"""
Display output for minions that did not return
==============================================

This outputter is used to display notices about which minions failed to return
when a salt function is run with ``-v`` or ``--verbose``. It should not be
called directly from the CLI.

Example output::

    virtucentos:
        Minion did not return
"""

import salt.utils.color


class NestDisplay:
    """
    Create generator for nested output
    """

    def __init__(self):
        self.colors = salt.utils.color.get_colors(
            __opts__.get("color"), __opts__.get("color_theme")
        )

    def display(self, ret, indent, prefix, out):
        """
        Recursively iterate down through data structures to determine output
        """
        if isinstance(ret, str):
            lines = ret.split("\n")
            for line in lines:
                out += "{}{}{}{}{}\n".format(
                    self.colors["RED"], " " * indent, prefix, line, self.colors["ENDC"]
                )
        elif isinstance(ret, dict):
            for key in sorted(ret):
                val = ret[key]
                out += "{}{}{}{}{}:\n".format(
                    self.colors["CYAN"], " " * indent, prefix, key, self.colors["ENDC"]
                )
                out = self.display(val, indent + 4, "", out)
        return out


def output(ret, **kwargs):  # pylint: disable=unused-argument
    """
    Display ret data
    """
    nest = NestDisplay()
    return nest.display(ret, 0, "", "")