#ifndef GODIST_H
#define GODIST_H

#include <search.h>

#define MAX_NODES 15000
#define MAX_PARENTS 100
#define MAX_CHILDREN 100

struct node;
struct node {
    /* GO term id. E.g: "GO:0005180" */
    char term[11];
    /* Information content */
    float ic;
    /* Depth in tree */
    int depth;
    /* Evidence codes */
    int evidence[12];
    /* Accumulated evidence codes */
    int acc_evidence[12];

    /* Parent count and parents */
    int parentc;
    struct node *parents[MAX_PARENTS];

    /* Child count and children */
    int childrenc;
    struct node *children[MAX_CHILDREN];
};

struct node* term_array[MAX_NODES];
long term_array_size;
int link_count;

/* Ontology initialisation functions. */
int godist_init();
int godist_read_assoc(FILE *fd);
int godist_read_term(FILE *fd);
void accumulate_evidence(struct node*);

/* Distance metric functions */
float resnik_distance(char *term1, char *term2);
float fussimeg_distance(char *term1, char *term2);

#endif