#!/bin/env python

"""
# Main file.

A program to retrieve the definition of a french word (in french).

Maybe extended to other languages later.
"""

import sys
import argparse
import msgpack
import sqlite3
from os.path import exists

import ui


debug = False

if debug:
    DIR_PATH = 'assets/'
else:
    DIR_PATH = '/usr/share/dicofr/assets/'

sys.path.insert(-1, DIR_PATH)



dico = 'dicofr.db'


def get_def_sql(word):
    with sqlite3.connect(dico) as con:
        cur = con.cursor()
        data = (word, )
        cur.execute('''SELECT * FROM entry WHERE word = ?''', data)

        res = cur.fetchall()
        return list(map(lambda w: {'mot': w[0],
                                   'cat-gram': w[1],
                                   'API': w[2],
                                   'infos': w[3].split("\t"),
                                   'genre': w[4],
                                   'accord': w[5],
                                   'def': msgpack.unpackb(w[6], raw=False),
                                   }, res))


def get_def_sql_reg(word):
    with sqlite3.connect(dico) as con:
        cur = con.cursor()
        data = (word, )
        cur.execute('''SELECT * FROM entry WHERE word LIKE ?''', data)

        res = cur.fetchall()
        return list(map(lambda w: {'mot': w[0],
                                   'cat-gram': w[1],
                                   'API': w[2],
                                   'infos': w[3].split("\t"),
                                   'genre': w[4],
                                   'accord': w[5],
                                   'def': msgpack.unpackb(w[6], raw=False),
                                   }, res))


def matching(word):
    """
        Find matching words in the list of words
    """

    matchingWord = []

    if not exists(arg.wordList):
        print(f'Error: Word list {arg.wordList} not found', file=sys.stderr)
        return

    with open(arg.wordList, 'rb') as f:
        msgpackList = f.read()
        listWord = msgpack.unpackb(msgpackList, raw=False)

        if word[0] != '/':
            for w in listWord:
                if word == w:
                    matchingWord.append(w)
        else:
            if word[-1] != '/' or len(word) <= 2:
                print("Erreur: Le format matching pour les regex est /MOT/",
                      file=sys.stderr)
                return []
            import re
            regex = re.compile(word[1:-1])

            for w in listWord:
                if regex.match(w):
                    matchingWord.append(w)

    return matchingWord


if __name__ == '__main__':
    if len(sys.argv) < 2:
      print("Erreur: Rechercher un mot\nUtilisez l'option -h pour avoir de l'aide",
            file=sys.stderr)
      exit(-1)

    # Si on n'arrive pas à trouver le dictionnaire
    if not exists(dico):
        if not exists(f'{DIR_PATH}/{dico}'):
            print('Error: No sqlite dictionnary', file=sys.stderr)
            exit(1)
        else:
            dico = f'{DIR_PATH}/{dico}'

    parser = argparse.ArgumentParser(description='Get a french word\'s definition')
    parser.add_argument('--sql', dest='action', action='store_const',
                        const=get_def_sql_reg, default=get_def_sql,
                        help='search a definition using SQL regex, '
                             '_ to match a letter, %% to match a group of letters')
    parser.add_argument('-m', '--matching', dest='matching', action='store_true',
                        help='search the french words that match the regex')
    parser.add_argument('word', metavar='PATTERN', type=str,
                        help='the word or the pattern to match')

    arg = parser.parse_args()

    if arg.matching:
        ret = matching(arg.word)
        for word in ret:
            print(word)
        if not ret:
            exit(1)
    else:
        for w in arg.action(arg.word):
            ui.show_terminal(w)