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/**
* @file cli.c
* @brief Minimal command-line front end: `cepis 01001000`.
*
* It exists for one concrete case -- quickly confirming a local instance
* answers before pointing code at it:
*
* cepis --base-url http://localhost:8080 01001000
*
* A single CEP goes through the unit lookup, which carries `geo`; several go
* through the batch, which is one request instead of N and has no `geo`.
*
* It is not the library's main interface; for that, include `cepis.h`.
*/
#include "cepis.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static void print_escaped(const char *text)
{
size_t i;
putchar('"');
for (i = 0; text[i] != '\0'; i++) {
unsigned char c = (unsigned char)text[i];
switch (c) {
case '"':
fputs("\\\"", stdout);
break;
case '\\':
fputs("\\\\", stdout);
break;
case '\n':
fputs("\\n", stdout);
break;
case '\r':
fputs("\\r", stdout);
break;
case '\t':
fputs("\\t", stdout);
break;
default:
if (c < 0x20)
printf("\\u%04x", c);
else
putchar((int)c);
}
}
putchar('"');
}
static void print_pair(const char *key, const char *value, bool last)
{
printf(" \"%s\": ", key);
print_escaped(value);
printf("%s\n", last ? "" : ",");
}
static void print_address(const cepis_address_t *address)
{
if (address == NULL) {
printf(" null");
return;
}
printf(" {\n");
print_pair("cep", address->cep, false);
print_pair("logradouro", address->logradouro, false);
print_pair("complemento", address->complemento, false);
print_pair("unidade", address->unidade, false);
print_pair("bairro", address->bairro, false);
print_pair("localidade", address->localidade, false);
print_pair("uf", address->uf, false);
print_pair("estado", address->estado, false);
print_pair("regiao", address->regiao, false);
print_pair("ibge", address->ibge, false);
print_pair("gia", address->gia, false);
print_pair("ddd", address->ddd, false);
print_pair("siafi", address->siafi, address->geo == NULL);
if (address->geo != NULL) {
printf(" \"geo\": {\"lat\": %.6f, \"lon\": %.6f, "
"\"raio_m\": %ld, \"precisao\": ",
address->geo->lat, address->geo->lon,
address->geo->raio_m);
print_escaped(address->geo->precisao);
printf("}\n");
}
printf(" }");
}
static int usage(int code)
{
FILE *stream = code == 0 ? stdout : stderr;
fprintf(stream,
"usage: cepis [--base-url URL] [--timeout SECONDS] CEP...\n"
"\n"
" --base-url URL API URL (default: %s)\n"
" --timeout SECONDS per-socket timeout (default: 10)\n"
" --version print the version and exit\n",
CEPIS_DEFAULT_BASE_URL);
return code;
}
int main(int argc, char **argv)
{
cepis_config_t config;
cepis_client_t *client = NULL;
cepis_error_t err;
const char **ceps;
size_t count = 0;
int status = 0;
int i;
cepis_config_init(&config);
ceps = calloc((size_t)argc, sizeof(*ceps));
if (ceps == NULL)
return 1;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "--help") == 0) {
free(ceps);
return usage(0);
}
if (strcmp(argv[i], "--version") == 0) {
printf("cepis %s\n", CEPIS_VERSION);
free(ceps);
return 0;
}
if (strcmp(argv[i], "--base-url") == 0 && i + 1 < argc) {
config.base_url = argv[++i];
continue;
}
if (strcmp(argv[i], "--timeout") == 0 && i + 1 < argc) {
config.timeout = strtod(argv[++i], NULL);
continue;
}
if (argv[i][0] == '-') {
free(ceps);
return usage(2);
}
ceps[count++] = argv[i];
}
if (count == 0) {
free(ceps);
return usage(2);
}
if (cepis_client_new(&config, &client, &err) != CEPIS_OK) {
fprintf(stderr, "error: %s\n", err.message);
free(ceps);
return 1;
}
if (count == 1) {
cepis_address_t *address = NULL;
if (cepis_lookup(client, ceps[0], &address, &err) != CEPIS_OK) {
fprintf(stderr, "error: %s: %s\n",
cepis_status_str(err.status), err.message);
status = 1;
} else {
print_address(address);
printf("\n");
cepis_address_free(address);
}
} else {
cepis_address_list_t list = {NULL, 0};
if (cepis_lookup_many(client, ceps, count, &list, &err) !=
CEPIS_OK) {
fprintf(stderr, "error: %s: %s\n",
cepis_status_str(err.status), err.message);
status = 1;
} else {
size_t index;
printf("[\n");
for (index = 0; index < list.count; index++) {
print_address(list.items[index]);
printf("%s\n",
index + 1 < list.count ? "," : "");
}
printf("]\n");
cepis_address_list_free(&list);
}
}
cepis_client_free(client);
free(ceps);
return status;
}
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