Gw2e-recipe-nesting NPM

recipe-nesting

Nest an array of recipes into a tree

This is part of gw2efficiency. Please report all issues in the central repository.

Install

npm install gw2e-recipe-nesting

This module can be used for Node.js as well as browsers using Browserify. If you want to calculate the price of the tree generated from this, take a look at gw2e-recipe-calculation.

Usage

import nesting from 'gw2e-recipe-nesting'

// Expects a list of recipes in the API format
// -> https://github.com/arenanet/api-cdi/blob/master/v2/recipes.js
// This needs to include at least the recipe you want to transform
// and all sub-recipes including guild upgrade recipes
// (since we want to build a full tree).
// It is easiest to just pass in all existing recipes. ;)
let recipes = [
  {
    "type": "Refinement",
    "output_item_id": 19713,
    "output_item_count": 1,
    "min_rating": 75,
    "time_to_craft_ms": 2000,
    "disciplines": ["Artificer", "Weaponsmith", "Scribe", "Huntsman"],
    "flags": ["AutoLearned"],
    "ingredients": [{
      "item_id": 19726,
      "count": 2
    }],
    "id": 1,
    "chat_link": "[&CQEAAAA=]"
  },
  // ...
]

// This is a (optional) map of guild upgrade ids to item ids. This should only be used
// for type == Decoration, and resolves all the Basic Decorations needed for scribing
let decorations = {
  42: 1337,
  // ...
}

let nestedRecipes = nesting(recipes, decorations)
// The output is an array consisting of the following:
nestedRecipes = [
  {
    "id": 13243,
    "quantity": 5,
    "output": 1,
    "components": [
      {
        "id": 19712,
        "quantity": 2,
        "output": 1,
        "components": [
          {
            "id": 19725,
            "quantity": 3
          },
          // ...
        ]
      },
      // ...
    ]
  }
  // ...
]