{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "app_name": {
      "type": "string",
      "description": "The name of the application"
    },
    "version": {
      "type": "string",
      "description": "The application version"
    },
    "debug": {
      "type": "boolean",
      "description": "Enable debug mode"
    },
    "environment": {
      "type": "string",
      "enum": ["dev", "staging", "prod"],
      "description": "The deployment environment"
    },
    "database": {
      "type": "object",
      "properties": {
        "host": {
          "type": "string",
          "description": "Database host"
        },
        "port": {
          "type": "integer",
          "minimum": 1,
          "maximum": 65535,
          "description": "Database port"
        },
        "password": {
          "type": "string",
          "description": "Database password (secret)"
        }
      },
      "required": ["host", "port"]
    },
    "api": {
      "type": "object",
      "properties": {
        "host": {
          "type": "string"
        },
        "port": {
          "type": "integer",
          "minimum": 1,
          "maximum": 65535
        },
        "api_key": {
          "type": "string",
          "description": "API key (secret)"
        },
        "timeout": {
          "type": "integer",
          "minimum": 0
        }
      },
      "required": ["host", "port"]
    },
    "features": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "required": ["app_name", "database"]
}