package license

import (
	"bufio"
	"fmt"
	"io"
	"io/ioutil"
	"os"
	"os/exec"
	"strings"
	"text/template"
	"time"
)

func GenerateLicense(pJ ProjectInfo, eI EnvironmentInfo, lI LicenseInfo) []byte {

	app := LicenseApplication{
		ProjectInfo:     pJ,
		EnvironmentInfo: eI,
		LicenseInfo:     lI,
		FeatureInfo: FeatureInfo{
			HA:                true,
			Hint:              true,
			FullTextIndex:     true,
			FunctionIndex:     true,
			BatchMode:         true,
			PlSql:             true,
			AddNode:           false,
			AutoPartition:     true,
			ResourceQuota:     true,
			NetChannel:        0,
			DataAutoRebalance: true,
			BlackWhiteList:    true,
			Mac:               true,
			ColPrivilege:      true,
			TransmitEncrypt:   true,
			StoreEncrypt:      true,
			BackupEncrypt:     true,
			AuditMode:         0,
			GlobalBinlogNode:  0,
			Dblink:            true,
			Json:              true,
			Spatial:           true,
			MaxParallel:       0,
			StreamLoad:        true,
		},
		ServiceCapacity: ServiceCapacity{
			InstanceNum:   0,
			TableRows:     0,
			ConnectNum:    0,
			StoreCapacity: 0,
			MaxNodeNum:    0,
			ListenChannel: 0,
		},
	}
	fileName, _ := GenerateLicenseCofingFile(app)
	ExecLicenseProgram(fileName)
	license := ReadLicenseFile(fileName)
	return license
}

// 分布式
func GenerateClusterTmpl() string {
	const tmpl = `
#用户项目信息
	project_name    = {{.ProjectInfo.ProjectName}}
	user_name       = {{.ProjectInfo.UserName}}
	user_addr       = {{.ProjectInfo.UserAddr}}
	serial_number   = {{.ProjectInfo.SerialNumber}}
#环境信息
	cpu_sn          = {{.EnvironmentInfo.CpuSN}}
	baseboard_sn    = {{.EnvironmentInfo.BaseboardSN}}
	mac_addr        = {{.EnvironmentInfo.MacAddr}}
	disk_id         = {{.EnvironmentInfo.DiskID}}
	ip_addr         = {{.EnvironmentInfo.IPAddr}}
	#License信息
	gen_date        = {{.LicenseInfo.GenDate}}
	expire_date     = {{.LicenseInfo.ExpireDate}}
	license_type    = {{.LicenseInfo.LicenseType}}
	license_version = {{.LicenseInfo.LicenseVersion}}
	hard_type       = {{.LicenseInfo.HardType}}
#企业版                                   
    ha              = true
    hint            = true
    full_text_index = true
    function_index  = true
    batch_mode      = true
    pl_sql          = true
#分布式版
    add_node            = true
    auto_partition      = true
    resource_quota      = true
    net_channel         = 0
    data_auto_rebalance = true
#其他组件
    black_white_list   = true
    mac                = true
    col_privilege      = true
    transmit_encrypt   = true
    store_encrypt      = true
    backup_encrypt     = true
    audit_mode         = 0
    global_binlog_node = 0
    dblink             = true
    json               = true
    spatial            = true
    max_parallel       = 0
    stream_load        = true
#服务能力
    instance_num   = 0
    table_rows     = 0
    connect_num    = 0
    store_capacity = 0
    max_node_num   = 0
    listen_channel = 0
	`
	return tmpl
}

// 企业版
func GenerateEnterpriseTmpl() string {

	const tmpl = `
#用户项目信息
	project_name    = {{.ProjectInfo.ProjectName}}
	user_name       = {{.ProjectInfo.UserName}}
	user_addr       = {{.ProjectInfo.UserAddr}}
	serial_number   = {{.ProjectInfo.SerialNumber}}
#环境信息
	cpu_sn          = {{.EnvironmentInfo.CpuSN}}
	baseboard_sn    = {{.EnvironmentInfo.BaseboardSN}}
	mac_addr        = {{.EnvironmentInfo.MacAddr}}
	disk_id         = {{.EnvironmentInfo.DiskID}}
	ip_addr         = {{.EnvironmentInfo.IPAddr}}
#License信息
	gen_date        = {{.LicenseInfo.GenDate}}
	expire_date     = {{.LicenseInfo.ExpireDate}}
	license_type    = {{.LicenseInfo.LicenseType}}
	license_version = {{.LicenseInfo.LicenseVersion}}
	hard_type       = {{.LicenseInfo.HardType}}
#企业版                                   
    ha              = true
    hint            = true
    full_text_index = true
    function_index  = true
    batch_mode      = true
    pl_sql          = true
#分布式版
    add_node            = false
    auto_partition      = true
    resource_quota      = true
    net_channel         = 0
    data_auto_rebalance = true
#其他组件
    black_white_list   = true
    mac                = true
    col_privilege      = true
    transmit_encrypt   = true
    store_encrypt      = true
    backup_encrypt     = true
    audit_mode         = 0
    global_binlog_node = 0
    dblink             = true
    json               = true
    spatial            = true
    max_parallel       = 0
    stream_load        = true
#服务能力
    instance_num   = 0
    table_rows     = 0
    connect_num    = 0
    store_capacity = 0
    max_node_num   = 0
    listen_channel = 0
	`
	return tmpl
}

