package code

import (
	. "../common"
	"../db"
	"errors"
	"fmt"
	"io/ioutil"
	"net/http"
	"os"
	"path/filepath"
	"strings"
)

type MakeCode struct {
	IndexMenus   Map
	TableConfig  Map
	TableColumns map[string]map[string]Map
	Config       Map
	Error
}

func (that *MakeCode) Db2JSON(name string, path string, db db.HoTimeDB) {
	isMake := false
	idSlice := Slice{}

	if that.TableColumns == nil {
		that.TableColumns = make(map[string]map[string]Map)
	}

	//加载配置文件
	btes, err := ioutil.ReadFile(path)
	Config["name"] = name
	that.Config = DeepCopyMap(Config).(Map)
	if err == nil {
		cmap := Map{}
		//文件是否损坏
		cmap.JsonToMap(string(btes), &that.Error)
		for k, v := range cmap {
			that.Config[k] = v //程序配置
			Config[k] = v      //系统配置
		}
	} else {
		that.Error.SetError(errors.New("配置文件不存在，或者配置出错，使用缺省默认配置"))
	}
	that.IndexMenus = Map{}
	menusConfig := that.Config.GetSlice("menus")
	//将配置写入到内存中仅作为判断用
	if menusConfig != nil {
		for kmenu, _ := range menusConfig {
			menu := menusConfig.GetMap(kmenu)
			if menu != nil {
				mname := menu.GetString("table")
				if mname == "" { //如果为空则不是表格
					mname = menu.GetString("name")
				}
				that.IndexMenus[mname] = menu
				childMenus := menu.GetSlice("menus")
				if childMenus != nil {
					for ckmenu, _ := range childMenus {
						cmenu := childMenus.GetMap(ckmenu)
						if cmenu != nil {
							cname := cmenu.GetString("table")
							if cmenu.GetString("table") == "" {
								continue
							}
							that.IndexMenus[mname+"/"+cname] = cmenu
						}

					}

				}

			}

		}
	}

	that.TableConfig = that.Config.GetMap("tables")
	if that.TableConfig == nil {
		that.TableConfig = Map{}
	}

	for tableName, _ := range that.TableConfig {

		columns := that.TableConfig.GetMap(tableName).GetSlice("columns")
		//初始化
		if that.TableColumns[tableName] == nil {
			that.TableColumns[tableName] = map[string]Map{}
		}
		//注入源数据
		for index, _ := range columns {
			columnsName := columns.GetMap(index).GetString("name")
			that.TableColumns[tableName][columnsName] = columns.GetMap(index)
		}

	}

	myInit := strings.Replace(InitTpt, "{{name}}", name, -1)
	ctrList := ""

	nowTables := make([]Map, 0)
	if db.Type == "mysql" {
		nowTables = db.Select("INFORMATION_SCHEMA.TABLES", "TABLE_NAME as name,TABLE_COMMENT as label", Map{"TABLE_SCHEMA": db.DBName})
	}
	if db.Type == "sqlite" {
		nowTables = db.Select("sqlite_sequence", "name")
	}
	//idSlice=append(idSlice,nowTables)
	for _, v := range nowTables {
		if that.TableConfig.GetMap(v.GetString("name")) == nil {
			if v.GetString("label") == "" {
				v["label"] = v.GetString("name")
			}
			that.TableConfig[v.GetString("name")] = Map{
				"label":   v.GetString("label"),
				"table":   v.GetString("name"),
				"auth":    []string{"add", "delete", "edit", "info"},
				"columns": []Map{},
				"search": []Map{
					//{"type": "tree", "name": "oid", "label": "组织", "table": "organization", "showName": "label", "children": "children"},
					{"type": "text", "name": "keyword", "label": "请输入关键词", "value": nil},
					{"type": "date", "name": "date", "label": "时间段", "value": nil},
					{"type": "select", "name": "state", "label": "状态", "value": nil,
						"option": []Map{
							{"name": "正常", "value": 0},
							{"name": "异常", "value": 1},
							{"name": "全部", "value": nil},
						},
					},
				},
			}
		}
		//else {
		//	if !(that.TableConfig.GetMap(v.GetString("name")).GetString("label") != "备注" &&
		//		v.GetString("label") == "备注") {
		//		that.TableConfig.GetMap(v.GetString("name"))["label"] = v.GetString("label")
		//	}
		//
		//}
		//初始化
		if that.TableColumns[v.GetString("name")] == nil {
			that.TableColumns[v.GetString("name")] = make(map[string]Map)
		}

