#!/bin/bash

#
# Mount ESP script for Clover
#
# © JrCs 2013

#
# Mount ESP (EFI System Partition)
#
# NVRam keys used:
#    Clover.MountEFI: Yes|diskX|GUID|VolName [default No]

# Check that all variable are bound
set -u

#
# Source clover rc library if needed
#
if [[ ! "$(type -t GetNVRamKey)" == "function" ]]; then
    selfDir=$(cd $(dirname "$0") && pwd -P)
    source "${selfDir}"/../rc.clover.lib
fi

# Variables
ESPMountPoint=/Volumes/ESP
declare -r plistbuddy='/usr/libexec/PlistBuddy'

# Debug mode ?
[[ "$DEBUG" -ne 0 ]] && set -x

# Turn on a case-insensitive matching
shopt -s nocasematch

function mountESP {
    local arg="$1"
    local exitcode=1
    local guidRegExp='[[:xdigit:]]+-[[:xdigit:]]+-[[:xdigit:]]+-[[:xdigit:]]+'
    local ESPDevice=

    if [[ "$arg" == Yes ]]; then
        ESPDevice=$(LC_ALL=C diskutil info / 2>/dev/null | \
         sed -n 's/.*PV UUID (disk): .*(//p' | \
         sed -n 's/s[0-9])//p')

        if [[ "$ESPDevice" == "" ]]; then
            ESPDevice=$(LC_ALL=C diskutil info / 2>/dev/null | \
             sed -n 's/.*Part [Oo]f Whole: *//p')
        fi
		# When ${ESPDevice} is an "Apple_APFS Container" on expected "Boot Volume" (ie. "Volume de démarrage")
        # at "Force mount selected ESP at startup:"(ie. "Forcer le montage de l'ESP sélectionné au démarrage")
        if [[ $(diskutil info / | sed -n 's/.*File System Personality: *//p' | tr "[:upper:]" "[:lower:]") = "apfs" ]] ; then
            ESPDevice=$(diskutil list | grep "Apple_APFS Container ${ESPDevice}" | \
             awk '{ print $NF}' | sed -E 's@^.*/?(disk[0-9]*).*@\1@')
        fi
    elif [[ "$arg" =~ $guidRegExp ]]; then
        ESPDevice=$(LC_ALL=C diskutil info "$arg" 2>/dev/null | \
         sed -n 's/.*Part [Oo]f Whole: *//p')
        if [[ -z "$ESPDevice" ]]; then
            echo "Can't find partition with UUID $arg"
            return 1
        fi
    elif [[ ! "$arg" =~ ^(/dev/)?disk[0-9]+ ]]; then
        ESPDevice=$(LC_ALL=C diskutil info "$arg" 2>/dev/null | \
         sed -n 's/.*Part [Oo]f Whole: *//p')
        if [[ -z "$ESPDevice" ]]; then
            echo "Can't find volume with the name $arg"
            return 1
        fi
    else
        ESPDevice="$arg"
    fi

    # keep only the device name (remove /dev/ and partition (aka s1))
    ESPDevice=$(echo "$ESPDevice" | sed -E 's@^.*/?(disk[0-9]*).*@\1@')

    if [[ "$ESPDevice" =~ ^disk[0-9]+$ ]]; then
        local ESP="${ESPDevice}s1"

        # Umount previously mount partition
        /usr/sbin/diskutil umount "${ESPMountPoint}" &>/dev/null
        umount /dev/${ESP} &>/dev/null
        exitcode=1

        local tmpfile=$(mktemp -t fstyp)
        LC_ALL=C diskutil info -plist /dev/$ESP > "$tmpfile"
        local fstype=$($plistbuddy -c "Print FilesystemType" \
         "$tmpfile" 2>/dev/null)
        rm -f "$tmpfile"
        [[ -z "$fstype" ]] && fstype=$(/sbin/fstyp /dev/$ESP)
        if [[ -n "$fstype" ]]; then
            [[ ! -d "${ESPMountPoint}" ]] && mkdir -p "${ESPMountPoint}"
            mount -t "$fstype" /dev/$ESP "${ESPMountPoint}" &>/dev/null
            exitcode=$?
        fi
        if [[ $exitcode -ne 0 ]]; then
            echo "Failed to mount $ESP at $ESPMountPoint"
        else
            echo "EFI partition ($ESP) mount at $ESPMountPoint"
        fi
    else
        echo "Invalid device '$ESPDevice'"
    fi
    return $exitcode
}

# Clover.MountEFI=Yes|diskX|GUID|VolName [default No]
mountEFIValue=$(GetNVRamKey 'Clover.MountEFI' || echo 'No')
if [[ "$mountEFIValue" == "No" ]]; then
    echo "Not auto mounting EFI partition"
else
    mountESP "$mountEFIValue"
    [[ $? -ne 0 ]] && rmdir "$ESPMountPoint" &>/dev/null
fi

#
# 2017 (c) syscl/lighting/Yating Zhou, tluck, Sherlocks
#
gScriptVersion=1.16.2
gEmuVariableName=emuvariable
gLogoutHookf="/Library/Application Support/Clover/CloverDaemon-stopservice"
gNVRAMbuf=$(nvram -x -p)

gEfiEmuVariableIsPresent="false"
gLegacyEmuVariableIsPresent="false"
if [[ `printf "${gNVRAMbuf}" |tr '[:upper:]' '[:lower:]'` == *"${gEmuVariableName}"* ]];
then
    gEfiEmuVariableIsPresent="true"
else
    gEFIFirmwareVendor=$(LC_ALL=C ioreg -l -pIODeviceTree | sed -nE 's@.*firmware-vendor.*<([0-9a-fA-F]*)>.*@\1@p' | xxd -r -p | tr '[:upper:]' '[:lower:]')
    case "${gEFIFirmwareVendor}" in
        *"clover"* | *"edk ii"* ) gLegacyEmuVariableIsPresent="true"
                                  ;;
        *                       )
                                  ;;
    esac
fi

# set LogoutHook
if [[ "${gLegacyEmuVariableIsPresent}" == "true" || "${gEfiEmuVariableIsPresent}" == "true" ]]; 
then
    if [ -f "${gLogoutHookf}" ]; 
    then
    #
    # file exist, need to logoutHook
    #
        echo "v${gScriptVersion} (c) 2017 syscl/lighting/Yating Zhou, tluck, Sherlocks"
        echo "Registering LogoutHook as ${gLogoutHookf}"
        defaults write com.apple.loginwindow LogoutHook "${gLogoutHookf}"
    fi
fi

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