import re


def facts_personality(junos, facts):
    model = facts["model"]

    if model != "Virtual Chassis":
        examine = model
    else:
        for fact in facts:
            if re.match(r"^RE\d", fact):
                examine = facts[fact]["model"]
                break

    examine = examine.upper()

    if re.match("^(EX)|(QFX)", examine):
        persona = "SWITCH"
    elif examine.startswith("MX"):
        persona = "MX"
    elif examine.startswith("VMX"):
        facts["virtual"] = True
        persona = "MX"
    elif examine.startswith("VJX"):
        facts["virtual"] = True
        persona = "SRX_BRANCH"
    elif "VRR" == examine:
        persona = "MX"
        facts["virtual"] = True
    elif examine.startswith("M"):
        persona = "M"
    elif examine.startswith("T"):
        persona = "T"
    elif examine.startswith("PTX"):
        persona = "PTX"
    elif re.match(r"SRX\s?(\d){4}", examine):
        persona = "SRX_HIGHEND"
    elif re.match(r"SRX\s?(\d){3}", examine):
        persona = "SRX_BRANCH"
    elif re.search("firefly", examine, re.IGNORECASE):
        facts["virtual"] = True
        persona = "SRX_BRANCH"
    elif "OLIVE" == examine:
        facts["virtual"] = True
        persona = "OLIVE"
    else:
        persona = "UNKNOWN"

    facts["personality"] = persona