import { describe, test, expect, expectNumber, Result } from './tests.uts'



type UserJSON = {
  id : string;
  name : string | null;
}

type PersonJSON = {
  /**
  * @JSON_FIELD "a+b"
  */
  a_b : string;
  /**
  * @JSON_FIELD "a-b"
  */
  a_b_ : number;
  /**
  * @JSON_FIELD "class"
  */
  _class : boolean;
}


function countOccurrences(str : string, substr : string) : number {

  let count = 0
  let position = 0

  while (true) {
    position = str.indexOf(substr, position)
    if (position == -1) break
    count++
    position += substr.length
  }

  return count;
}

class A1 implements IJsonStringify{
  override toJSON():any|null{
  	let jsonRet = {
  		'name': "zhangsan",
  		'age': 12,
  	}
  	return jsonRet
  }
}

class A2 implements IJsonStringify{
  override toJSON():any|null{
  	return 2
  }
}

class A3 implements IJsonStringify{
  override toJSON():any|null{
  	return "json"
  }
}

class A4 implements IJsonStringify{
  override toJSON():any|null{
  	return null
  }
}

class A5 implements IJsonStringify{
  override toJSON():any|null{
  	return new A1()
  }
}

class A6 implements IJsonStringify{
  override toJSON():any|null{
  	return new A5()
  }
}


export function testJSON() : Result {
  return describe("JSON", () => {
    
    test('custom-stringify', () => {
      expect(JSON.stringify(new A1()).length).toEqual(28)
      expect(JSON.stringify(new A2())).toEqual("2")
      expect(JSON.stringify(new A3())).toEqual('"json"')
      expect(JSON.stringify(new A4())).toEqual('null')
      expect(JSON.stringify(new A5()).length).toEqual(28)
      expect(JSON.stringify(new A6()).length).toEqual(28)
    })
    
    test('parse', () => {
      // #TEST JSON.parse_tip,JSON.parse
      const json = `{"result":true, "count":42}`;
      const obj = JSON.parse(json) as UTSJSONObject;
      console.log(obj["count"]);
      // expected output: 42

      console.log(obj["result"]);
      // expected output: true
      // #END


      expect(obj["count"]).toEqual(42);
      expect(obj["result"] as boolean).toEqual(true);

      const json1 = `{
                "name": "John",
                "age": 30,
                "city": "New York"
              }`;
      const obj1 = JSON.parse(json1);
      // expect(obj1).toEqual({
      //     name: 'John',
      //     age: 30,
      //     city: 'New York',
      // });
      expect((obj1! as UTSJSONObject).getString('name')).toEqual("John")

      // #TEST JSON.parse_1
      const json2 = '{"string":"Hello","number":42,"boolean":true,"nullValue":null,"array":[1,2,3],"object":{"nestedKey":"nestedValue"}}';
      const obj2 = JSON.parse<UTSJSONObject>(json2)!;
      // #END
      // expect(obj2).toEqual({
      //     string: 'Hello',
      //     number: 42,
      //     boolean: true,
      //     nullValue: null,
      //     array: [1, 2, 3],
      //     object: {
      //         nestedKey: 'nestedValue',
      //     },
      // });
      expect(obj2['object']).toEqual({
        nestedKey: 'nestedValue',
      })
      expect(obj2.getString("object.nestedKey")).toEqual('nestedValue')


      let json3 = `{"id":"216776999999","name":"小王","grade":1.0,"list":[1,2,3],"address":{"province":"beijing","city":"haidian","streat":"taipingzhuang","other":2},"anyValue":[[null,null]],"obj":{"a":1,"b":false,"c":null},"customClass":{"name":"lisi","age":30},"numList":[1,2,3,null],"list2":[1,2,3,4],"dic":{"1":{"c":[null]}},"dicArr":[{"a":{"c":[null]}},{"b":{"c":1}}]}`
      let obj3 = JSON.parse(json3)! as UTSJSONObject;
      let obj3Address = obj3.getAny("address")!
      console.log(obj3Address)
      expect(obj3Address instanceof UTSJSONObject).toEqual(true)
      let obj3DicArr = obj3.getArray("dicArr")!
      let obj3DicArrFirst = obj3DicArr[0] as UTSJSONObject
      let obj3DicArrFirstA = obj3DicArrFirst['a']
      console.log(obj3DicArrFirstA instanceof UTSJSONObject)
      expect(obj3DicArrFirstA instanceof UTSJSONObject).toEqual(true)
      // 目前仅android 支持，暂不放开
      // let obj3 = JSON.parse<User>(json1);
      // console.log(obj3)

