret", "", "apiSecret")
	flag.IntVar(&size, "size", 1, "批处理数量")
	flag.IntVar(&timeout, "timeout", 3, "请求超时时间")
	flag.IntVar(&expired, "expired", 6000, "token有效时间，单位秒")
	flag.IntVar(&executionTime, "execution_time", 60, "mysql execution_time")
	flag.IntVar(&sleepTime, "sleep_time", 0, "sleep time")

	flag.Parse()

	if apiUrl == "" {
		log2.Error("apiUrl is required")
		return
	}
	if dsn == "" {
		log2.Error("dsn is required")
		return
	}
	if contracts == "" {
		log2.Error("contract is required")
		return
	}
	if apiKey == "" {
		log2.Error("apiKey is required")
		return
	}
	if apiSecret == "" {
		log2.Error("apiSecret is required")
		return
	}
	if size < 1 || size > 100 {
		log2.Error("size must be between 1 and 100")
		return
	}
	if sleepTime < 0 {
		log2.Error("sleep_time must be greater than 0 ")
		return
	}

	utcZone := time.FixedZone("UTC", 0)
	time.Local = utcZone

	// 连接mysql
	newLogger := logger.New(
		log.New(os.Stdout, "\r\n", log.LstdFlags), // io writer
		logger.Config{
			SlowThreshold: time.Second,   // 慢 SQL 阈值
			LogLevel:      logger.Silent, // Log level
			Colorful:      false,         // 禁用彩色打印
		},
	)

	dsn := fmt.Sprintf("%s?charset=utf8&parseTime=True&loc=Local&time_zone=%s&max_execution_time=%d", dsn, url.QueryEscape("'UTC'"), executionTime)
	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{Logger: newLogger,
		NamingStrategy: schema.NamingStrategy{
			TablePrefix:   "t_",
			SingularTable: false,
		},
	})
	if err != nil {
		log2.WithError(err).Error("init db failed")
		return
	}

	ticker := time.NewTicker(time.Duration(expired) * time.Second)
	quit := make(chan os.Signal, 1)
	signal.Notify(quit, os.Interrupt)

	go func() {
		for {
			select {
			case <-ticker.C:
				// 更新token
				var err error
				token, err = getToken()
				if err != nil {
					log2.WithError(err).Error("update token failed")
					return
				}

			case <-quit:
				// 接收到退出通知 停止定时器和退出 Goroutine
				ticker.Stop()
				close(quit)
				return

			}

		}
	}()

	// 查询要处理的数据的最大主键id
	var total sql.NullInt64
	err = db.Model(&DnaClasse{}).Select("Max(id)").Where("status", 2).Scan(&total).Error
	if err != nil {
		log2.WithError(err).Error("query classes total number failed")
		return
	}
	if !total.Valid {
		log2.Error("there is no unverified data left")
		return
	}
	token, err = getToken()
	if err != nil {
		log2.WithError(err).Error("update token failed")
		return
	}
	var id int64
	for id < total.Int64 {
		time.Sleep(time.Millisecond * time.Duration(sleepTime))
		var list []DnaClasse
		err = db.Model(&DnaClasse{}).Where("status", 2).Where("id > ?", id).Limit(size).Order("id asc").Find(&list).Error
		if err != nil {
			log2.WithError(err).Error("query not active classes failed")
			continue
		}
		if len(list) == 0 {
			log2.Info("there is no unverified data left")
			break
		}
		sid := list[0].Id
		eid := list[len(list)-1].Id
		err = db.Transaction(func(tx *gorm.DB) error {
			var classReq []ClassReq
			// 更新本批类别状态为已激活
			result := tx.Model(&DnaClasse{}).Where("status", 2).Where("id > ?", id).Limit(size).Order("id asc").Update("status", 1)
			if result.Error != nil {
				log2.WithField("start", sid).WithField("end", eid).WithError(result.Error).Error("update classes status failed")
				return err
			}
			logger := log2.WithField("start", sid).WithField("end", eid)

