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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "plat.h"
#include "playlist.h"
void init_playlist(Playlist* p) {
p->name[0] = 0;
p->cnt = 0;
}
void playlist_rm(Playlist* p, int i) {
int j;
for (j = i + 1; j < p->cnt; j++) {
p->songs[j - 1] = p->songs[j];
}
p->cnt--;
}
void playlist_add(Playlist* p, Song* s) {
if (p->cnt >= playlist_max)
return;
p->songs[p->cnt++] = s;
}
void playlist_add_first(Playlist* p, Song* s) {
int i;
if (p->cnt >= playlist_max)
return;
for (i = p->cnt - 1; i >= 0; i--) {
p->songs[i + 1] = p->songs[i];
}
p->songs[0] = s;
p->cnt++;
}
void playlist_shuffle(Playlist* p) {
int ci, ri;
Song* t;
for (ci = p->cnt; ci;) {
ri = rand() % ci;
ci--;
t = p->songs[ci];
p->songs[ci] = p->songs[ri];
p->songs[ri] = t;
}
}
void get_playlist_dir(char* buf) {
int llen;
llen = strlen(library_path);
strcpy(buf, library_path);
if (buf[llen - 1] != '/')
strcat(buf, "/");
strcat(buf, "playlists/");
}
void playlist_save(const Playlist* p) {
int i, plen, llen;
const char* path, * ws;
FILE* f;
char wp[256];
llen = strlen(library_path);
get_playlist_dir(wp);
if (!dir_exist(wp))
if (!make_dir(wp)) return;
strcat(wp, p->name);
strcat(wp, ".m3u");
f = fopen(wp, "w");
if (!f) return;
for (i = 0; i < p->cnt; i++) {
path = p->songs[i]->path;
plen = strlen(path);
if (
plen >= llen &&
!memcmp(path, library_path, llen)
)
ws = path + llen;
else
ws = path;
fputs(ws, f);
fputs("\n", f);
}
fclose(f);
}
int playlist_load(Library* l, Playlist* p, const char* name) {
char path[256];
char line[256];
const char* sp;
FILE* f;
Song* s;
int ll, lpl;
lpl = strlen(library_path);
get_playlist_dir(path);
strcat(path, name);
strcat(path, ".m3u");
f = fopen(path, "r");
if (!f) return 0;
strcpy(p->name, name);
p->cnt = 0;
while (fgets(line, sizeof line, f)) {
ll = strlen(line);
for (
;
ll > 1 && line[ll - 1] == '\n';
ll--, line[ll] = 0
);
if (strstr(line, library_path) != line) {
strcpy(path, library_path);
if (path[lpl - 1] != '/')
strcat(path, "/");
strcat(path, line);
sp = path;
} else {
sp = line;
}
s = find_song(l, sp);
if (s && s->path[0])
playlist_add(p, s);
}
return 1;
}
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