#!/usr/bin/env bash
set -eo pipefail

# --------------------------------------------------------------------
# Script to run all install scripts contained in install.d
#

printf "\n\t <<< dots installer >>>\n"
printf "\t========================\n\n\n"

# Prevent running as root
if [[ $EUID -eq 0 && -z "$SKIP_SUDO_CHECK" ]]; then
    echo "Failed: Running as sudo. Please run as user"
    exit 1
fi

# Ensure sudo credentials are cached
if [[ -z "$SKIP_SUDO_CHECK" ]]; then
    sudo -v
fi

# Set up directory variables
if [ -L "$0" ]; then
    dir=$(dirname $(readlink -f "$0"))
else
    dir=$(dirname "$0")
fi
install_dir="$dir/install.d"
export DOTFILES=$(dirname "$dir")

# Set up log destination
if [[ -z "$LOG_TARGET" ]]; then
    timestamp=$(date +%Y-%m-%dT%H:%M:%S)
    uuid=$(
        uuidgen 2> /dev/null \
        || cat /proc/sys/kernel/random/uuid 2> /dev/null \
        || echo $RANDOM
    )
    log_dir="$dir/logs"
    mkdir -p "$log_dir"
    log_target=${LOG_TARGET:-"$log_dir/$uuid.log"}
else
    log_target="$LOG_TARGET"
fi
touch "$log_target"
if [[ ! -f "$log_target" ]]; then
    echo "Failed: Unable to create log file \"$log_target\""
    exit 1
fi
log_abs_target=$(readlink -f "$log_target")

# Run install scripts
install() {
    echo "Running \"$(basename "$0")\" at \"$(date)\""
    echo "Running as \"$(whoami)\" on \"$(hostname)\""

    for script in $install_dir/*.sh; do
        script_name=$(basename $script)
        printf "\n\n<<< $script_name:\n"
        source $script
        printf "\n>>> $script_name\n"
        unset script_name
    done
}
echo "install: Logging to \"$log_abs_target\""
install 2>&1 | tee "$log_abs_target"

# Clean up
unset uuid dir install_dir log_dir log_abs_target log_target
echo "Thank you!"