// 标准版standard
func GenerateStandardTmpl() string {
	const tmpl = `
#用户项目信息
	project_name    = {{.ProjectInfo.ProjectName}}
	user_name       = {{.ProjectInfo.UserName}}
	user_addr       = {{.ProjectInfo.UserAddr}}
	serial_number   = {{.ProjectInfo.SerialNumber}}
#环境信息
	cpu_sn          = {{.EnvironmentInfo.CpuSN}}
	baseboard_sn    = {{.EnvironmentInfo.BaseboardSN}}
	mac_addr        = {{.EnvironmentInfo.MacAddr}}
	disk_id         = {{.EnvironmentInfo.DiskID}}
	ip_addr         = {{.EnvironmentInfo.IPAddr}}
	#License信息
	gen_date        = {{.LicenseInfo.GenDate}}
	expire_date     = {{.LicenseInfo.ExpireDate}}
	license_type    = {{.LicenseInfo.LicenseType}}
	license_version = {{.LicenseInfo.LicenseVersion}}
	hard_type       = {{.LicenseInfo.HardType}}
#企业版                                   
    ha              = true
    hint            = true
    full_text_index = true
    function_index  = true
    batch_mode      = true
    pl_sql          = true
#分布式版
    add_node            = false
    auto_partition      = true
    resource_quota      = true
    net_channel         = 0
    data_auto_rebalance = true
#其他组件
    black_white_list   = true
    mac                = true
    col_privilege      = true
    transmit_encrypt   = true
    store_encrypt      = true
    backup_encrypt     = true
    audit_mode         = 0
    global_binlog_node = 0
    dblink             = true
    json               = true
    spatial            = true
    max_parallel       = 0
    stream_load        = true
#服务能力
    instance_num   = 0
    table_rows     = 0
    connect_num    = 0
    store_capacity = 0
    max_node_num   = 0
    listen_channel = 0
	`
	return tmpl
}

// 敏捷版本
func GenerateLiteTmpl() string {
	const tmpl = `
#用户项目信息
	project_name    = {{.ProjectInfo.ProjectName}}
	user_name       = {{.ProjectInfo.UserName}}
	user_addr       = {{.ProjectInfo.UserAddr}}
	serial_number   = {{.ProjectInfo.SerialNumber}}
#环境信息
	cpu_sn          = {{.EnvironmentInfo.CpuSN}}
	baseboard_sn    = {{.EnvironmentInfo.BaseboardSN}}
	mac_addr        = {{.EnvironmentInfo.MacAddr}}
	disk_id         = {{.EnvironmentInfo.DiskID}}
	ip_addr         = {{.EnvironmentInfo.IPAddr}}
#License信息
	gen_date        = {{.LicenseInfo.GenDate}}
	expire_date     = {{.LicenseInfo.ExpireDate}}
	license_type    = {{.LicenseInfo.LicenseType}}
	license_version = {{.LicenseInfo.LicenseVersion}}
	hard_type       = {{.LicenseInfo.HardType}}
#功能列表                                   
    ha              = true
    hint            = true
    full_text_index = true
    function_index  = true
    batch_mode      = true
    pl_sql          = true
    auto_partition      = true
    net_channel         = 0
    col_privilege      = true
    transmit_encrypt   = true
    store_encrypt      = true
    backup_encrypt     = true
    global_binlog_node = 0
    json               = true
    spatial            = true
    max_parallel       = 0
    stream_load        = true
    instance_num   = 0
    table_rows     = 0
    connect_num    = 0
    store_capacity = 0
    max_node_num   = 0
    listen_channel = 0
	`
	return tmpl
}

