I am struggling with merging an array of objects on the same key - "model" and restructuring it.

It should be also dynamic.

Original Array

var inputBl = [
    { model: 1, dim: 'd1', val: 'v1' },
    { model: 2, dim: 'd2', val: 'v2' },
    { model: 1, dim: 'd3', val: 'v3' },
    
]

First I got all unique model keys:

var keys = [];

inputBl.forEach(function(item) {
    keys.push(item.model);
});

let uniqueItems = [...new Set(keys)];

And then tried to restructure the object:

var obj = [];

uniqueItems.forEach(function(model) {
    inputBl.forEach(function(item) {
        if (item.model == model) {
            obj.push({model: {dimensions: [item.dim]}})
        }
    });
});

But I get:

[ { model: [d1] }, { model: [d2] }, { model: [d3] }]

The ideal result (dynamic):

var ideal = [
    { 1: { dimensions: [d1, d3], values: [v1, v3] } },
    { 2: { dimensions: [d2], values: [v2] } },
];