#include "glthread.h"
#include <stdlib.h>
#include <stdio.h>
#include <memory.h>

typedef struct emp_ {

    char name[30];
    unsigned int salary;
    char designation[30];
    unsigned int emp_id;
    glthread_node_t glnode;
} emp_t; 

void
print_emp_details(emp_t *emp){

    printf("Employee name = %s\n", emp->name);
    printf("salary = %u\n", emp->salary);
    printf("designation = %s\n", emp->designation);
    printf("emp_id = %u\n", emp->emp_id);
}


int 
main(int argc, char **argv){

    emp_t *emp1  = calloc(1, sizeof(emp_t));
    strncpy(emp1->name, "Neha", strlen("Neha"));
    emp1->salary = 50000;
    strncpy(emp1->designation, "HR", strlen("HR"));
    emp1->emp_id = 21;
    glthread_node_init((&emp1->glnode));

    emp_t *emp2  = calloc(1, sizeof(emp_t));
    strncpy(emp2->name, "Abhishek", strlen("Abhishek"));
    emp1->salary = 150000;
    strncpy(emp2->designation, "SE3", strlen("SE3"));
    emp2->emp_id = 32;
    glthread_node_init((&emp2->glnode));

    emp_t *emp3  = calloc(1, sizeof(emp_t));
    strncpy(emp3->name, "Arun", strlen("Arun"));
    emp3->salary = 60000;
    strncpy(emp3->designation, "SE4", strlen("SE4"));
    emp3->emp_id = 27;
    glthread_node_init((&emp3->glnode));


    /*Now Create a glthread*/
    glthread_t *emp_list = calloc(1, sizeof(glthread_t));
    init_glthread(emp_list, offsetof(emp_t, glnode));

    /*Now insert the records in glthread*/
    glthread_add(emp_list, &emp1->glnode);
    glthread_add(emp_list, &emp2->glnode);
    glthread_add(emp_list, &emp3->glnode);


    /*Walk over glthread*/
    emp_t *ptr = NULL;
    ITERATE_GL_THREADS_BEGIN(emp_list, emp_t, ptr){

        print_emp_details(ptr);
    } ITERATE_GL_THREADS_ENDS;

    /*Let us remove one record at random*/

    glthread_remove(emp_list, &emp2->glnode);
    printf("\nprinting again . . . \n");

    ITERATE_GL_THREADS_BEGIN(emp_list, emp_t, ptr){

        print_emp_details(ptr);
    } ITERATE_GL_THREADS_ENDS;


    /*Free all Dynamicall allocations*/
    ITERATE_GL_THREADS_BEGIN(emp_list, emp_t, ptr){
        
         glthread_remove(emp_list, &ptr->glnode);
         free(ptr);
    } ITERATE_GL_THREADS_ENDS;
    free(emp_list);

    return 0;
}