playlists and stuffHEADmaster

1 files changed, 123 insertions, 0 deletions

diff --git a/playlist.c b/playlist.c
new file mode 100644
index 0000000..8dda913
--- /dev/null
+++ b/playlist.c
@@ -0,0 +1,123 @@
+#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;
+}