		tableInfo := make([]Map, 0)
		if db.Type == "mysql" {
			tableInfo = db.Select("INFORMATION_SCHEMA.COLUMNS", "COLUMN_NAME AS name,COLUMN_TYPE AS type,COLUMN_COMMENT AS label", Map{"AND": Map{"TABLE_SCHEMA": db.DBName, "TABLE_NAME": v.GetString("name")}})
		}
		if db.Type == "sqlite" {
			tableInfo = db.Query("pragma table_info([" + v.GetString("name") + "]);")
		}

		idSlice = append(idSlice, tableInfo)
		for _, info := range tableInfo {
			if info.GetString("label") == "" {
				info["label"] = info.GetString("name")
			}
			coloum := that.TableColumns[v.GetString("name")][info.GetString("name")]

			if coloum == nil {
				//备注以空格隔开，空格后的是其他备注
				indexNum := strings.Index(info.GetString("label"), " ")
				if indexNum >= 0 {
					info["label"] = info.GetString("label")[:]
				}

				//根据类型判断真实类型
				for k, v := range ColumnDataType {
					if strings.Contains(info.GetString("type"), k) {
						info["type"] = v
						break
					}
				}
				coloum = Map{
					"name":  info.GetString("name"),
					"type":  info.GetString("type"),
					"label": info.GetString("label"),
					//"add":   false, "info": false, "edit": false, "list": true,
					//"must": false,
				}

				for _, v := range ColumnNameType {
					if (v.Strict && coloum.GetString("name") == v.Name) || strings.Contains(coloum.GetString("name"), v.Name) {
						//全部都不需要则不加入
						if v.Edit == false && v.List == false && v.Info == false {
							coloum["notUse"] = true
							break
						}
						if v.Info == false {
							coloum["info"] = v.Info
						}
						if v.Edit == false {
							coloum["edit"] = v.Edit
							coloum["add"] = v.Edit
						}
						if v.List == false {
							coloum["list"] = v.List
						}
						if v.Must == true {
							coloum["must"] = v.Must
						}
						if v.Type != "" {
							coloum["type"] = v.Type
						}
						break
					}
				}
				if !coloum.GetBool("notUse") {
					that.TableConfig.GetMap(v.GetString("name"))["columns"] = append(that.TableConfig.GetMap(v.GetString("name")).GetSlice("columns"), coloum)
				}

			}
			//else {
			//
			//	//if !(coloum.GetString("label") != "备注" && info.GetString("label") == "备注") {
			//	//	coloum["label"] = info.GetString("label")
			//	//}
			//	//coloum["type"] = info.GetString("type")
			//}

			//暂时不关闭参数，保证表数据完全读取到
			that.TableColumns[v.GetString("name")][info.GetString("name")] = coloum

		}

		//创建模块文件
		//判断文件是否存在
		//_, err := os.OpenFile(name+"/"+v.GetString("name"), os.O_RDONLY, os.ModePerm)
		_, err := os.Stat(name + "/" + v.GetString("name") + ".go")
		if err != nil { //文件不存在，则根据模板创建
			myCtr := strings.Replace(CtrTpt, "{{name}}", name, -1)
			myCtr = strings.Replace(myCtr, "{{table}}", v.GetString("name"), -1)
			_ = os.MkdirAll(name, os.ModeDir)
			err = ioutil.WriteFile(name+"/"+v.GetString("name")+".go", []byte(myCtr), os.ModePerm)
			if err != nil {
				that.Error.SetError(err)
			}
			isMake = true
		}

		ctrList = ctrList + `"` + v.GetString("name") + `":` + v.GetString("name") + "Ctr,\r\n    "

