re-compute stack

lib/iso.tsx

@@ -20,7 +20,7 @@ type MetaKeys = keyof Meta;
 
 export const Meta =
 {
-    Stack:[] as Array<MetasStackItem>,
+    Stack:[] as MetasStackItem[],
     Meta: {
         title:"",
         description:"",
@@ -28,6 +28,47 @@ export const Meta =
         image:"",
         canonical:""
     } as Meta,
+    ComputeFinal(inStack:MetasStackItem[], inStart=0)
+    {
+        const seed = {
+            title:"",
+            description:"",
+            keywords:"",
+            image:"",
+            canonical:""
+        };
+        if(inStack.length>0)
+        {
+            let final = {...seed, ...inStack[0]};
+            for(let i=inStart+1; i<inStack.length; i++)
+            {
+                const curr = inStack[i];
+                Object.keys(seed).forEach(key=>
+                {
+                    const lookup = key as MetaKeys
+                    const valPrev = final[lookup];
+                    const valCurr = curr[lookup];
+                    if(valPrev && valCurr && curr.concatListed)
+                    {
+                        final[lookup] = valPrev + curr.concatListed + valCurr;
+                    }
+                    else if(!valCurr && curr.dropUnlisted)
+                    {
+                        final[lookup] = "";
+                    }
+                    else
+                    {
+                        final[lookup] = valCurr||"";
+                    }
+                });
+            }
+            return final;
+        }
+        else
+        {
+            return seed;
+        }
+    },
     Context: React.createContext([[], ()=>{}] as [Get:MetasStackItem[], Set:React.StateUpdater<MetasStackItem[]>]),
     Provider({children}:{children:Children})
     {
@@ -47,24 +88,19 @@ export const Meta =
             };
         }, []);
 
-        React.useEffect(()=>{
-            const stack = binding[0];
-
-            const last = stack[stack.length-1];
-            console.log("updating page title", stack);
-            if(last && refElements.current)
+        React.useEffect(()=>
+        {
+            if(refElements.current)
             {
-                refElements.current.url.forEach(e=>e.setAttribute("content", last.canonical||""));
+                const final = Meta.ComputeFinal(binding[0]);
 
-                document.title = last.title||"";
-                refElements.current.title.forEach(e=>e.setAttribute("content", last.title||""));
-
-                refElements.current.image.forEach(e=>e.setAttribute("content", last.image||""));
-
-                refElements.current.description.forEach(e=>e.setAttribute("content", last.description||""));
+                refElements.current.url.forEach(e=>e.setAttribute("content", final.canonical||""));
+                document.title = final.title;
+                refElements.current.title.forEach(e=>e.setAttribute("content", final.title||""));
+                refElements.current.image.forEach(e=>e.setAttribute("content", final.image||""));
+                refElements.current.description.forEach(e=>e.setAttribute("content", final.description||""));
             }
-        
-        })
+        });
         return <Meta.Context.Provider value={binding}>{children}</Meta.Context.Provider>;
     },
     Metas({concatListed=undefined, dropUnlisted=false, ...props}:MetasModeArgs&MetasInputs):null
@@ -85,24 +121,6 @@ export const Meta =
                         break;
                     }
                 }
-                const previous = clone[i];
-                if(previous)
-                {
-                    Object.keys(Meta.Meta).forEach(key=>
-                    {
-                        const lookup = key as MetaKeys
-                        const valPrev = previous[lookup];
-                        const valCurr = props[lookup];
-                        if(valPrev && valCurr && concatListed)
-                        {
-                            props[lookup] = valPrev + concatListed + valCurr;
-                        }
-                        if(!valCurr)
-                        {
-                            props[lookup] = dropUnlisted ? "" : valPrev;
-                        }
-                    });
-                }
                 clone.splice(i+1, 0, {id, depth, concatListed, dropUnlisted, ...props});
                 return clone;
             });
@@ -137,7 +155,7 @@ export const Meta =
 
         if(!window.innerWidth && props.title)
         {
-            Meta.Meta.title = props.title;
+            Meta.Stack.push({id, depth, concatListed, dropUnlisted, ...props});
         }
 
         return null;

server.tsx

@@ -393,8 +393,10 @@ else if(App && TwindInst)
                 });
                 Iso.Fetch.ServerTouched = false;
     
+                Iso.Meta.Meta = Iso.Meta.ComputeFinal(Iso.Meta.Stack);
+                
                 const results = Twind.extract(bake, TwindInst);
-    
+                
                 type = `text/html`;
                 body =
     `<!doctype html>