lua: export end-file event fields

DOCS/man/lua.rst

@@ -690,6 +690,23 @@ List of events
     Happens after a file was unloaded. Typically, the player will load the
     next file right away, or quit if this was the last file.
 
+    The event has the ``reason`` field, which takes one of these values:
+
+    ``eof``
+        The file has ended. This can (but doesn't have to) include
+        incomplete files or broken network connections under
+        circumstances.
+
+    ``stop``
+        Playback was ended by a command.
+
+    ``quit``
+        Playback was ended by sending the quit command.
+
+    ``error``
+        An error happened. In this case, an ``error`` field is present with
+        the error string.
+
 ``file-loaded``
     Happens after a file was loaded and begins playback.
 

player/lua.c

@@ -512,6 +512,26 @@ static int script_wait_event(lua_State *L)
         lua_setfield(L, -2, "args"); // event
         break;
     }
+    case MPV_EVENT_END_FILE: {
+        mpv_event_end_file *eef = event->data;
+        const char *reason;
+        switch (eef->reason) {
+        case MPV_END_FILE_REASON_EOF: reason = "eof"; break;
+        case MPV_END_FILE_REASON_STOP: reason = "stop"; break;
+        case MPV_END_FILE_REASON_QUIT: reason = "quit"; break;
+        case MPV_END_FILE_REASON_ERROR: reason = "error"; break;
+        default:
+            reason = "unknown";
+        }
+        lua_pushstring(L, reason); // event reason
+        lua_setfield(L, -2, "reason"); // event
+
+        if (eef->reason == MPV_END_FILE_REASON_ERROR) {
+            lua_pushstring(L, mpv_error_string(eef->error)); // event error
+            lua_setfield(L, -2, "error"); // event
+        }
+        break;
+    }
     case MPV_EVENT_PROPERTY_CHANGE: {
         mpv_event_property *prop = event->data;
         lua_pushstring(L, prop->name);