package org.example
import com.beust.klaxon.*
import java.io.File
import java.lang.ProcessBuilder.*
import java.util.concurrent.TimeUnit

data class Grades(
    val math: Int,
    val physics: Int,
    val history: Int
)

data class Student(
    val name: String,
    val age: Int,
    val grades: Grades
)

fun String.runCommand(workingDir: File) {
    ProcessBuilder(*split(" ").toTypedArray())
        .directory(workingDir)
        .redirectOutput(Redirect.INHERIT)
        .redirectError(Redirect.INHERIT)
        .start()
        .waitFor(60, TimeUnit.MINUTES)
}

fun main() {
    val file = File("src/main/resources/data.json")
    var rawData = file.readText()
    var json = Klaxon().parseArray<Student>(rawData)

    var averageBest: Float = 0f
    var averageBestI: Int = 0
    var stud_80_plus: Array<Student> = arrayOf()
    var averBal: Float = 0f;
    if (json != null) {
        var el: Student;
        for (i in 0..<json.size) {
            //println(i.name)
            el = json.get(i)
            averBal = ((el.grades.math + el.grades.history + el.grades.physics)/3).toFloat()
            if (averBal > averageBest) {
                averageBest = averBal
                averageBestI = i
            }
            if (el.grades.math > 80) {
                stud_80_plus += el
            }
        }
    }

    val aver = json?.get(averageBestI)
    println("""
        Student with best average score:
        ${aver?.name} ${aver?.age} ${aver?.grades?.math} ${aver?.grades?.physics} ${aver?.grades?.history}
        
    """.trimIndent())

    println("Students with 80+ math scores:")
    for (i in stud_80_plus) {
        println("${i.name} ${i.age} ${i.grades.math} ${i.grades.physics} ${i.grades.history} ")
    }
}