#!/usr/bin/python
#
# Copyright (C) 2011 Reece H. Dunn
# Licence: GPLv3
#
# A script for generating the dictionary Makefile rules from the files in dictsource.

import sys
import os

voices = set()
dictionaries = {}

# Map voice names to dictionaries when these do not match.
special_voices = {
	'zh-yue': 'zhy',
}

def find_voices(path):
	for filename in os.listdir(path):
		voice_path = os.path.join(path, filename)
		if os.path.isdir(voice_path):
			if not filename in ['!v', 'mb']:
				find_voices(voice_path)
		else:
			if filename in special_voices.keys():
				voices.add(special_voices[filename])
			else:
				voices.add(filename)

find_voices('espeak-data/voices')

for filename in os.listdir('dictsource'):
	if filename.endswith('_rules') or filename.endswith('_list') or filename.endswith('_listx'):
		dic, cat = filename.split('_')
		if dic in voices:
			if not dic in dictionaries.keys():
				dictionaries[dic] = []
			dictionaries[dic].append('dictsource/%s' % filename)

def write_dictionary_make_rules(f):
	f.write('##### dictionaries:\n')
	f.write('\n')
	f.write('dictionaries: \\\n')
	for n, name in enumerate(sorted(dictionaries.keys())):
		if not name in ['bo']: # espeak fails to read these voices
			if n == len(dictionaries.keys()) - 1:
				f.write('\tespeak-data/%s_dict\n' % name)
			else:
				f.write('\tespeak-data/%s_dict \\\n' % name)
	for name, files in sorted(dictionaries.items()):
		f.write('\n')
		f.write('%s: espeak-data/%s_dict\n' % (name, name))
		f.write('dictsource/%s_extra:\n' % name)
		f.write('\ttouch dictsource/%s_extra\n' % name)
		f.write('espeak-data/%s_dict: src/espeak espeak-data/phontab %s dictsource/%s_extra\n' % (name, ' '.join(sorted(files)), name))
		f.write('\tcd dictsource && ESPEAK_DATA_PATH=$(PWD) ../src/espeak --compile=%s && cd ..\n' % name)

try:
	filename = sys.argv[1]
except:
	filename = None

if filename:
	with open(filename, 'r') as f:
		prelude = f.read().split('##### dictionaries:\n')[0]
	with open(filename, 'w') as f:
		f.write(prelude)
		write_dictionary_make_rules(f)
else:
	write_dictionary_make_rules(sys.stdout)