60 lines
1.2 KiB
CoffeeScript
60 lines
1.2 KiB
CoffeeScript
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class Engine
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constructor: (@HB, @parser)->
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@unprocessed_ops = []
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parseOperation: (json)->
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typeParser = @parser[json.type]
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if typeParser?
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typeParser json
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else
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throw new Error "You forgot to specify a parser for type #{json.type}. The message is #{JSON.stringify json}."
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# TODO:
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applyOps: (ops_json)->
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ops = []
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for o in ops_json
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ops.push @parseOperation o
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for o in ops
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@HB.addOperation o
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for o in ops
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if not o.execute()
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@unprocessed_ops.push o
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@cleanUp()
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cleanUp: ()->
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while true
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old_length = @unprocessed_ops.length
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unprocessed = []
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for op in @unprocessed_ops
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if not op.execute()
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unprocessed.push op
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@unprocessed_ops = unprocessed
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if @unprocessed_ops.length is old_length
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break
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applyOp: (op_json)->
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# $parse_and_execute will return false if $o_json was parsed and executed, otherwise the parsed operadion
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o = @parseOperation op_json
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@HB.addOperation o
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if not o.execute()
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@unprocessed_ops.push o
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@cleanUp()
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module.exports = Engine
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