# MARK: check minimal macOS requirement
autoload is-at-least

installedOSversion=$(sw_vers -productVersion)
if ! is-at-least 10.14 $installedOSversion; then
    printlog "Installomator requires at least macOS 10.14 Mojave." ERROR
    exit 98
fi


# MARK: argument parsing
if [[ $# -eq 0 ]]; then
    if [[ -z $label ]]; then # check if label is set inside script
        printlog "no label provided, printing labels" REQ
        grep -E '^[a-z0-9\_-]*(\)|\|\\)$' "$0" | tr -d ')|\' | grep -v -E '^(broken.*|longversion|version|valuesfromarguments)$' | sort
        #grep -E '^[a-z0-9\_-]*(\)|\|\\)$' "${labelFile}" | tr -d ')|\' | grep -v -E '^(broken.*|longversion|version|valuesfromarguments)$' | sort
        exit 0
    fi
elif [[ $1 == "/" ]]; then
    # jamf uses sends '/' as the first argument
    printlog "shifting arguments for Jamf" REQ
    shift 3
fi

while [[ -n $1 ]]; do
    if [[ $1 =~ ".*\=.*" ]]; then
        # if an argument contains an = character, send it to eval
        printlog "setting variable from argument $1" INFO
        eval $1
    else
        # assume it's a label
        label=$1
    fi
    # shift to next argument
    shift 1
done

# lowercase the label
label=${label:l}

# separate check for 'version' in order to print plain version number without any other information
if [[ $label == "version" ]]; then
    echo "$VERSION"
    exit 0
fi

# MARK: Logging
log_location="/private/var/log/Installomator.log"

# Check if we're in debug mode, if so then set logging to DEBUG, otherwise default to INFO
# if no log level is specified.
if [[ $DEBUG -ne 0 ]]; then
    LOGGING=DEBUG
elif [[ -z $LOGGING ]]; then
    LOGGING=INFO
    datadogLoggingLevel=INFO
fi

# Associate logging levels with a numerical value so that we are able to identify what
# should be removed. For example if the LOGGING=ERROR only printlog statements with the
# level REQ and ERROR will be displayed. LOGGING=DEBUG will show all printlog statements.
# If a printlog statement has no level set it's automatically assigned INFO.

declare -A levels=(DEBUG 0 INFO 1 WARN 2 ERROR 3 REQ 4)

# If we are able to detect an MDM URL (Jamf Pro) or another identifier for a customer/instance we grab it here, this is useful if we're centrally logging multiple MDM instances.
if [[ -f /Library/Preferences/com.jamfsoftware.jamf.plist ]]; then
    mdmURL=$(defaults read /Library/Preferences/com.jamfsoftware.jamf.plist jss_url)
elif [[ -n "$MDMProfileName" ]]; then
    mdmURL=$(sudo profiles show | grep -A3 "$MDMProfileName" | sed -n -e 's/^.*organization: //p')
else
    mdmURL="Unknown"
fi

# Generate a session key for this run, this is useful to idenify streams when we're centrally logging.
SESSION=$RANDOM

# Mark: START
printlog "################## Start Installomator v. $VERSION, date $VERSIONDATE" REQ
printlog "################## Version: $VERSION" INFO
printlog "################## Date: $VERSIONDATE" INFO
printlog "################## $label" INFO

# Check for DEBUG mode
if [[ $DEBUG -gt 0 ]]; then
    printlog "DEBUG mode $DEBUG enabled." DEBUG
fi

# How we get version number from app
if [[ -z $versionKey ]]; then
    versionKey="CFBundleShortVersionString"
fi

# get current user
currentUser=$(scutil <<< "show State:/Users/ConsoleUser" | awk '/Name :/ { print $3 }')

# MARK: check for root
if [[ "$(whoami)" != "root" && "$DEBUG" -eq 0 ]]; then
    # not running as root
    cleanupAndExit 6 "not running as root, exiting" ERROR
fi


# check Swift Dialog presence and version
DIALOG_CMD="/usr/local/bin/dialog"

if [[ ! -x $DIALOG_CMD ]]; then
    # Swift Dialog is not installed, clear cmd file variable to ignore
    printlog "SwiftDialog is not installed, clear cmd file var"
    DIALOG_CMD_FILE=""
fi

# MARK: labels in case statement
case $label in
longversion)
    # print the script version
    printlog "Installomater: version $VERSION ($VERSIONDATE)" REQ
    exit 0
    ;;
valuesfromarguments)
    if [[ -z $name ]]; then
        printlog "need to provide 'name'" ERROR
        exit 1
    fi
    if [[ -z $type ]]; then
        printlog "need to provide 'type'" ERROR
        exit 1
    fi
    if [[ -z $downloadURL ]]; then
        printlog "need to provide 'downloadURL'" ERROR
        exit 1
    fi
    if [[ -z $expectedTeamID ]]; then
        printlog "need to provide 'expectedTeamID'" ERROR
        exit 1
    fi
    ;;

# label descriptions start here