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"""
System capabilities module
"""

import common
import log
import sstbf
import power


# System capabilities are detected during the runtime
SYSTEM_CAPS = {}


def caps_init():
    """
    Runs supported capabilities detection and logs to console
    """
    global SYSTEM_CAPS

    if SYSTEM_CAPS:
        SYSTEM_CAPS.clear()

    SYSTEM_CAPS = detect_supported_caps()
    log.info("Supported capabilities:")
    log.info(SYSTEM_CAPS)

    if (cat_supported() or mba_supported() or sstbf_enabled() or sstcp_enabled())\
            and common.PQOS_API.is_multicore():
        return 0

    return -1


def cat_supported():
    """
    Returns CAT support status
    """
    return common.CAT_CAP in SYSTEM_CAPS


def mba_supported():
    """
    Returns MBA support status
    """
    return common.MBA_CAP in SYSTEM_CAPS


def sstbf_enabled():
    """
    Returns SST-BF support status
    """
    return common.SSTBF_CAP in SYSTEM_CAPS


def sstcp_enabled():
    """
    Returns SST-CP support status
    """
    return common.POWER_CAP in SYSTEM_CAPS


def detect_supported_caps():
    """
    Generates list of supported caps

    Returns
        list of supported caps
    """
    result = []
    # generate list of supported capabilities

    # Intel RDT L3 CAT
    if common.PQOS_API.is_l3_cat_supported():
        result.append(common.CAT_CAP)

    # Intel RDT MBA
    if common.PQOS_API.is_mba_supported():
        result.append(common.MBA_CAP)

    if sstbf.is_sstbf_enabled():
        result.append(common.SSTBF_CAP)

    if power.is_sstcp_enabled():
        result.append(common.POWER_CAP)

    return result