#! /usr/bin/env bash

version=0.10.0-a.0.z
date="$(date +"%B %Y")"

trap 'exit 1' ERR
set -o errtrace # Trap in functions.

function info () { echo "$*" 1>&2; }
function error () { info "$*"; exit 1; }

while [ $# -gt 0 ]; do
  case $1 in
    --clean)
      rm -f b*.xhtml b*.tex b*.1
      rm -f build2-build-system-manual.xhtml
      rm -f build2-build-system-manual.tex
      rm -f build2-testscript-manual.xhtml
      rm -f build2-testscript-manual.tex
      rm -f *.ps *.pdf
      exit 0
      ;;
    *)
      error "unexpected $1"
      ;;
  esac
done

function compile ()
{
  local n=$1; shift

  # Use a bash array to handle empty arguments.
  #
  local o=()
  while [ $# -gt 0 ]; do
    o=("${o[@]}" "$1")
    shift
  done

  cli -I .. -v project="build2" -v version="$version" -v date="$date" \
--include-base-last "${o[@]}" --generate-html --html-prologue-file \
man-prologue.xhtml --html-epilogue-file man-epilogue.xhtml --html-suffix \
.xhtml ../build2/$n.cli

  cli -I .. -v project="build2" -v version="$version" -v date="$date" \
--include-base-last "${o[@]}" --generate-latex --latex-prologue-file \
man-prologue.tex --latex-epilogue-file man-epilogue.tex \
--latex-section-map "0=chapter*" --latex-section-map "1=chapter*" \
--latex-section-map "H=part*" --latex-section-map "h=section*" \
--latex-section-map "2=subsection*" ../build2/$n.cli

  run_pdflatex "$n" "a4"
  run_pdflatex "$n" "letter"

  cli -I .. -v project="build2" -v version="$version" -v date="$date" \
--include-base-last "${o[@]}" --generate-man --man-prologue-file \
man-prologue.1 --man-epilogue-file man-epilogue.1 --man-suffix .1 \
../build2/$n.cli
}

function run_pdflatex () # <name> <paper>
{
  local n="$1"
  local paper="$2"

  if [ "$paper" == "letter" ]; then
    sed -i 's/a4paper/letterpaper/' "$n.tex"
  fi

  pdflatex -output-format dvi -jobname="$n-$paper" "$n"
  dvips "$n-$paper.dvi"
  pdflatex -output-format pdf -jobname="$n-$paper" "$n"
  rm -f "$n-$paper".{aux,dvi,log,out,toc}
}

o="--output-prefix b-"

# A few special cases.
#
compile "b" $o --output-prefix "" --suppress-undocumented

pages=""

for p in $pages; do
  compile $p $o
done

# Manuals.
#

function compile_doc () # <file> <prefix> <suffix>
{
  local f="$1"
  local prefix="$2"
  local suffix="$3"

  compile_html_doc "$f" "$prefix" "$suffix"
  compile_latex_doc "$f" "$prefix" "$suffix" "a4"
  compile_latex_doc "$f" "$prefix" "$suffix" "letter"
}

function compile_html_doc () # <file> <prefix> <suffix>
{
  local f="$1"
  local prefix="$2"
  local suffix="$3"

  cli -I .. \
-v version="$(echo "$version" | sed -e 's/^\([^.]*\.[^.]*\).*/\1/')" \
-v date="$date" \
--generate-html --html-suffix .xhtml \
--html-prologue-file doc-prologue.xhtml \
--html-epilogue-file doc-epilogue.xhtml \
--link-regex '%intro(#.+)?%../../build2-toolchain/doc/build2-toolchain-intro.xhtml$1%' \
--link-regex '%bpkg([-.].+)%../../bpkg/doc/bpkg$1%' \
--link-regex '%bpkg(#.+)?%../../bpkg/doc/build2-package-manager-manual.xhtml$1%' \
--link-regex '%bdep([-.].+)%../../bdep/doc/bdep$1%' \
--link-regex '%testscript(#.+)?%build2-testscript-manual.xhtml$1%' \
--output-prefix "$prefix" \
--output-suffix "$suffix" \
"$f"
}

function compile_latex_doc () # <file> <prefix> <suffix> <paper>
{
  local f="$1"
  local prefix="$2"
  local suffix="$3"
  local paper="$4"

  cli -I .. \
-v version="$(echo "$version" | sed -e 's/^\([^.]*\.[^.]*\).*/\1/')" \
-v date="$date" \
--generate-latex \
--latex-prologue-file doc-prologue.tex \
--latex-epilogue-file doc-epilogue.tex \
--link-regex '%intro(#.+)?%../../build2-toolchain/doc/build2-toolchain-intro-'"$paper"'.pdf$1%' \
--link-regex '%bpkg([-.].+)?\.pdf%../../bpkg/doc/bpkg$1-'"$paper"'.pdf%' \
--link-regex '%bpkg(#.+)?%../../bpkg/doc/build2-package-manager-manual-'"$paper"'.pdf$1%' \
--link-regex '%bdep([-.].+)?\.pdf%../../bdep/doc/bdep$1-'"$paper"'.pdf%' \
--link-regex '%testscript(#.+)?%build2-testscript-manual-'"$paper"'.pdf$1%' \
--link-regex '%b([-.].+)%b-'"$paper"'$1%' \
--output-prefix "$prefix" \
--output-suffix "$suffix" \
"$f"

  local n="$2$(basename -s .cli $1)$3"

  run_pdflatex "$n" "$paper"
}

compile_doc manual.cli 'build2-build-system-'
compile_doc testscript.cli 'build2-' '-manual'

# Generate INSTALL in ../
#
cli --generate-txt -o .. --txt-suffix "" ../INSTALL.cli