pivot-editor/index.html
2021-05-08 13:21:43 -04:00

210 lines
5.4 KiB
HTML

<script>
var N = {
Create:(inMeta, ...inChildren) =>
{
var output = {
Meta:inMeta,
Children:[],
Parents:[],
/*
WalkID:0,
GetUpward:[],
GetDownward:[],
GetOutside:[],
SetUpward:[],
SetDownward:[],
SetOutside:[]
*/
};
inChildren.forEach( inChild => N.Connect(output, "Children", inChild, "Parents") );
return output;
},
Connect:(inParent, inParentRefs, inChild, inChildRefs) =>
{
inParent[inParentRefs].push(inChild);
inChild[inChildRefs].push(inParent);
},
Disconnect:(inParent, inParentRefs, inChild, inChildRefs) =>
{
let checkRemove = (inArray, inMember) =>
{
inArray.findIndex( (inMember, inIndex, inArray) => (inMember === match) ? inArray.splice(inIndex, 1) : false );
};
checkRemove(inParent[inParentRefs], inChild);
checkRemove(inChild[inChildRefs], inParent);
},
Walk:(inNode, inKey, inIterator, inWalkID) =>
{
let array = inNode[inKey];
for(let i=0; i<array.length; i++)
{
let next = array[i];
if(next.WalkID !== inWalkID)
{
next.WalkID = inWalkID;
let results = inIterator(next);
if(results !== false)
{
N.Walk(next, inKey, inIterator, inWalkID);
}
}
}
},
Modify(inNode)
{
inNode.WalkID = "tweak-"+Math.random();
let leaves = [];
let gatherUp = n => N.Connect(inNode, "SetUpward", n, "GetUpward");
let gatherDown = n =>
{
N.Connect(inNode, "SetDownward", n, "GetDownward");
n.Children.length == 0 ? leaves.push(n) : null;
};
let gatherOut = n => N.Connect(inNode, "SetOutside", n, "GetOutside");
N.Walk(inNode, "Parents", gatherUp, inNode.WalkID);
N.Connect(inNode, "SetDownward", inNode, "GetDownward");
N.Walk(inNode, "Children", gatherDown, inNode.WalkID);
leaves.forEach(leaf=>N.Walk(leaf, "Parents", gatherOut, inNode.WalkID));
}
// delete modify
// create pivot
// delete pivot
};
</script>
<script>
Subdivide = (inNode, inColumnIndex, inSumIndicies) =>
{
let uniques = {};
inNode.Meta.Rows.forEach((inRow)=>
{
let value = inRow[inColumnIndex];
let match = uniques[value];
if(!match)
{
match = uniques[value] = {Sum:[...inRow], Rows:[]};
N.Connect(inNode, "Children", N.Create(match), "Parents");
}
else
{
inSumIndicies.forEach(inIndex => match.Sum[inIndex] += inRow[inIndex]);
}
match.Rows.push(inRow);
});
return inNode;
};
let Leafify = inRows => inRows.map(r => N.Create({Row:r}));
let Pivot = (inParent, inColumnIndicies, inSumIndicies, inDepth) =>
{
let depth = inDepth||0;
let uniques = {};
let columnIndex = inColumnIndicies[depth];
inParent.Meta.Leaves.forEach((inLeaf)=>
{
try{
let row = inLeaf.Meta.Row;
let value = row[columnIndex];
let match = uniques[value];
if(!match)
{
match = uniques[value] = {_:value, Row:[...row], Leaves:[]};
N.Connect(inParent, "Children", N.Create(match), "Parents");
}
else
{
inSumIndicies.forEach(inIndex => match.Row[inIndex] += row[inIndex]);
}
match.Leaves.push(inLeaf);
}
catch(e)
{
console.log(e);
}
});
//delete inParent.Meta.Leaves;
if(depth == inColumnIndicies.length-1)
{
// cant go any deeper
inParent.Children.forEach( inChild =>
{
inChild.Meta.Leaves.forEach( inLeaf =>
{
N.Connect(inChild, "Children", inLeaf, "Parents");
});
});
}
else
{
inParent.Children.forEach( child =>
{
Pivot(child, inColumnIndicies, inSumIndicies, depth+1);
});
}
};
let csv = Leafify([
["a", "long", 1],
["b", "long", 2],
["b", "short", 2],
["a", "long", 3],
["b", "short", 1],
["a", "short", 0],
["b", "short", 7],
]);
let pivotRoot = N.Create({Leaves:csv});
Pivot(pivotRoot, [0, 1], [2]);
console.log(pivotRoot);
</script>
<!--=
<script>
let tree1 = N.Create("root1",
N.Create("branch1",
N.Create("leaf1"),
N.Create("leaf2"),
N.Create("leaf3"),
),
N.Create("branch2",
N.Create("leaft3"),
N.Create("leaft4")
)
);
let leaves = [];
let leavesCollect = n =>
{
if(n.Children.length == 0)
{
leaves.push(n);
}
};
N.Walk(tree1, "Children", leavesCollect, 1);
let tree2 = N.Create("root2",
N.Create("branch3",
N.Create("leaf5"),
N.Create("leaf6")
),
N.Create("branch4", ...leaves)
);
let orchard = N.Create("orchard", tree1, tree2);
/*************************************************************/
N.Modify(tree1);
console.log(tree1);
</script>
-->