#!/bin/bash

prefix='al_'

mkalias_with_prefix()
{
	alias ${prefix}$1="$1"
}

pdf_a5()
{
	pdfjam "$1" --scale 0.71 --offset '0 50mm' -o "a5_$1"
}
mkalias_with_prefix 'pdf_a5'

pdf_a6()
{
	pdfjam "$1" --scale 0.5 --offset '0 75mm' -o "a6_$1"
}
mkalias_with_prefix 'pdf_a6'

pdf_pagenum()
{
	pdfjam  --preamble '\usepackage{fancyhdr} \pagestyle{fancy} \topmargin -65pt \oddsidemargin 150pt \rfoot{} \cfoot{} \rhead{} \chead{\Large\thepage} \renewcommand {\headrulewidth}{0pt} \renewcommand {\footrulewidth}{0pt} '  --pagecommand '\thispagestyle{fancy}' -o "pagenum_$1" "$1"
}
mkalias_with_prefix 'pdf_pagenum'

pdf_contrast_correct()
{
	pdfjam  --preamble '\usepackage{fancyhdr} \pagestyle{fancy} \topmargin -65pt \oddsidemargin 150pt \rfoot{} \cfoot{} \rhead{} \chead{\Large\thepage} \renewcommand {\headrulewidth}{0pt} \renewcommand {\footrulewidth}{0pt} '  --pagecommand '\thispagestyle{fancy}' -o "pagenum_$1" "$1"
}
mkalias_with_prefix 'pdf_contrast_correct'

pdf_gamma_correct()
{
	gamma=$2
	[ gamma == '' ] && gamma=3

	mkdir tmp
	convert -density 300 $1 tmp/output-%03d.jpg
	convert tmp/output*.jpg -gamma ${gamma} tmp/final-%03d.jpg
	# convert tmp/output*.jpg -level 0% tmp/final-%03d.jpg
	convert tmp/final*.jpg new_$1
}
mkalias_with_prefix 'pdf_gamma_correct'

pdf_all_to_one_file()
{
	in_files_pattern=$1
	[ in_files_pattern == '' ] && in_files_pattern='*.pdf'

	convert -density 300 "${in_files_pattern}" -density 300 all.pdf
}
mkalias_with_prefix 'pdf_all_to_one_file'

alias ${prefix}archive_each_file_into_separate_archive="find . -mindepth 1 -maxdepth 1 -type f -exec tar -cvzf 'out/{}.tgz' '{}' \;"

unicode_U200B_correct ()
{
	perl -CSD -pe "s/\N{U+200B}//gu" < $1 > noU200B_$1
}
mkalias_with_prefix 'unicode_U200B_correct'

festival_txt2mp3 ()
{
	in_file=$1
	out_wav_file_name="$1.wav"
	out_mp3_file_name="$1.mp3"
	cat "$1" | sed 's/[^a-zA-ZА-Яа-я0-9., ]//g' | text2wave -o "$out_wav_file_name"
	lame "$out_wav_file_name" "$out_mp3_file_name"
	rm "$out_wav_file_name"
}
mkalias_with_prefix 'festival_txt2mp3'

encode_240()
{
	for filename in "$1"; do 
		echo "Take '${filename}'"; 
		if [ -f "${filename}" ]; then
			echo "Make '${filename}'"; 
			ffmpeg -i "${filename}" -vcodec libx264 -vb 50K -s 240x180 -acodec libmp3lame -ab 16K -strict -2 "${filename}_240.mkv"
		fi
	done
}
mkalias_with_prefix 'encode_240'

union_video_and_audio()
{
	ffmpeg -i $1  -i $2 -c:a aac -b:a 128k -vcodec copy -map 0:v -map 1:a o.mp4
}
mkalias_with_prefix 'union_video_and_audio'

yt_download()
{
	~/.local/bin/yt-dlp -f "worst/worstvideo+worstaudio" -R 10000 -i -o "%(upload_date)s-%(title)s-%(id)s.%(ext)s" $1
}
mkalias_with_prefix 'yt_download'

alias ${prefix}gen_password='openssl rand -base64 10'

cur_dir=${alias_dir}
alias parse_arg_lib='${cur_dir}/../video_tools/parse_arg_lib'
alias ${prefix}img_and_wav2video='${cur_dir}/../video_tools/img_and_wav2video'
alias ${prefix}union_video_and_audio='${cur_dir}/../video_tools/union_video_and_audio.bash'

all_to_djvu()
{
	in_files_pattern=$1
	[ in_files_pattern == '' ] && in_files_pattern='*JPG'
	for i in ${in_files_pattern}; do bmptopnm $i > pnm/$i.pnm; done
	for i in *; do c44 -dpi 300 -slice 60+7+7 $i $i.djvu; done
	djvm -c new.djvu *.djvu
}
mkalias_with_prefix 'all_to_djvu'