# API

**Assembly:** `Spark.Crafting` **Interface:** `ICraftingPlugin` **Implementation:** `CraftingPlugin`

## Interface

```csharp
public interface ICraftingPlugin
{
    IReadOnlyList<CraftingRecipeEntry> GetAllRecipes();
    CraftingRecipeEntry FindRecipeById(string recipeId);
    CraftingRecipeEntry FindRecipeForItem(ItemEntry craftedItem);
    IReadOnlyList<CraftingRecipeEntry> FindRecipesForItem(ItemEntry craftedItem);
}
```

## Methods

### GetAllRecipes

```csharp
IReadOnlyList<CraftingRecipeEntry> GetAllRecipes()
```

Returns all crafting recipes in the database.

### FindRecipeById

```csharp
CraftingRecipeEntry FindRecipeById(string recipeId)
```

Returns a specific recipe by ID, or `null` if not found.

### FindRecipeForItem / FindRecipesForItem

```csharp
CraftingRecipeEntry FindRecipeForItem(ItemEntry craftedItem)
IReadOnlyList<CraftingRecipeEntry> FindRecipesForItem(ItemEntry craftedItem)
```

Find recipes that produce a given item. `FindRecipeForItem` returns the first match; `FindRecipesForItem` returns all matches.

## CraftingRecipeEntry

Extends `SparkDatabaseEntry`. Defines a crafting recipe.

| Field                | Type                        | Description                |
| -------------------- | --------------------------- | -------------------------- |
| `recipeCategory`     | CraftingRecipeCategoryEntry | Recipe category            |
| `craftedItem`        | ItemEntry                   | Item produced              |
| `craftDuration`      | float                       | Time to craft (seconds)    |
| `autoLearn`          | bool                        | Automatically known        |
| `requiredComponents` | List\<RecipeComponent>      | Materials needed           |
| `onCraftTriggers`    | List\<TriggerEntry>         | Triggers executed on craft |

### RecipeComponent

| Field    | Type      | Description       |
| -------- | --------- | ----------------- |
| `item`   | ItemEntry | Required material |
| `amount` | int       | Quantity needed   |

## CraftingRecipeCategoryEntry

Extends `SparkDatabaseEntry`. Groups recipes into categories for UI organization.

## Events

| Event                 | Description                     |
| --------------------- | ------------------------------- |
| `RecipeLockedEvent`   | Recipe locked for a character   |
| `RecipeUnlockedEvent` | Recipe unlocked for a character |
| `RecipeCraftedEvent`  | Recipe successfully crafted     |

## Commands

| Command            | Fields                                                 | Description     |
| ------------------ | ------------------------------------------------------ | --------------- |
| `CraftItemCommand` | `crafter` (GameObject), `recipe` (CraftingRecipeEntry) | Execute a craft |

## Save Data

### CraftingSaveData

Extends `SaveDataEntry`. Tracks which recipes are unlocked.

**Methods:**

```csharp
bool IsRecipeUnlocked(string recipeId)
void UnlockRecipe(string recipeId)
void LockRecipe(string recipeId)
void ClearUnlockedRecipes()
```

On `InitializeDefaults()`, all recipes with `autoLearn = true` are automatically unlocked.

## Usage

```csharp
var crafting = Spark.GetPlugin<ICraftingPlugin>();
if (crafting != null)
{
    // List all recipes
    var recipes = crafting.GetAllRecipes();

    // Find a specific recipe
    var recipe = crafting.FindRecipeById("iron_sword_recipe");

    // Find recipes that produce an item
    var swordRecipes = crafting.FindRecipesForItem(ironSwordEntry);

    // Craft via command
    Spark.Network?.ExecuteCommand(new CraftItemCommand
    {
        crafter = playerObject,
        recipe = recipe
    });
}
```


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