// 个人版本
func GeneratePersonTmpl() string {
	const tmpl = `
#用户项目信息
	project_name    = {{.ProjectInfo.ProjectName}}
	user_name       = {{.ProjectInfo.UserName}}
	user_addr       = {{.ProjectInfo.UserAddr}}
	serial_number   = {{.ProjectInfo.SerialNumber}}
#环境信息
	cpu_sn          = {{.EnvironmentInfo.CpuSN}}
	baseboard_sn    = {{.EnvironmentInfo.BaseboardSN}}
	mac_addr        = {{.EnvironmentInfo.MacAddr}}
	disk_id         = {{.EnvironmentInfo.DiskID}}
	ip_addr         = {{.EnvironmentInfo.IPAddr}}
#License信息
	gen_date        = {{.LicenseInfo.GenDate}}
	expire_date     = {{.LicenseInfo.ExpireDate}}
	license_type    = {{.LicenseInfo.LicenseType}}
	license_version = {{.LicenseInfo.LicenseVersion}}
	hard_type       = {{.LicenseInfo.HardType}}
#企业版                                   
    ha              = true
    hint            = true
    full_text_index = true
    function_index  = true
    batch_mode      = true
    pl_sql          = true
#分布式版
    add_node            = false
    auto_partition      = true
    resource_quota      = true
    net_channel         = 0
    data_auto_rebalance = true
#其他组件
    black_white_list   = true
    mac                = true
    col_privilege      = true
    transmit_encrypt   = true
    store_encrypt      = true
    backup_encrypt     = true
    audit_mode         = 0
    global_binlog_node = 0
    dblink             = true
    json               = true
    spatial            = true
    max_parallel       = 0
    stream_load        = true
#服务能力
    instance_num   = 0
    table_rows     = 0
    connect_num    = 0
    store_capacity = 0
    max_node_num   = 0
    listen_channel = 0
	`
	return tmpl
}

func GenerateLicenseCofingFile(app LicenseApplication) (string, error) {

	var tmpl string
	switch app.LicenseInfo.LicenseType {
	case 4: //分布式
		tmpl = GenerateClusterTmpl()
	case 3: //企业版
		tmpl = GenerateEnterpriseTmpl()
	case 1: //个人版
		tmpl = GeneratePersonTmpl()
	case 2: //标准版
		tmpl = GenerateStandardTmpl()
	case 6: //敏捷版
		tmpl = GenerateLiteTmpl()
	}

	// const tmpl = `#用户项目信息
	// project_name    = {{.ProjectInfo.ProjectName}}
	// user_name       = {{.ProjectInfo.UserName}}
	// user_addr       = {{.ProjectInfo.UserAddr}}
	// serial_number   = {{.ProjectInfo.SerialNumber}}
	// #环境信息
	// cpu_sn          = {{.EnvironmentInfo.CpuSN}}
	// baseboard_sn    = {{.EnvironmentInfo.BaseboardSN}}
	// mac_addr        = {{.EnvironmentInfo.MacAddr}}
	// disk_id         = {{.EnvironmentInfo.DiskID}}
	// ip_addr         = {{.EnvironmentInfo.IPAddr}}
	// #License信息
	// gen_date        = {{.LicenseInfo.GenDate}}
	// expire_date     = {{.LicenseInfo.ExpireDate}}
	// license_type    = {{.LicenseInfo.LicenseType}}
	// license_version = {{.LicenseInfo.LicenseVersion}}
	// hard_type       = {{.LicenseInfo.HardType}}
	// #功能信息
	// ha              = {{.FeatureInfo.HA}}
	// hint            = {{.FeatureInfo.Hint}}
	// full_text_index = {{.FeatureInfo.FullTextIndex}}
	// function_index  = {{.FeatureInfo.FunctionIndex}}
	// batch_mode      = {{.FeatureInfo.BatchMode}}
	// pl_sql          = {{.FeatureInfo.PlSql}}
	// #分布式信息
	// add_node            = {{.FeatureInfo.AddNode}}
	// auto_partition      = {{.FeatureInfo.AutoPartition}}
	// resource_quota      = {{.FeatureInfo.ResourceQuota}}
	// net_channel         = {{.FeatureInfo.NetChannel}}
	// data_auto_rebalance = {{.FeatureInfo.DataAutoRebalance}}
	// #其他组件
	// black_white_list   = {{.FeatureInfo.BlackWhiteList}}
	// mac                = {{.FeatureInfo.Mac}}
	// col_privilege      = {{.FeatureInfo.ColPrivilege}}
	// transmit_encrypt   = {{.FeatureInfo.TransmitEncrypt}}
	// store_encrypt      = {{.FeatureInfo.StoreEncrypt}}
	// backup_encrypt     = {{.FeatureInfo.BackupEncrypt}}
	// audit_mode         = {{.FeatureInfo.AuditMode}}
	// global_binlog_node = {{.FeatureInfo.GlobalBinlogNode}}
	// dblink             = {{.FeatureInfo.Dblink}}
	// json               = {{.FeatureInfo.Json}}
	// spatial            = {{.FeatureInfo.Spatial}}
	// max_parallel       = {{.FeatureInfo.MaxParallel}}
	// stream_load        = {{.FeatureInfo.StreamLoad}}
	// #服务能力
	// instance_num   = {{.ServiceCapacity.InstanceNum}}
	// table_rows     = {{.ServiceCapacity.TableRows}}
	// connect_num    = {{.ServiceCapacity.ConnectNum}}
	// store_capacity = {{.ServiceCapacity.StoreCapacity}}
	// max_node_num   = {{.ServiceCapacity.MaxNodeNum}}
	// listen_channel = {{.ServiceCapacity.ListenChannel}}
	// `

