4 files changed, 87 insertions, 2 deletions

diff --git a/src/sink/desktop.c b/src/sink/desktop.c
index 11da0f9..85080ba 100644
--- a/src/sink/desktop.c
+++ b/src/sink/desktop.c
@@ -10,6 +10,9 @@
 
 #include "desktop.h"
 #include "common.h"
+#ifdef _DEBUG_
+#include "input_simulator.h"
+#endif
 
 static u8 sink_callback(void *userdata, u8 op, u8 type, void *opaque)
 {
@@ -47,8 +50,15 @@ static void screen_callback(void *userdata, u8 op, void *opaque)
     case CAMU_SCREEN_RESEEK:
         camu_sink_reseek(&c->sink);
         break;
-    case CAMU_SCREEN_UNSET:
-        camu_sink_unset(&c->sink);
+    case CAMU_SCREEN_DEBUG:
+#ifdef _DEBUG_
+        if (camu_input_simulator_running()) {
+            camu_input_simulator_stop();
+        } else {
+            camu_input_simulator_run(&c->sink);
+        }
+        //camu_sink_unset(&c->sink);
+#endif
         break;
     case CAMU_SCREEN_VOLUME: {
         f64 amount = *(f64 *)opaque;
@@ -111,6 +121,11 @@ bool camu_desktop_tick(struct camu_desktop *c)
 
 void camu_desktop_stop(struct camu_desktop *c)
 {
+#ifdef _DEBUG_
+    if (camu_input_simulator_running()) {
+        camu_input_simulator_stop();
+    }
+#endif
     camu_mixer_pause(&c->mixer);
     camu_mixer_clear(&c->mixer);
     camu_screen_set_state(&c->scr, CAMU_SCREEN_CLOSED);
diff --git a/src/sink/input_simulator.c b/src/sink/input_simulator.c
new file mode 100644
index 0000000..b9c92ca
--- /dev/null
+++ b/src/sink/input_simulator.c
@@ -0,0 +1,60 @@
+#include <aki/thread.h>
+#include <al/random.h>
+
+#include "input_simulator.h"
+
+// This is ignoring all thread-safety.
+static s32 quit = 1;
+static struct aki_thread thread;
+
+enum {
+    SKIP = 0,
+    BACKSKIP,
+    SHUFFLE,
+    MARK, // count
+    TOGGLE_PAUSE,
+    SEEK,
+};
+
+static aki_thread_result AKI_THREADCALL input_simulation_thread(void *userdata)
+{
+    struct camu_sink *sink = (struct camu_sink *)userdata;
+    while (!quit) {
+        aki_thread_sleep(AKI_TS_FROM_USEC(30000));
+        switch (al_rand() % MARK) {
+        case SKIP:
+            camu_sink_skip(sink, (al_rand() % 5));
+            break;
+        case BACKSKIP:
+            camu_sink_skip(sink, -(al_rand() % 5));
+            break;
+        case SHUFFLE:
+            camu_sink_shuffle(sink);
+            break;
+        case TOGGLE_PAUSE:
+            camu_sink_toggle_pause(sink);
+            break;
+        case SEEK:
+            camu_sink_seek(sink, 0.0);
+            break;
+        }
+    }
+    return 0;
+}
+
+void camu_input_simulator_run(struct camu_sink *sink)
+{
+    quit = 0;
+    aki_thread_create(&thread, input_simulation_thread, sink);
+}
+
+bool camu_input_simulator_running(void)
+{
+    return quit == 0;
+}
+
+void camu_input_simulator_stop(void)
+{
+    quit = 1;
+    aki_thread_join(&thread);
+}
diff --git a/src/sink/input_simulator.h b/src/sink/input_simulator.h
new file mode 100644
index 0000000..40253d0
--- /dev/null
+++ b/src/sink/input_simulator.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#include "../libsink/sink.h"
+
+void camu_input_simulator_run(struct camu_sink *sink);
+bool camu_input_simulator_running(void);
+void camu_input_simulator_stop(void);
diff --git a/src/sink/meson.build b/src/sink/meson.build
index 73a9276..067b045 100644
--- a/src/sink/meson.build
+++ b/src/sink/meson.build
@@ -1,4 +1,7 @@
 desktop_src = ['desktop.c']
+if is_debug
+  desktop_src += ['input_simulator.c']
+endif
 desktop_deps = [libsink]
 desktop_args = ['-DCAMU_MIXER_THREADED', '-DCAMU_SCREEN_THREADED']
 desktop = declare_dependency(sources: desktop_src, dependencies: desktop_deps,