//定義一個(gè)靜態(tài)方法來(lái)實(shí)現(xiàn)接口與實(shí)現(xiàn)類的直接檢驗(yàn)
//靜態(tài)方法不要寫(xiě)出Interface.prototype ,因?yàn)檫@是寫(xiě)到接口的原型鏈上的
//我們要把靜態(tài)的函數(shù)直接寫(xiě)到類層次上
//定義一個(gè)接口類
var Interface=function (name,methods) {//name：接口名字
  if(arguments.length<2){
    alert("必須是兩個(gè)參數(shù)")
  }
  this.name=name;
  this.methods=[];//定義一個(gè)空數(shù)組裝載函數(shù)名
  for(var i=0;i<methods.length;i++){
    if(typeof methods[i]!="string"){
      alert("函數(shù)名必須是字符串類型");
    }else {
      this.methods.push( methods[i]);
    }
  }
};
Interface.ensureImplement=function (object) {
  if(arguments.length<2){
    throw new Error("參數(shù)必須不少于2個(gè)")
    return false;
  }
  for(var i=1;i<arguments.length;i++){
    var inter=arguments[i];
    //如果是接口就必須是Interface類型
    if(inter.constructor!=Interface){
      throw new Error("如果是接口類的話，就必須是Interface類型");
    }
    //判斷接口中的方法是否全部實(shí)現(xiàn)
    //遍歷函數(shù)集合分析
    for(var j=0;j<inter.methods.length;j++){
      var method=inter.methods[j];//接口中所有函數(shù)
      //object[method]傳入的函數(shù)
      //最終是判斷傳入的函數(shù)是否與接口中所用函數(shù)匹配
      if(!object[method]||typeof object[method]!="function" ){//實(shí)現(xiàn)類中必須有方法名字與接口中所用方法名相同
        throw new Error("實(shí)現(xiàn)類中沒(méi)有完全實(shí)現(xiàn)接口中的所有方法")
      }
    }
  }
}

var bookShop=new Interface("bookShop",["addBook","findBook","showBooks"]);//書(shū)店接口

var Book=function (bNm,bName,bAuthor,bType) {
  this.bNm=bNm;
  this.bName=bName;
  this.bAuthor=bAuthor;
  this.bType=bType;
}

var pcatBookShop=(function(){
 //書(shū)架
  var jsBooks = new Array();//js書(shū)架
  var cBooks = new Array();//c書(shū)架
  var javaBooks = new Array();//java書(shū)架
   //內(nèi)部類1
  function AddJsBooks(book) {
    if(book.bType=="Js"){
      jsBooks.push(book);
    }else {
      AddJsBooks.successor(book);
    }
  }
  //內(nèi)部類2
  function AddJavaBooks(book) {
    if(book.bType=="Java"){
      javaBooks.push(book);
    }else {
      AddJavaBooks.successor(book);
    }
  }
  //內(nèi)部類3
  function AddCBooks(book) {
    if(book.bType=="C"){
      cBooks.push(book);
    }else {
      AddCBooks.successor(book);
    }
  }
})()

//擴(kuò)展window屬性
window.setSuccessor=function (after,before) {
  after.successor=before;//引用的執(zhí)行
}

//設(shè)置責(zé)任鏈-----串起來(lái)
setSuccessor(AddJsBooks,AddJavaBooks);
setSuccessor(AddJavaBooks,AddCBooks);

/**********查詢書(shū)籍************/
  var bookList = null;
  function FindBbn(keyword) {
    //鏈的頭部來(lái)初始化參數(shù)
    if(!bookList){
      bookList=jsBooks.concat(cBooks).concat(javaBooks);
      var book = new Array();
      book=bookList.filter(function (book) {//對(duì)booklist進(jìn)行過(guò)濾，過(guò)濾的條件為匿名函數(shù)
        if(book.bName.indexOf(keyword)!=-1){
             return true;
        }else {
          return false;
        }
      });
      //我要進(jìn)行鏈?zhǔn)讲樵?
      return book.concat(FindBbn.successor(keyword));
    }
  };
  function FindByName(keyword,book){
    var book = book;
    book = bookList.filter(function(book){
      if(book.bName.indexOf(keyword) != -1){
        return true;
      }else{
        return false;
      }
    });
    return book;
  }

Function.prototype.method=function (name,fn) {
  this.prototype[name]=fn;
  return this;
}
if(!Array.prototype.filter){
  Array.method("filter",function (fn,thisObj) {
    var scope=thisObj||window;
    var a=[];
    for(var i=0;i<this.length;i++){
      if(!fn.call(scope,this[i],i,this));{
        continue;
      }
      a.push(this[i]);
    }
    //返回過(guò)濾好數(shù)據(jù)
    return a;
  })
}

setSuccessor(FindBbn,FindByName);

 return function () {
    this.addBook=function (book) {
      if(book instanceof Book){
        AddJsBooks(book);//因?yàn)槲抑勒l(shuí)是鏈的入口
      }
    };
    this.findBook=function (keyword) {
      return FindBbn(keyword);//游泳規(guī)劃的責(zé)任鏈可以從頭到尾的查詢?nèi)?，F(xiàn)indBbn沒(méi)有則到FindByName中查詢
    }
    this.showBooks=function () {
      document.write("JS類圖書(shū)"+jsBooks.toSource()+"<br>");
      document.write("Java類圖書(shū)"+javaBooks.toSource()+"<br>");
      document.write("C類圖書(shū)"+cBooks.toSource()+"<br>");
      //自動(dòng)生產(chǎn)----------
      document.write(cpoyStr(60,"-")+"<br>");
    }
  }

//擴(kuò)展一個(gè)可以自動(dòng)生產(chǎn)-----的方法
window.cpoyStr=function (num,str) {
  var newStr="";
  for(var i=0;i<num;i++){
   newStr+=str;
  }
  return newStr;
};

var pb = new pcatBookShop();
pb.addBook(new Book("00101","JAVA","JIM","JAVA"));
pb.addBook(new Book("00201","C#","world","C"));
pb.addBook(new Book("00202","C++/C","Hello","C"));
pb.addBook(new Book("00301","JAVASCRIPT","Good","JS"));

//展示
pb.showBooks();
document.write(pb.findBook("C").toSource())