{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://cardgame.local/schemas/card.json",
  "title": "Card",
  "type": "object",
  "required": ["id", "name", "type", "cost", "effects"],
  "properties": {
    "id": { "type": "string", "minLength": 1 },
    "name": { "type": "string", "minLength": 1 },
    "type": { "enum": ["Creature", "Spell", "Field"] },
    "cost": { "type": "integer", "minimum": 0 },
    "tags": {
      "type": "array",
      "items": { "type": "string", "pattern": "^[a-z0-9]+(-[a-z0-9]+)*$" }
    },
    "attack": { "type": "integer" },
    "health": { "type": "integer" },
    "countdown": { "type": "integer", "minimum": 0 },
    "effects": {
      "type": "array",
      "items": { "$ref": "#/$defs/effect" }
    },
    "triggers": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["when", "effects"],
        "properties": {
          "when": { "enum": ["TurnStart", "OnDestroyed"] },
          "effects": {
            "type": "array",
            "items": { "$ref": "#/$defs/effect" }
          }
        }
      }
    }
  },
  "$defs": {
    "effect": {
      "type": "object",
      "required": ["op"],
      "properties": {
        "op": { "type": "string" },
        "amount": { "type": "integer" },
        "target": { "type": "string" },
        "customEffect": { "type": "string" }
      }
    }
  }
}