# -*-python-*-

import glob
import os
import re
import sys

here = os.getcwd ()
reldir = str (Dir ('.').srcnode ())
os.chdir (reldir)
sources = glob.glob ('*.tely')
pngs = glob.glob ('*.png')
os.chdir (here)

Import ('env')
outdir = os.path.join (env['build'], reldir, env['out'])

def verbose_opt (env, opt):
	if env['verbose']:
		return opt
	return ''

LILYPOND_BIN = env['LILYPOND_BIN']
LILYPONDPREFIX = env['LILYPONDPREFIX']

mfbuild = os.path.join (env['absbuild'], 'mf', env['out'])
lilybuild = os.path.join (env['absbuild'], 'lily', env['out'])
userbuild = os.path.join (env['absbuild'], 'Documentation/user', env['out'])

# more of these? -- howto?
env.Depends ('lilypond.texi', os.path.join (mfbuild, 'feta16list.ly'))
env.Depends ('lilypond.texi', os.path.join (mfbuild, 'parmesan16list.ly'))
# or these
env.Depends ('doc', os.path.join (mfbuild, 'feta20.enc'))
env.Depends ('doc', os.path.join (mfbuild, 'feta20.enc'))

env.Depends ('lilypond.texi', LILYPOND_BIN)
env.Depends ('lilypond.texi', 'lilypond-internals.texi')

##env.Depends ('lilypond.texi', 'fonts')

# simple:
env.Depends ('doc', mfbuild)

png_stems = map (lambda x: os.path.splitext (x)[0], pngs)
epss = map (env.Png2eps, png_stems)
env.Depends ('lilypond.texi', epss)

env.Command ('lilypond-internals.texi', LILYPOND_BIN,
	   ('(cd ${TARGET.dir} && \
	   LILYPONDPREFIX=%(LILYPONDPREFIX)s %(LILYPOND_BIN)s ' \
	    + verbose_opt (env, ' --verbose') \
	    + ' ' + os.path.join (env['srcdir'], 'ly/generate-documentation')\
	    + ')') % vars ())

doc_stems = map (lambda x: os.path.splitext (x)[0], sources)
texis = map (env.Tely2texi, doc_stems)
dvis = map (env.Texi2dvi, doc_stems)
pss = map (env.PostScript, map (lambda x: x + '.dvi', doc_stems))
pdfs = map (env.Dvi2pdf, doc_stems)


def file_subst (file_name, find, subst):
	find_re = re.compile (find, re.MULTILINE)
	s = open (file_name).read ()
	t = re.sub (find_re, subst, s)
	if s != t:
		os.rename (file_name, file_name + '~')
		h = open (file_name, "w")
		h.write (t)
		h.close ()

docdir = os.path.join (env['srcdir'], 'Documentation')
out = env['out']
srcdir = env['srcdir']
verbose = verbose_opt (env, ' --verbose')
a = ('makeinfo -I%(reldir)s -I${SOURCE.dir}'\
     + ' --output=${TARGET.dir}'\
     + ' --css-include=%(docdir)s/texinfo.css'\
     + ' --html%(verbose)s'\
     + ' $SOURCE &&' \
     + ' makeinfo -I%(reldir)s -I${SOURCE.dir}' \
     + ' --output=$TARGET' \
     + ' --css-include=%(docdir)s/texinfo.css' \
     + ' --html --no-split --no-headers %(verbose)s' \
     + ' $SOURCE') % vars ()
def url_fixup (target, source, env):
	file_subst (str (target[0]),
		    '\.\./lilypond-internals', 'lilypond-internals/')
c = 'pwd; ln -f %(userbuild)s/*.png %(userbuild)s/*.ly ${TARGET.dir}/' % vars ()
e = env.Copy ()
e.Command ('lilypond/lilypond.html', 'lilypond.texi', [a, url_fixup, c])
e.Command ('lilypond-internals/lilypond-internals.html',
	   'lilypond-internals.texi', a)

env.Alias ('doc', texis)
env.Alias ('doc', dvis)
env.Alias ('doc', pss)
env.Alias ('doc', pdfs)

env.Alias ('doc', 'lilypond-internals/lilypond.html')
env.Alias ('doc', 'lilypond-internals/lilypond-internals.html')

#testing
all_sources = ['SConscript',] + sources + pngs
x = env.Tar (env['tarball'], all_sources)