{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "PlaygroupRegistration",
  "description": "Schema for playgroup child registration data",
  "type": "object",
  "required": [
    "child",
    "parentGuardian",
    "emergencyContact",
    "booking",
    "metadata"
  ],
  "properties": {
    "child": {
      "type": "object",
      "required": ["fullName", "dateOfBirth", "specialNeeds"],
      "properties": {
        "fullName": {
          "type": "string",
          "minLength": 2,
          "description": "Child's full name (first and last)"
        },
        "dateOfBirth": {
          "type": "string",
          "format": "date",
          "description": "Child's date of birth (YYYY-MM-DD)"
        },
        "specialNeeds": {
          "type": "string",
          "description": "Special needs, medical conditions, allergies, or 'None'"
        }
      }
    },
    "parentGuardian": {
      "type": "object",
      "required": ["fullName", "streetAddress", "postalCode", "city", "phone", "email"],
      "properties": {
        "fullName": {
          "type": "string",
          "minLength": 2,
          "description": "Parent/guardian full name"
        },
        "streetAddress": {
          "type": "string",
          "description": "Street name and house number"
        },
        "postalCode": {
          "type": "string",
          "pattern": "^[0-9]{4}$",
          "description": "Swiss postal code (4 digits)"
        },
        "city": {
          "type": "string",
          "description": "City/town name"
        },
        "phone": {
          "type": "string",
          "description": "Contact phone number"
        },
        "email": {
          "type": "string",
          "format": "email",
          "description": "Contact email address"
        }
      }
    },
    "emergencyContact": {
      "type": "object",
      "required": ["fullName", "phone"],
      "properties": {
        "fullName": {
          "type": "string",
          "minLength": 2,
          "description": "Emergency contact full name"
        },
        "phone": {
          "type": "string",
          "description": "Emergency contact phone number"
        }
      }
    },
    "booking": {
      "type": "object",
      "required": ["playgroupTypes", "selectedDays"],
      "properties": {
        "playgroupTypes": {
          "type": "array",
          "items": {
            "type": "string",
            "enum": ["indoor", "outdoor"]
          },
          "minItems": 1,
          "description": "Selected playgroup type(s)"
        },
        "selectedDays": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["day", "type"],
            "properties": {
              "day": {
                "type": "string",
                "enum": ["monday", "wednesday", "thursday"]
              },
              "type": {
                "type": "string",
                "enum": ["indoor", "outdoor"]
              }
            }
          },
          "minItems": 1,
          "description": "Selected booking days with playgroup type"
        }
      }
    },
    "metadata": {
      "type": "object",
      "required": ["submittedAt", "channel"],
      "properties": {
        "submittedAt": {
          "type": "string",
          "format": "date-time",
          "description": "Registration submission timestamp"
        },
        "channel": {
          "type": "string",
          "enum": ["email", "chat"],
          "description": "Channel through which registration was completed"
        },
        "conversationId": {
          "type": "string",
          "description": "Unique identifier for the registration conversation"
        }
      }
    }
  }
}