      // const json3 = '["apple","banana","cherry"]';
      // const obj3 = JSON.parse(json3)!;
      // TODO JSON.parse 后数组的类型 无法强转
      // expect(obj3).toEqual(['apple', 'banana', 'cherry']);

      // const json4 = '[1, "two", true, null, {"key": "value"}, ["nested"]]';
      // const obj4 = JSON.parse(json4)!;
      // expect(obj4).toEqual([1, 'two', true, null, { key: 'value' }, ['nested']]);

      // TODO 暂不支持多个参数
      // const json5 = '{"p": 5}';
      // const obj5 = JSON.parse(json5, function (k : string, v : number) : number {
      //     if (k === '') return v;
      //     return v * 2;
      // })!;
      // expect(obj5).toEqual({
      //     p: 10,
      // });


      expect(JSON.parse('{}')!).toEqual({});

      // TODO 不支持boolean、string，js端需抹平
      // expect(JSON.parse('true')!).toEqual(true);
      // expect(JSON.parse('"foo"')!).toEqual("foo");
      // expect(JSON.parse('null')!).toEqual(null);

      const json4 = '{"data":[{"a":"1"},{"a":2},[{"b":true},{"b":"test"}],[1, 2, 3]]}';
      const obj4 = JSON.parseObject(json4);
      expect(obj4?.getString('data[0].a')).toEqual("1")
      expect(obj4?.getNumber('data[1].a')).toEqual(2)
      expect(obj4?.getBoolean('data[2][0].b')).toEqual(true)
      expect(obj4?.getAny('data[1].a')).toEqual(2)
      expect(obj4?.getJSON('data[2][1]')).toEqual({ "b": "test" })
      expect(obj4?.getArray('data[3]')).toEqual([1, 2, 3])

    })
    test('parseObject', () => {
      // #TEST JSON.parseObject
      const json = `{"result":true, "count":42}`;
      const obj = JSON.parseObject(json);
      console.log(obj?.["count"])//42
      // #END

      expect(obj?.["count"]).toEqual(42);
      expect(obj?.["result"] as boolean).toEqual(true);

      expect(JSON.parseObject('{}')!).toEqual({});
      // #TEST JSON.parseObject_1
      const json1 = `{
			    "name": "John",
			    "id": "30"
			  }`;
      let obj2 = JSON.parseObject<UserJSON>(json1);
      console.log(obj2!.id) //30
      // #END
      expect(obj2!.id).toEqual("30");

      const json2 = `{
			    "id": "30"
			  }`;
      let obj3 = JSON.parseObject<UserJSON>(json2);
      expect(obj3!.id).toEqual("30");
      const json3 = `{
			    "name": "John"
			  }`;
      let obj4 = JSON.parseObject<UserJSON>(json3);
      expect(obj4).toEqual(null);
    })
    test('parseArray', () => {
      // #TEST JSON.parseArray
      const json1 = `[1,2,3]`;
      const array1 = JSON.parseArray(json1);
      console.log(array1)//[1, 2, 3]
      // #END
      expect(array1).toEqual([1, 2, 3]);

      const json2 = `[1,"hello world",3]`;
      const array2 = JSON.parseArray(json2);
      expect(array2).toEqual([1, "hello world", 3]);


      // #ifdef APP-ANDROID
      // #TEST JSON.parseArray_1
      const json3 = `[{"name":"John","id":"30"},{"name":"jack","id":"21"}]`;
      const array3 = JSON.parseArray<UTSJSONObject>(json3);
      console.log((array3![0])["name"])//"John"
      // #END
      expect((array3![0])["name"]).toEqual("John");
      // #endif
    })

    test('merge-test-1', () => {
      // #ifdef APP-ANDROID
      const data1 = {
        name: 'Tom1',
        age: 21
      };

