#!/usr/bin/bash

dir=$(dirname $0)

[[ -e "$dir/target/release/cprintf" ]] || cd "$dir" && cargo build --release

cd "$dir/target/release/"

function pause {

    echo
    if [[ -z ${skip+x} ]]
    then
        echo -e "\e[2mPress the ANY key to continue ;P\e[0m"
        read -n 1 -s -r
        echo -e "\e[2J"
    fi

}

pr() {

    echo
    set -x
    ./cprintf "$1" "${@:2}"
    { set +x; } 2>/dev/null;
        echo

        echo
        pause
        echo
    }

prnp() {

    echo
    set -x
    ./cprintf "$1" "${@:2}"
    { set +x; } 2>/dev/null;
        echo

    }

# Clear the screen
echo -e "\e[2J"

base() {

    echo 'Basic features'
    echo
    echo
    echo

    echo 'Canonical cprintf: format and placeholder + arguments'
    pr '{}' 'Hi there!'

    echo 'Add a color specifier with a parameter {color=...}'
    pr '{color=red}' 'Look!'

    echo 'Add a color specifier with a symbol {#...}'
    pr '{#green}' 'Easy colors!'

    echo 'Arguments are optional if there is no specifier'
    pr 'Hello, world!'

    echo 'Positional arguments'
    pr '{} + {} = {}' 1 2 3
}

color_features() {

    echo 'Add colors everywhere'
    echo
    echo
    echo

    echo 'Long notation'
    pr 'A word: {color=green}' 'color='

    echo 'Short notation'
    pr 'A hash {#blue}' '#'

    echo 'The colors can be specified using 3 notations'
    prnp 'The ANSI code: {color=1}' 'color=1'
    prnp 'A single letter: {color=r}' 'color=r'
    pr 'A word: {color=red}' 'color=red'

    echo 'Background color'
    pr 'The background color can be selected using {#/blue}' '#/color'

    echo 'You can change the foreground and the background'
    pr '{#blue/white}' 'Blue over White'

    echo 'Or only the background'
    pr '{#/g}' 'Like this'

    echo 'Arbitrary colors'
    pr '{#w/54370f} and {#e8acca}' 'Poop' 'Toilet paper'

    echo 'Decimal notation'
    pr '{color=rgb(255,128,50) !bold}' 'Mechanical Orange'

    echo 'Real rainbow'
    pr "$(sed 's/.*/{%1 #&} /;' <<EOF | tr -d '\n'  | cat
ff0000
ff4400
ff8800
ffc800
f2ff00
aeff00
6aff00
26ff00
00ff1a
00ff5e
00ffa2
00ffe6
00d9ff
0095ff
0051ff
000dff
3700ff
7700ff
bb00ff
ff00ff
EOF
)" 'X'


}

col_row() {
    ./cprintf "{#$1}\t{#$2}\t{#$3}\n" $1 $2 $3
}

color_detail() {

    echo 'Color features details'
    echo
    echo
    echo

    pr 'Uses the {#r}{#g}{#b} notation' R G B
    pr 'and {#C}{#M}{#Y}{#k/w}{#W} notation' C M Y K W
    pr 'Long form {#r} {#g} {#b}' Red Green Blue
    pr 'and {#C} {#M} {#Y} {#k/w} {#W} conventions' Cyan Magenta Yellow Black White

    echo 'Here is a table of the available colors'
    echo -e 'Code\tLetter\tWord'

    ./cprintf "{#0/white}\t{#k/white}\t{#black/white}\n" 0 k black
    col_row 1 r red
    col_row 2 g green
    col_row 3 y yellow
    col_row 4 b blue
    col_row 5 m magenta
    col_row 6 c cyan
    col_row 7 w white

    pause

    echo
    echo 'The bright bit changes the color intensity'
    echo 'To use it, use the upper case notation'
    echo -e 'Code\tLetter\tWord'
    ./cprintf '{#8/w}\t{#k/w}\t{#K/w}\n' 8 K BLACK
    col_row 9 R RED
    col_row 10 G GREEN
    col_row 11 Y YELLOW
    col_row 12 B BLUE
    col_row 13 M MAGENTA
    col_row 14 C CYAN
    col_row 15 W WHITE