			// 生成批量数据
			for j := 0; j < len(list); j++ {
				// 查询类别下nft总数
				var nftNumber int64
				err = tx.Model(&DnaNft{}).Where("class_id", list[j].ClassId).Where("status in (1,2,3)").Count(&nftNumber).Error
				if err != nil {
					log2.WithField("id", list[j].Id).WithError(err).Error("query classes total nft number failed")
					result := tx.Model(&DnaClasse{}).Where("id", list[j].Id).Updates(map[string]interface{}{
						"status":  2, // 更新状态为未认证
						"err_msg": fmt.Sprintf("query classes total nft number failed: %s", err.Error()),
					})
					if result.Error != nil {
						log2.WithField("id", list[j].Id).WithError(result.Error).Error("update classes status failed")
						return result.Error
					}
					continue
				}

				if list[j].Name == "" || list[j].CollectIssuer == "" || list[j].Url == "" {
					log2.WithField("id", list[j].Id).Error("classes name/collect_issuer/url is required")
					result = tx.Model(&DnaClasse{}).Where("id", list[j].Id).Updates(map[string]interface{}{
						"status":  3, // 更新状态为认证失败
						"err_msg": "classes name/collect_issuer/url is required",
					})
					if result.Error != nil {
						log2.WithField("id", list[j].Id).WithError(result.Error).Error("update classes status failed")
						return result.Error // 数据库错误 回滚
					}
					continue
				}
				if len([]rune(list[j].Name)) > 50 {
					log2.WithField("id", list[j].Id).Error("class name length illegal")
					result := tx.Model(&DnaClasse{}).Where("id", list[j].Id).Updates(map[string]interface{}{
						"status":  3, // 更新状态为未认证
						"err_msg": "class name length illegal",
					})
					if result.Error != nil {
						log2.WithField("id", list[j].Id).WithError(result.Error).Error("update classes status failed")
						return result.Error // 数据库错误 回滚
					}
					continue
				}

				classReq = append(classReq, ClassReq{
					SeriesName:     list[j].Name,
					SeriesIssuer:   list[j].CollectIssuer,
					ExternalUrl:    list[j].Url,
					SeriesDes:      list[j].Description,
					SeriesId:       []string{list[j].ClassId},
					TotalDNA:       nftNumber,
					AssetContracts: contracts,
				})
			}
			// 批量认证
			objJson, err := json.Marshal(&Req{
				Data: classReq,
			})
			if err != nil {
				logger.WithError(err).Error("marshal request body failed")
				return err
			}
			payload := bytes.NewReader(objJson)
			url := fmt.Sprintf("%s/auth/api/v1/series", apiUrl)
			req, err := http.NewRequest("POST", url, payload)
			if err != nil {
				logger.WithError(err).Error("build request failed")
				return err
			}
			req.Header.Add("Content-Type", "application/json")
			req.Header.Add("accessToken", token)

			client := &http.Client{Timeout: time.Duration(timeout) * time.Second}
			res, err := client.Do(req)
			if err != nil {
				logger.WithError(err).Error("request failed")
				return err
			}
			body, err := io.ReadAll(res.Body)
			if err != nil {
				logger.WithError(err).Error("read body failed")
				res.Body.Close()
				return err
			}
			res.Body.Close()
			var resp Resp
			err = json.Unmarshal(body, &resp)
			if err != nil {
				logger.WithError(err).Error("unmarshal response failed")
				return err
			}
			if resp.RetCode != http.StatusOK || resp.RetMsg != "ok" {
				logger.Error("active class failed: ", resp.RetMsg)
				return errors.New(resp.RetMsg)
			}
			return nil
		})

		if err != nil {
			// 更新状态
			result := db.Model(&DnaClasse{}).Where("status", 2).Where("id > ?", id).Limit(size).Order("id asc").Updates(map[string]interface{}{
				"status":  3, // 更新状态为认证失败
				"err_msg": err.Error(),
			})
			id = list[len(list)-1].Id
			if result.Error != nil {
				log2.WithField("start", sid).WithField("end", eid).WithError(result.Error).Error("update classes status failed")
				continue
			}
			log2.WithField("start", sid).WithField("end", eid).Info("本次处理区间")
			continue
		}
		id = list[len(list)-1].Id
		log2.WithField("start", sid).WithField("end", eid).Info("本次认证成功区间")
	}
	fmt.Println()
	log2.Info("=========  finish   ============")
	fmt.Println()
	quit <- os.Interrupt
	<-quit
}

func getToken() (string, error) {
	url := fmt.Sprintf("%s/registration/api/v2/getToken?apiKey=%s&apiSecret=%s", apiUrl, apiKey, apiSecret)

	req, err := http.NewRequest("GET", url, nil)
	if err != nil {
		log2.WithError(err).Error("build request failed")
		return "", err
	}
	req.Header.Add("Content-Type", "application/json")
	client := &http.Client{Timeout: time.Duration(timeout) * time.Second}
	res, err := client.Do(req)
	if err != nil {
		log2.WithError(err).Error("request failed")
		return "", err

