pivot-editor/index.html

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<div id="app"></div>
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<script src="papaparse.min.js"></script>
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<!-- N -->
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<script>
var N =
{
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ID:{
Walk:0,
Instance:0
},
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Create(inMeta)
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{
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return {
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ID:{
Walk:0,
Instance:N.ID.Instance++
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},
Meta:inMeta||{},
Link:{}
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};
},
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Connect(inNodeMajor, inNodeMinor, inKey, inUnique)
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{
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if(inUnique) // bail if the nodes are already connected
{
let check = N.Step(inNodeMajor, inKey, true);
if(check)
{
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if(check.indexOf(inNodeMinor) !== -1)
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{
return;
}
}
}
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N.Step(inNodeMajor, inKey, true, true).push(inNodeMinor);
N.Step(inNodeMinor, inKey, false, true).push(inNodeMajor);
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},
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Disconnect(inNodeMajor, inNodeMinor, inKey)
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{
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let remove = (inArray, inMatch) => inArray.findIndex( (inMember, inIndex, inArray) => (inMember === inMatch) ? inArray.splice(inIndex, 1) : false );
// if no specific child was passed
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if(inNodeMinor === null)
{
// get all the children
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let check = N.Step(inNodeMajor, inKey);
if(!check){ return; }
// go down to each child ...
check.forEach( inNodeMinor =>
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{
let connections = inNodeMinor.Link[inKey];
remove( connections.Get, inNodeMajor); // ... and remove any reference to the parent
// if after the remove operation, this child has no connections on inKey, scrub the key
if(!connections.Set.length && !connections.Get.length)
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{
delete inNodeMinor.Link[inKey];
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}
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});
// we just wiped out all outgoing connections to the parent, if incoming connections are empty too we can purge the key there as well
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if(inNodeMajor.Link[inKey].Get.length == 0)
{
delete inNodeMajor.Link[inKey];
}
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return;
}
// if no specific parent was passed
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if(inNodeMajor === null)
{
// get all the parents
let check = N.Step(inNodeMinor, inKey, false);
if(!check){ return; }
// go up to each parent ...
check.forEach( inNodeMajor =>
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{
let connections = inNodeMajor.Link[inKey];
remove( connections.Set, inNodeMinor); // ... and remove any reference to the child
// if after the remove operation, this parent has no connections on inKey, scrub the key
if( !connections.Set.length && !connections.Get.length )
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{
delete inNodeMajor.Link[inKey];
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}
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});
// we just wiped out all incoming connections to the child, if outgoing connections are empty too we can purge the key there as well
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if(inNodeMinor.Link[inKey].Set.length == 0)
{
delete inNodeMinor.Link[inKey];
}
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return;
}
// if a specific parent and child were passed
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if(inNodeMajor.Link[inKey].Set.length == 1)
{
delete inNodeMajor.Link[inKey];
}
else
{
remove(inNodeMajor.Link[inKey].Set, inNodeMinor);
}
if(inNodeMinor.Link[inKey].Get.length == 1)
{
delete inNodeMinor.Link[inKey];
}
else
{
remove(inNodeMinor.Link[inKey].Get, inNodeMajor);
}
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},
Step(inNode, inKey, inForward, inForceCreate)
{
let connectionGroup = inNode.Link[inKey];
if(!connectionGroup)
{
if(inForceCreate === true)
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{
inNode.Link[inKey] = connectionGroup = {Get:[], Set:[]};
}
else
{
return false;
}
}
return (inForward === undefined || inForward === true) ? connectionGroup.Set : connectionGroup.Get;
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},
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Walk(inIterator, inNode, inKey, inForward, inTerminal)
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{
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let array = N.Step(inNode, inKey, inForward);
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if(!array.length && inTerminal)
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{
