JSONSkooma

require "json_skooma"

# Create a registry to store schemas, vocabularies, dialects, etc.
JSONSkooma.create_registry("2020-12", assert_formats: true)

# Load a schema
schema_hash = {
  "$schema" => "https://json-schema.org/draft/2020-12/schema",
  "type" => "object",
  "properties" => {
    "name" => {"type" => "string"},
    "race" => {"enum" => %w[Nord Khajiit Argonian Breton Redguard Dunmer Altmer Bosmer Orc Imperial]},
    "class" => {"type" => "string"},
    "level" => {"type" => "integer", "minimum" => 1},
    "equipment" => {
      "type" => "array",
      "items" => {"type" => "string"}
    }
  },
  "required" => %w[name race class level]
}

schema = JSONSkooma::JSONSchema.new(schema_hash)

data_hash = {
  name: "Matz",
  race: "Human",
  class: "Dragonborn",
  level: 50,
  equipment: %w[Ruby],
}

result = schema.evaluate(data_hash)

result.valid? # => false

result.output(:basic)
# {"valid"=>false,
#  "errors"=>
#    [{"instanceLocation"=>"",
#      "keywordLocation"=>"/properties",
#      "absoluteKeywordLocation"=>"urn:uuid:f477b6ca-7308-4be6-b88c-e848b9002793#/properties",
#      "error"=>"Properties [\"race\"] are invalid"},
#     {"instanceLocation"=>"/race",
#      "keywordLocation"=>"/properties/race/enum",
#      "absoluteKeywordLocation"=>"urn:uuid:f477b6ca-7308-4be6-b88c-e848b9002793#/properties/race/enum",
#      "error"=>
#        "The instance value \"Human\" must be equal to one of the elements in the defined enumeration: [\"Nord\", \"Khajiit\", \"Argonian\", \"Breton\", \"Redguard\", \"Dunmer\", \"Altmer\", \"Bosmer\", \"Orc\", \"Imperial\"]"}]}