	}
	body, err := ioutil.ReadAll(res.Body)
	if err != nil {
		log2.WithError(err).Error("read body failed")
		return "", err

	}
	var resp Resp
	err = json.Unmarshal(body, &resp)
	if err != nil {
		log2.WithError(err).Error("unmarshal response failed")
		return "", err

	}
	if resp.RetCode != http.StatusOK || resp.RetMsg != "ok" {
		log2.Error(resp.RetMsg)
		return "", err
	}
	return resp.AccessToken, nil
}

type TokenResp struct {
	Data []ClassReq `json:"data"`
}

type Req struct {
	Data []ClassReq `json:"data"`
}

type ClassReq struct {
	SeriesName     string   `json:"seriesName"`
	SeriesIssuer   string   `json:"seriesIssuer"`
	ExternalUrl    string   `json:"externalUrl"`
	SeriesDes      string   `json:"seriesDes"`
	SeriesId       []string `json:"seriesId"`
	TotalDNA       int64    `json:"totalDNA"`
	AssetContracts string   `json:"asset_contracts"`
}

type Resp struct {
	RetCode     int    `json:"retCode"`
	RetMsg      string `json:"retMsg"`
	AccessToken string `json:"accessToken"`
}

// DNA类别认证表
type DnaClasse struct {
	Id            int64     `gorm:"column:id;type:bigint(20) unsigned;primary_key;AUTO_INCREMENT;comment:主键id" json:"id"`
	ClassId       string    `gorm:"column:class_id;type:char(42);comment:类别ID;NOT NULL" json:"class_id"`
	Name          string    `gorm:"column:name;type:varchar(100);comment:类别名称;NOT NULL" json:"name"`
	Url           string    `gorm:"column:url;type:varchar(100);comment:类别url;NOT NULL" json:"url"`
	Description   string    `gorm:"column:description;type:varchar(200);comment:类别描述;NOT NULL" json:"description"`
	Status        int       `gorm:"column:status;type:tinyint(4);default:2;comment:dna认证状态 1：已认证 2：未认证;NOT NULL" json:"status"`
	CollectIssuer string    `gorm:"column:collect_issuer;type:varchar(50);comment:集合发行方;NOT NULL" json:"collect_issuer"`
	CreatedAt     time.Time `gorm:"<-:false"`
	UpdatedAt     time.Time `gorm:"<-:false"`
}

// DNA NFT认证表
type DnaNft struct {
	Id          uint64    `gorm:"column:id;type:bigint(20) unsigned;primary_key;AUTO_INCREMENT" json:"id"`
	ClassId     string    `gorm:"column:class_id;type:char(42);comment:类别ID;NOT NULL" json:"class_id"`
	TokenId     int64     `gorm:"column:token_id;type:bigint(20);default:0;comment:NFT ID;NOT NULL" json:"token_id"`
	Owner       string    `gorm:"column:owner;type:char(42);comment:资产拥有者;NOT NULL" json:"owner"`
	Name        string    `gorm:"column:name;type:varchar(100);comment:资产名称;NOT NULL" json:"name"`
	Url         string    `gorm:"column:url;type:varchar(200);comment:图片url;NOT NULL" json:"url"`
	DisplayUrl  string    `gorm:"column:display_url;type:varchar(200);comment:缩略图url;NOT NULL" json:"display_url"`
	Hash        string    `gorm:"column:hash;type:varchar(100);comment:图片哈希;NOT NULL" json:"hash"`
	Price       float64   `gorm:"column:price;type:decimal(10,2);default:0.00;comment:发行加价格;NOT NULL" json:"price"`
	Description string    `gorm:"column:description;type:varchar(255);comment:资产描述;NOT NULL" json:"description"`
	Status      int       `gorm:"column:status;type:tinyint(4);default:2;comment:dna认证状态 1:已认证 2：未认证;NOT NULL" json:"status"`
	Timestamp   time.Time `gorm:"column:timestamp;type:datetime;comment:交易上链时间" json:"timestamp"`
	TxId        int64     `gorm:"column:tx_id;type:bigint(20);default:0;comment:交易表主键id;NOT NULL" json:"tx_id"`
	CreatedAt   time.Time `gorm:"<-:false"`
	UpdatedAt   time.Time `gorm:"<-:false"`
}