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44 lines
985 B
CoffeeScript
44 lines
985 B
CoffeeScript
BottleneckError = require "./BottleneckError"
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class States
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constructor: (@status) ->
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@_jobs = {}
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@counts = @status.map(-> 0)
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next: (id) ->
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current = @_jobs[id]
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next = current + 1
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if current? and next < @status.length
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@counts[current]--
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@counts[next]++
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@_jobs[id]++
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else if current?
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@counts[current]--
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delete @_jobs[id]
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start: (id) ->
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initial = 0
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@_jobs[id] = initial
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@counts[initial]++
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remove: (id) ->
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current = @_jobs[id]
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if current?
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@counts[current]--
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delete @_jobs[id]
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current?
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jobStatus: (id) -> @status[@_jobs[id]] ? null
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statusJobs: (status) ->
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if status?
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pos = @status.indexOf status
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if pos < 0
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throw new BottleneckError "status must be one of #{@status.join ', '}"
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k for k,v of @_jobs when v == pos
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else
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Object.keys @_jobs
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statusCounts: -> @counts.reduce(((acc, v, i) => acc[@status[i]] = v; acc), {})
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module.exports = States
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