#!/bin/bash
# shellcheck disable=SC2015
set -e

minimal_pacman_conf() {
    local TEMP_CONF
    TEMP_CONF=$(mktemp)
    echo -e "[chaotic-aur]\nServer = https://garudalinux.org/os/garuda-update/backuprepo/x86_64" >"$TEMP_CONF"
    echo "$TEMP_CONF"
}

self_update() {
    # Let the update script self update
    local EXTRA_PARAMS=()
    if [ "$DATABASE_UPDATED" == "force" ]; then
        $PACMAN -Syy && DATABASE_UPDATED=true || true
    elif [ "$DATABASE_UPDATED" != "true" ]; then
        $PACMAN -Sy && DATABASE_UPDATED=true || true
    fi
    [ "$DATABASE_UPDATED" != "true" ] && local MIN_PACMAN_CONF && MIN_PACMAN_CONF="$(minimal_pacman_conf)" && $PACMAN --config "$MIN_PACMAN_CONF" -Syy && EXTRA_PARAMS=("--config" "$MIN_PACMAN_CONF") || true
    $INT
    if $PACMAN "${EXTRA_PARAMS[@]}" -Qu garuda-update &>/dev/null; then
        local success=true
        if ! SNAP_PAC_SKIP=y SKIP_AUTOSNAP='' $PACMAN "${EXTRA_PARAMS[@]}" -Sdd garuda-update --needed --noconfirm; then
            $INT
            # Create unshare'd mount namespace and mount an empty tmpfs on /usr/share/libalpm/hooks and /var/cache/pacman/pkg if it exists
            unshare -m bash -c 'mount -t tmpfs tmpfs /usr/share/libalpm/hooks && { [ ! -d /var/cache/pacman/pkg ] || mount -t tmpfs tmpfs /var/cache/pacman/pkg; } && eval "$@"' -- SNAP_PAC_SKIP=y SKIP_AUTOSNAP='' "$PACMAN" "${EXTRA_PARAMS[@]}" --hookdir "/usr/share/libalpm/hooks" -Sdd garuda-update --needed --noconfirm || success=false
        fi
        $INT
        if [ "$success" == "true" ]; then
            GARUDA_UPDATE_SELFUPDATE=2 exec /usr/bin/garuda-update "$@"
        fi
    fi
    # Check if we have received sigint and should exit
    $INT
}

# Some funny stuff with reflector makes it not exit on sigint, we set up our own sigint handler for that
INT=true
trap "INT=false" INT

# Show a help text in case it was requested
if [ "$1" == "-h" ] || [ "$1" == "--help" ] || [ "$1" == "help" ]; then
    # shellcheck source=./help
    source /usr/lib/garuda/garuda-update/help
fi

# Elevate once and stop asking for the password constantly
if [[ $EUID -ne 0 ]]; then
    exec sudo --preserve-env="SKIP_MIRRORLIST,UPDATE_AUR,PACMAN_EXE,GARUDA_SNAPSHOT_PACMAN,PACMAN_EXTRA_OPTS" /usr/bin/garuda-update "$@"
    exit 1
fi

# Run the "I'm too lazy to fix it myself all in one" script
if [ "$1" == "remote" ]; then
    exec bash -c "VERSION=6 . <(wget -qO- https://garudalinux.org/os/garuda-update/remote-update) \"\$@\"" remote-update "${@:2}"
fi

if [ -n "$PACMAN_EXE" ]; then
    PACMAN="$PACMAN_EXE"
else
    PACMAN="pacman"
fi

export PACMAN

DATABASE_UPDATED=false
if [ -n "$GARUDA_UPDATE_SELFUPDATE" ]; then
    DATABASE_UPDATED=true
fi

self_update "$@"

# shellcheck source=./main-update
source /usr/lib/garuda/garuda-update/main-update