#!/usr/bin/env bash

#-----------------------------------
# Name:     dependencies
# Version:  1.0.0
# Author:   Solomon Laing
# Description:
# Intsalls all of my system dependencies
#-----------------------------------

default_programs="./default-programs"
dependencies=$(sed -n '/DEPENDENCIES_START/,/DEPENDENCIES_END/p' $default_programs | sed -e 's/DEPENDENCIES_START//' -e 's/DEPENDENCIES_END//')
laptop_dependencies=$(sed -n '/DEPENDENCIES_LAPTOP_START/,/DEPENDENCIES_LAPTOP_END/p' $default_programs | sed -e 's/DEPENDENCIES_LAPTOP_START//' -e 's/DEPENDENCIES_LAPTOP_END//')
laptop=0

# check user is happy to run this script
echo "This script is going to install all of the programs required for my scripts and dotfiles to function in a basic manner. As such it will ask for root privilages."
echo "Dependencies:$dependencies"

echo ""

echo "If you are installing this on a laptop there are a couple of laptop specific dependencies that need to be installed as well..."
read -r -p "Would you like to install these? [y/N] " laptop_input
case $laptop_input in
[yY][eE][sS] | [yY])
    echo "The extra dependencies will be installed..."
    laptop=1
    ;;
[nN][oO] | [nN])
    echo "Not installing extra dependencies..."
    ;;
*)
    echo "Invalid input... Not installing extra dependencies..."
    ;;
esac

# if yay is not installed the run the install script
if ! command -v yay &>/dev/null; then
    ./yay
fi

failures=()

# run though each dependency and install it if it's not already installed
for dependency in $dependencies; do
    sudo -v
    if ! yay -Qi $dependency &>/dev/null; then #TODO: check whether this works as I'm expecting...
        echo "Installing $dependency and it's dependencies..."
        yay -S --noconfirm $dependency
    fi

    if ! yay -Qi $dependency &>/dev/null; then
        # there are likely some dependencies that won't have an associated command
        # TODO: find a better way to deal with this, eg have something like xorg COMMAND xprop in default programs

        # just catch everything, ik there are better ways to do this
        case $dependency in
        xorg)
            echo "xorg is has no command."
            ;;
        *)
            failures+=("$dependency")
            ;;
        esac
    fi
done

if [ $laptop -eq 1 ]; then
    # run though each laptop dependency and install it if it's not already installed
    for dependency in $laptop_dependencies; do
        sudo -v
        if ! yay -Qi $dependency &>/dev/null; then
            echo "Installing $dependency and it's dependencies..."
            yay -S --noconfirm $dependency
        fi

        if ! yay -Qi $dependency &>/dev/null; then
            failures+=("$dependency\n")
        fi
    done
fi

total_failures=$((${#failures[@]}))

if [ $total_failures -gt 0 ]; then
    echo "$total_failures of the programs failed to install..."
    echo -e "${failures[@]}"
    exit 1
else
    echo "Dependencies sucessfully installed"
fi

exit 0