	// 创建模板并解析
	t, err := template.New("config").Parse(tmpl)
	if err != nil {
		fmt.Println("Error creating template:", err)
		return "", err
	}

	fileName := fmt.Sprintf("lic_op_%s_%s.cfg", time.Now().Format("20060102150405"), app.UserName)
	// 创建文件
	file, err := os.Create(fileName)
	if err != nil {
		fmt.Println("Error creating file:", err)
		return "", err
	}

	// // 使用 bytes.Buffer 捕获模板渲染结果
	// var buf bytes.Buffer

	// // 将模板渲染到缓冲区中
	// err = t.Execute(&buf, app)
	// if err != nil {
	// 	log.Fatalf("Executing template failed: %v", err)
	// }

	// // 将渲染结果转换为字符串
	// renderedString := buf.String()

	// // 打印渲染的字符串（可选）
	// fmt.Println("renderedString", renderedString)

	// fmt.Println("这该死的app：", app)
	// 执行模板并写入文件
	err = t.Execute(file, app)
	if err != nil {
		fmt.Println("Error executing template:", err)
	}

	fileNameToCRLF := fmt.Sprintf("CRLF_" + fileName)
	//fmt.Println("这是什么玩意", fileNameToCRLF, fileName)
	err = convertLFtoCRLF(fileName, fileNameToCRLF)
	if err != nil {
		fmt.Printf("转换文件时出错: %v\n", err)
	} else {
		fmt.Println("文件转换成功!")
	}
	defer file.Close()
	//删除 fileNameToCRLF
	// err = os.Remove(fileName)
	// if err != nil {
	// 	fmt.Println("Error removing file:", err)
	// 	return "", err
	// } else {
	// 	fmt.Println("File successfully removed")
	// }
	return fileNameToCRLF, nil
}

func ExecLicenseProgram(fileName string) {
	cmd2 := exec.Command("pwd")

	// 获取标准输出和标准错误
	output2, err := cmd2.CombinedOutput()
	if err != nil {
		fmt.Printf("执行命令时出错: %v\n", err)
		return
	}

	// 打印输出
	fmt.Printf("PWD输出: %s\n", output2)
	// 定义要调用的可执行程序及其参数
	cmd := exec.Command("/home/gtong/license/lic_go/xugu_license/pkg/lic/xugu_linux_x86_64_20240920_license-test", "-gen_license", fileName)

	// 获取标准输出和标准错误
	output, err := cmd.CombinedOutput()
	if err != nil {
		fmt.Printf("执行命令时出错: %v\n", err)
		return
	}

	// 打印输出
	fmt.Printf("输出: %s\n", output)

}

func ReadLicenseFile(fileName string) []byte {
	// 打开文件
	localFile := "license.dat@" + fileName
	file, err := os.Open(localFile)
	if err != nil {
		fmt.Printf("无法打开文件: %v\n", err)
		return nil
	}
	defer file.Close()

	// 读取文件内容
	content, err := ioutil.ReadAll(file)
	if err != nil {
		fmt.Printf("无法读取文件: %v\n", err)
		return nil
	}
	return content
}

func convertLFtoCRLF(inputFile, outputFile string) error {
	// 打开输入文件
	inFile, err := os.Open(inputFile)
	if err != nil {
		return fmt.Errorf("无法打开输入文件: %v", err)
	}
	defer inFile.Close()

	// 创建输出文件
	outFile, err := os.Create(outputFile)
	if err != nil {
		return fmt.Errorf("无法创建输出文件: %v", err)
	}
	defer outFile.Close()

	reader := bufio.NewReader(inFile)
	writer := bufio.NewWriter(outFile)

	for {
		line, err := reader.ReadString('\n')
		if err != nil && err != io.EOF {
			return fmt.Errorf("读取文件时出错: %v", err)
		}
		if err == io.EOF {
			if len(line) > 0 {
				line = strings.TrimRight(line, "\n")
				writer.WriteString(line + "\r\n")
			}
			break
		}

		// 将 LF 转换为 CRLF
		line = strings.TrimRight(line, "\n")
		writer.WriteString(line + "\r\n")
	}

	writer.Flush()
	return nil
}