#include <stdio.h>
#include <stdint.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "elang.h"
#define el_printf(...)              do{printf(__VA_ARGS__);}while(0)
static FILE *log_fp;
int elang_ext_print(void** vm){
    elang_ext_data_type_t   type;
    unsigned char*          data;
    float                   fnum;
    el_uint32_t             len;
    int     ret;
    // el_printf("elang_ext_print\n");
    ret = elang_ext_pop_arg(&vm,&type,&data,&fnum,&len);
    // el_printf("     ret: %d\n type: %d data: %p fnum: %f len: %d\n",ret,type,data,fnum,len);
    switch(type){
        case ELANG_EXT_DATA_STR:
            if(len > 0){
                el_printf("%s\n",data);
            }
        break;
        case ELANG_EXT_DATA_NIL:
            el_printf("nil\n");
        break;
        case ELANG_EXT_DATA_FLOAT:
            el_printf("%f\n",fnum);
        break;
        case ELANG_EXT_DATA_LIST:
            el_printf("list(%d)\n",len);
        break;
    }
}
int elang_ext_boot_hook(void** vm){
    // printf("######################## elang_ext_boot_hook ###################\n");
    // log_fp = fopen("ext_log.txt","w+");
    // if(NULL == log_fp) {
    //     printf("open failed\n");
    //     return -1;
    // }
    elang_ext_register_func(&vm,"print",elang_ext_print);
}

int elang_ext_exit_hook(void** vm){
    // fclose(log_fp);
}