# vim: syn=sh ts=4 sts=4 sw=4 smartindent autoindent expandtab ff=unix

git-initialize() {
    USAGE="git-initialize -u USER -e EMAIL [-b DEFAULT_BRANCH] [-S SSH_KEY] [-s SSH_COMMAND]"
    args=$( getopt "b:e:s:S:u:" $* )
    if [ $? -ne 0 ]; then
        echo "$USAGE"
        return 2
    fi

    local default_branch=main
    local user="$USER"
    local email=""
    local ssh_key=""
    local ssh_command=""

    set -- $args
    while :; do
        case "$1" in
            -b)
                local default_branch="$2"
                shift; shift
                ;;
            -e)
                local email="$2"
                shift; shift
                ;;
            -S)
                local ssh_key="$2"
                shift; shift
                ;;
            -s)
                local ssh_command="$2"
                shift; shift
                ;;
            -u)
                local user="$2"
                shift; shift
                ;;
            --)
                shift; break
                ;;
        esac
    done

    if [ -z "$email" ]; then
        read -p "Email: " __git_email__
        local email=$__git_email__
        unset __git_email__
    fi

    signingkey=$( gpgsm --list-secret-keys | egrep '(key usage|ID)' | grep -v CertifyID |grep -B 1 digitalSignature | awk '/ID/ {print $2}' )

    git config --global user.name "$user"
    git config --global user.email "$email"
    git config --global init.defaultBranch "$default_branch"
    if [ -n "$ssh_command" ]; then
        git config --global core.sshCommand "$ssh_command"
    elif [ -n "$ssh_key" ]; then
        git config --global core.sshCommand "ssh -i \"$ssh_key\""
    fi
}

git-init-smime() {
    USAGE="git-init-smime [-cgh] CERT_ID"

    args=$( getopt "cCgh" $* )
    if [ $? -ne 0 ]; then
        echo $USAGE
        return 2
    fi
    set -- $args

    local sign_commits=""
    local global=""

    while :; do
        case "$1" in
            -C)
                local sign_commits=NO
                shift
                ;;
            -c)
                local sign_commits=YES
                shift
                ;;
            -g)
                local global="--global"
                shift
                ;;
            -h)
                cat << EOF
git-init-smime              HELP

SYNOPSIS
  $USAGE

OPTIONS
  -C        Disable automatic signing of commits. 
            [DEFAULT: no change]
  -c        Enable automatic signing of commits.
            [DEFAULT: no change]
  -g        Set global GIT options.
  -h        Print this help message and exit.
EOF
                shift; return
                ;;
            --)
                shift; break
                ;;
        esac
    done

    if [ -z "$1" ]; then
        echo "No CERT_ID given! Obtain the ID with \"gpgsm --list-secret-keys\"" >&2
        echo "$USAGE"
        return 2
    fi

    git config $global user.signingkey "$1"
    git config $global gpg.format x509
    if [ "$sign_commits" = "YES" ]; then 
        git config $global commit.gpgsign true
    elif [ "$sign_commits" = "NO" ]; then
        git config $global commit.gpgsign false
    fi
}

git-init-gpg() {
    echo TODO
}

git-commit-timestamp() {
    winver=$(which winver)
    if [ -n "$WINVER" ]; then
        local hostname="$(hostname)"
    else
        local hostname="$(hostname)"
    fi

    local msg="$(date "+%Y.%m.%d %H:%M:%S") ($hostname)"
    git commit -m "$msg"
}

git-push-all() {
    local branch="$(git branch --show-current)"
    for __remote in $(git remote show); do
        git push "$__remote" "$branch"
    done
    unset __remote
}

git-tags-push() {
    for remote in $(git remote show); do
        git push --tags "$remote"
    done
}

git-mktag() {
    if [ $# -lt 1 ]; then
        echo "No tags given!" >&2
        echo "SYNOPSIS:"
        echo "  git-mkttag <TAG_NAME> ..."
    fi

    while [ $# -gt 0 ]; do
        git tag "$1"
        shift
    done

    git-tags-push
}

# ALIASES
alias gitdc='git-commit-timestamp'
alias gpa='git-push-all'
alias gittp='git-tags-push'
alias gitmt='git-mktag'
alias gitcb='git branch --show-current'