package main

import (
	"C"
	"fmt"
	"time"

	"github.com/yitter/idgenerator-go/regworkerid"
)

func main() {

	address := "127.0.0.1:6379"
	password := ""
	masterName := ""

	addrChar := C.CString(address)
	passChar := C.CString(password)
	masterNameChar := C.CString(masterName)

	workerIdList := RegisterMany(addrChar, passChar, 4, masterNameChar, 3, 5)
	for _, value := range workerIdList {
		fmt.Println("注册的WorkerId:", value)
	}

	id := RegisterOne(addrChar, passChar, 4, masterNameChar, 0)
	fmt.Println("注册的WorkerId:", id)

	fmt.Println("end")
	time.Sleep(time.Duration(300) * time.Second)
}

// RegisterOne 注册一个 WorkerId，会先注销所有本机已注册的记录
// address: Redis连接地址，单机模式示例：127.0.0.1:6379，哨兵/集群模式示例：127.0.0.1:26380,127.0.0.1:26381,127.0.0.1:26382
// password: Redis连接密码
// db: Redis指定存储库，示例：1
// sentinelMasterName: Redis 哨兵模式下的服务名称，示例：mymaster，非哨兵模式传入空字符串即可
// maxWorkerId: WorkerId 最大值，示例：63
//export RegisterOne
func RegisterOne(address *C.char, password *C.char, db int, sentinelMasterName *C.char, maxWorkerId int32) int32 {
	return regworkerid.RegisterOne(regworkerid.RegisterConf{
		Address:     C.GoString(address),
		Password:    C.GoString(password),
		DB:          db,
		MasterName:  C.GoString(sentinelMasterName),
		MaxWorkerId: maxWorkerId,
	})
}

// RegisterMany 注册多个 WorkerId，会先注销所有本机已注册的记录
// address: Redis连接地址，单机模式示例：127.0.0.1:6379，哨兵/集群模式示例：127.0.0.1:26380,127.0.0.1:26381,127.0.0.1:26382
// password: Redis连接密码
// db: Redis指定存储库，示例：1
// sentinelMasterName: Redis 哨兵模式下的服务名称，示例：mymaster，非哨兵模式传入空字符串即可
// maxWorkerId: WorkerId 最大值，示例：63
// totalCount: 获取N个WorkerId，示例：5
//export RegisterMany
func RegisterMany(address *C.char, password *C.char, db int, sentinelMasterName *C.char, maxWorkerId int32, totalCount int32) []int32 {
	return regworkerid.RegisterMany(regworkerid.RegisterConf{
		Address:     C.GoString(address),
		Password:    C.GoString(password),
		DB:          db,
		MasterName:  C.GoString(sentinelMasterName),
		MaxWorkerId: maxWorkerId,
		TotalCount:  totalCount,
	})
}

// UnRegister 注销本机已注册的 WorkerId
//export UnRegister
func UnRegister() {
	regworkerid.UnRegister()
}

// Validate 检查本地WorkerId是否有效（0-有效，其它-无效）
//export Validate
func Validate(workerId int32) int32 {
	return regworkerid.Validate(workerId)
}

// To Build a dll/so：

// windows:
// go build -o ./target/yitidgengo.dll -buildmode=c-shared main.go
// // go build -o ./target/yitidgengo.dll -buildmode=c-shared main.go reg.go

// linux init: go install -buildmode=shared -linkshared std
// go build -o ./target/yitidgengo.so -buildmode=c-shared main.go
// go build -o ./target/yitidgengo.so -buildmode=c-shared main.go reg.go

// https://books.studygolang.com/advanced-go-programming-book/ch2-cgo/ch2-09-static-shared-lib.html
