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integer.ex
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integer.ex
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defmodule OpenApiSpex.Cast.Integer do
@moduledoc false
alias OpenApiSpex.Cast
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_number(value) do
cast(%{ctx | value: round(value)})
end
def cast(%{value: value} = ctx) when is_binary(value) do
case Float.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: %{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

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