#!/usr/bin/env bash

# Only run for interactive shells
[[ $- != *i* ]] && return

# Load debian_chroot if available
[[ -z ${debian_chroot:-} && -r /etc/debian_chroot ]] && debian_chroot=$(< /etc/debian_chroot)

# Determine if color prompt should be used
color_prompt=
if [[ -n ${force_color_prompt:-} ]] || [[ ${TERM} =~ ^(xterm-color|.*-256color)$ ]]; then
    if [[ -x /usr/bin/tput ]] && tput setaf 1 >&/dev/null; then
        color_prompt=yes
    fi
fi

# Set PS1 based on color support
if [[ ${color_prompt} == yes ]]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi

# Set window title for xterm/rxvt
if [[ ${TERM} =~ ^(xterm|rxvt) ]]; then
    PS1="\[\e]0;${debian_chroot:+(${debian_chroot})}\u@\h: \w\a\]${PS1}"
fi

# Clean up
unset color_prompt force_color_prompt

# Enable color support for ls and grep if available
if [[ -x /usr/bin/dircolors ]]; then
    if [[ -r ~/.dircolors ]]; then
        eval "$(dircolors -b ~/.dircolors)"
    else
        eval "$(dircolors -b)"
    fi

    # Color aliases
    alias ls='ls --color=auto'
    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

# Alert alias for desktop notifications
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

# Load custom aliases if file exists
[[ -f ~/.bash_aliases ]] && . ~/.bash_aliases

# Enable bash completion if available and not in posix mode
if ! shopt -oq posix; then
    if [[ -f /usr/share/bash-completion/bash_completion ]]; then
        . /usr/share/bash-completion/bash_completion
    elif [[ -f /etc/bash_completion ]]; then
        . /etc/bash_completion
    fi
fi

# Load custom prompt script if it exists
[[ -f /usr/local/bin/prompt.sh ]] && . /usr/local/bin/prompt.sh