#!/usr/bin/env python3

# MIT License
#
# Copyright (c) 2023 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

class testWrite():
    def __init__(self) -> None:
        self.loopGenerator = self._loop()

    def _loop(self):
        while True:
            var = yield
            print(f"Loop1: {var=}")
            yield
            print(f"Done {var=}")
            if not var: return

            if var == 123:
                # Test entering a second loop
                while True:
                    var = yield
                    yield
                    print(f" * Loop2: {var=}")
                    if not var: return
                    if var == 123: break

    def write(self, data):
        print(f"Writing {data=}")
        try:
            n = next(self.loopGenerator)
            print(f"{n=}")
            self.loopGenerator.send(data)
        except StopIteration as si:
            print(f"{si=}")
        except Exception as e:
            print(f"{e=}")


tw = testWrite()
tw.write(123)
tw.write(345)
tw.write(567)
tw.write(123)
tw.write(45)
tw.write(67)
tw.write(89)
tw.write(None)
tw.write(890)