public with sharing class Celestial {
    
    public string jsonString {get;set;}
    
    public List<User__c> userList {get;set;}
    
    public List<mainWrapper> jsonList = new List<mainWrapper>();
    
    public Celestial() {
    
        
        
        userList = [select id, Name, Reports_To__c, Position__c from  User__c ];
    
        mainWrapper  mw = new mainWrapper();
        mw.name = 'Chris C';
        mw.position = 'Charmain ';
        mw.adjacencies = new List<childWrapper>();
        jsonList.add(mw);
        
        List<User__c> users = childPeopleByPosition('CIO'); 
        
        for(User__c u1 : users ) 
        {
            
            childWrapper cObj1 = new childWrapper();
            cObj1.nodeTo = u1.Id;
            mw.adjacencies.add(cObj1);
            
            mainWrapper  mw1 = new mainWrapper  ();
            mw1.id = u1.Id;
            mw1.name = u1.Name;
            mw1.position = u1.Position__c;
            mw1.adjacencies = new List<childWrapper>();
            jsonList.add(mw1);
            
            List<User__c> users1 = new List<User__c>();
            users1 = childPeopleById(mw1.Id); 
            for(User__c u2 : users1 ) 
            {
                childWrapper cObj2 = new childWrapper();
                cObj2.nodeTo = u2.Id;
                mw1.adjacencies.add(cObj2);
                
                mainWrapper mw2 = new mainWrapper();
                mw2.id = u2.Id;
                mw2.name = u2.Name;
                mw2.position = u2.Position__c;
                mw2.adjacencies = new List<childWrapper>();
                jsonList.add(mw2);
                
                List<User__c> users2 = new List<User__c>();
                users2 = childPeopleById(mw2.Id);
                for(User__c u3 : users2 ) 
                {
                    childWrapper cObj3 = new childWrapper();
                    cObj3.nodeTo = u3.Id;
                    mw2.adjacencies.add(cObj3);
                    
                    mainWrapper mw3 = new mainWrapper();
                    mw3.id = u3.Id;
                    mw3.name = u3.Name;
                    mw3.position = u3.Position__c;
                    mw3.adjacencies = new List<childWrapper>();
                    jsonList.add(mw3);
                    
                    List<User__c> users3 = new List<User__c>();
                    users3 = childPeopleById(mw3.Id);
                    for(User__c u4 : users3 ) 
                    {
                        childWrapper cObj4 = new childWrapper();
                        cObj4.nodeTo = u4.Id;
                        mw3.adjacencies.add(cObj4);
                        
                        mainWrapper mw4 = new mainWrapper();
                        mw4.id = u4.Id;
                        mw4.name = u4.Name;
                        mw4.position = u4.Position__c;
                        mw4.adjacencies = new List<childWrapper>();
                        jsonList.add(mw4);
                    
                        List<User__c> users4 = new List<User__c>();
                        users4 = childPeopleById(mw4.Id);
                        for(User__c u5: users4 ) 
                        {
                            childWrapper cObj5 = new childWrapper  ();
                            cObj5.nodeTo = u5.Id;
                            mw4.adjacencies.add(cObj5);
                            
                            mainWrapper mw5 = new mainWrapper();
                            mw5.id = u5.Id;
                            mw5.name = u5.Name;
                            mw5.position = u5.Position__c;
                            jsonList.add(mw5);
                        }
                    }
                }
            }
         }
        
        System.debug(jsonList);
        jsonString = JSON.serialize(jsonList);
        
    }
    
    public List<User__c> childPeopleByPosition (String position)
    {
        List<User__c> childList = new List<User__c>();
        for(User__c p: userList ) 
        {
            if (p.Position__c == position )
            {   
                childList.add(p);
            }
        }
        return childList;
    }
    
    
    public List<User__c> childPeopleById (Id parentId)
    {
        List<User__c> childList = new List<User__c>();
        for(User__c p: userList ) 
        {
            if (p.Reports_To__c == parentId )
            {   
                childList.add(p);
            }
        }
        return childList;
    }
    
    
    public class mainWrapper
    {
        public String name;
        public String id;
        public String position;
        public List<childWrapper> adjacencies;
        
    }
    public class childWrapper
    {
        public string nodeTo;
    }
     
}