#!/usr/bin/env bash
# shellcheck disable=1117 disable=1004 disable=2034 disable=2154

#  Customize BASH PS1 prompt to show current GIT repository and branch.
#  by Mike Stewart - http://MediaDoneRight.com

#  SETUP CONSTANTS
#  Bunch-o-predefined colors.  Makes reading code easier than escape sequences.
#  I don't remember where I found this.  o_O

# Reset
Color_Off="\[\033[0m\]"       # Text Reset

# Regular Colors
Black="\[\033[0;30m\]"        # Black
Red="\[\033[0;31m\]"          # Red
Green="\[\033[0;32m\]"        # Green
Yellow="\[\033[0;33m\]"       # Yellow
Blue="\[\033[0;34m\]"         # Blue
Purple="\[\033[0;35m\]"       # Purple
Cyan="\[\033[0;36m\]"         # Cyan
White="\[\033[0;37m\]"        # White

# Bold
BBlack="\[\033[1;30m\]"       # Black
BRed="\[\033[1;31m\]"         # Red
BGreen="\[\033[1;32m\]"       # Green
BYellow="\[\033[1;33m\]"      # Yellow
BBlue="\[\033[1;34m\]"        # Blue
BPurple="\[\033[1;35m\]"      # Purple
BCyan="\[\033[1;36m\]"        # Cyan
BWhite="\[\033[1;37m\]"       # White

# Underline
UBlack="\[\033[4;30m\]"       # Black
URed="\[\033[4;31m\]"         # Red
UGreen="\[\033[4;32m\]"       # Green
UYellow="\[\033[4;33m\]"      # Yellow
UBlue="\[\033[4;34m\]"        # Blue
UPurple="\[\033[4;35m\]"      # Purple
UCyan="\[\033[4;36m\]"        # Cyan
UWhite="\[\033[4;37m\]"       # White

# Background
On_Black="\[\033[40m\]"       # Black
On_Red="\[\033[41m\]"         # Red
On_Green="\[\033[42m\]"       # Green
On_Yellow="\[\033[43m\]"      # Yellow
On_Blue="\[\033[44m\]"        # Blue
On_Purple="\[\033[45m\]"      # Purple
On_Cyan="\[\033[46m\]"        # Cyan
On_White="\[\033[47m\]"       # White

# High Intensty
IBlack="\[\033[0;90m\]"       # Black
IRed="\[\033[0;91m\]"         # Red
IGreen="\[\033[0;92m\]"       # Green
IYellow="\[\033[0;93m\]"      # Yellow
IBlue="\[\033[0;94m\]"        # Blue
IPurple="\[\033[0;95m\]"      # Purple
ICyan="\[\033[0;96m\]"        # Cyan
IWhite="\[\033[0;97m\]"       # White

# Bold High Intensty
BIBlack="\[\033[1;90m\]"      # Black
BIRed="\[\033[1;91m\]"        # Red
BIGreen="\[\033[1;92m\]"      # Green
BIYellow="\[\033[1;93m\]"     # Yellow
BIBlue="\[\033[1;94m\]"       # Blue
BIPurple="\[\033[1;95m\]"     # Purple
BICyan="\[\033[1;96m\]"       # Cyan
BIWhite="\[\033[1;97m\]"      # White

# High Intensty backgrounds
On_IBlack="\[\033[0;100m\]"   # Black
On_IRed="\[\033[0;101m\]"     # Red
On_IGreen="\[\033[0;102m\]"   # Green
On_IYellow="\[\033[0;103m\]"  # Yellow
On_IBlue="\[\033[0;104m\]"    # Blue
On_IPurple="\[\033[10;95m\]"  # Purple
On_ICyan="\[\033[0;106m\]"    # Cyan
On_IWhite="\[\033[0;107m\]"   # White

# Various variables you might want for your PS1 prompt instead
Time12h="\T"
Time12a="\@"
PathShort="\w"
PathFull="\W"
NewLine="\n"
Jobs="\j"