    echo
    echo 'Comparison between the regular and bright color modes'
    ./cprintf '{%1#r}{%1#y}{%1#g}{%1#c}{%1#b}{%1#m}' '█'
    echo
    ./cprintf '{%1#R}{%1#Y}{%1#G}{%1#C}{%1#B}{%1#M}' '█'
    echo
    pause
    echo

    echo 'The color codes come from the ANSI specification'
    prnp 'It has 4 components in 4 bits: 0b{#w}{#b}{#g}{#r}' L B G R
    pr '{#w} {#b} {#g} {#r}' Brightness Blue Green Red
    echo
    prnp '0b{#b}{#k/g}{#k/r} = 3 is {#y}' 0 1 1 yellow
    prnp '0b{#k/b}{#g}{#k/r} = 5 is {#m}' 1 0 1 magenta
    prnp '0b{#k/b}{#k/g}{#r} = 6 is {#c}' 1 1 0 cyan
    pr '0b{#k/b}{#k/g}{#k/r} = 7 is {#w}' 1 1 1 white
}

styles() {
    echo 'Font styles / weight / decoration'
    echo
    echo 'The ANSI spec supports 8 styles and they can be combined with colors'
    echo

    pause

    echo Bold
    pr '{#y}, {#y !bold}' regular bold

    echo 'Dim or faint'
    pr '{}, {!dim} or the equivalent {!faint}' regular dark faint

    echo 'Italic'
    pr '{}, {!italic}' regular 'fancy'

    echo 'Underline'
    pr '{}, {!underline}' regular underlined

    echo 'Blink'
    pr '{}, {#R !blink} ; {#k/C !blinking}' regular 'look at me' 'no, me!'

    echo 'Inverted / reversed'
    pr '{} VS {!invert} {#r !inverted} {#g !inverse} {#b !reverse} {#c !reversed}' Normy can\'t do like the others

    echo 'Hidden'
    pr '-->{!hidden}, {!invisible}<--' "Cant see me XP" spooky

    echo 'Strike through'
    pr '{}, {#r !strike} and also {#M !strikethrough}' regular wrong wrong

}

special_chars() {

    echo 'Use the usual c-style escape codes are supported'
    echo
    echo
    echo

    echo 'Bell'
    pr '{#yellow}\a!' Ding

    echo 'Backspace'
    pr '{#green}\b{#r}' 'Whoo~' 'ps!'

    echo 'Tabulation'
    pr '\t{#M}\t{#C}\t{#Y}' '⇥' '⇥' '⇥'

    echo 'New line'
    pr '{#g}\n{#b}' new line

    echo 'Vertical Tab'
    pr '1\v2\v3'

    echo 'Form feed'
    pr 'Page 1\fPage 2'

    echo 'Carriage return'
    pr '{#black/white}\r{#red}' 'I hate cprintf' 'I love '

}

quality_of_life() {
    echo 'Quality of life'
    echo
    echo
    echo

    echo 'Reference arguments by their index'
    pr '{index=2} {%1}' 1 2

    echo "The specifiers' order can be mixed"
    pr '{%1#red} {#blue%2}' 1 2

    echo 'Long and short notation may be mixed'
    pr '{%1 color=red} {index=2 #b}' red blue

    echo 'Special cases'
    echo
    echo "Don't fail when empty"
    pr '' ''

    echo "Don't require arguments when there is no specifier"
    pr 'No specification'

    echo 'Just concat when there are multiple arguments'
    pr '' 'One, ' 'two, ' 'three'

    echo 'Leave space around the spec to make it more readable'
    prnp '>{#Y/r!underline%1}<' 'Dense'
    pr '>{ color=YELLOW/red !underline index=1 }<' 'Spaced out'
}

if [[ ! -z "${1+x}" ]]
then
    $1
else
    base
    color_features
    color_detail
    styles
    special_chars
    quality_of_life
fi