#!/usr/bin/env bash
clean=false
fetch=false
minimal=false
noconfirm=false
pull=false
update=false
verbose=false

for arg in "$@"; do
    if [[ $arg == "-c" ]] || [[ $arg == "--clean" ]]; then
        clean=true
    elif [[ $arg == "-f" ]] || [[ $arg == "--fetch" ]]; then
        fetch=true
    elif [[ $arg == "-m" ]] || [[ $arg == "--minimal" ]]; then
        minimal=true
    elif [[ $arg == "--noconfirm" ]]; then
        noconfirm=true
    elif [[ $arg == "--pull" ]]; then
        pull=true
    elif [[ $arg == "-u" ]] || [[ $arg == "--update" ]]; then
        update=true
    elif [[ $arg == "-v" ]] || [[ $arg == "--verbose" ]]; then
        verbose=true
    elif [[ $arg == "-h" ]] || [[ $arg == "--help" ]]; then
        echo "Helper script for the AUR directory, which tells you what packages need an update.
Usage: ./update.sh [options]
Options:
-c, --clean        Do 'git reset HEAD --hard' and 'git clean -fdx'.
-f, --fetch        Fetch the latest change from the upstream repos.
-m, --minimal      Only show directories in need for an update.
-u, --update       If an update is needed, 'makepkg -si'.
    --noconfirm    Pass the --noconfirm option to 'makepkg -si', if using the -u/--update option
    --pull         Pull the latest changes from the repo before running any command. Note that this might fail!
-v, --verbose      Don't suppress the output of any command run within the script."
        exit 0
    fi
done

for dir in *; do
    if [ -d "$dir" ]; then
        cd $dir
        if $fetch; then
            if $verbose; then
                git fetch --all
            else
                git fetch --all --quiet
            fi
        fi

        BEHIND=$(git rev-list HEAD...origin/master --count)
        if [[ $BEHIND -eq 0 ]]; then
            if ! $minimal; then
                echo "[ ] $(pwd) is up to date"
            fi
        else
            echo "[X] $(pwd) is $BEHIND commits behind"

            if $update; then
                if $pull; then
                    if $verbose; then
                        git pull --all
                    else
                        git pull --all --quiet
                    fi
                fi

                if $noconfirm; then
                    if $verbose; then
                        makepkg -si --noconfirm
                    else
                        makepkg -si --noconfirm > /dev/null
                    fi
                else
                    if $verbose; then
                        makepkg -si
                    else
                        makepkg -si > /dev/null
                    fi
                fi
            fi
        fi

        if $clean; then
            if $verbose; then
                git reset HEAD --hard
                git clean -fdx
            else
                git reset HEAD --hard --quiet
                git clean -fdx --quiet
            fi
        fi

        cd ..
    fi
done