"""
Display profiling data in a table format
========================================

Show profile data for returners that would normally show a highstate output.

CLI Example:

.. code-block:: bash

    salt '*' state.apply something --out=profile

Attempt to output the returns of state.sls and state.highstate as a table of
names, modules and durations that looks somewhat like the following::

    name                mod.fun                duration (ms)
    --------------------------------------------------------
    I-fail-unless-stmt  other.function               -1.0000
    old-minion-config   grains.list_present           1.1200
    salt-data           group.present                48.3800
    /etc/salt/minion    file.managed                 63.1450


To get the above appearance, use settings something like these::

    out.table.separate_rows: False
    out.table.justify: left
    out.table.delim: '  '
    out.table.prefix: ''
    out.table.suffix: ''
"""

import salt.output.table_out as table_out

__virtualname__ = "profile"


def __virtual__():
    return True


def _find_durations(data, name_max=60):
    ret = []
    ml = len("duration (ms)")
    for host in data:
        for sid in data[host]:
            dat = data[host][sid]
            ts = sid.split("_|-")
            mod = ts[0]
            fun = ts[-1]
            name = dat.get("name", dat.get("__id__"))
            dur = float(data[host][sid].get("duration", -1))

            if name is None:
                name = "<>"
            if len(name) > name_max:
                name = name[0 : name_max - 3] + "..."

            l = len("{:0.4f}".format(dur))
            if l > ml:
                ml = l

            ret.append([dur, name, "{}.{}".format(mod, fun)])

    for row in ret:
        row[0] = "{0:{w}.4f}".format(row[0], w=ml)
    return [x[1:] + x[0:1] for x in sorted(ret)]


def output(data, **kwargs):
    """
    Display the profiling data in a table format.
    """

    rows = _find_durations(data)

    kwargs["opts"] = __opts__
    kwargs["rows_key"] = "rows"
    kwargs["labels_key"] = "labels"

    to_show = {"labels": ["name", "mod.fun", "duration (ms)"], "rows": rows}

    return table_out.output(to_show, **kwargs)
