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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "lib/mdb.h"
#include "cmd.h"
int getid(char *selector);
int printkeys(tablist_t **list, int id, char **keys, int klen);
void printkey(tabidx_t idx);
// TODO: rename these functions
int setkeys_main(tablist_t **list, int id, char **pairs, int plen);
int delkeys_main(tablist_t **list, int id, char **keys, int klen);
int exec(int (*tabop)(tablist_t **, int, char **, int),
tablist_t **list, int id, char **keys, int klen);
int main(int argc, char **argv)
{
if (argc > 2) {
printf("usage: %s [db file]\n", argv[0]);
exit(1);
}
char *filename = NULL;
if (argc == 2)
filename = argv[1];
tablist_t *list = readdb(filename);
if (list == NULL)
exit(1);
char *cmd = calloc(1024, sizeof(char));
while (fgets(cmd, 1024, stdin) != NULL) {
cmd[strlen(cmd) - 1] = '\0';
if (!strcmp(cmd, "exit") || !strcmp(cmd, ""))
break;
struct cmd evaled = eval(cmd);
int id = getid(evaled.selector);
switch (evaled.type) {
case GET:
exec(printkeys, &list, id, evaled.params, evaled.plen);
break;
case SET:
case DEL:
id = exec(evaled.type == SET ? setkeys_main : delkeys_main,
&list, id, evaled.params, evaled.plen);
if (!id && filename)
writedb(filename, list);
break;
case ERR:
fprintf(stderr, "Unkown command: %s\n", cmd);
break;
}
if (evaled.params != NULL) {
for (int i = 0; i < evaled.plen; ++i)
free(evaled.params[i]);
free(evaled.params);
}
free(evaled.selector);
}
free(cmd);
for (int i = 0; i < list[0].len; ++i) {
int *indexes = getkeys(list, i);
for (int j = 0; indexes[j]; ++j)
delkey(list, i, list[i].tab[indexes[j]].key);
free(indexes);
}
free(list);
exit(0);
}
int getid(char *selector) {
if (selector == NULL)
return -2;
int id;
if (!strcmp(selector, "*"))
return -1;
else if (isdigit(selector[0]) &&
(id = atoi(selector)) >= 0)
return id;
else
return -2;
}
int printkeys(tablist_t **list, int id, char **keys, int klen)
{
if (keys == NULL) {
int *indexes = getkeys(*list, id);
printf("{ id: %d ", id);
for (int i = 0; indexes[i]; ++i)
printkey((*list)[id].tab[indexes[i]]);
free(indexes);
printf("}\n");
} else {
printf("{ id: %d ", id);
for (int i = 0; i < klen; ++i) {
tabidx_t idx = getkey(*list, id, keys[i]);
if (idx.flag == 0)
continue;
printkey(idx);
}
printf("}\n");
}
return 0;
}
void printkey(tabidx_t idx)
{
printf("%s: ", idx.key);
switch (idx.flag) {
case 1:
printf("%.2lf ", idx.value.num);
break;
case 2:
printf("%s ", idx.value.boolean ? "true" : "false");
break;
case 3:
printf("%s ", idx.value.str);
break;
}
}
int setkeys_main(tablist_t **list, int id, char **pairs, int plen)
{
if (pairs == NULL)
return 1;
for (int i = 0; i < plen; ++i) {
char *tmp = calloc(strlen(pairs[i]) + 1, sizeof(char));
strcpy(tmp, pairs[i]);
if (setkey(list, id, tmp)) {
free(tmp);
return 1;
}
free(tmp);
}
return 0;
}
int delkeys_main(tablist_t **list, int id, char **keys, int klen)
{
if (keys == NULL) {
int *indexes = getkeys(*list, id);
for (int i = 0; indexes[i]; ++i)
if (delkey(*list, id, (*list)[id].tab[indexes[i]].key))
return 1;
free(indexes);
} else {
for (int i = 0; i < klen; ++i)
if (delkey(*list, id, keys[i]))
return 1;
}
return 0;
}
int exec(int (*tabop)(tablist_t **, int, char **, int),
tablist_t **list, int id, char **keys, int klen)
{
if (id >= 0)
return tabop(list, id, keys, klen);
else if (id == -1) {
for (int i = 0; i < (*list)[0].len; ++i)
if (tabop(list, i, keys, klen))
return 1;
return 0;
} else {
fprintf(stderr, "Invalid id\n");
return 1;
}
}
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