{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$id": "troika-item",
    "title": "Troika! Item",
    "description": "An item in the Troika! RPG system",
    "type": "object",
    "properties": {
        "name": {
            "type": "string",
            "description": "Item name"
        },
        "type": {
            "type": "string",
            "enum": [
                "weapon",
                "armor",
                "shield",
                "tool",
                "provision",
                "currency",
                "treasure",
                "component",
                "mount",
                "container",
                "clothing",
                "jewelry",
                "book",
                "misc"
            ],
            "description": "Item category"
        },
        "description": {
            "type": "string",
            "description": "Item description"
        },
        "damageAs": {
            "type": "string",
            "description": "Damage table reference for weapon damage"
        },
        "slots": {
            "oneOf": [
                {
                    "type": "integer",
                    "minimum": 0,
                    "description": "Fixed number of inventory slots"
                },
                {
                    "type": "string",
                    "description": "Variable slots based on formula (e.g., 'double armor value', 'varies')"
                }
            ],
            "description": "Number of inventory slots the item takes up"
        },
        "value": {
            "oneOf": [
                {
                    "type": "integer",
                    "minimum": 0,
                    "description": "Fixed value in silver pence"
                },
                {
                    "type": "string",
                    "description": "Variable value (e.g., '10d6 silver pence', 'priceless')"
                }
            ],
            "description": "Item's monetary value"
        },
        "quantity": {
            "oneOf": [
                {
                    "type": "integer",
                    "minimum": 1,
                    "description": "Fixed quantity"
                },
                {
                    "type": "string",
                    "description": "Dice expression for quantity (e.g., '1d6', '2d6')"
                }
            ],
            "default": 1,
            "description": "Quantity of the item"
        },
        "weapon": {
            "$ref": "#/definitions/weapon",
            "description": "Weapon properties if this is a weapon"
        },
        "armor": {
            "$ref": "#/definitions/armor",
            "description": "Armor properties if this is armor"
        },
        "tool": {
            "$ref": "#/definitions/tool",
            "description": "Tool properties if this is a tool"
        },
        "provision": {
            "$ref": "#/definitions/provision",
            "description": "Provision properties if this is a provision"
        },
        "container": {
            "$ref": "#/definitions/container",
            "description": "Container properties if this is a container"
        },
        "mount": {
            "$ref": "#/definitions/mount",
            "description": "Mount properties if this is a mount"
        },
        "specialProperties": {
            "type": "array",
            "items": {
                "type": "string"
            },
            "description": "Special magical or unique properties"
        },
        "bonuses": {
            "type": "array",
            "items": {
                "$ref": "#/definitions/bonus"
            },
            "description": "Bonuses provided by the item"
        },
        "requirements": {
            "type": "array",
            "items": {
                "type": "string"
            },
            "description": "Requirements to use the item effectively"
        },
        "durability": {
            "type": "object",
            "properties": {
                "current": {
                    "type": "integer",
                    "minimum": 0
                },
                "maximum": {
                    "type": "integer",
                    "minimum": 0
                },
                "type": {
                    "type": "string",
                    "enum": [
                        "fragile",
                        "normal",
                        "durable",
                        "indestructible"
                    ]
                }
            },
            "description": "Item durability tracking"
        },
        "charges": {
            "type": "object",
            "properties": {
                "current": {
                    "type": "integer",
                    "minimum": 0
                },
                "maximum": {
                    "type": "integer",
                    "minimum": 0
                },
                "rechargeMethod": {
                    "type": "string",
                    "description": "How to recharge (e.g., 'plasmic core', 'rest', 'stamina')"
                },
                "rechargeCost": {
                    "type": "string",
                    "description": "Cost to recharge (e.g., '1 stamina per charge', '1 plasmic core')"
                },
                "rechargeTime": {
                    "type": "string",
                    "description": "Time required to recharge (e.g., '6 minutes per charge')"
                }
            },
            "description": "Charge tracking for items like fusils and pistolets"
        },
        "tags": {
            "type": "array",
            "items": {
                "type": "string"
            },
            "description": "Descriptive tags for organization and searching"
        },
        "alternatives": {
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "description": {
                        "type": "string"
                    },
                    "properties": {
                        "type": "object"
                    }
                },
                "required": [
                    "description"
                ]
            },
            "description": "Alternative versions or configurations of the item"
        },
        "@context": {
            "type": [
                "string",
                "object",
                "array"
            ],
            "description": "JSON-LD context reference or inline context object"
        },
        "@id": {
            "type": "string",
            "description": "JSON-LD unique resource identifier URI"
        },
        "@type": {
            "type": [
                "string",
                "array"
            ],
            "description": "JSON-LD semantic resource type"
        }
    },
