I am working with a large array in the following format:

// Sample data
const array = [
{country: "Germany", category: "A", value: 300},
{country: "Brazil", category: "A", value: 200},
{country: "Canada", category: "A", value: 200},
{country: "Germany", category: "B", value: 100},
{country: "Brazil", category: "B", value: 400},
{country: "Canada", category: "B", value: 500},
]

and I want to want to rank the values by category and value rank and potentially add an overall_rank without considering the category:

// Expected result
[
{country: "Germany", category: "A", value: 300, rank: 1, overall_rank: 2},
{country: "Brazil", category: "A", value: 200, rank: 2, overall_rank: 3},
{country: "Canada", category: "A", value: 200, rank: 2, overall_rank: 3},
{country: "Germany", category: "B", value: 100, rank: 3, overall_rank: 4},
{country: "Brazil", category: "B", value: 200, rank: 2, overall_rank: 3},
{country: "Canada", category: "B", value: 500, rank: 1, overall_rank: 1},
]

So far I got and overall_rank working, but I am struggling ranking the values by value and category:

var overall_rank = 1;
for (var i = 0; i < array.length; i++) {
  if (i > 0 && array[i].value < array[i - 1].value) {
    overall_rank++;
  }
    array[i].overall_rank = overall_rank;
}

How to move forward?