113 lines
2.6 KiB
Ruby
113 lines
2.6 KiB
Ruby
# frozen_string_literal: true
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module Chat
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# = Chat::StepsInspector
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#
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# This class takes a {Chat::Service::Base::Context} object and inspects it.
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# It will output a list of steps and what is their known state.
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class StepsInspector
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# @!visibility private
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class Step
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attr_reader :step, :result, :nesting_level
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delegate :name, to: :step
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delegate :failure?, :success?, :error, to: :step_result, allow_nil: true
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def self.for(step, result, nesting_level: 0)
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class_name =
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"#{module_parent_name}::#{step.class.name.split("::").last.sub(/^(\w+)Step$/, "\\1")}"
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class_name.constantize.new(step, result, nesting_level: nesting_level)
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end
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def initialize(step, result, nesting_level: 0)
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@step = step
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@result = result
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@nesting_level = nesting_level
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end
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def type
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self.class.name.split("::").last.downcase
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end
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def emoji
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return "❌" if failure?
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return "✅" if success?
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""
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end
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def steps
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[self]
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end
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def inspect
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"#{" " * nesting_level}[#{type}] '#{name}' #{emoji}"
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end
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private
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def step_result
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result["result.#{type}.#{name}"]
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end
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end
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# @!visibility private
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class Model < Step
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def error
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step_result.exception.full_message
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end
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end
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# @!visibility private
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class Contract < Step
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def error
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step_result.errors.inspect
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end
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end
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# @!visibility private
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class Policy < Step
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end
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# @!visibility private
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class Transaction < Step
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def steps
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[self, *step.steps.map { Step.for(_1, result, nesting_level: nesting_level + 1).steps }]
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end
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def inspect
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"#{" " * nesting_level}[#{type}]"
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end
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def step_result
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nil
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end
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end
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attr_reader :steps, :result
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def initialize(result)
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@steps = result.__steps__.map { Step.for(_1, result).steps }.flatten
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@result = result
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end
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# Inspect the provided result object.
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# Example output:
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# [1/4] [model] 'channel' ✅
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# [2/4] [contract] 'default' ✅
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# [3/4] [policy] 'check_channel_permission' ❌
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# [4/4] [step] 'change_status'
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# @return [String] the steps of the result object with their state
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def inspect
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steps
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.map
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.with_index { |step, index| "[#{index + 1}/#{steps.size}] #{step.inspect}" }
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.join("\n")
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end
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# @return [String, nil] the first available error, if any.
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def error
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steps.detect(&:failure?)&.error
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end
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end
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end
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