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49b603f478
* Reindent TimeSeries classes
* Fix spacing in time series tests
* Remove trend tests where current is nil
I think if we've gotten this far with a nil value for current, there's a data integrity problem.
If we allow this, we'll have to be very defensive in our code. Best to raise and fix early.
* Reindent Money class
* Refactor TimeSeries artifacts
* Use as_json in TimeSeries
* Bring back tests for trends where current is nil
* Bring back trend test
* Correctly enumerate trend test
* Use favorable_direction for trend_styles helper
* Make trend public in TimeSeries::Value
* Allow nil current values in trends
I think I might've gotten it wrong before, nils might appear in trends if values are unavailable for snapshots
* Clean up TimeSeries::Trend
* Skip trend values same class validations if any values are nil
* Refactor Money
* Remove object parsing in TimeSeries::Value
We're only every passing hashes
* Refactor trendline chart controller into a time series chart controller
* Replace trendline controller
* Implement empty state
* Port line-chart controller into time-series-chart
* Split out methods
* Group similar time series chart functionality
* Fix indicator color
* Fix empty state in time series chart
* Replace line-chart controller with time-series-chart controller
* Draw empty time series chart if less than 2 data points
* Fix favorable direction serialization
* Handle integers as well as money
* Fix favorable direction serialization
* Replace chart types with optional elements
* Prevent double-renders when displaying turbo caches of time series charts
* Remove ambiguities between time series and series data
* Improve time series chart property names
* Clean up tooltip template
* Match tooltip designs
* Apply trendline gradient
* Implement trendline split behavior
* Use same stroke width on all trend lines
* Sort time series data by date
* Support percentages
* Use data color for guideline circles
* Revert "Use data color for guideline circles"
This reverts commit f239a1e00f.
* Use expected defaults for time series chart
* Include day in time-series chart x-axis labels
* favorableDirection -> favorable_direction
* data -> datum where appropriate
* Hide change data in tooltip for percentages
57 lines
1.2 KiB
Ruby
57 lines
1.2 KiB
Ruby
class TimeSeries
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DIRECTIONS = %w[ up down ].freeze
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attr_reader :values, :favorable_direction
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def self.from_collection(collection, value_method)
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collection.map do |obj|
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{
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date: obj.date,
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value: obj.public_send(value_method),
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original: obj
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}
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end.then { |data| new(data) }
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end
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def initialize(data, favorable_direction: "up")
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@favorable_direction = (favorable_direction.presence_in(DIRECTIONS) || "up").inquiry
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@values = initialize_values data.sort_by { |d| d[:date] }
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end
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def first
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values.first
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end
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def last
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values.last
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end
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def on(date)
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values.find { |v| v.date == date }
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end
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def trend
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TimeSeries::Trend.new \
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current: last&.value,
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previous: first&.value,
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series: self
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end
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# `as_json` returns the data shape used by D3 charts
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def as_json
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{
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values: values.map(&:as_json),
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trend: trend.as_json,
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favorable_direction: favorable_direction
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}.as_json
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end
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private
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def initialize_values(data)
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[ nil, *data ].each_cons(2).map do |previous, current|
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TimeSeries::Value.new **current,
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previous_value: previous.try(:[], :value),
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series: self
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end
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end
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end
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