//
//  cmd.swift
//  cmd
//
//  Created by Jacky Jack on 12/06/2023.
//

import Foundation

public class CmdToken {
    public var type:Int = 0
    public var val=""
    init(type: Int, val: String = "") {
        self.type = type
        self.val = val
    }
}


public class CmdParser {
    
    public init() {}
    
    public func parse() {
        var tok:cmd_tok_t = cmd_tok_t()
        //var pointer = UnsafeMutablePointer(&tok)
        var c="hello 123 0x0"
        parse_cmd(&tok, c, c.count)
        
        
        var iter = tok
        while (iter.next != nil) {
            iter = iter.next.pointee
            //print("\(iter.type) \(iter.s) \(iter.e) \(iter.next) \(iter.sz)")
        }
    }
    
    public func parse(_ cmd: String) -> Array<CmdToken> {
        var token_list = Array<CmdToken>()
        var tok:cmd_tok_t = cmd_tok_t()
        parse_cmd(&tok, cmd, cmd.count )
        
        var iter = tok
        var start_str = UnsafeRawPointer(cmd)
        //print("cmd \(start_str)")
        while (iter.next != nil) {
            iter = iter.next.pointee
            //print("\(iter.type) \(iter.s) \(iter.e) \(iter.next) \(iter.sz)")
            if let start = iter.s {
                //print("yes")
            } else {
                //print("Cant unwrap")
            }
            let addr_s = UnsafeRawPointer(&iter.s.pointee)
            let addr_e = UnsafeRawPointer(&iter.e.pointee)
            //let addr_len = addr_e - addr_s
            //print("s \(addr_s) e \(addr_e)")
            
            //let length = iter.e - iter.s
            
            let sub_st = cmd.index(cmd.startIndex, offsetBy: addr_s - start_str )
            let sub_en = cmd.index(cmd.startIndex, offsetBy: addr_e - start_str )
            let subs = cmd[sub_st..<sub_en]
            token_list.append(CmdToken(type: Int(iter.type), val: String(subs)))
        }
        
        
        return token_list
    }
}
/*
public func parse() {
    var tok:cmd_tok_t = cmd_tok_t()
    var c="asd 123"
    parse_cmd(&tok, c, c.count)

}*/