      const data2 = {
        aa: {
          name: 'Tom2',
          age: 22,
          bb: {
            name: 'Tom3',
            age: 23
          }
        }
      }
      const obj = Object.assign(JSON.parse<UTSJSONObject>(JSON.stringify(data2))!, JSON.parse<UTSJSONObject>(JSON.stringify(data1))!) as UTSJSONObject;
      const innerObj = obj.getJSON("aa.bb")
      expect(innerObj instanceof UTSJSONObject).toEqual(true);
      // #endif
    })
    test('stringify-with-replacer', () => {
      // #ifdef APP-ANDROID
      let a = JSON.stringify({ "x": 111, "y": "aaa" })
      expect(a).toEqual('{"x":111,"y":"aaa"}');
      let a1 = JSON.stringify({ "x": 111, "y": "aaa" }, function (key : any, value : any | null) : any | null {
        if (key == "x") {
          return "x"
        }
        return value
      })
      expect(a1).toEqual('{"x":"x","y":"aaa"}');
      let a2 = JSON.stringify({ "x": 111, "y": "aaa" }, function (key : any, value : any | null) : any | null {
        if (key == "x") {
          return "x"
        }
        return value
      }, 6)
      expect(a2.length).toEqual(36);
      let a3 = JSON.stringify({ "x": 111, "y": "aaa" }, function (key : any, value : any | null) : any | null {
        if (key == "x") {
          return "x"
        }
        return value
      }, 11)
      expect(a3.length).toEqual(44);

      let a4 = JSON.stringify({ "x": 111, "y": "aaa" }, function (key : any, value : any | null) : any | null {
        if (key == "x") {
          return "x"
        }
        return value
      }, -11)
      expect(a4.length).toEqual(19);

      let a5 = JSON.stringify({ "x": 111, "y": "aaa", "z": { "x": 123 } }, ["x", 'z'])
      expect(a5).toEqual('{"x":111,"z":{"x":123}}');

      let a6 = JSON.stringify({ "x": 111, "y": "aaa", "z": { "x": 123 } }, ["x", 'y', 'z'])
      expect(a6).toEqual('{"x":111,"y":"aaa","z":{"x":123}}');
      let a7 = JSON.stringify({ "x": 111, "y": "aaa", "z": { "x": 123 } }, ["x", 'y', 'z'], 8)
      expect(a7.length).toEqual(91);

      let a8 = JSON.stringify({ "x": 111, "y": "aaa", "z": { "x": 123 } }, ["x", 'y', 'z'], "99999")

      expect(a8.length).toEqual(73);
      expect(countOccurrences(a8, "99999")).toEqual(6);

      // #endif
    })
    
    
    
    test('stringify', () => {
      // #ifdef APP-ANDROID

      // const obj1 = { name: 'John', age: 30, address: { city: 'New York', country: 'USA' } };
      // const json1 = JSON.stringify(obj1);
      // expect(json1).toEqual('{"address":{"country":"USA","city":"New York"},"name":"John","age":30}');

      // #endif

      // #TEST JSON.stringify
      console.log(JSON.stringify({ x: 5, y: 6 }));
      // expected output: "{"x":5,"y":6}"

      console.log(JSON.stringify(new Date(2006, 0, 2, 15, 4, 5)));
      // expected output: ""2006-01-02T15:04:05.000Z""
      // #END

      const obj2 = ['apple', 'banana', 'cherry'];
      const json2 = JSON.stringify(obj2);
      expect(json2).toEqual('["apple","banana","cherry"]');

      // TODO 暂不支持多个参数
      // const obj3 = { name: 'John', age: '30' };
      // const replacer = (key : string, value : string) : string => (key === 'name' ? value.toUpperCase() : value);
      // const json3 = JSON.stringify(obj3, replacer);
      // expect(json3).toEqual('{"name":"JOHN","age":"30"}');

      // const obj4 = { name: 'John', age: 30 };
      // const json4 = JSON.stringify(obj4, null, 4);
      //             expect(json4).toEqual(`{
      //     "name": "John",
      //     "age": 30
      // }`);
      // expect(JSON.stringify({ x: 5, y: 6 })).toEqual(`{"x":5,"y":6}`);
      expect(JSON.stringify([3, 'false', false])).toEqual(`[3,"false",false]`);
      expect(JSON.stringify({})).toEqual('{}');
      expect(JSON.stringify(1002)).toEqual('1002');
      expect(JSON.stringify(1002.202)).toEqual('1002.202');
      expect(JSON.stringify(null)).toEqual('null');
      // expect(JSON.stringify(100/0.0)).toEqual('null');
      expect(JSON.stringify(true)).toEqual('true');
      expect(JSON.stringify(false)).toEqual('false');
      //console.log(JSON.stringify('foo'))
      //expect(JSON.stringify('foo')).toEqual('foo');
      expect(JSON.stringify(Math.PI)).toEqual('3.141592653589793');
      expect(JSON.stringify(Math.E)).toEqual('2.718281828459045');