	}

	that.Config["tables"] = that.TableConfig

	//生成id，判断数据库是否有改变，以保证数据库和配置文件匹配唯一
	id := Md5(ObjToStr(idSlice))

	if id == that.Config.GetString("id") {
		if isMake { //有生成包文件
			fmt.Println("有新的业务代码生成，请重新运行")
			os.Exit(-1)
		}
		return
	}
	//数据生成完后进一步解析
	for fk, fv := range that.TableColumns {

		//判断是否将表写入menu中
		isMenusGet := false //判断是否被目录收录
		for indexKey, _ := range that.IndexMenus {
			indexCode := strings.Index(indexKey, fk)
			//如果相等或者表名在目录中已经设置（主要前一位是/并且他是最后一个字符串）
			if indexKey == fk || (indexCode != -1 && indexKey[indexCode-1] == '/' && indexKey[indexCode:] == fk) {
				isMenusGet = true
				break
			}
		}

		//目录没有收录
		if !isMenusGet {

			tablePrefixCode := strings.Index(fk, "_")
			isNewPrefix := false //假定表名没有前缀
			prefixName := ""
			//并且代表有前缀，根据数据表分库设定使用
			if tablePrefixCode != -1 {
				prefixName = fk[:tablePrefixCode]
			}
			if tablePrefixCode != -1 {
				for ck, _ := range that.TableColumns {
					//判断不止一个前缀相同
					if strings.Index(ck, prefixName) == 0 && ck != prefixName && ck != fk {
						isNewPrefix = true
						break
					}
				}
			}
			menuIns := Map{"label": that.TableConfig.GetMap(fk).GetString("label"), "table": fk}
			//多耗费一点内存
			mMenu := Map{"menus": Slice{menuIns}, "label": that.TableConfig.GetMap(fk).GetString("label"), "name": prefixName, "icon": "el-icon-setting"}
			//表名有前缀
			if !isNewPrefix {
				//是否已有对应前缀，已经有对应的menu只需要push进去即可
				prefixName = DefaultMenuParentName
				mMenu = Map{"menus": Slice{menuIns}, "label": "系统管理", "name": prefixName, "icon": "el-icon-setting"}
			}
			//没有新前缀
			if that.IndexMenus[prefixName] != nil {
				that.IndexMenus.GetMap(prefixName)["menus"] = append(that.IndexMenus.GetMap(prefixName).GetSlice("menus"), menuIns)
				that.IndexMenus[prefixName+"/"+fk] = menuIns
			} else {

				that.Config["menus"] = append(that.Config.GetSlice("menus"), mMenu) //注入配置
				//写入Index
				that.IndexMenus[prefixName] = mMenu
				that.IndexMenus[prefixName+"/"+fk] = menuIns
			}
		}

		for k, v := range fv {
			//虚招后缀是_id结尾的表字段
			if len(k) <= 3 || strings.LastIndex(k, "_id") != len(k)-3 {
				continue
			}
			//普通表匹配
			oldTableName := k[:len(k)-3]
			//上级ID匹配
			if oldTableName == "parent" {
				oldTableName = fk
			}
			//字段有动词前缀，自动进行解析
			prefixColumn := strings.Index(oldTableName, "_")
			if prefixColumn > -1 && that.TableConfig[oldTableName[prefixColumn+1:]] != nil {
				oldTableName = oldTableName[prefixColumn+1:]
			}

			//普通方式查询不到，则转换为大型项目模块划分,暂时只支持一级模块划分，比如表sys_user 字段org_id，查询不到sys_org表则查询org表，
			//都查询不到则找不到，
			prefix := strings.Index(fk, "_")
			tableName := oldTableName
			if prefix > 0 {
				//表模块前缀
				tableName = fk[:prefix+1] + oldTableName
				if that.TableConfig[tableName] == nil {
					tableName = oldTableName
				}
				//表前缀+去除字段前缀
				prefixColumn := strings.Index(oldTableName, "_")
				if prefixColumn > -1 {
					tableName = fk[:prefix+1] + oldTableName[prefixColumn+1:]
					if that.TableConfig[tableName] == nil {
						tableName = oldTableName
					}
				}
			}

