1 files changed, 82 insertions, 0 deletions
diff --git a/src/deconstruct.ts b/src/deconstruct.ts
new file mode 100644
index 0000000..3212645
--- /dev/null
+++ b/src/deconstruct.ts
@@ -0,0 +1,82 @@
+export type SFItem = {
+    name: string,
+    id: string,
+    type: 'base' | 'derived',
+    recipe: Recipe,
+}
+
+export type BaseComponent = [string, number];
+export type BaseComponents = Array<BaseComponent>;
+
+export type Recipe = {
+    in: Array<[string, number]>,
+    out: number
+};
+
+const ITEMS: Array<SFItem> = [
+    {
+        name: 'Iron Plate',
+        id: 'iron_plate',
+        type: 'base',
+        recipe: {
+            in: [['iron_ingot', 30]],
+            out: 20
+        }
+    },
+    {
+        name: 'Iron Rod',
+        id: 'iron_rod',
+        type: 'base',
+        recipe: {
+            in: [['iron_ingot', 15]],
+            out: 15
+        }
+    },
+    {
+        name: 'Screw',
+        id: 'screw',
+        type: 'derived',
+        recipe: {
+            in: [['iron_rod', 10]],
+            out: 40
+        }
+    },
+];
+
+export function get(id: string, items: Array<SFItem>): SFItem | undefined {
+    for (const item of items) {
+        if(item.id === id) {
+            return item;
+        }
+    }
+    return undefined;
+}
+
+export function add(toAdd: BaseComponent, components: BaseComponents) {
+    for (const [i, val] of components.entries()) {
+        if (toAdd[0] === val[0]) {
+            components[i][1] += toAdd[1];
+            return components;
+        }
+    }
+    return components.push(toAdd);
+}
+
+function ratio(item: SFItem) {
+    const 
+}
+
+export function derive(item: SFItem): BaseComponents {
+    switch(item.type) {
+        case "derived":
+            let total = 0;
+            for (const input of item.recipe.in) {
+                const component = get(input[0], ITEMS);
+                if (component) {
+                    total += input[1] * ratio(component);
+                }
+            }
+        case "base":
+            return [item.recipe.in[0]];
+    }
+}