import json


class CheckReporter:
    def __init__(self, output_passes):
        self.checks = list()
        self.output_passes = output_passes

    def append(self, check):
        self.checks.append(check)

    def failed(self):
        return list(r for r in self.checks if not r.check_successful)

    def num_failed(self):
        return len(self.failed())

    def report(self):
        ...


class JSONReporter(CheckReporter):
    def __make_check_serialisable(check):
        """
        Converts a CertCheckResult for json serialisation
        :param check: CertCheckResult as output by checks
        :return: check as dict() with appropriate type conversions for json.dumps
        """
        ret = check._asdict()
        if check.expiration_date:
            ret["expiration_date"] = check.expiration_date.strftime("%c %Z")
        return ret

    def report(self):
        return json.dumps(
            list(
                map(
                    lambda check: JSONReporter.__make_check_serialisable(check),
                    self.checks if self.output_passes else self.failed(),
                )
            ),
            indent=4,
        )


class DefaultReporter(CheckReporter):
    def append(self, check):
        super().append(check)
        if check.check_successful and not self.output_passes:
            return
        result = f"[{'PASS' if check.check_successful else 'FAIL'}] Check host {check.hostname}"
        if check.debug:
            result += f" - {check.debug}"
        if check.expiration_date:
            result += f" - Certificate expires on {check.expiration_date} {check.expiration_date.tzname()}"
        print(result)