      /**
       * add since 2023-09-23
       * 部分出错过的示例场景
       */
      // #ifdef APP-ANDROID
      const arr = [{
        "$method": "collection",
        "$param": ["type"] as Array<any>,
      }, {
        "$method": "add",
        "$param": [
          [{
            "num": 2,
            "tag": "default-tag",
          } as UTSJSONObject, {
            "num": 3,
            "tag": "default-tag",
          } as UTSJSONObject] as Array<UTSJSONObject>,
        ] as Array<any>,
      }] as Array<UTSJSONObject>
      let ret = JSON.stringify({
        $db: arr
      })
      expect(ret).toEqual('{"$db":[{"$method":"collection","$param":["type"]},{"$method":"add","$param":[[{"num":2,"tag":"default-tag"},{"num":3,"tag":"default-tag"}]]}]}')

      // type Msg = {
      //   id : string,
      //   method : string,
      //   params : any
      // }
      // type CallUniMethodParams = {	
      // 	method : string	
      // 	args : com.alibaba.fastjson.JSONArray
      // }
      // const msg = `{"id":"6fd6ca73-c313-48ac-ad30-87ff4eba2be8","method":"App.callUniMethod","params":{"method":"reLaunch","args":[{"url":"/pages/index/index"}]}}`
      // const jsonRet2 = JSON.parse<Msg>(msg)!

      // const paramsStr = JSON.stringify(jsonRet2.params)
      // console.log(paramsStr)
      // expect(paramsStr).toEqual('{"method":"reLaunch","args":[{"url":"/pages/index/index"}]}')
      // const params = JSON.parse<CallUniMethodParams>(paramsStr)!
      // expect(JSON.stringify(params)).toEqual('{"method":"reLaunch","args":[{"url":"/pages/index/index"}]}')


      class Stage {
        $m : string
        $p : Array<any>
        constructor() {
          this.$m = 'test'
          this.$p = ['type']
        }
      }

      const obj22 = {
        data: [new Stage()] as Array<any>
      } as UTSJSONObject
      expect(JSON.stringify(obj22)).toEqual('{"data":[{}]}')

      // #endif

      type A = {
        inserted : number
      }
      const str = '{"inserted": 2}'
      const obj33 = JSON.parse<A>(str)!
      console.log('-------------------------');
      console.log(obj33.inserted);
      expectNumber(obj33.inserted).toEqualDouble(2.0)
      expect(JSON.stringify(obj33.inserted)).toEqual("2")

    })

    test('invalidField', () => {
      let str = "{\"a+b\":\"test1\",\"a-b\":2,\"class\":true}"
      let p = JSON.parseObject<PersonJSON>(str)
      expect(p?._class).toEqual(true)
      expect(p?.a_b).toEqual("test1")


      let retStr = JSON.stringify(p)
      console.log(retStr)
    })

    test('UTSJSONOject', () => {
      let t1 = "1"
      const a = {
        test() {
          t1 = "2"
          console.log("test")
        }
      };
      //console.log(a['test']);
      (a['test'] as () => void)()
      //console.log(t1);
      expect(t1).toEqual("2")
      //console.log(JSON.stringify(a));
      const map = {
        a: 1
      }.toMap()
      expect(map.get('a')).toEqual(1)

      const json = `{"result":true, "count":42}`;
      const obj = JSON.parse(json) as UTSJSONObject;
      let retStr = JSON.stringify(obj)
      // #ifdef APP-ANDROID
      expect(retStr).toEqual('{"result":true,"count":42}')
      // #endif
    })

    test('parse Map', () => {
      type A = {
        num : number,
      }
      const map = JSON.parse<Map<string, A>>(`{"a": {"num": 1}}`)
      // #ifndef APP-IOS
      expect(map instanceof Map).toEqual(true)
      // #endif
      expect(map?.get('a')?.num).toEqual(1)
    })

    test('parse generic type', () => {
      // #ifndef APP-ANDROID
      type A = {
        num : number,
      }
      function test<T>(json : string) : T {
        return JSON.parse<T>(json)!
      }

      // #ifndef APP-IOS
      const a = test<A>(`{"num": 1}`)
      expect(a.num).toEqual(1)
      // #endif
      // #endif

    })

  })
}