Queue and playlist interactions with lkt

Closes #56 (closed) and #54 (closed)

Adds a way to import a playlist into the queue

src/main/lkt.c

@@ -276,6 +276,54 @@ populate__(struct lkt_cmd_args *args)
     rescan_or_update__(args, "__rescan");
 }
 
+noreturn void
+queue_import__(struct lkt_cmd_args *args)
+{
+    if (args->argc != 1)
+        fail("Invalid argument");
+    FILE *sock = lkt_connect();
+    char buff[LKT_MESSAGE_MAX];
+    write_socket(sock, "load %s\n", args->argv[0]);
+    exit_with_status(sock, buff);
+}
+
+noreturn void
+queue_replace__(struct lkt_cmd_args *args)
+{
+    if (args->argc != 1)
+        fail("Invalid argument");
+    bool play = false;
+    char buff[LKT_MESSAGE_MAX];
+    FILE *sock = lkt_connect();
+
+    for (;;) {
+        memset(buff, 0, LKT_MESSAGE_MAX * sizeof(char));
+        read_socket(sock, buff, LKT_MESSAGE_MAX - 1);
+        size_t len = strcspn(buff, LKT_KEY_VALUE_SEP);
+
+        if (STR_NMATCH(buff, "state", len)) {
+            char *it = lkt_skip_key(buff);
+            play = STR_NMATCH(it, "play", 4);
+            break;
+        }
+
+        if (STR_NMATCH(buff, "OK", 2))
+            break;
+        else if (STR_NMATCH(buff, "ACK", 3))
+            fail("ACK");
+    }
+
+    fclose(sock);
+    sock = lkt_connect();
+    write_socket(sock, "command_list_begin\n");
+    write_socket(sock, "clear\n");
+    write_socket(sock, "load %s\n", args->argv[0]);
+    if (play)
+        write_socket(sock, "play\n");
+    write_socket(sock, "command_list_end\n");
+    exit_with_status(sock, buff);
+}
+
 noreturn void
 config__(struct lkt_cmd_args *args)
 {
@@ -816,14 +864,16 @@ search_with_cmd(search_queue__,  playlistfind)
 /* Parsing stuff. */
 
 static struct lkt_cmd_opt options_queue[] = {
-    { .name = "insert",     .call = queue_insert__ },
-    { .name = "pos",        .call = queue_pos__    },
-    { .name = "pop",        .call = queue_pop__    },
-    { .name = "add",        .call = queue_add__    },
-    { .name = "seek",       .call = queue_seek__   },
-    { .name = "delete",     .call = queue_delete__ },
-    { .name = "clear",      .call = queue_clear__  },
-    { .name = "crop",       .call = queue_crop__   },
+    { .name = "insert",     .call = queue_insert__  },
+    { .name = "pos",        .call = queue_pos__     },
+    { .name = "pop",        .call = queue_pop__     },
+    { .name = "add",        .call = queue_add__     },
+    { .name = "seek",       .call = queue_seek__    },
+    { .name = "delete",     .call = queue_delete__  },
+    { .name = "clear",      .call = queue_clear__   },
+    { .name = "crop",       .call = queue_crop__    },
+    { .name = "replace",    .call = queue_replace__ },
+    { .name = "import",     .call = queue_import__  },
     LKT_OPT_DEFAULT(queue_list__),
 };