    "required": [
        "name",
        "type",
        "description"
    ],
    "definitions": {
        "weapon": {
            "type": "object",
            "properties": {
                "category": {
                    "type": "string",
                    "enum": [
                        "melee",
                        "ranged",
                        "thrown",
                        "natural"
                    ]
                },
                "skill": {
                    "type": "string",
                    "description": "Associated weapon skill"
                },
                "damageAs": {
                    "type": "string",
                    "description": "Damage table reference (e.g., 'Sword', 'Bow', 'Large Beast')"
                },
                "range": {
                    "type": "string",
                    "description": "Weapon range"
                },
                "twoHanded": {
                    "type": "boolean",
                    "default": false
                },
                "ignoresArmor": {
                    "type": "integer",
                    "minimum": 0,
                    "default": 0,
                    "description": "Points of armor ignored"
                },
                "ammunition": {
                    "type": "string",
                    "description": "Type of ammunition used"
                },
                "capacity": {
                    "type": "integer",
                    "description": "Ammunition capacity for weapons like fusils"
                },
                "specialRules": {
                    "type": "array",
                    "items": {
                        "type": "string"
                    }
                }
            },
            "required": [
                "category",
                "damageAs"
            ]
        },
        "armor": {
            "type": "object",
            "properties": {
                "protection": {
                    "type": "integer",
                    "minimum": 0,
                    "maximum": 3,
                    "description": "Armor protection value / damage reduction (0=Unarmored, 1=Light, 2=Modest, 3=Heavy)"
                },
                "type": {
                    "type": "string",
                    "description": "Armor classification (e.g. light, modest, heavy, shield, clothing)"
                },
                "coverage": {
                    "type": "array",
                    "items": {
                        "type": "string",
                        "enum": [
                            "head",
                            "torso",
                            "arms",
                            "legs",
                            "full"
                        ]
                    }
                },
                "specialRules": {
                    "type": "array",
                    "items": {
                        "type": "string"
                    }
                }
            },
            "required": [
                "protection"
            ]
        },
        "tool": {
            "type": "object",
            "properties": {
                "skillBonus": {
                    "type": "integer",
                    "description": "Bonus to related skill rolls"
                },
                "applicableSkills": {
                    "type": "array",
                    "items": {
                        "type": "string"
                    },
                    "description": "Skills this tool applies to"
                },
                "setupTime": {
                    "type": "string",
                    "description": "Time required to set up and use"
                },
                "specialRules": {
                    "type": "array",
                    "items": {
                        "type": "string"
                    }
                }
            }
        },
        "provision": {
            "type": "object",
            "properties": {
                "healingValue": {
                    "type": "string",
                    "description": "Healing provided (e.g., '1d6', '20 provisions worth')"
                },
                "specialEffects": {
                    "type": "array",
                    "items": {
                        "type": "string"
                    }
                }
            }
        },
        "container": {
            "type": "object",
            "properties": {
                "capacity": {
                    "type": "integer",
                    "description": "Additional slots provided"
                },
                "restrictions": {
                    "type": "array",
                    "items": {
                        "type": "string"
                    },
                    "description": "What can be stored in this container"
                }
            },
            "required": [
                "capacity"
            ]
        },
        "mount": {
            "type": "object",
            "properties": {
                "carryCapacity": {
                    "type": "integer",
                    "description": "Additional carrying capacity provided"
                },
                "speed": {
                    "type": "string",
                    "description": "Movement speed description"
                },
                "temperament": {
                    "type": "string",
                    "description": "Animal's typical behavior"
                },
                "specialAbilities": {
                    "type": "array",
                    "items": {
                        "type": "string"
                    }
                }
            }
        },
        "bonus": {
            "type": "object",
            "properties": {
                "type": {
                    "type": "string",
                    "enum": [
                        "skill",
                        "attribute",
                        "damage",
                        "armor",
                        "special"
                    ]
                },
                "target": {
                    "type": "string",
                    "description": "What the bonus applies to"
                },
                "value": {
                    "type": "integer",
                    "description": "Bonus amount"
                },
                "condition": {
                    "type": "string",
                    "description": "When the bonus applies"
                },
                "description": {
                    "type": "string"
                }
            },
            "required": [
                "type",
                "target",
                "value"
            ]
        }
    }
}