function parse_git_branch {
	git rev-parse --is-inside-work-tree &>/dev/null || return
	local branch=$(git symbolic-ref --short HEAD 2>/dev/null || git describe --tags --exact-match 2>/dev/null)

	echo "(${branch})"
}


## ✗ ✓ ↑ ↓ ↲ ↲ ↳ ↴ ↵ ↺ ➔ ➙ ➜ ➥
function parse_git_status {
	local symbol="✓" # clean state (up to date)

    if git rev-parse --is-inside-work-tree &>/dev/null; then
        local branch
        branch=$(git rev-parse --abbrev-ref HEAD 2>/dev/null)

		# Ahead / behind remote
        if [[ "$branch" != "HEAD" ]]; then
            local behind=$(git rev-list --count HEAD..origin/$branch 2>/dev/null || echo 0)
            local ahead=$(git rev-list --count origin/$branch..HEAD 2>/dev/null || echo 0)
            if [[ "$ahead" -gt 0 ]]; then
                symbol="↑"
            elif [[ "$behind" -gt 0 ]]; then
                symbol="↓"
            fi
        fi

		# Unstaged changes
        if ! git diff --quiet 2>/dev/null; then
            symbol="✗"
        fi
        if ! git diff --cached --quiet 2>/dev/null; then
            symbol="✗"
        fi

		# untracked files
        if git ls-files --others --exclude-standard -z | grep -q .; then
            symbol="?"
        fi
    fi

    echo "${symbol}"
}

function set_PS1 {
	WHITE="\[\033[01;015m\]"
	YELLOW="\[\033[01;33m\]"
	BLUE="\[\033[01;34m\]"
	RED="\[\033[01;31m\]"
	PINK="\[\033[01;35m\]"
	RESET="\[\033[0m\]"

	if git rev-parse --is-inside-work-tree &>/dev/null; then
		PS1="${YELLOW}\u@\h ${BLUE}[$(basename "$PWD")]${RED}$(parse_git_branch) ${RESET}$(parse_git_status) ${PINK}\$:${RESET} "
	else
		PS1="${WHITE}\u@\h \$: ${RESET}"
		#PS1="\[\033[01;015m\]\u@\h $: \[\033[0m\]"
	fi
}

set_PS1
PROMPT_COMMAND=set_PS1