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return inTerminal(inNode);
}
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for(let i=0; i<array.length; i++)
{
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let next = array[i];
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if(next.ID.Walk !== N.ID.Walk)
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{
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next.ID.Walk = N.ID.Walk;
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//console.log("processing", next.Meta)
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let results = inIterator(next);
if(results !== false)
{
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N.Walk(inIterator, next, inKey, inForward, inTerminal);
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}
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else
{
//console.log("routine exited");
}
}
else
{
//console.log("id collision");
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}
}
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},
Path(inArray, inNode, inKey, inForward)
{
var current = inNode;
var direction = inForward||true;
for(let i=0; i<inArray.length; i++)
{
current = N.Step(current, inKey, direction)[inArray[i]];
}
return current;
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}
};
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</script>
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<!-- Pivot -->
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<script>
var Pivot =
{
Leaves:{},
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Root:N.Create({Label:"All Pivots"}),
Schema:N.Create({Label:"Column Details"}),
Proto:N.Create({Label:"User Form"}),
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Init(inColumnTypes, inColumnNames, inRows)
{
for(let i=0; i<inColumnNames.length; i++)
{
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let columnNode = N.Create({Label:inColumnNames[i], Index:i});
N.Connect(Pivot.Schema, columnNode, inColumnTypes[i]);
N.Connect(Pivot.Schema, columnNode, "all");
}
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let numeric = (N.Step(Pivot.Schema, "sum")||[]).map(column=>column.Meta.Index);
console.log(numeric);
Pivot.Leaves = inRows.map(r =>
{
numeric.forEach(index => r[index] = parseFloat(r[index])||0);
return N.Create({Row:r});
}
);
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Pivot.Init = ()=>{};
},
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Pivot(inRoot, inParent, inPivotIndicies, inSumIndicies, inDepth)
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{
//arguments:
// - a Node with leaf Nodes temporarily stored in its Meta.Leaves
// - where each leaf Node has a row of table data in it's Meta.Row
// - a list of columns to pivot on
// - a list of columns to sum
// - optional traversal depth, defaults to 0
let depth = inDepth||0;
let uniques = {};
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let indexPivot = inPivotIndicies[depth];
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inParent.Meta.Leaves.forEach((inLeaf)=>
{
let row = inLeaf.Meta.Row; // shorthand for the raw "CSV" row in the leaf Node's Meta
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let value = row[indexPivot]; // get the pivot column
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let match = uniques[value]; // check in the uniques list if this pivot column exists
if(!match)
{
// if not, store a value under that key that will be the meta object for a new child
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let clone = row.map(r=>null);
inSumIndicies.forEach((inSumIndex, inIndex, inArray)=>
{
clone[inSumIndex] = row[inSumIndex]
});
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match = uniques[value] = {
Label:value,
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Row:clone,
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IndexPivot:indexPivot,
IndexSum:inSumIndicies,
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Leaves:[],
Depth:depth
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};
// grow a child off of the parent using the meta object
N.Connect(inParent, N.Create(match), "Hierarchy");
}
else
{
// if a match does exist, sum the appropriate columns
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inSumIndicies.forEach((inSumIndex) => match.Row[inSumIndex] += row[inSumIndex]);
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}
// move the leaves into the child
match.Leaves.push(inLeaf);
});
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// get the leaves out of the parent, at this point they have been re-distributed to the children
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delete inParent.Meta.Leaves;
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let iterator = () => {};
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if(depth >= inPivotIndicies.length-1)
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{
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iterator = inLastBranch =>
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{
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inLastBranch.Meta.Leaves.forEach( inLeaf =>
{
let modifiers = [];
let collectModifier = n => modifiers.push(n);
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let connectModifiers = n => modifiers.forEach(inModifier => N.Connect(inModifier, n, "ModifyOut", true));
