var getExpress = require("express");
// const { get } = require("node:http");
var ex = getExpress();
var port = 8080;

ex.listen(port , ()=>console.log(`Server is running in ${port}`))//creat the server
var student = [
    {
        name: "Rahim",
        id: 1,
        eyeColor:"black",
        age: 18
    },
    {
        name: "Karim",
        id: 2,
        eyeColor:"black",
        age: 19
    },
    {
        name: "Fahim",
        id: 3,
        eyeColor:"black",
        age: 20
    },
    {
        name: "Ridom",
        id: 4,
        eyeColor:"black",
        age: 14
    },
]//this is my data

//Find them whose eye color is black and age greater than 15
ex.get("/student1" , (req , res)=>{
    var eyeColor = req.query.eyeColor;
    var age = req.query.age;
    var getTheStudent = student.filter(val=> val.eyeColor == eyeColor && val.age > age) //filter the data

    setTimeout(()=>{
        console.log(getTheStudent);
        res.send(getTheStudent)
    },3000)  //receive the data after 3 sec.

})


//Find them whose age is less than equal 15 and change their eye color brown to black.
ex.get("/student2" , (req , res)=>{
    var age = req.query.age;
    var getTheStudent = student.filter(val=>{
        if(val.age <= age){
            return val.eyeColor = "brown";
        }
    })//filter the data and change the eye color from black to brown

    setTimeout(()=>{
        console.log(getTheStudent);
        res.send(getTheStudent)
    },3000)   //receive the data after 3 sec.

})


//Create a get route to see all students name and id only.
ex.get("/student" , (req , res)=>{
    var getOnlyNameAndId = [];
     student.map(val=>{
        var jsonFormat = JSON.stringify(val ,["name","id"]); //receive the id and name in json format
        var convertJsonToObjcet = JSON.parse(jsonFormat);//convert it to object
        getOnlyNameAndId.push(convertJsonToObjcet);//pust the data in to a array
    })
    setTimeout(()=>{
        console.log(getOnlyNameAndId);
        res.send(getOnlyNameAndId)
    },3000)//receive the data after 3 sec.

})