# shellcheck disable=SC2034,SC2154

_promptGit_() {
    local s=''
    local branchName=''

    # Check if the current directory is in a Git repository.
    if [ "$(
        git rev-parse --is-inside-work-tree &>/dev/null
        echo "${?}"
    )" == '0' ]; then
        # check if the current directory is in .git before running git checks

        if [ "$(git rev-parse --is-inside-git-dir 2>/dev/null)" == 'false' ]; then

            # Ensure the index is up to date.
            git update-index --really-refresh -q &>/dev/null

            # Check for uncommitted changes in the index.
            if ! git diff --quiet --ignore-submodules --cached; then
                s+='+'
            fi

            # Check for unstaged changes.
            if ! git diff-files --quiet --ignore-submodules --; then
                s+='!'
            fi

            # Check for untracked files.
            if [ -n "$(git ls-files --others --exclude-standard)" ]; then
                s+='?'
            fi

            # Check for stashed files.
            if git rev-parse --verify refs/stash &>/dev/null; then
                s+='$'
            fi
        fi

        # Get the short symbolic ref.
        # If HEAD isn’t a symbolic ref, get the short SHA for the latest commit
        # Otherwise, just give up.
        branchName="$(git symbolic-ref --quiet --short HEAD 2>/dev/null \
            || git rev-parse --short HEAD 2>/dev/null \
            || echo '(unknown)')"

        [ -n "${s}" ] && s=" [${s}]"

        echo -e "${1}${branchName}${s}"
    else
        return
    fi
}

export PS1="\[$WHITE\]________________________________________________________________________________\n| \
\[${bold}${purple}\]\u \[$white\]at \[$yellow\]\h \
\[$white\]in \[$green\]\w\[$white\]\$([[ -n \$(git branch 2> /dev/null) ]] && echo \" on \")\
\[$purple\]\$(_promptGit_ \"$purple\")\[$white\]\[$reset\] \
\n\[$white\]| =>\[$reset\] "
export PS2="\[$white\]→ $reset"
