import { context } from "./ctx.js";
import { createType, error } from "./lexer.js";
import nativefunc from "./nativefunc.js";
import { COMPUTE_TYPES } from "./types.js";

let nid = 0;


export function execute({ data, target = 0, ctx = new context()}){
    if(target > 255) error("To much registers are required to run this. Support for this case will be build in later!",...data.pos);
    let [type, d] = createType(data);
    if(type == "code"){
        try {
            let { type, code } = nativefunc[data[0]]({ 
                execute: ({ data, target = 0, ctx:contx = ctx }) => execute({ data, target, ctx:contx }), 
                data, 
                target, 
                nid: () => nid++, 
                ctx 
            });
            return {code,type};
        } catch (e) {
            console.log(e);
            error(`'${data[0]}' is not a function`,...data.pos);
        }
    }else if (type == "var"){
        let { size, amount, type, name } = ctx.find(d,"V",data.pos);
        if (size <= 8 && amount == 1){
            if(type == COMPUTE_TYPES.FLOAT){
                return {
                    type: 2,
                    code: `        ${size > 4 ? "LDOU" :"LDSF"}  $${target},${name}`
                }
            }else{
                return {
                    type: type,
                    code: `        LD${(["B", "W", "T", "T", "O", "O", "O", "O"])[size-1]}${type==0?"U":""}  $${target},${name}`
                }
            }
        }else{
            return {
                type: 0,
                code: `        LDA  $${target},${name}`
            }
        }
        
    }else if (type == "bool"){
        return {
            code: `        SET  $${target},${d}`,
            type: COMPUTE_TYPES.UINT
        }
    }else if (type == "num"){
        return {
            code: `        SET  $${target},${d}`,
            type: COMPUTE_TYPES.UINT
        }
    }else if (type == "str"){
        
        return {
            code: `        SET  $${target},"${d}"`,
            type: COMPUTE_TYPES.UINT
        }
    }
    throw new Error("nothing found");
}