drag-n-drop chain + dynamic params

moodconsole/src/App.tsx

@@ -31,17 +31,93 @@ const Display: FC<{
   );
 };
 
+interface EffectParamsOption {
+  type: "slider";
+  min: number;
+  max: number;
+  default: number;
+  step?: number;
+}
+
+interface EffectOption {
+  function: string;
+  params: { [key: string]: EffectParamsOption } | undefined;
+}
+
+interface EffectActive {
+  function: string;
+  params: { [key: string]: any };
+}
+
 interface State {
   initialized: number;
-  current_effect: string;
+  chain: EffectActive[];
 }
 
 interface Options {
   effects: {
-    available: string[];
+    available: EffectOption[];
   };
 }
 
+const ActiveEffect: FC<{
+  availableEffects: EffectOption[];
+  effect: EffectActive;
+  key: string;
+  onChange: (name: string, value: number) => void;
+}> = ({ availableEffects, effect, onChange, key }) => {
+  const effectUsed = availableEffects.find(
+    (e) => e.function === effect.function
+  );
+
+  const children = (function () {
+    if (
+      effectUsed &&
+      effectUsed.params !== undefined &&
+      effectUsed.params !== null
+    ) {
+      return Object.entries(effectUsed.params).map(
+        ([name, paramOptions], idx) => {
+          if (paramOptions.type === "slider") {
+            const currentValue = effect.params[name];
+            const id = `${key}-input-${name}-${idx}`;
+            return (
+              <div>
+                <div className="flex">
+                  <div className="text-sm">{paramOptions.min}</div>
+                  <input
+                    id={id}
+                    type="range"
+                    value={currentValue}
+                    min={paramOptions.min}
+                    max={paramOptions.max}
+                    onChange={(e) => onChange(name, parseFloat(e.target.value))}
+                    step={paramOptions.step || 1}
+                  />
+                  <div className="text-sm">{paramOptions.max}</div>
+                </div>
+                <label className="text-sm text-gray-500" htmlFor={id}>
+                  {name}
+                </label>
+              </div>
+            );
+          }
+          return null;
+        }
+      );
+    } else {
+      return null;
+    }
+  })();
+
+  return (
+    <Display color="green">
+      <p>{effect.function}</p>
+      {children}
+    </Display>
+  );
+};
+
 function App() {
   const [state, setState] = useState<State | undefined>(undefined);
   const [options, setOptions] = useState<Options | undefined>(undefined);
@@ -101,30 +177,99 @@ function App() {
     }
   }, [socket]);
 
-  const onEffectButtonClick = (name: string) => {
-    socket?.send(
-      JSON.stringify({ type: "mutation", payload: { current_effect: name } })
-    );
+  const propagateState = (state: State) => {
+    socket?.send(JSON.stringify({ type: "mutation", payload: state }));
+  };
+
+  const handleAvailableDrop = (id: string) => {
+    const [source, index, name] = id.split("-");
+    if (source === "active" && state) {
+      // remove from chain
+      const stateCopy = JSON.parse(JSON.stringify(state)) as State;
+      stateCopy.chain.splice(parseInt(index), 1);
+      propagateState(stateCopy);
+    }
+  };
+
+  const handleChainDrop = (id: string) => {
+    const [source, index, name] = id.split("-");
+    if (source === "available" && state) {
+      const stateCopy = JSON.parse(JSON.stringify(state)) as State;
+      const effect = options?.effects.available.filter(
+        (e) => e.function === name
+      )[0];
+      if (effect) {
+        stateCopy.chain.push({
+          function: effect.function,
+          params: {},
+        });
+        propagateState(stateCopy);
+      }
+    }
   };
 
   return (
     <div>
       {options && state ? (
-        <div className="font-mono flex justify-center flex-col">
-          <Display color="gray">Current Effect {state.current_effect}</Display>
-          {options.effects.available.map((effect) => {
-            return (
-              <Button
-                key={effect}
-                color="green"
-                onClick={() => {
-                  onEffectButtonClick(effect);
-                }}
-              >
-                {effect}
-              </Button>
-            );
-          })}
+        <div className="flex flex-row">
+          <div
+            className="font-mono flex justify-start flex-col w-1/2"
+            onDrop={(e) => {
+              const id = e.dataTransfer.getData("application/json");
+              handleAvailableDrop(id);
+            }}
+            onDragOver={(e) => {
+              e.preventDefault();
+            }}
+          >
+            {options.effects.available.map((effect, index) => {
+              const key = `available-${index}-${effect.function}`;
+              return (
+                <div
+                  draggable
+                  key={key}
+                  onDragStart={(e) => {
+                    e.dataTransfer.setData("application/json", key);
+                  }}
+                >
+                  <Display color="gray">{effect.function}</Display>
+                </div>
+              );
+            })}
+          </div>
+          <div
+            className="flex justify-start flex-col border border-green-500 w-1/2"
+            onDrop={(e) => {
+              const id = e.dataTransfer.getData("application/json");
+              handleChainDrop(id);
+            }}
+            onDragOver={(e) => {
+              e.preventDefault();
+            }}
+          >
+            {state.chain.map((effect, index) => {
+              const key = `active-${index}-${effect.function}`;
+              return (
+                <div
+                  draggable
+                  key={key}
+                  onDragStart={(e) => {
+                    e.dataTransfer.setData("application/json", key);
+                  }}
+                >
+                  <ActiveEffect
+                    key={key}
+                    effect={effect}
+                    availableEffects={options.effects.available}
+                    onChange={(name, value) => {
+                      effect.params[name] = value;
+                      propagateState(state);
+                    }}
+                  ></ActiveEffect>
+                </div>
+              );
+            })}
+          </div>
         </div>
       ) : (
         <div className="font-mono text-center text-8xl">OFFLINE</div>