import json
import bumblebee.output

class i3bar(bumblebee.output.Output):
    def __init__(self):
        self._data = []

    def start(self):
        return json.dumps({ "version": 1 }) + "["

    def add(self, obj):
        theme = obj.theme()

        data = {
            "full_text": "%s%s%s" % (theme.prefix(obj), obj.data(), theme.suffix(obj))
        }
        if theme.default_separators(obj) == False:
            data["separator"] = False
            data["separator_block_width"] = 0

        self._data.append(data)

    def get(self):
        data = json.dumps(self._data)
        self._data = []
        return data + ","

    def stop(self):
        return "]"

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