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

# --------------------------------------------------------------------
# Script that installs system dependencies specified in a config,
# and runs all post-install scripts contained in a subdirectory.
#

uuid=${UUID:-$(cat /proc/sys/kernel/random/uuid)}
dir=$(dirname "$0")
utils="${dir}/_utils.sh"
config="${dir}/install_config.json"
install_dir="${dir}/install.d"
log_dir="${dir}/logs"

# Create log directory if it doesn't exist
# and the log path hasn't been overridden
if [[ -z "$LOG_TARGET" ]]; then
    mkdir -p "$log_dir"
fi
log_target=${LOG_TARGET:-"${log_dir}/${uuid}.log"}

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

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

    # Load installer dependencies
    source "$utils"
    update
    install jq
    for dep in $(jq -r ".apt_core_dependencies[]" "$config"); do
        install "$dep"
    done

    # Add apt repositories
    for i in $(jq ".apt_repositories | keys | .[]" "$config"); do
        value=$(jq -r ".apt_repositories[$i]" "$config")
        add_repository "$value"
    done
    update

    # Install apt dependencies
    for dep in $(jq -r ".apt_dependencies[]" "$config"); do
        install "$dep"
    done

    # Install dotfiles on system and load them
    figlet -c "Stowing..."
    for i in $(jq ".stow_packages | keys | .[]" "$config"); do
        value=$(jq -r ".stow_packages[$i]" "$config")
        stow_package "$value"
    done
    source "$HOME/.profile"

    # Run custom installer scripts
    figlet -c "Installing..."
    for script in $install_dir/*.sh; do
        figlet -c "$(basename $script)"
        source $script
    done
}

echo "install: Logging to \"$log_target\""
install 2>&1 | tee "$log_target"