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Leverage Open Api Specification 3 (swagger) to document, test, validate and explore your Plug and Phoenix APIs.
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lib/open_api_spex/cast/integer.ex
defmodule OpenApiSpex.Cast.Integer do
@moduledoc false
alias OpenApiSpex.Cast
@min_int32 -2_147_483_647
@max_int32 2_147_483_647
@min_int64 -9_223_372_036_854_775_807
@max_int64 9_223_372_036_854_775_807
def cast(%{value: value} = ctx) when is_integer(value) do
case cast_integer(ctx) do
{:cast, ctx} -> cast(ctx)
result -> result
end
end
def cast(%{value: value} = ctx) when is_binary(value) do
case Integer.parse(value) do
{value, ""} -> cast(%{ctx | value: value})
_ -> Cast.error(ctx, {:invalid_type, :integer})
end
end
def cast(ctx) do
Cast.error(ctx, {:invalid_type, :integer})
end
## Private functions
defp cast_integer(%{value: value, schema: %{format: :int32}} = ctx)
when value < @min_int32 or value > @max_int32 do
Cast.error(ctx, {:invalid_format, :int32})
end
defp cast_integer(%{value: value, schema: %{format: :int64}} = ctx)
when value < @min_int64 or value > @max_int64 do
Cast.error(ctx, {:invalid_format, :int64})
end
defp cast_integer(%{value: value, schema: %{minimum: minimum, exclusiveMinimum: true}} = ctx)
when is_integer(value) and is_integer(minimum) do
if value > minimum do
Cast.success(ctx, [:minimum, :exclusiveMinimum])
else
Cast.error(ctx, {:exclusive_min, minimum, value})
end
end
defp cast_integer(%{value: value, schema: %{minimum: minimum}} = ctx)
when is_integer(value) and is_integer(minimum) do
if value >= minimum do
Cast.success(ctx, :minimum)
else
Cast.error(ctx, {:minimum, minimum, value})
end
end
defp cast_integer(%{value: value, schema: %{maximum: maximum, exclusiveMaximum: true}} = ctx)
when is_integer(value) and is_integer(maximum) do
if value < maximum do
Cast.success(ctx, [:maximum, :exclusiveMaximum])
else
Cast.error(ctx, {:exclusive_max, maximum, value})
end
end
defp cast_integer(%{value: value, schema: %{maximum: maximum}} = ctx)
when is_integer(value) and is_integer(maximum) do
if value <= maximum do
Cast.success(ctx, :maximum)
else
Cast.error(ctx, {:maximum, maximum, value})
end
end
defp cast_integer(%{value: value, schema: %{multipleOf: multiple}} = ctx)
when is_integer(value) and is_integer(multiple) do
if Integer.mod(value, multiple) > 0 do
Cast.error(ctx, {:multiple_of, multiple, value})
else
Cast.success(ctx, :multipleOf)
end
end
defp cast_integer(ctx), do: Cast.ok(ctx)
end