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// collect modifiers effecting leaves
N.Walk(collectModifier, inLeaf, "ModifyAt", false);
N.Walk(collectModifier, inLeaf, "ModifyDown", false);
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if(modifiers.length)
{
// apply them to the branch
inLastBranch.ID.Walk = N.ID.Walk;
connectModifiers(inLastBranch);
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// also walk them up and connect to parents, but with "check unique" enabled
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console.log("walking modifiers up from", inLastBranch.Meta.Label);
N.ID.Walk++;
N.Walk(connectModifiers, inLastBranch, "Hierarchy", false);
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}
// lastly connect the leaf to the branch
N.Connect(inLastBranch, inLeaf, "Leaf");
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});
delete inLastBranch.Meta.Leaves;
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return false;
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}
}
else
{
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iterator = child => {
Pivot.Pivot(inRoot, child, inPivotIndicies, inSumIndicies, depth+1);
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return false;
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};
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}
N.Walk(iterator, inParent, "Hierarchy");
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return inParent;
},
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Create(inLabel, inPivotIndicies, inSumIndicies)
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{
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N.ID.Walk++;
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/*
let sumColumns = (N.Step(Pivot.Schema, "sum")||[]).map(column=>column.Meta.Index);
let labelColumns = (N.Step(Pivot.Schema, "label")||[]).map(column=>column.Meta.Index);
*/
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let pivotRoot = N.Create({Label:inLabel, Leaves:Pivot.Leaves});
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N.Connect(Pivot.Root, pivotRoot, "Pivot");
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return Pivot.Pivot(pivotRoot, pivotRoot, inPivotIndicies, inSumIndicies);
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},
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Delete(inRoot)
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{
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// disconnect modifiers
let check = N.Step(inRoot, "ModifyUp", false);
if(check)
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{
while(check.length>0)
{
Pivot.Unmodify(check[0]);
}
}
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// disconnect leaves from terminal branches
N.Walk(()=>{}, inRoot, "Hierarchy", true, terminal=>{
N.Disconnect(terminal, null, "Leaf");
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});
// disconnect from app
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N.Disconnect(null, inRoot, "Pivot");
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},
Modify(inNode)
{
let modified = N.Create({Label:"Modifier"});
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// traverse
let gatherUp = n => N.Connect(modified, n, "ModifyUp");
let gatherDown = n => N.Connect(modified, n, "ModifyDown");
let gatherOut = n => N.Connect(modified, n, "ModifyOut");
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N.ID.Walk++;
inNode.ID.Walk = N.ID.Walk;
// at
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N.Connect(modified, inNode, "ModifyAt");
// up
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N.Walk(gatherUp, inNode, "Hierarchy", false);
// down 1
N.Walk(gatherDown, inNode, "Hierarchy", true, terminal=>
{
// down 2
// for each terminal node, step down into its leaves and gather down
N.Walk(gatherDown, terminal, "Leaf", true, leaf=>
{
// out 1
// walk back up on the leaf connections on other trees
N.Walk(gatherOut, leaf, "Leaf", false, terminal=>
{
// out 2
// and continueup the hierarchy
N.Walk(gatherOut, terminal, "Hierarchy", false);
});
});
});
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return modified;
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},
Unmodify(inModifier)
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{
N.Disconnect(inModifier, null, "ModifyUp");
N.Disconnect(inModifier, null, "ModifyDown");
N.Disconnect(inModifier, null, "ModifyOut");
N.Disconnect(inModifier, null, "ModifyAt");
N.Disconnect(null, inModifier, "Modifier");
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}
};
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</script>
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<!-- rendering -->
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<script type="module">
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/*
Pivot.Init(
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["id", "type-a", "type-b", "count", "extra"],
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["label", "label", "label", "sum", "sum"],
[
["#1", "a", "long", 1, 4],
["#2", "b", "long", 2, 4],
["#3", "b", "short", 2, 4],
["#4", "a", "long", 3, 4],
["#5", "b", "short", 1, 4],
["#6", "a", "short", 0, 4],
["#7", "b", "short", 7, 4]
]
);
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*/
Papa.parse("./sample.csv",
{
download:"true",
