# CONSTANTS

# MARGIN=0
PADDING=0
ANSI_RESET='\e[0m'

declare -A FG_COLORS
FG_COLORS["BLACK"]='\e[30m'
FG_COLORS["RED"]='\e[31m'
FG_COLORS["GREEN"]='\e[32m'
FG_COLORS["YELLOW"]='\e[33m'
FG_COLORS["BLUE"]='\e[34m'
FG_COLORS["PURPLE"]='\e[35m'
FG_COLORS["CYAN"]='\e[36m'
FG_COLORS["WHITE"]='\e[37m'
FG_COLORS["GRAY"]='\e[90m'
FG_COLORS["MAGENTA"]='\e[95m'

declare -A BG_COLORS
BG_COLORS["BLACK"]='\e[40m'
BG_COLORS["RED"]='\e[41m'
BG_COLORS["GREEN"]='\e[42m'
BG_COLORS["YELLOW"]='\e[43m'
BG_COLORS["BLUE"]='\e[44m'
BG_COLORS["PURPLE"]='\e[45m'
BG_COLORS["CYAN"]='\e[46m'
BG_COLORS["WHITE"]='\e[47m'
BG_COLORS["GRAY"]='\e[90m'
# BG_COLORS["MAGENTA"]='\e[95m'

# FUNCTIONS

function ansi_length {
  local clean_text
  clean_text=$(echo "$1" | sed 's/\x1B\[[0-9;]*m//g')
  echo "${#clean_text}"
}

function style_padding {
  local left right
  local padding_left=${PADDING_LEFT:-$PADDING}
  local padding_right=${PADDING_RIGHT:-$PADDING}

  left=$(for _ in $(seq 1 "${padding_left}"); do builtin echo -n ' '; done)
  style_ansi "$left"

  builtin echo -n "$1"

  right=$(for _ in $(seq 1 "${padding_right}"); do builtin echo -n ' '; done)
  style_ansi "$right"
}

function _style_fg {
  [[ -n $1 ]] && echo "${FG_COLORS[$1]}" || true
}

function _style_bg {
  [[ -n $1 ]] && echo "${BG_COLORS[$1]}" || true
}

function style_ansi {
  local fg bg
  fg=$(_style_fg "${FG:-}")
  bg=$(_style_bg "${BG:-}")
  [[ -n $fg ]] && builtin echo -en "$fg"
  [[ -n $bg ]] && builtin echo -en "$bg"
  builtin echo -en "$1"
  [[ -n $fg || -n $bg ]] && builtin echo -en "$ANSI_RESET"
  true
}

function style_block {
  local content length top bottom
  content=$(style_padding "$1")
  length=$(ansi_length "$content")

  top=$(
    builtin echo -n "╔"
    for _ in $(seq 1 "${length}"); do builtin echo -n '═'; done
    builtin echo "╗"
  )
  style_ansi "${top}" && echo

  style_ansi "║"
  style_ansi "${content}"
  style_ansi "║" && echo

  bottom=$(
    builtin echo -n "╚"
    for _ in $(seq 1 "${length}"); do builtin echo -n '═'; done
    builtin echo "╝"
  )

  style_ansi "${bottom}" && echo
}