/* parts.c */

#include <stdio.h>
#include <string.h>

#include "types.h"
#include "parts.h"

Pnodeptr palloc(void) {
  return (Pnodeptr) malloc(sizeof(struct pnode));
}

void makenull_part(Pnodeptr *parts) {

}

int member_part(struct part_element_type x, Pnodeptr parts, Pnodeptr *p) {

}

int insert_part(struct part_element_type x, Pnodeptr *parts) {
  Pnodeptr p,q,r;
  int found;

  if (member_part(x,*parts,&r) == FALSE) {
    p = *parts;
    q = p;
    found = FALSE;
    while ((p != NULL) && !found)
      if(strcmp(p->part.pno,x.pno) < 0) {
        q = p;
        p = p->next;
      }
      else
        found = TRUE;
    if (q == p) {
      *parts = palloc();
      (*parts)->part = x;
      (*parts)->next = p;
      return TRUE;
    }
    else {   
      p = palloc();
      p->part = x;
      p->next = q->next;
      q->next = p;
      return TRUE;
    }
  }
  else return FALSE;
}

int delete_part(struct part_element_type x, Snodeptr suppliers[],
                Pnodeptr *parts) {

}

void print_parts(Pnodeptr parts) {

}

void delete_all_supply_for_part(Pnodeptr q, Snodeptr suppliers[],
                                Pnodeptr parts) {

}