complete: function(results)
{
let columnNames = results.data.shift();
let columnTypes = ([...columnNames]).fill("hidden");
columnTypes[29] = "sum";
columnTypes[30] = "sum";
columnTypes[31] = "sum";
columnTypes[32] = "sum";
columnTypes[33] = "sum";
columnTypes[7 ] = "label";
columnTypes[8 ] = "label";
columnTypes[9 ] = "label";
columnTypes[10] = "label";
columnTypes[11] = "label";
Pivot.Init(
columnTypes,
columnNames,
results.data
);
Render();
}
});
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import { h, render, createContext, Fragment } from 'https://cdn.skypack.dev/preact';
import { useReducer, useState } from 'https://cdn.skypack.dev/preact/hooks';
import { css, cx } from 'https://cdn.skypack.dev/@emotion/css';
import htm from 'https://unpkg.com/htm?module';
const html = htm.bind(h);
let PivotForm = props =>
{
let styles = css`
position:realtive;
box-sizing: border-box;
padding: 10px;
color:black;
font-family:sans-serif;
.Title
{
font-size:24px;
font-weight:100;
}
.Section
{
padding:10px 0 10px 0;
.Heading
{
display:inline-block;
color:#666;
font-family:sans-serif;
font-size:12px;
font-weight:900;
text-transform:uppercase;
}
.Group
{
display:inline-block;
padding:5px;
border-radius:5px;
margin:3px;
background:rgba(0, 0, 0, 0.3)
}
}
`;
let pivotColumns = N.Step(Pivot.Schema, "label")||[];
let pivotColumnsUsed = N.Step(Pivot.Proto, "used-pivot")||[];
let sumColumns = N.Step(Pivot.Schema, "sum")||[];
//let sumColumnsUsed = N.Step(Pivot.Proto, "used-sum")||[];
let indiciesPivot = pivotColumnsUsed.map(node=>node.Meta.Index);
let indiciesSum = sumColumns.map(node=>node.Meta.Index);
//let indiciesSum = sumColumnsUsed.map(node=>node.Meta.Index);
let displayPivotsAll = html`
<div class="Section">
<div class="Heading">Available Columns</div>
<div class="Group">
${pivotColumns.map( columnPivot =>
{
let attributes = {};
if(N.Step(columnPivot, "used-pivot", false))
{
attributes.disabled = true;
}
else
{
attributes.onClick = e=>
{
N.Connect(Pivot.Proto, columnPivot, "used-pivot");
Render();
}
}
return html`<button ...${attributes}>${columnPivot.Meta.Label}</button>`;
})}
</div>
</div>
`;
let displayPivotsPending = null;
if(pivotColumnsUsed.length)
{
displayPivotsPending = html`
<div class="Section">
<div class="Heading">Pending Pivot</div>
<div class="Group">
${pivotColumnsUsed.map(columnPivot=>html`
<button onClick=${e=>{N.Disconnect(Pivot.Proto, columnPivot, "used-pivot");Render();}}>
${columnPivot.Meta.Label}
</button>
`)}
</div>
<button onClick=${e=>{
N.Disconnect(Pivot.Proto, null, "used-pivot");
N.Disconnect(Pivot.Proto, null, "used-sum");
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Pivot.Create(pivotColumnsUsed.map(column=>column.Meta.Label).join("|"), indiciesPivot, indiciesSum);
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Render();
}}>Create</button>
</div>
`;
}
return html`
<div class=${styles}>
<div class="Title">Create New Pivot</div>
${displayPivotsAll}
${displayPivotsPending}
</div>
`;
}
let Section = props =>
{
let styles = css`
.Heading
{
padding:6px 0 6px 0;
color:#666;
font-weight:900;
font-size:12px;
text-transform:uppercase;
cursor:pointer;
span
{
display:inline-block;
width:20px;
height:20px;
margin-right:10px;
border-radius:20px;
background:black;
color:white;
text-align:center;
}
}
.Heading:hover
{
color:black;
}
.Body
{
position:relative;
padding:10px 0 20px 30px;
&::before
{
content: " ";
display:block;
position:absolute;
top:-8px;
left:8px;
width:3px;
height:100%;
background:black;
}
}
`;
let [openGet, openSet] = useState(false);
return html`
<div class=${styles}>
<div class="Heading" onClick=${e=>openSet(!openGet)}>
<span>${openGet ? `` : `+`}</span>
${props.label}
</div>
${ openGet ? html`<div class="Body">${props.children}</div>` : null }
</div>
`;
}
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let ModificationsIcon = ({node}) =>
{
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let modsUp = N.Step(node, "ModifyUp", false)||[];
let modsDown = N.Step(node, "ModifyDown", false)||[];
let modsAt = N.Step(node, "ModifyAt", false)||[];
let modsOut = N.Step(node, "ModifyOut", false)||[];
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var button = null;
if(modsAt.length)
{
button = html`<button onClick=${e=>{Pivot.Unmodify(modsAt[0]); Render();}}>-</button>`;
}
else
{
button = html`<button onClick=${e=>{Pivot.Modify(node); Render();}}>+</button>`;
}
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let padding = 7;
let icon = 0;
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let styles = css`
position:relative;
display:inline-block;
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vertical-align:middle;
width:${padding*2 + icon}px;
height:${padding*2 + icon}px;
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margin:${padding*2};
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.Icon
{
position:absolute;
display:inline-block;
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width:${padding*2 + icon}px;
height:${padding*2 + icon}px;
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text-align:center;
font-size:9px;
font-family:sans-serif;
font-weight:900;
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line-height:${padding*2 + icon}px;
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&::after
{
content:" ";
display:block;
position:absolute;
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width:${icon}px;
height:${icon}px;
