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#include <getopt.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include "toml.h"
#define BOOKI_FILE_REL ".local/share/booki/books.toml"
char* BOOKI_FILE;
const char* get_last_word(const char* str) {
const char* last_space = strrchr(str, ' ');
if ((last_space - str) > 0)
return last_space + 1;
else
return 0;
}
bool regex_match(const char* pattern, const char* text) {
// empty pattern matches everything
if (!*pattern) return true;
// get lengths
int pattern_length = strlen(pattern);
int text_length = strlen(text);
if (pattern_length > text_length) return false;
// we only need to compare while remaining text is
// as long or longer than pattern (without special)
for (int i = 0; i <= (text_length - pattern_length); i++) {
if (strncasecmp(pattern, text + i, pattern_length) == 0) return true;
}
return false;
}
toml_table_t* get_toml_data(const char* filename) {
FILE* fp;
char errbuf[200];
fp = fopen(filename, "r");
if (!fp) {
printf("can't open file :(");
return 0;
}
toml_table_t* conf = toml_parse_file(fp, errbuf, sizeof(errbuf));
fclose(fp);
return conf;
}
static struct option search_options[] = {
{"title", required_argument, 0, 't'},
{"author", required_argument, 0, 'a'},
{"show", no_argument, 0, 's'},
{0, 0, 0, 0} // marks the end of the array
};
char** search(int argc, char* argv[]) {
toml_table_t* data = get_toml_data(BOOKI_FILE);
if (!data) {
return NULL;
}
int opt;
int opt_idx = 0;
char* title = NULL;
char* author = NULL;
int show = 0;
while ((opt = getopt_long(argc, argv, "t:a:", search_options, &opt_idx)) != -1) {
switch(opt) {
case 't':
title = optarg;
break;
case 'a':
author = optarg;
break;
case 's':
show = 1;
break;
case '?':
if (optopt == 't' || optopt == 'a')
fprintf(stderr, "search flags require an argument");
break;
default:
printf("bad arg\n");
return NULL;
}
}
// get the books array
toml_array_t* books = toml_array_in(data, "books");
if (!books) {
printf("no such array: 'books'");
return NULL;
}
for (int i = 0; ; i++) {
toml_table_t* book = toml_table_at(books, i);
if (!book) break;
toml_datum_t book_title = toml_string_in(book, "title");
if (!book_title.ok) {
continue;
}
// author can be a string or a list
toml_datum_t book_author = toml_string_in(book, "author");
char author_str[100];
char* tmp;
if (!book_author.ok) {
toml_array_t* book_author_array = toml_array_in(book, "author");
if (!book_author_array) {
continue;
}
int len = toml_array_nelem(book_author_array);
tmp = toml_string_at(book_author_array, 0).u.s;
strcpy(author_str, tmp);
free(tmp);
for (int i = 1; i < len; i++) {
book_author = toml_string_at(book_author_array, i);
tmp = book_author.u.s;
if (i == len-1) {
strcat(author_str, " and ");
} else {
strcat(author_str, ", ");
}
strcat(author_str, book_author.u.s);
free(tmp);
}
} else {
strcpy(author_str, book_author.u.s);
free(book_author.u.s);
}
// always print on no search terms
bool print_title = (title == NULL);
bool print_author = (author == NULL);
if (title != NULL)
print_title = regex_match(title, book_title.u.s);
if (author != NULL)
print_author = regex_match(author, author_str);
if (print_title && print_author) {
printf("%s by %s\n", book_title.u.s, author_str);
if (show) {
//toml_datum_t d;
for (int i = 0; ; i++) {
const char* key = toml_key_in(book, i);
if (!key) break;
/*
if (strcmp("pages", key) == 0) {
d = toml_int_in(book, key);
if (d.ok) {
printf(" - %s: %d\n",
}
}
*/
// currently we support strings and ints
toml_datum_t s = toml_string_in(book, key);
if (s.ok) {
printf(" - %s: %s\n", key, s.u.s);
free(s.u.s);
}
toml_datum_t i = toml_int_in(book, key);
if (i.ok) {
printf(" - %s: %d\n", key, i.u.i);
}
}
}
}
free(book_title.u.s);
//free(book_author.u.s);
}
toml_free(data);
return argv + optind;
}
void open() {
char* home = getenv("HOME");
if (!home) {
printf("no home?\n");
home = "/"; // no way
}
char* editor = getenv("EDITOR");
if (!editor)
editor = "nano";
pid_t pid;
int status;
switch ((pid = fork())) {
case -1:
printf("fork has failed!\n");
break;
case 0:
execlp(editor, editor, BOOKI_FILE, NULL);
printf("child failed :(\n");
break;
default:
// wait for the child to finish
pid = wait(&status);
break;
}
}
void help(bool err) {
printf("booki! it's a thing\n");
if (err) {
printf("you did something wrong\n");
}
}
int main(int argc, char* argv[]) {
char* home = getenv("HOME");
char booki_file[strlen(home) + strlen(BOOKI_FILE_REL) + 1];
sprintf(booki_file, "%s/%s", home, BOOKI_FILE_REL);
BOOKI_FILE = booki_file;
char** remaining = NULL;
if (argc == 1) {
help(false);
return 0;
} else if (strcmp(argv[1], "open") == 0) {
open();
} else if (strcmp(argv[1], "search") == 0) {
remaining = search(argc - 1, argv + 1);
}
return 0;
}
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