Initial conversion to NamedTuple representation

data/recipes/items/components/ai_limiter.json

@@ -3,6 +3,7 @@
     "component"
   ],
   "machine": "assembler",
+  "stack_size": 100,
   "recipes": [
     {
       "input": {
@@ -14,7 +15,6 @@
       },
       "crafting_time": 12,
       "clicks": 3,
-      "stack_size": 100,
       "requires": "caterium_electronics"
     }
   ]

data/recipes/machine/production/constructor.json

@@ -21,4 +21,4 @@
       }
     }
   ]
-}
+}

data/recipes/machine/production/miner_mk1.json

@@ -2,7 +2,7 @@
   "type": [
     "machine"
   ],
-  "is": "miner",
+  "alias": "miner",
   "machine": "_craft_bench",
   "power_usage": 5,
   "size": [

data/recipes/machine/production/miner_mk2.json

@@ -2,7 +2,7 @@
   "type": [
     "machine"
   ],
-  "is": "miner",
+  "alias": "miner",
   "machine": "_craft_bench",
   "power_usage": 12,
   "size": [

data/recipes/machine/production/oil_refinery.json

@@ -3,6 +3,7 @@
     "machine"
   ],
   "machine": "_craft_bench",
+  "size": [ 6, 10, 10 ],
   "power_usage": 50,
   "recipes": [
     {
@@ -12,8 +13,7 @@
       },
       "output": {
         "smelter": 1
-      },
-      "size": [ 6, 10, 10 ]
+      }
     }
   ]
 }

data/recipes/machine/production/smelter.json

@@ -3,6 +3,7 @@
     "machine"
   ],
   "machine": "_craft_bench",
+  "size": [ 6, 10, 10 ],
   "power_usage": 4,
   "recipes": [
     {
@@ -12,8 +13,7 @@
       },
       "output": {
         "smelter": 1
-      },
-      "size": [ 6, 10, 10 ]
+      }
     }
   ]
 }

graph.py

@@ -16,7 +16,7 @@ def graph(cookbook: satisfactory.Cookbook, targets: Iterable[str]):
     while remain:
         output = remain.pop()
 
-        for need in cookbook.recipes(output)[0]['input']:
+        for need in cookbook.recipes(output)[0].input:
             print(f"{need} -> {output}")
             if need not in seen:
                 remain.add(need)

requirements.py

@@ -15,9 +15,9 @@ def basic_rate(recipe: Dict) -> Fraction:
     :param recipe:
     :return:
     """
-    for output, count in recipe['output'].items():
+    for output, count in recipe.output.items():
         return Fraction(
-            count, recipe['crafting_time']
+            count, recipe.crafting_time
         )
 
 
@@ -48,17 +48,17 @@ def required_rates(
                 continue
 
             # Assume we're using the default recipe
-            dst_recipe = recipes[dst_name]['recipes'][0]
+            dst_recipe = recipes[dst_name].recipes[0]
 
             # Calculate the fraction of the base rate we need to satisfy, and
             # append our (scaled) inputs to the request queue.
             normal_rate = basic_rate(dst_recipe)
             scale = dst_rate / normal_rate
 
-            for src_name, src_count in dst_recipe['input'].items():
+            for src_name, src_count in dst_recipe.input.items():
                 src_rate = Fraction(
                     src_count,
-                    dst_recipe['crafting_time']
+                    dst_recipe.crafting_time
                 ) * scale
                 remain.append({src_name: src_rate})
 
@@ -90,11 +90,11 @@ def required_machines(recipes: satisfactory.Cookbook, rates: Dict[str, Fraction]
         descriptor = recipes[name]
 
         normal_rate = Fraction(
-            descriptor['recipes'][0]['output'][name],
-            descriptor['recipes'][0]['crafting_time']
+            descriptor.recipes[0].output[name],
+            descriptor.recipes[0].crafting_time
         )
 
-        machine = descriptor['machine']
+        machine = descriptor.machine
         required_machines[machine][name] += requested_rate / normal_rate
 
     return required_machines
@@ -115,7 +115,8 @@ def required_power(recipes: satisfactory.Cookbook, machines: Dict[str, int]) ->
     for machine, buckets in machines.items():
         for result, rate in buckets.items():
             count = int(math.ceil(rate))
-            total += count * recipes[machine]['power_usage']
+            source = recipes[machine]
+            total += count * source.power_usage
             print(machine, result, math.ceil(rate))
 
     return total
@@ -164,7 +165,7 @@ def main():
 
     # Create an initial name:rate request for all of the target items, then
     # create a plan for their creation.
-    request = [{n: basic_rate(recipes[n]['recipes'][0]) for n in args.item}]
+    request = [{n: basic_rate(recipes[n].recipes[0]) for n in args.item}]
 
     plan(recipes, request)
 

satisfactory/__init__.py

@@ -1,11 +1,34 @@
 import os
 import json
+import logging
 
-from typing import Dict, Generator, Iterable
+from typing import Dict, Generator, Iterable, NamedTuple, Set, List, Optional
+
+
+class Recipe(NamedTuple):
+    input: Dict[str, int]
+    output: Dict[str, int]
+
+    crafting_time: Optional[int] = None
+    clicks: Optional[int] = None
+    stage: Optional[str] = None
+    requires: Optional[str] = None
+
+
+class Item(NamedTuple):
+    type: Set[str]
+    machine: str
+    recipes: List[Recipe]
+
+    alias: Optional[str] = None
+    stack_size: Optional[int] = None
+    power_usage: Optional[int] = None
+    size: Optional[List[int]] = None
+    requires: Optional[str] = None
 
 
 class Cookbook(object):
-    __recipes: Dict[str, Dict]
+    __recipes: Dict[str, Item]
 
     def __init__(self, root: str):
         self.__recipes = dict()
@@ -14,8 +37,16 @@ class Cookbook(object):
             for f in files:
                 path = os.path.join(dirname, f)
                 name, _ = os.path.splitext(f)
+
                 with open(path, 'r') as src:
-                    self.__recipes[name] = json.load(src)
+                    j = json.load(src)
+
+                    try:
+                        recipes = list(Recipe(**r) for r in j['recipes'])
+                        j['recipes'] = recipes
+                        self.__recipes[name] = Item(**j)
+                    except Exception as ex:
+                        logging.error(f"Could not load {name}: {ex}")
 
     def __getitem__(self, item: str) -> Dict[str, Dict]:
         return self.__recipes[item]
@@ -31,14 +62,14 @@ class Cookbook(object):
         :param name: The target item name
         :return: A sequence of possible recipes for the target item
         """
-        return self.__recipes[name]['recipes']
+        return self.__recipes[name].recipes
 
     def is_component(self, name: str) -> bool:
         """
         :param name: The name of an item
         :return: Whether the item is a component; ie, craftable.
         """
-        return 'component' in self.__recipes[name]['type']
+        return 'component' in self.__recipes[name].type
 
     def components(self) -> Generator[str, None, None]:
         """
@@ -51,7 +82,7 @@ class Cookbook(object):
         :param name: The name of an item
         :return: Whether the item must have harvested (rather than crafted)
         """
-        return 'resource' in self.__recipes[name]['type']
+        return 'resource' in self.__recipes[name].type
 
     def resources(self) -> Generator[str, None, None]:
         """