# This PS1 snippet was adopted from code for MAC/BSD I saw from: http://allancraig.net/index.php?option=com_content&view=article&id=108:ps1-export-command-for-git&catid=45:general&Itemid=96
# I tweaked it to work on UBUNTU 11.04 & 11.10 plus made it mo' better

export PS1='$(if [ $? != 0 ]; then \
  echo "'$BIRed' (!!) '$Color_Off'"; \
fi)'$IBlack$Time12h$Color_Off' '$BYellow$PathShort/$Color_Off'\
$(git branch &>/dev/null;\
if [ $? -eq 0 ]; then \
  echo "$(\
    echo `git status` | grep "Changes" > /dev/null 2>&1                                && echo "'$IRed'"$(__git_ps1 " {%s}")"'$Color_Off'"; \
    echo `git status` | grep -v "Changes" | grep -E "to publish your local commits" > /dev/null 2>&1       && echo "'$IBlue'"$(__git_ps1 " [^%s^]")"'$Color_Off'"; \
    echo `git status` | grep -v "Changes" | grep -E "to update your local branch" > /dev/null 2>&1         && echo "'$IBlue'"$(__git_ps1 " [v%sv]")"'$Color_Off'"; \
    echo `git status` | grep -v "Changes" | grep -E -v "to publish|update your local branch" > /dev/null 2>&1 && echo "'$Green'"$(__git_ps1 " (%s)")"'$Color_Off'"; \
  )" - $(echo "'$IBlack'"`git sha7`"'$Color_Off'"); \
fi)$(if [[ $IN_NIX_SHELL != "" ]]; then\
  echo "\n'$IBlack'~>'$Color_Off' '$BIPurple''$IN_NIX_SHELL''$Purple' nix-shell'$Color_Off' ('$BIBlue'$name'$Color_Off')'$Color_Off'" ;\
fi)$(if [[ $GUIX_ENVIRONMENT != "" ]]; then\
  echo "\n'$IBlack'~>'$Color_Off' '$Purple'guix environment'$Color_Off' ('$BIBlue'$GUIX_ENVIRONMENT'$Color_Off')'$Color_Off'" ;\
fi)$(echo "\n'$BIPurple'\$'$Color_Off' ";)'


export end="\033[0m"
export black="\033[0;30m"
export blackb="\033[1;30m"
export white="\033[0;37m"
export whiteb="\033[1;37m"
export red="\033[0;31m"
export redb="\033[1;31m"
export green="\033[0;32m"
export greenb="\033[1;32m"
export yellow="\033[0;33m"
export yellowb="\033[1;33m"
export blue="\033[0;34m"
export blueb="\033[1;34m"
export purple="\033[0;35m"
export purpleb="\033[1;35m"
export lightblue="\033[0;36m"
export lightblueb="\033[1;36m"

function black {
  echo -e "${black}${1}${end}"
}
export -f black

function blackb {
  echo -e "${blackb}${1}${end}"
}
export -f blackb

function white {
  echo -e "${white}${1}${end}"
}
export -f white

function whiteb {
  echo -e "${whiteb}${1}${end}"
}
export -f whiteb

function red {
  echo -e "${red}${1}${end}"
}
export -f red

function redb {
  echo -e "${redb}${1}${end}"
}
export -f redb

function green {
  echo -e "${green}${1}${end}"
}
export -f green

function greenb {
  echo -e "${greenb}${1}${end}"
}
export -f greenb

function yellow {
  echo -e "${yellow}${1}${end}"
}
export -f yellow

function yellowb {
  echo -e "${yellowb}${1}${end}"
}
export -f yellowb

function blue {
  echo -e "${blue}${1}${end}"
}
export -f blue

function blueb {
  echo -e "${blueb}${1}${end}"
}
export -f blueb

function purple {
  echo -e "${purple}${1}${end}"
}
export -f purple

function purpleb {
  echo -e "${purpleb}${1}${end}"
}
export -f purpleb

function lightblue {
  echo -e "${lightblue}${1}${end}"
}
export -f lightblue

function lightblueb {
  echo -e "${lightblueb}${1}${end}"
}
export -f lightblueb

function colors {
  black "black"
  blackb "blackb"
  white "white"
  whiteb "whiteb"
  red "red"
  redb "redb"
  green "green"
  greenb "greenb"
  yellow "yellow"
  yellowb "yellowb"
  blue "blue"
  blueb "blueb"
  purple "purple"
  purpleb "purpleb"
  lightblue "lightblue"
  lightblueb "lightblueb"
}