Merge pull request #24 from grapp-dev/fix/combine-latest

fix: ensure that the `signal_values` provided are resolved correctly when using `combine_latest`

Author: mobily

docs/pages/docs/signal.mdx

@@ -268,6 +268,7 @@ And here's the final result:
   name="combine_latest" 
   args={[
     ['...', 'SignalValue[]'],
+    ['combinator_fn', 'fun(...): T']
   ]}
   returns="SignalValue" 
 />

lua/nui-components/signal/value.lua

@@ -59,7 +59,18 @@ function SignalValue:skip(n)
 end
 
 function SignalValue:combine_latest(...)
-  self._private.observable = self._private.observable:combine_latest(...)
+  local signal_values = { ... }
+
+  local sources = fn.imap(signal_values, function(signal_value, index)
+    if type(signal_value) ~= "function" and not (index == #signal_values) then
+      return signal_value:get_observable()
+    end
+
+    return signal_value
+  end)
+
+  self._private.observable = self._private.observable:combine_latest(fn.unpack(sources))
+
   return self
 end