			//如果数据匹配则写入到配置中
			if that.TableConfig[tableName] != nil {
				v["link"] = tableName
				//一般查询name字段，如果没有name字段则默认第二个地段
				if that.TableColumns[tableName]["name"] != nil {
					v["value"] = tableName + "." + "name"
					break
				}

				if len(that.TableConfig.GetMap(tableName).GetSlice("columns")) > 2 {
					v["value"] = tableName + "." + that.TableConfig.GetMap(tableName).GetSlice("columns").GetMap(1).GetString("name")
					break
				}

			}

		}
	}

	fmt.Println(id, "---", that.Config.GetString("id"))
	that.Config["id"] = id
	//init文件初始化
	myInit = strings.Replace(myInit, "{{id}}", id, -1)
	myInit = strings.Replace(myInit, "{{tablesCtr}}", ctrList, -1)
	_ = os.MkdirAll(name, os.ModeDir)
	err = ioutil.WriteFile(name+"/init.go", []byte(myInit), os.ModePerm)
	if err != nil {
		that.Error.SetError(err)
	}
	//写入配置文件
	//var configByte bytes.Buffer

	//err = json.Indent(&configByte, []byte(that.Config.ToJsonString()), "", "\t")
	_ = os.MkdirAll(filepath.Dir(path), os.ModeDir)
	err = ioutil.WriteFile(path, []byte(that.Config.ToJsonString()), os.ModePerm)
	if err != nil {
		that.Error.SetError(err)
	}
	fmt.Println("有新的代码生成，请重新运行")
	os.Exit(-1)
}

func (that *MakeCode) Info(table string) string {
	reStr := ""
	for _, v := range that.TableColumns[table] {
		if v == nil {
			continue
		}
		if v.Get("info") == nil || v.GetBool("info") {
			reStr += v.GetString("name") + ","
		}
	}
	if len(reStr) != 0 {
		reStr = reStr[:len(reStr)-1]
	}
	return reStr
}
func (that *MakeCode) Add(table string, req *http.Request) Map {
	data := Map{}
	for _, v := range that.TableColumns[table] {
		//不可使用，未在前端展示，但在内存中保持有
		if v.GetBool("notUse") {
			continue
		}
		if v.Get("add") == nil || v.GetBool("add") {
			reqValue := req.FormValue(v.GetString("name"))
			if reqValue == "" {
				return nil
			}
			data[v.GetString("name")] = reqValue
		}
	}
	if len(data) == 0 {
		return nil
	}

	return data
}
func (that *MakeCode) Edit(table string, req *http.Request) Map {
	data := Map{}
	for _, v := range that.TableColumns[table] {
		//不可使用，未在前端展示，但在内存中保持有
		if v.GetBool("notUse") {
			continue
		}
		if v.Get("edit") == nil || v.GetBool("edit") {
			reqValue := req.FormValue(v.GetString("name"))
			if reqValue == "" {
				continue
			}
			data[v.GetString("name")] = reqValue
		}
	}

	if len(data) == 0 {
		return nil
	}

	return data
}

func (that *MakeCode) Search(table string, req *http.Request) (string, Map) {
	reStr := ""
	for _, v := range that.TableColumns[table] {
		//不可使用，未在前端展示，但在内存中保持有
		if v.GetBool("notUse") {
			continue
		}
		if v.Get("list") == nil || v.GetBool("list") {
			reStr += v.GetString("name") + ","
		}
	}
	if len(reStr) != 0 {
		reStr = reStr[:len(reStr)-1]
	}

	data := Map{}
	search := that.TableConfig.GetSlice("search")
	for k, _ := range search {

		reqValue := req.FormValue(search.GetMap(k).GetString("name"))
		if reqValue == "" {
			continue
		}

		data[search.GetMap(k).GetString("name")] = reqValue

	}

	return reStr, data
}