package migration

import (
	"IotAdmin/core/sdk"
	"IotAdmin/core/sdk/config"
	"IotAdmin/core/sdk/pkg"
	"IotAdmin/migration/models"
	"bytes"
	"fmt"
	"html/template"
	"strconv"
	"time"
)

func GenFile(vbAdmin bool) error {
	t1, err := template.ParseFiles("template/migrate.template")
	if err != nil {
		return err
	}
	m := map[string]string{}
	m["GenerateTime"] = strconv.FormatInt(time.Now().UnixNano()/1e6, 10)
	m["Package"] = "version_local"
	if vbAdmin {
		m["Package"] = "version"
	}
	var b1 bytes.Buffer
	err = t1.Execute(&b1, m)
	if vbAdmin {
		pkg.FileCreate(b1, "./migration/version/"+m["GenerateTime"]+"_migrate.go")
	} else {
		pkg.FileCreate(b1, "./migration/version-local/"+m["GenerateTime"]+"_migrate.go")
	}
	return nil
}

func MigrateModel(host string) error {
	if host == "" {
		host = "*"
	}
	db := sdk.Runtime.GetDbByKey(host)
	if db == nil {
		if len(sdk.Runtime.GetDb()) == 1 && host == "*" {
			for k, v := range sdk.Runtime.GetDb() {
				db = v
				host = k
				break
			}
		}
	}
	if db == nil {
		return fmt.Errorf("未找到数据库配置")
	}
	if config.DatabasesConfig[host].Driver == "mysql" {
		//初始化数据库时候用
		db.Set("gorm:table_options", "ENGINE=InnoDB CHARSET=utf8mb4")
	}
	err := db.Debug().AutoMigrate(&models.Migration{})
	if err != nil {
		return err
	}
	Migrate.SetDb(db.Debug())
	Migrate.Migrate()
	return err
}