border:${padding}px solid transparent;
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}
&.Down
{
left:0;
bottom:100%;
&::after
{
top:100%;
border-top-color:green;
border-bottom:0px solid transparent;
}
}
&.At
{
top:0;
left:100%;
&::after
{
top:0;
right:100%;
border-right-color:red;
border-left:0px solid transparent;
}
}
&.Up
{
left:0;
top:100%;
&::after
{
bottom:100%;
border-bottom-color:orange;
border-top:0px solid transparent;
}
}
&.Out
{
top:0;
right:100%;
&::after
{
top:0;
left:100%;
border-left-color:grey;
border-right:0px solid transparent;
}
}
}
`;
return html`
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<div class=${styles}>
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${modsDown.length ? html`<div class="Icon Down">${modsDown.length}</div>` : null}
${modsAt.length ? html`<span class="Icon At">${modsAt.length}</span>` : null}
${modsUp.length ? html`<span class="Icon Up">${modsUp.length}</span>` : null}
${modsOut.length ? html`<span class="Icon Out">${modsOut.length}</span>` : null}
</div>
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${button}
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`;
};
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let PivotBranch = props =>
{
let row = props.node.Meta.Row;
let displayCellsModify = row.map(column=>false);
props.node.Meta.IndexSum.forEach(i=>
{
displayCellsModify[i] = html`<td><input type="number" value=${row[i]}/></td>`;
});
displayCellsModify.forEach((cell, i)=>
{
if(!cell)
{
displayCellsModify[i] = html`<td>${row[i]}</td>`
}
});
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let displayCells = (node, visible) =>
{
let output = [];
node.Meta.Row.forEach((column, i)=>
{
if(visible[i])
{
output.push( h("td", null, column) );
}
}
);
return output;
}
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let stylesLeaf = css`
background:#ddd;
color:#333;
`;
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return html`
<tbody>
<tr>
<td>
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<strong class=${css`margin-left:${props.node.Meta.Depth*10}px;`}>${props.node.Meta.Label}</strong>
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</td>
<td>
<${ModificationsIcon} node=${props.node}><//>
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</td>
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${displayCells(props.node, props.visible)}
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</tr>
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${(N.Step(props.node, "Leaf")||[]).map(leaf =>
{
return html`
<tr class=${stylesLeaf}>
<td></td>
<td><${ModificationsIcon} node=${leaf}><//></td>
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${displayCells(leaf, props.visible)}
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</tr>
`;
}
)}
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</tbody>
`;
};
let PivotRoot = ({pivot}) =>
{
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let labels = (N.Step(Pivot.Schema, "all")||[]).map(column => column.Meta.Label);
let [visibleGet, visibleSet] = useState(labels.map(column=>true));
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let stylesRoot = css`
display:block;
box-sizing:border-box;
padding:15px;
font-family:sans-serif;
`;
let stylesHeading = css`
margin: 0 0 15px 0;
font-weight:0;
font-size:24px;
`;
let modifiers = N.Step(pivot, "ModifyUp", false) || [];
let handleDelete = ()=>
{
Pivot.Delete(pivot);
Render();
};
let rows = [];
N.ID.Walk++;
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N.Walk(n=>rows.push(h(PivotBranch, {node:n, visible:visibleGet}, null)), pivot, "Hierarchy");
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return html`
<div class=${stylesRoot}>
<div key="heading" class=${stylesHeading}>${pivot.Meta.Label}</div>
<${Section} key="settings" label=${`Settings`}>
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<h3>pivot</h3>
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<button onClick=${handleDelete}>Destroy Pivot</button>
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<h3>columns</h3>
<div>
<button onClick=${e =>
{
visibleSet(visibleGet.map(v=>true))
}
}>Show All</button>
<button onClick=${e =>
{
visibleSet(visibleGet.map(v=>false))
}
}>Hide All</button>
</div>
<div>
${visibleGet.map((v, i) => html`<button onClick=${e=>
{
let clone = [...visibleGet];
clone[i] = !v;
visibleSet(clone);
}
}>${labels[i]} ${v ? `visible`:`hidden`}</button>`)}
</div>
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<//>
<${Section} key="tree" label=${"Tree"}>
<table>
${rows}
</table>
<//>
</div>
`;
};
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let ElRoot = props =>
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{
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let pivots = N.Step(Pivot.Root, "Pivot")||[];
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return h("div", null, [
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h(PivotForm),
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pivots.map(pivot=>h(PivotRoot, {key:pivot.Meta.Label, pivot}))
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])
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};
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const Render = () => render(h(ElRoot), document.querySelector("#app"));
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Render();
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</script>