# Copyright (C) 2012 Google Inc. All rights reserved.
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from webkitpy.common.unicode_compatibility import encode_if_necessary


class MockServerProcess(object):
    def __init__(self, port_obj=None, name=None, cmd=None, env=None, universal_newlines=False, lines=None, crashed=False, target_host=None, crash_message=None):
        self.timed_out = False
        self.lines = [encode_if_necessary(line) for line in (lines or [])]
        self.crashed = crashed
        self.writes = []
        self.cmd = cmd
        self.env = env
        self.started = False
        self.stopped = False
        self.number_of_times_polled = 0

    def poll(self):
        self.number_of_times_polled += 1

    def write(self, bytes):
        self.writes.append(bytes)

    def has_crashed(self):
        self.poll()
        return self.crashed

    def read_stdout_line(self, deadline):
        if self.has_crashed():
            return None
        return self.lines.pop(0) + b'\n'

    def has_available_stdout(self):
        if self.has_crashed():
            return False
        return bool(self.lines)

    def read_stdout(self, deadline, size):
        if self.has_crashed():
            return None
        first_line = self.lines[0]
        if size > len(first_line):
            self.lines.pop(0)
            remaining_size = size - len(first_line) - 1
            if not remaining_size:
                return first_line + b'\n'
            return first_line + b'\n' + self.read_stdout(deadline, remaining_size)
        result = self.lines[0][:size]
        self.lines[0] = self.lines[0][size:]
        return result

    def pop_all_buffered_stderr(self):
        return ''

    def read_either_stdout_or_stderr_line(self, deadline):
        # FIXME: We should have tests which intermix stderr and stdout lines.
        return self.read_stdout_line(deadline), None

    def start(self):
        self.started = True

    def stop(self, kill_directly=False):
        self.stopped = True
        return

    def kill(self):
        return